Patent Grant
11450069
The present application generally relates to management of applications, including but not limited to systems and methods for using an embedded browser to manage and monitor web and software-as-a-service (SaaS) applications.
As the workforce of an enterprise becomes more mobile and work under various conditions, an individual can use one or more client devices, including personal devices, to access network resources such as web applications. Due to differences between the client devices and the manner in which network resources can be accessed, there are significant challenges to the enterprise in managing access to network resources and monitoring for potential misuse of resources.
In some instances, it may be desirable to allow users to use network applications without using a client application (e.g. using a standard or native web browser). For example, a user may be working remotely and may want to access a network application that is internal to a secure corporate network while the user is working on a computing device connected to an unsecure network. However, the content displayed in a network application may appear encoded, especially when the data has been previously tokenized.
The present disclosure addresses the technical problems described above. The present disclosure is directed towards systems and methods for using a transparent window to augment network application content displayed via a standard web browser. A client application executing on a client device or a transparent window manager of the client application can be configured to provide a transparent window to provide additional information or content related to content of a network application that is accessed by an underlying window of browser executing on the client device. The client application can be configured to resize the transparent window to match dimensions of an underlying window displaying the network application. The client application can be configured to place the transparent window over the underlying window. Furthermore, the client application can be configured to track changes in the size, position and visibility of the underlying window and synchronize the transparent window to the changes. The client application can be configured to detect encoded or tokenized fields of content in the underlying window, and may replace the encoded or tokenized fields with clear text decoded information in the transparent window. The decoded information may be presented in the transparent window. The client application can be configured to pass mouse and keyboard input to the network application displayed in the underlying window via the transparent window. The client application may encode the keyboard input. The client application may authenticate a user to enable decoding of content in the underlying window. Decoding may be governed by enterprise policy, including risk based analytics policy that may govern the user's access in the context of the device, location, behavior, and history.
The transparent window can potentially provide additional augmentation to the underlying window displaying network application content. For example, the underlying window may display customer information. By overlaying the underlying window with the transparent window, the client application may show additional information related to the customer such as outstanding customer feature requests. The additional information may be retrieved from a second device or server, such as a server that provides the client application or a server of the enterprise to which the user belongs.
In one aspect, this disclosure is directed to a method for using a transparent window to augment an application. The method includes establishing a transparent window to be displayed in synchronization over a first window of an application on a client device. The content of the application in the first window is viewable through the transparent window. The method further includes detecting, by the transparent window, one or more encoded portions of content of the application being displayed in the first window, and displaying, by and in the transparent window, a decoded form of the one or more encoded portions of the content of the application displayed in the first window.
In some embodiments, establishing the transparent window to be displayed in synchronization over the first window of the application on the client device further includes one of placing or moving the transparent window over the first window.
In some embodiments, establishing the transparent window to be displayed in synchronization over the first window of the application on the client device further includes tracking by the transparent window changes in one of size, position or visibility of the first window to synchronize with the first window.
In some embodiments, detecting, by the transparent window, the one or more encoded portions of content of the application being displayed in the first window further includes decoding, by the transparent window, the one or more encoded portions of the content of the application displayed in the first window. Displaying, by and in the transparent window, the decoded form of the one or more encoded portions of the content of the application displayed in the first window further may include displaying the decoded content in the transparent window over the one or more encoded portions in the first window.
In some embodiments, detecting, by the transparent window, the one or more encoded portions of content of the application being displayed in the first window further includes determining, by the transparent window, to one of decode or display in decoded form the one or more encoded portions based at least on a policy.
In some embodiments, the one or more encoded portions of content include one of tokenized or encrypted fields.
In some embodiments, the method further includes passing, by the transparent window, one of pointer or keyboard input to the first window.
In some embodiments, the method further includes authenticating, by the transparent window, a user of the client device to view in the transparent window the decoded form of the one or more encoded portions of the content of the application displayed in the first window.
In some embodiments, the application includes a browser accessing a network application on one or more servers.
In another aspect, this disclosure is directed to a method for using a transparent window to augment a network application. The method includes establishing a transparent window to be displayed in synchronization over a first window of an application on a client device. The content of the application in the first window is viewable through the transparent window. The method further includes detecting, by the transparent window, a portion of content of the application being displayed in the first window to be augmented with additional content, and displaying, by and in the transparent window, additional content in association with the portion content of the application displayed in the first window.
In some embodiments, establishing the transparent window to be displayed in synchronization over the first window of an application on the client device, the content of the application in the first window viewable through the transparent window further includes tracking by the transparent window changes in one of size, position or visibility of the first window to synchronize with the first window.
In some embodiments, the method further includes passing, by the transparent window, one of pointer or keyboard input to the first window.
In some embodiments, the method further includes authenticating, by the transparent window, a user of the client device to view the additional content in the transparent window.
In some embodiments, detecting, by the transparent window, the portion of content of the application being displayed in the first window to be augmented with the additional content further includes identifying the portion of content of the application in display of the first window and obtaining, by the transparent window using the identified portion, the additional content associated with the content from a second device.
In another aspect, this disclosure is directed to a system for using a transparent window to augment an application. The system includes a transparent window executable on one or more processors of a client device and configured to be placed on a first window of an application displaying content in the first window. The transparent window is configured to be displayed in synchronization over and with the first window and detect portions of content of the application in the first window viewable through the transparent window. The transparent window is configured to display one of augmented content in association with the portion of content of the application displayed in the first window or a decoded form of one or more encoded portions of content of the application displayed in the first window.
In some embodiments, the transparent window is further configured to track changes in one of size, position or visibility of the first window to synchronize with the first window.
In some embodiments, displaying the decoded form of the one or more encoded portions of content of the application displayed in the first window further includes determining, by the transparent window, to one of decode or display in decoded form the one or more encoded portions based at least on a policy.
In some embodiments, the transparent window is further configured to pass one of pointer or keyboard input to the first window.
In some embodiments, the transparent window is further configured to authenticate a user of the client device to view one of the additional content or the decoded form of the one or more encoded portions in the transparent window.
In some embodiments, the application includes a browser accessing a network application on one or more servers.
The foregoing and other objects, aspects, features, and advantages of the present solution will become more apparent and better understood by referring to the following description taken in conjunction with the accompanying drawings, in which:
The features and advantages of the present solution will become more apparent from the detailed description set forth below when taken in conjunction with the drawings, in which like reference characters identify corresponding elements throughout. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.
For purposes of reading the description of the various embodiments below, the following descriptions of the sections of the specification and their respective contents may be helpful:
Section A describes a computing environment which may be useful for practicing embodiments described herein.
Section B describes systems and methods for an embedded browser.
Section C describes systems and methods for using a transparent window to augment an application.
A. Computing Environment
Prior to discussing the specifics of embodiments of the systems and methods detailed herein in Section B, it may be helpful to discuss the computing environments in which such embodiments may be deployed.
As shown in
Computer 101 as shown in
Communications interfaces 118 may include one or more interfaces to enable computer 101 to access a computer network such as a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or the Internet through a variety of wired and/or wireless or cellular connections.
In described embodiments, the computing device 101 may execute an application on behalf of a user of a client computing device. For example, the computing device 101 may execute a virtual machine, which provides an execution session within which applications execute on behalf of a user or a client computing device, such as a hosted desktop session. The computing device 101 may also execute a terminal services session to provide a hosted desktop environment. The computing device 101 may provide access to a computing environment including one or more of: one or more applications, one or more desktop applications, and one or more desktop sessions in which one or more applications may execute.
Additional details of the implementation and operation of network environment, computer 101 and client and server computers may be as described in U.S. Pat. No. 9,538,345, issued Jan. 3, 2017 to Citrix Systems, Inc. of Fort Lauderdale, Fla., the teachings of which are hereby incorporated herein by reference.
B. Systems and Methods for an Embedded Browser
The present disclosure is directed towards systems and methods of an embedded browser. A client application executing on a client device can allow a user to access applications (apps) that are served from and/or hosted on one or more servers, such as web applications and software-as-a-service (SaaS) applications (hereafter sometimes generally referred to as network applications). A browser that is embedded or integrated with the client application can render to the user a network application that is accessed or requested via the client application, and can enable interactivity between the user and the network application. The browser is sometimes referred to as an embedded browser, and the client application with embedded browser (CEB) is sometimes referred to as a workspace application. The client application can establish a secure connection to the one or more servers to provide an application session for the user to access the network application using the client device and the embedded browser. The embedded browser can be integrated with the client application to ensure that traffic related to the network application is routed through and/or processed in the client application, which can provide the client application with real-time visibility to the traffic (e.g., when decrypted through the client application), and user interactions and behavior. The embedded browser can provide a seamless experience to a user as the network application is requested via the user interface (shared by the client application and the embedded browser) and rendered through the embedded browser within the same user interface.
The client application can terminate one end of a secured connection established with a server of a network application, such as a secure sockets layer (SSL) virtual private network (VPN) connection. The client application can receive encrypted traffic from the network application, and can decrypt the traffic before further processing (e.g., rendering by the embedded browser). The client application can monitor the received traffic (e.g., in encrypted packet form), and also have full visibility into the decrypted data stream and/or the SSL stack. This visibility can allow the client application to perform or facilitate policy-based management (e.g., including data loss prevention (DLP) capabilities), application control (e.g., to improve performance, service level), and collection and production of analytics. For instance, the local CEB can provide an information technology (IT) administrator with a controlled system for deploying web and SaaS applications through the CEB, and allow the IT administrator to set policies or configurations via the CEB for performing any of the forgoing activities.
Many web and SaaS delivered applications connect from web servers to generic browsers (e.g., Internet Explorer, Firefox, and so on) of users. Once authenticated, the entire session of such a network application is encrypted. However, in this scenario, an administrator may not have visibility, analytics, or control of the content entering the network application from the user's digital workspace, or the content leaving the network application and entering the user's digital workspace. Moreover, content of a network application viewed in a generic browser can be copied or downloaded (e.g., by a user or program) to potentially any arbitrary application or device, resulting in a possible breach in data security.
This present systems and methods can ensure that traffic associated with a network application is channeled through a CEB. By way of illustration, when a user accesses a SaaS web service with security assertion markup language (SAML) enabled for instance, the corresponding access request can be forwarded to a designated gateway service that determines, checks or verifies if the CEB was used to make the access request. Responsive to determining that a CEB was used to make the access request, the gateway service can perform or provide authentication and single-sign-on (SSO), and can allow the CEB to connect directly to the SaaS web service. Encryption (e.g., standard encryption) can be used for the application session between the CEB and the SaaS web service. When the content from the web service is unencrypted in the CEB to the viewed via the embedded browser, and/or when input is entered via the CEB, the CEB can provide added services on selective application-related information for control and analytics for instance. For example, an analytics agent or application programming interface (API) can be embedded in the CEB to provide or perform the added services.
The CEB (sometimes referred to as workspace application or receiver) can interoperate with one or more gateway services, intermediaries and/or network servers (sometimes collectively referred to as cloud services or Citrix Cloud) to provide access to a network application. Features and elements of an environment related to the operation of an embodiment of cloud services are described below.
In some embodiments, the operating system of the client device may be separated into a managed partition 210 and an unmanaged partition 212. The managed partition 210 may have policies applied to it to secure the applications running on and data stored in the managed partition. The applications running on the managed partition may be secure applications. In other embodiments, all applications may execute in accordance with a set of one or more policy files received separate from the application, and which define one or more security parameters, features, resource restrictions, and/or other access controls that are enforced by the client device management system when that application is executing on the device. By operating in accordance with their respective policy file(s), each application may be allowed or restricted from communications with one or more other applications and/or resources, thereby creating a virtual partition. Thus, as used herein, a partition may refer to a physically partitioned portion of memory (physical partition), a logically partitioned portion of memory (logical partition), and/or a virtual partition created as a result of enforcement of one or more policies and/or policy files across multiple apps as described herein (virtual partition). Stated differently, by enforcing policies on managed apps, those apps may be restricted to only be able to communicate with other managed apps and trusted enterprise resources, thereby creating a virtual partition that is not accessible by unmanaged apps and devices.
The secure applications may be email applications, web browsing applications, software-as-a-service (SaaS) access applications, Windows Application access applications, and the like. The client application can include a secure application launcher 218. The secure applications may be secure native applications 214, secure remote applications 222 executed by the secure application launcher 218, virtualization applications 226 executed by the secure application launcher 218, and the like. The secure native applications 214 may be wrapped by a secure application wrapper 220. The secure application wrapper 220 may include integrated policies that are executed on the client device 202 when the secure native application is executed on the device. The secure application wrapper 220 may include meta-data that points the secure native application 214 running on the client device 202 to the resources hosted at the enterprise that the secure native application 214 may require to complete the task requested upon execution of the secure native application 214. The secure remote applications 222 executed by a secure application launcher 218 may be executed within the secure application launcher application 218. The virtualization applications 226 executed by a secure application launcher 218 may utilize resources on the client device 202, at the enterprise resources 204, and the like. The resources used on the client device 202 by the virtualization applications 226 executed by a secure application launcher 218 may include user interaction resources, processing resources, and the like. The user interaction resources may be used to collect and transmit keyboard input, mouse input, camera input, tactile input, audio input, visual input, gesture input, and the like. The processing resources may be used to present a user interface, process data received from the enterprise resources 204, and the like. The resources used at the enterprise resources 204 by the virtualization applications 226 executed by a secure application launcher 218 may include user interface generation resources, processing resources, and the like. The user interface generation resources may be used to assemble a user interface, modify a user interface, refresh a user interface, and the like. The processing resources may be used to create information, read information, update information, delete information, and the like. For example, the virtualization application may record user interactions associated with a graphical user interface (GUI) and communicate them to a server application where the server application may use the user interaction data as an input to the application operating on the server. In this arrangement, an enterprise may elect to maintain the application on the server side as well as data, files, etc., associated with the application. While an enterprise may elect to “mobilize” some applications in accordance with the principles herein by securing them for deployment on the client device (e.g., via the client application), this arrangement may also be elected for certain applications. For example, while some applications may be secured for use on the client device, others might not be prepared or appropriate for deployment on the client device so the enterprise may elect to provide the mobile user access to the unprepared applications through virtualization techniques. As another example, the enterprise may have large complex applications with large and complex data sets (e.g., material resource planning applications) where it would be very difficult, or otherwise undesirable, to customize the application for the client device so the enterprise may elect to provide access to the application through virtualization techniques. As yet another example, the enterprise may have an application that maintains highly secured data (e.g., human resources data, customer data, engineering data) that may be deemed by the enterprise as too sensitive for even the secured mobile environment so the enterprise may elect to use virtualization techniques to permit mobile access to such applications and data. An enterprise may elect to provide both fully secured and fully functional applications on the client device. The enterprise can use a client application, which can include a virtualization application, to allow access to applications that are deemed more properly operated on the server side. In an embodiment, the virtualization application may store some data, files, etc., on the mobile phone in one of the secure storage locations. An enterprise, for example, may elect to allow certain information to be stored on the phone while not permitting other information.
In connection with the virtualization application, as described herein, the client device may have a virtualization application that is designed to present GUIs and then record user interactions with the GUI. The virtualization application may communicate the user interactions to the server side to be used by the server side application as user interactions with the application. In response, the application on the server side may transmit back to the client device a new GUI. For example, the new GUI may be a static page, a dynamic page, an animation, or the like, thereby providing access to remotely located resources.
The secure applications may access data stored in a secure data container 228 in the managed partition 210 of the client device. The data secured in the secure data container may be accessed by the secure wrapped applications 214, applications executed by a secure application launcher 222, virtualization applications 226 executed by a secure application launcher 218, and the like. The data stored in the secure data container 228 may include files, databases, and the like. The data stored in the secure data container 228 may include data restricted to a specific secure application 230, shared among secure applications 232, and the like. Data restricted to a secure application may include secure general data 234 and highly secure data 238. Secure general data may use a strong form of encryption such as Advanced Encryption Standard (AES) 128-bit encryption or the like, while highly secure data 238 may use a very strong form of encryption such as AES 256-bit encryption. Data stored in the secure data container 228 may be deleted from the device upon receipt of a command from the device manager 224. The secure applications may have a dual-mode option 240. The dual mode option 240 may present the user with an option to operate the secured application in an unsecured or unmanaged mode. In an unsecured or unmanaged mode, the secure applications may access data stored in an unsecured data container 242 on the unmanaged partition 212 of the client device 202. The data stored in an unsecured data container may be personal data 244. The data stored in an unsecured data container 242 may also be accessed by unsecured applications 248 that are running on the unmanaged partition 212 of the client device 202. The data stored in an unsecured data container 242 may remain on the client device 202 when the data stored in the secure data container 228 is deleted from the client device 202. An enterprise may want to delete from the client device selected or all data, files, and/or applications owned, licensed or controlled by the enterprise (enterprise data) while leaving or otherwise preserving personal data, files, and/or applications owned, licensed or controlled by the user (personal data). This operation may be referred to as a selective wipe. With the enterprise and personal data arranged in accordance to the aspects described herein, an enterprise may perform a selective wipe.
The client device 202 may connect to enterprise resources 204 and enterprise services 208 at an enterprise, to the public Internet 248, and the like. The client device may connect to enterprise resources 204 and enterprise services 208 through virtual private network connections. The virtual private network connections, also referred to as microVPN or application-specific VPN, may be specific to particular applications (e.g., as illustrated by microVPNs 250), particular devices, particular secured areas on the client device (e.g., as illustrated by O/S VPN 252), and the like. For example, each of the wrapped applications in the secured area of the phone may access enterprise resources through an application specific VPN such that access to the VPN would be granted based on attributes associated with the application, possibly in conjunction with user or device attribute information. The virtual private network connections may carry Microsoft Exchange traffic, Microsoft Active Directory traffic, HyperText Transfer Protocol (HTTP) traffic, HyperText Transfer Protocol Secure (HTTPS) traffic, application management traffic, and the like. The virtual private network connections may support and enable single-sign-on authentication processes 254. The single-sign-on processes may allow a user to provide a single set of authentication credentials, which are then verified by an authentication service 258. The authentication service 258 may then grant to the user access to multiple enterprise resources 204, without requiring the user to provide authentication credentials to each individual enterprise resource 204.
The virtual private network connections may be established and managed by an access gateway 260. The access gateway 260 may include performance enhancement features that manage, accelerate, and improve the delivery of enterprise resources 204 to the client device 202. The access gateway may also re-route traffic from the client device 202 to the public Internet 248, enabling the client device 202 to access publicly available and unsecured applications that run on the public Internet 248. The client device may connect to the access gateway via a transport network 262. The transport network 262 may use one or more transport protocols and may be a wired network, wireless network, cloud network, local area network, metropolitan area network, wide area network, public network, private network, and the like.
The enterprise resources 204 may include email servers, file sharing servers, SaaS/Web applications, Web application servers, Windows application servers, and the like. Email servers may include Exchange servers, Lotus Notes servers, and the like. File sharing servers may include ShareFile servers, and the like. SaaS applications may include Salesforce, and the like. Windows application servers may include any application server that is built to provide applications that are intended to run on a local Windows operating system, and the like. The enterprise resources 204 may be premise-based resources, cloud based resources, and the like. The enterprise resources 204 may be accessed by the client device 202 directly or through the access gateway 260. The enterprise resources 204 may be accessed by the client device 202 via a transport network 262. The transport network 262 may be a wired network, wireless network, cloud network, local area network, metropolitan area network, wide area network, public network, private network, and the like.
Cloud services can include an access gateway 260 and/or enterprise services 208. The enterprise services 208 may include authentication services 258, threat detection services 264, device manager services 224, file sharing services 268, policy manager services 270, social integration services 272, application controller services 274, and the like. Authentication services 258 may include user authentication services, device authentication services, application authentication services, data authentication services and the like. Authentication services 258 may use certificates. The certificates may be stored on the client device 202, by the enterprise resources 204, and the like. The certificates stored on the client device 202 may be stored in an encrypted location on the client device, the certificate may be temporarily stored on the client device 202 for use at the time of authentication, and the like. Threat detection services 264 may include intrusion detection services, unauthorized access attempt detection services, and the like. Unauthorized access attempt detection services may include unauthorized attempts to access devices, applications, data, and the like. Device management services 224 may include configuration, provisioning, security, support, monitoring, reporting, and decommissioning services. File sharing services 268 may include file management services, file storage services, file collaboration services, and the like. Policy manager services 270 may include device policy manager services, application policy manager services, data policy manager services, and the like. Social integration services 272 may include contact integration services, collaboration services, integration with social networks such as Facebook, Twitter, and LinkedIn, and the like. Application controller services 274 may include management services, provisioning services, deployment services, assignment services, revocation services, wrapping services, and the like.
The enterprise mobility technical architecture 200 may include an application store 278. The application store 278 may include unwrapped applications 280, pre-wrapped applications 282, and the like. Applications may be populated in the application store 278 from the application controller 274. The application store 278 may be accessed by the client device 202 through the access gateway 260, through the public Internet 248, or the like. The application store may be provided with an intuitive and easy to use User Interface.
A software development kit 284 may provide a user the capability to secure applications selected by the user by providing a secure wrapper around the application. An application that has been wrapped using the software development kit 284 may then be made available to the client device 202 by populating it in the application store 278 using the application controller 274.
The enterprise mobility technical architecture 200 may include a management and analytics capability. The management and analytics capability may provide information related to how resources are used, how often resources are used, and the like. Resources may include devices, applications, data, and the like. How resources are used may include which devices download which applications, which applications access which data, and the like. How often resources are used may include how often an application has been downloaded, how many times a specific set of data has been accessed by an application, and the like.
In this case, the left hand side represents an enrolled client device 302 with a client agent 304, which interacts with gateway server 306 to access various enterprise resources 308 and services 309 such as Web or SaaS applications, Exchange, Sharepoint, public-key infrastructure (PKI) Resources, Kerberos Resources, Certificate Issuance service, as shown on the right hand side above. The gateway server 306 can include embodiments of features and functionalities of the cloud services, such as access gateway 260 and application controller functionality. Although not specifically shown, the client agent 304 may be part of, and/or interact with the client application which can operate as an enterprise application store (storefront) for the selection and/or downloading of network applications.
The client agent 304 can act as a UI (user interface) intermediary for Windows apps/desktops hosted in an Enterprise data center, which are accessed using the High-Definition User Experience (HDX) or Independent Computing Architecture (ICA) display remoting protocol. The client agent 304 can also support the installation and management of native applications on the client device 302, such as native iOS or Android applications. For example, the managed applications 310 (mail, browser, wrapped application) shown in the figure above are native applications that execute locally on the device. Client agent 304 and application management framework of this architecture act to provide policy driven management capabilities and features such as connectivity and SSO (single sign on) to enterprise resources/services 308. The client agent 304 handles primary user authentication to the enterprise, for instance to access gateway (AG) with SSO to other gateway server components. The client agent 304 obtains policies from gateway server 306 to control the behavior of the managed applications 310 on the client device 302.
The Secure interprocess communication (IPC) links 312 between the native applications 310 and client agent 304 represent a management channel, which allows client agent to supply policies to be enforced by the application management framework 314 “wrapping” each application. The IPC channel 312 also allows client agent 304 to supply credential and authentication information that enables connectivity and SSO to enterprise resources 308. Finally the IPC channel 312 allows the application management framework 314 to invoke user interface functions implemented by client agent 304, such as online and offline authentication.
Communications between the client agent 304 and gateway server 306 are essentially an extension of the management channel from the application management framework 314 wrapping each native managed application 310. The application management framework 314 requests policy information from client agent 304, which in turn requests it from gateway server 306. The application management framework 314 requests authentication, and client agent 304 logs into the gateway services part of gateway server 306 (also known as NetScaler access gateway). Client agent 304 may also call supporting services on gateway server 306, which may produce input material to derive encryption keys for the local data vaults 316, or provide client certificates which may enable direct authentication to PKI protected resources, as more fully explained below.
In more detail, the application management framework 314 “wraps” each managed application 310. This may be incorporated via an explicit build step, or via a post-build processing step. The application management framework 314 may “pair” with client agent 304 on first launch of an application 310 to initialize the Secure IPC channel and obtain the policy for that application. The application management framework 314 may enforce relevant portions of the policy that apply locally, such as the client agent login dependencies and some of the containment policies that restrict how local OS services may be used, or how they may interact with the application 310.
The application management framework 314 may use services provided by client agent 304 over the Secure IPC channel 312 to facilitate authentication and internal network access. Key management for the private and shared data vaults 316 (containers) may be also managed by appropriate interactions between the managed applications 310 and client agent 304. Vaults 316 may be available only after online authentication, or may be made available after offline authentication if allowed by policy. First use of vaults 316 may require online authentication, and offline access may be limited to at most the policy refresh period before online authentication is again required.
Network access to internal resources may occur directly from individual managed applications 310 through access gateway 306. The application management framework 314 is responsible for orchestrating the network access on behalf of each application 310. Client agent 304 may facilitate these network connections by providing suitable time limited secondary credentials obtained following online authentication. Multiple modes of network connection may be used, such as reverse web proxy connections and end-to-end VPN-style tunnels 318.
The Mail and Browser managed applications 310 can have special status and may make use of facilities that might not be generally available to arbitrary wrapped applications. For example, the Mail application may use a special background network access mechanism that allows it to access Exchange over an extended period of time without requiring a full AG logon. The Browser application may use multiple private data vaults to segregate different kinds of data.
This architecture can support the incorporation of various other security features. For example, gateway server 306 (including its gateway services) in some cases might not need to validate active directory (AD) passwords. It can be left to the discretion of an enterprise whether an AD password is used as an authentication factor for some users in some situations. Different authentication methods may be used if a user is online or offline (i.e., connected or not connected to a network).
Step up authentication is a feature wherein gateway server 306 may identify managed native applications 310 that are allowed to have access to more sensitive data using strong authentication, and ensure that access to these applications is only permitted after performing appropriate authentication, even if this means a re-authentication is requested from the user after a prior weaker level of login.
Another security feature of this solution is the encryption of the data vaults 316 (containers) on the client device 302. The vaults 316 may be encrypted so that all on-device data including clipboard/cache data, files, databases, and configurations are protected. For on-line vaults, the keys may be stored on the server (gateway server 306), and for off-line vaults, a local copy of the keys may be protected by a user password or biometric validation. When data is stored locally on the device 302 in the secure container 316, it is preferred that a minimum of AES 256 encryption algorithm be utilized.
Other secure container features may also be implemented. For example, a logging feature may be included, wherein all security events happening inside an application 310 are logged and reported to the backend. Data wiping may be supported, such as if the application 310 detects tampering, associated encryption keys may be written over with random data, leaving no hint on the file system that user data was destroyed. Screenshot protection is another feature, where an application may prevent any data from being stored in screenshots. For example, the key window's hidden property may be set to YES. This may cause whatever content is currently displayed on the screen to be hidden, resulting in a blank screenshot where any content would normally reside.
Local data transfer may be prevented, such as by preventing any data from being locally transferred outside the application container, e.g., by copying it or sending it to an external application. A keyboard cache feature may operate to disable the autocorrect functionality for sensitive text fields. SSL certificate validation may be operable so the application specifically validates the server SSL certificate instead of it being stored in the keychain. An encryption key generation feature may be used such that the key used to encrypt data on the device is generated using a passphrase or biometric data supplied by the user (if offline access is required). It may be XORed with another key randomly generated and stored on the server side if offline access is not required. Key Derivation functions may operate such that keys generated from the user password use KDFs (key derivation functions, notably Password-Based Key Derivation Function 2 (PBKDF2)) rather than creating a cryptographic hash of it. The latter makes a key susceptible to brute force or dictionary attacks.
Further, one or more initialization vectors may be used in encryption methods. An initialization vector might cause multiple copies of the same encrypted data to yield different cipher text output, preventing both replay and cryptanalytic attacks. This may also prevent an attacker from decrypting any data even with a stolen encryption key. Further, authentication then decryption may be used, wherein application data is decrypted only after the user has authenticated within the application. Another feature may relate to sensitive data in memory, which may be kept in memory (and not in disk) only when it's needed. For example, login credentials may be wiped from memory after login, and encryption keys and other data inside objective-C instance variables are not stored, as they may be easily referenced. Instead, memory may be manually allocated for these.
An inactivity timeout may be implemented via the CEB, wherein after a policy-defined period of inactivity, a user session is terminated.
Data leakage from the application management framework 314 may be prevented in other ways. For example, when an application 310 is put in the background, the memory may be cleared after a predetermined (configurable) time period. When backgrounded, a snapshot may be taken of the last displayed screen of the application to fasten the foregrounding process. The screenshot may contain confidential data and hence should be cleared.
Another security feature relates to the use of an OTP (one time password) 320 without the use of an AD (active directory) 322 password for access to one or more applications. In some cases, some users do not know (or are not permitted to know) their AD password, so these users may authenticate using an OTP 320 such as by using a hardware OTP system like SecurID (OTPs may be provided by different vendors also, such as Entrust or Gemalto). In some cases, after a user authenticates with a user ID, a text is sent to the user with an OTP 320. In some cases, this may be implemented only for online use, with a prompt being a single field.
An offline password may be implemented for offline authentication for those applications 310 for which offline use is permitted via enterprise policy. For example, an enterprise may want storefront to be accessed in this manner. In this case, the client agent 304 may require the user to set a custom offline password and the AD password is not used. Gateway server 306 may provide policies to control and enforce password standards with respect to the minimum length, character class composition, and age of passwords, such as described by the standard Windows Server password complexity requirements, although these requirements may be modified.
Another feature relates to the enablement of a client side certificate for certain applications 310 as secondary credentials (for the purpose of accessing PKI protected web resources via the application management framework micro VPN feature). For example, an application may utilize such a certificate. In this case, certificate-based authentication using ActiveSync protocol may be supported, wherein a certificate from the client agent 304 may be retrieved by gateway server 306 and used in a keychain. Each managed application may have one associated client certificate, identified by a label that is defined in gateway server 306.
Gateway server 306 may interact with an Enterprise special purpose web service to support the issuance of client certificates to allow relevant managed applications to authenticate to internal PKI protected resources.
The client agent 304 and the application management framework 314 may be enhanced to support obtaining and using client certificates for authentication to internal PKI protected network resources. More than one certificate may be supported, such as to match various levels of security and/or separation requirements. The certificates may be used by the Mail and Browser managed applications, and ultimately by arbitrary wrapped applications (provided those applications use web service style communication patterns where it is reasonable for the application management framework to mediate https requests).
Application management client certificate support on iOS may rely on importing a public-key cryptography standards (PKCS) 12 BLOB (Binary Large Object) into the iOS keychain in each managed application for each period of use. Application management framework client certificate support may use a HTTPS implementation with private in-memory key storage. The client certificate might never be present in the iOS keychain and might not be persisted except potentially in “online-only” data value that is strongly protected.
Mutual SSL or TLS may also be implemented to provide additional security by requiring that a client device 302 is authenticated to the enterprise, and vice versa. Virtual smart cards for authentication to gateway server 306 may also be implemented.
Both limited and full Kerberos support may be additional features. The full support feature relates to an ability to do full Kerberos login to Active Directory (AD) 322, using an AD password or trusted client certificate, and obtain Kerberos service tickets to respond to HTTP Negotiate authentication challenges. The limited support feature relates to constrained delegation in Citrix Access Gateway Enterprise Edition (AGEE), where AGEE supports invoking Kerberos protocol transition so it can obtain and use Kerberos service tickets (subject to constrained delegation) in response to HTTP Negotiate authentication challenges. This mechanism works in reverse web proxy (aka corporate virtual private network (CVPN)) mode, and when http (but not https) connections are proxied in VPN and MicroVPN mode.
Another feature relates to application container locking and wiping, which may automatically occur upon jail-break or rooting detections, and occur as a pushed command from administration console, and may include a remote wipe functionality even when an application 310 is not running.
A multi-site architecture or configuration of enterprise application store and an application controller may be supported that allows users to be service from one of several different locations in case of failure.
In some cases, managed applications 310 may be allowed to access a certificate and private key via an API (example OpenSSL). Trusted managed applications 310 of an enterprise may be allowed to perform specific Public Key operations with an application's client certificate and private key. Various use cases may be identified and treated accordingly, such as when an application behaves like a browser and no certificate access is used, when an application reads a certificate for “who am I,” when an application uses the certificate to build a secure session token, and when an application uses private keys for digital signing of important data (e.g., transaction log) or for temporary data encryption.
Referring now to
Each of the above-mentioned elements or entities is implemented in hardware, or a combination of hardware and software, in one or more embodiments. Each component of the system 400 may be implemented using hardware or a combination of hardware or software detailed above in connection with
The client device 402 can include any embodiment of a computing device described above in connection with at least
The client application 404 can include one or more components, such as an embedded browser 410, a networking agent 412, a cloud services agent 414 (sometimes referred to as management agent), a remote session agent 416 (sometimes referred to as HDX engine), and/or a secure container 418 (sometimes referred to as secure cache container). One or more of the components can be installed as part of a software build or release of the client application 404 or CEB, or separately acquired or downloaded and installed/integrated into an existing installation of the client application 404 or CEB for instance. For instance, the client device may download or otherwise receive the client application 404 (or any component) from the network device(s) 432. In some embodiments, the client device may send a request for the client application 404 to the network device(s) 432. For example, a user of the client device can initiate a request, download and/or installation of the client application. The network device(s) 432 in turn may send the client application to the client device. In some embodiments, the network device(s) 432 may send a setup or installation application for the client application to the client device. Upon receipt, the client device may install the client application onto a hard disk of the client device. In some embodiments, the client device may run the setup application to unpack or decompress a package of the client application. In some embodiments, the client application may be an extension (e.g., an add-on, an add-in, an applet or a plug-in) to another application (e.g., a networking agent 412) installed on the client device. The client device may install the client application to interface or inter-operate with the pre-installed application. In some embodiments, the client application may be a standalone application. The client device may install the client application to execute as a separate process.
The embedded browser 410 can include elements and functionalities of a web browser application or engine. The embedded browser 410 can locally render network application(s) as a component or extension of the client application. For instance, the embedded browser 410 can render a SaaS/Web application inside the CEB which can provide the CEB with full visibility and control of the application session. The embedded browser can be embedded or incorporated into the client application via any means, such as direct integration (e.g., programming language or script insertion) into the executable code of the client application, or via plugin installation. For example, the embedded browser can include a Chromium based browser engine or other type of browser engine, that can be embedded into the client application, using the Chromium embedded framework (CEF) for instance. The embedded browser can include a HTML5-based layout graphical user interface (GUI). The embedded browser can provide HTML rendering and JavaScript support to a client application incorporating various programming languages. For example, elements of the embedded browser can bind to a client application incorporating C, C++, Delphi, Go, Java, .NET/Mono, Visual Basic 6.0, and/or Python.
In some embodiments, the embedded browser comprises a plug-in installed on the client application. For example, the plug-in can include one or more components. One such components can be an ActiveX control or Java control or any other type and/or form of executable instructions capable of loading into and executing in the client application. For example, the client application can load and run an Active X control of the embedded browser, such as in a memory space or context of the client application. In some embodiments, the embedded browser can be installed as an extension on the client application, and a user can choose to enable or disable the plugin or extension. The embedded browser (e.g., via the plugin or extension) can form or operate as a secured browser for securing, using and/or accessing resources within the secured portion of the digital workspace.
The embedded browser can incorporate code and functionalities beyond that available or possible in a standard or typical browser. For instance, the embedded browser can bind with or be assigned with a secured container 418, to define at least part of the secured portion of a user's digital workspace. The embedded browser can bind with or be assigned with a portion of the client device's cache to form a secured clipboard (e.g., local to the client device, or extendable to other devices), that can be at least part of the secured container 418. The embedded browser can be integrated with the client application to ensure that traffic related to network applications is routed through and/or processed in the client application, which can provide the client application with real-time visibility to the traffic (e.g., when decrypted through the client application). This visibility to the traffic can allow the client application to perform or facilitate policy-based management (e.g., including data loss prevention (DLP) capabilities), application control, and collection and production of analytics.
In some embodiments, the embedded browser incorporates one or more other components of the client application 404, such as the cloud services agent 414, remote session agent 416 and/or secure container 418. For instance, a user can use the cloud services agent 414 of the embedded browser to interoperate with the access gateway 422 (sometimes referred to as CIS) to access a network application. For example, the cloud services agent 414 can execute within the embedded browser, and can receive and transmit navigation commands from the embedded browser to a hosted network application. The cloud services agent can use a remote presentation protocol to display the output generated by the network application to the embedded browser. For example, the cloud services agent 414 can include a HTML5 web client that allows end users to access remote desktops and/or applications on the embedded browser.
The client application 404 and CEB operate on the application layer of the operational (OSI) stack of the client device. The client application 404 can include and/or execute one or more agents that interoperate with the cloud services 408. The client application 404 can receive, obtain, retrieve or otherwise access various policies (e.g., an enterprise's custom, specified or internal policies or rules) and/or data (e.g., from an access gateway 422 and/or network device(s) of cloud services 408, or other server(s), that may be managed by the enterprise). The client application can access the policies and/or data to control and/or manage a network application (e.g., a SaaS, web or remote-hosted application). Control and/or management of a network application can include control and/or management of various aspects of the network application, such as access control, session delivery, available features or functions, service level, traffic management and monitoring, and so on. The network application can be from a provider or vendor of the enterprise (e.g., salesforce.com, SAP, Microsoft Office 365), from the enterprise itself, or from another entity (e.g., Dropbox or Gmail service).
For example, the cloud services agent 414 can provide policy driven management capabilities and features related to the use and/or access of network applications. For example, the cloud services agent 414 can include a policy engine to apply one or more policies (e.g., received from cloud services) to determine access control and/or connectivity to resources such as network applications. When a session is established between the client application and a server 430 providing a SaaS application for instance, the cloud services agent 414 can apply one or more policies to control traffic levels and/or traffic types (or other aspects) of the session, for instance to manage a service level of the SaaS application. Additional aspects of the application traffic that can be controlled or managed can include encryption level and/or encryption type applied to the traffic, level of interactivity allowed for a user, limited access to certain features of the network application (e.g., print-screen, save, edit or copy functions), restrictions to use or transfer of data obtained from the network application, limit concurrent access to two or more network applications, limit access to certain file repositories or other resources, and so on.
The cloud services agent 414 can convey or feed information to analytics services 424 of the cloud services 408, such as information about SaaS interaction events visible to the CEB. Such a configuration using the CEB can monitor or capture information for analytics without having an inline device or proxy located between the client device and the server(s) 430, or using a SaaS API gateway ‘out-of-band’ approach. In some embodiments, the cloud services agent 414 does not execute within the embedded browser. In these embodiments, a user can similarly use the cloud services agent 414 to interoperate with the access gateway (or CIS) 422 to access a network application. For instance, the cloud services agent 414 can register and/or authenticate with the access gateway (or CIS) 422, and can obtain a list of the network applications from the access gateway (or CIS) 422. The cloud services agent 414 can include and/or operate as an application store (or storefront) for user selection and/or downloading of network applications. Upon logging in to access a network application, the cloud services agent 414 can intercept and transmit navigation commands from the embedded browser to the network application. The cloud services agent can use a remote presentation protocol to display the output generated by the network application to the embedded browser. For example, the cloud services agent 414 can include a HTML5 web client that allows end users to access remote desktops and/or applications on the embedded browser.
In some embodiments, the cloud services agent 414 provides single sign on (SSO) capability for the user and/or client device to access a plurality of network applications. The cloud services agent 414 can perform user authentication to access network applications as well as other network resources and services, by communicating with the access gateway 422 for instance. For example, the cloud services agent 414 can authenticate or register with the access gateway 422, to access other components of the cloud services 408 and/or the network applications 406. Responsive to the authentication or registration, the access gateway 422 can perform authentication and/or SSO for (or on behalf of) the user and/or client application, with the network applications.
The client application 404 can include a networking agent 412. The networking agent 412 is sometimes referred to as a software-defined wide area network (SD-WAN) agent, mVPN agent, or microVPN agent. The networking agent 412 can establish or facilitate establishment of a network connection between the client application and one or more resources (e.g., server 430 serving a network application). The networking agent 412 can perform handshaking for a requested connection from the client application to access a network application, and can establish the requested connection (e.g., secure or encrypted connection). The networking agent 412 can connect to enterprise resources (including services) for instance via a virtual private network (VPN). For example, the networking agent 412 can establish a secure socket layer (SSL) VPN between the client application and a server 430 providing the network application 406. The VPN connections, sometimes referred to as microVPN or application-specific VPN, may be specific to particular network applications, particular devices, particular secured areas on the client device, and the like, for instance as discussed above in connection with
The remote session agent 416 (sometimes referred to as HDX engine) can include features of the client agent 304 discussed above in connection with
The client application or CEB can include or be associated with a secure container 418. A secure container can include a logical or virtual delineation of one or more types of resources accessible within the client device and/or accessible by the client device. For example, the secure container 418 can refer to the entirety of the secured portion of the digital workspace, or particular aspect(s) of the secured portion. In some embodiments, the secure container 418 corresponds to a secure cache (e.g., electronic or virtual clipboard), and can dynamically incorporate a portion of a local cache of each client device of a user, and/or a cloud-based cache of the user, that is protected or secured (e.g., encrypted). The secure container can define a portion of file system(s), and/or delineate resources allocated to a CEB and/or to network applications accessed via the CEB. The secure container can include elements of the secure data container 228 discussed above in connection with
In certain embodiments, a secure container relates to or involves the use of a secure browser (e.g., embedded browser 410 or secure browser 420) that implements various enterprise security features. Network applications (or web pages accessed by the secure browser) that are configured to run within the secure browser can effectively inherit the security mechanisms implemented by the secure browser. These network applications can be considered to be contained within the secure container. The use of such a secure browser can enable an enterprise to implement a content filtering policy in which, for example, employees are blocked from accessing certain web sites from their client devices. The secure browser can be used, for example, to enable client device users to access a corporate intranet without the need for a VPN.
In some embodiments, a secure container can support various types of remedial actions for protecting enterprise resources. One such remedy is to lock the client device, or a secure container on the client device that stores data to be protected, such that the client device or secure container can only be unlocked with a valid code provided by an administrator for instance. In some embodiments, these and other types of remedies can be invoked automatically based on conditions detected on the client device (via the application of policies for instance), or can be remotely initiated by an administrator.
In some embodiments, a secure container can include a secure document container for documents. A document can comprise any computer-readable file including text, audio, video, and/or other types of information or media. A document can comprise any single one or combination of these media types. As explained herein, the secure container can help prevent the spread of enterprise information to different applications and components of the client device, as well as to other devices. The enterprise system (which can be partially or entirely within a cloud network) can transmit documents to various devices, which can be stored within the secure container. The secure container can prevent unauthorized applications and other components of the client device from accessing information within the secure container. For enterprises that allow users to use their own client devices for accessing, storing, and using enterprise data, providing secure container on the client devices helps to secure the enterprise data. For instance, providing secure containers on the client devices can centralize enterprise data in one location on each client device, and can facilitate selective or complete deletion of enterprise data from each client device when desired.
The secure container can include an application that implements a file system that stores documents and/or other types of files. The file system can comprise a portion of a computer-readable memory of the client device. The file system can be logically separated from other portions of the computer-readable memory of the client device. In this way, enterprise data can be stored in a secure container and private data can be stored in a separate portion of the computer-readable memory of the client device for instance. The secure container can allow the CEB, network applications accessed via the CEB, locally installed applications and/or other components of the client device to read from, write to, and/or delete information from the file system (if authorized to do so). Deleting data from the secure container can include deleting actual data stored in the secure container, deleting pointers to data stored in the secure container, deleting encryption keys used to decrypt data stored in the secure container, and the like. The secure container can be installed by, e.g., the client application, an administrator, or the client device manufacturer. The secure container can enable some or all of the enterprise data stored in the file system to be deleted without modifying private data stored on the client device outside of the secure container. The file system can facilitate selective or complete deletion of data from the file system. For example, an authorized component of the enterprise's system can delete data from the file system based on, e.g., encoded rules. In some embodiments, the client application can delete the data from the file system, in response to receiving a deletion command from the enterprise's system.
The secure container can include an access manager that governs access to the file system by applications and other components of the client device. Access to the file system can be governed based on document access policies (e.g., encoded rules) maintained by the client application, in the documents and/or in the file system. A document access policy can limit access to the file system based on (1) which application or other component of the client device is requesting access, (2) which documents are being requested, (3) time or date, (4) geographical position of the client device, (5) whether the requesting application or other component provides a correct certificate or credentials, (6) whether the user of the client device provides correct credentials, (7) other conditions, or any combination thereof. A user's credentials can comprise, for example, a password, one or more answers to security questions (e.g., What is the mascot of your high school?), biometric information (e.g., fingerprint scan, eye-scan), and the like. Hence, by using the access manager, the secure container can be configured to be accessed only by applications that are authorized to access the secure container. As one example, the access manager can enable enterprise applications installed on the client device to access data stored in the secure container and to prevent non-enterprise applications from accessing the data stored in the secure container.
Temporal and geographic restrictions on document access may be useful. For example, an administrator may deploy a document access policy that restricts the availability of the documents (stored within the secure container) to a specified time window and/or a geographic zone (e.g., as determined by a GPS chip) within which the client device must reside in order to access the documents. Further, the document access policy can instruct the secure container or client application to delete the documents from the secure container or otherwise make them unavailable when the specified time period expires or if the client device is taken outside of the defined geographic zone.
Some documents can have access policies that forbid the document from being saved within the secure container. In such embodiments, the document can be available for viewing on the client device only when the user is logged in or authenticated via the cloud services for example.
The access manager can also be configured to enforce certain modes of connectivity between remote devices (e.g., an enterprise resource or other enterprise server) and the secure container. For example, the access manager can require that documents received by the secure container from a remote device and/or sent from the secure container to the remote device be transmitted through secured tunnels/connections, for example. The access manager can require that all documents transmitted to and from the secure container be encrypted. The client application or access manager can be configured to encrypt documents sent from the secure container and decrypt documents sent to the secure container. Documents in the secure container can also be stored in an encrypted form.
The secure container can be configured to prevent documents or data included within documents or the secure container from being used by unauthorized applications or components of the client device or other devices. For instance, a client device application having authorization to access documents from the secure container can be programmed to prevent a user from copying a document's data and pasting it into another file or application interface, or locally saving the document or document data as a new file outside of the secure container. Similarly, the secure container can include a document viewer and/or editor that do not permit such copy/paste and local save operations. Moreover, the access manager can be configured to prevent such copy/paste and local save operations. Further, the secure container and applications programmed and authorized to access documents from the secure container can be configured to prevent users from attaching such documents to emails or other forms of communication.
One or more applications (e.g., applications installed on the client device, and/or network applications accessed via the CEB) can be programmed or controlled (e.g., via policy-based enforcement) to write enterprise-related data only into the secure container. For instance, an application's source code can be provided with the resource name of the secure container. Similarly, a remote application (e.g., executing on a device other than the client device) can be configured to send data or documents only to the secure container (as opposed to other components or memory locations of the client device). Storing data to the secure container can occur automatically, for example, under control of the application, the client application, and/or the secure browser. The client application can be programmed to encrypt or decrypt documents stored or to be stored within the secure container. In certain embodiments, the secure container can only be used by applications (on the client device or a remote device) that are programmed to identify and use the secure container, and which have authorization to do so.
The network applications 406 can include sanctioned network applications 426 and non-sanctioned network applications 428. By way of a non-limiting example, sanctioned network applications 426 can include network applications from Workday, Salesforce, Office 365, SAP, and so on, while non-sanctioned network applications 426 can include network applications from Dropbox, Gmail, and so on. For instance,
In operation (2), in response to the registration or authentication, the access gateway 422 can identify or retrieve a list of enumerated network applications available or pre-assigned to the user, and can provide the list to the client application. For example, in response to the registration or authentication, the access gateway can identify the user and/or retrieve a user profile of the user. According to the identity and/or user profile, the access gateway can determine the list (e.g., retrieve a stored list of network applications matched with the user profile and/or the identity of the user). The list can correspond to a list of network applications sanctioned for the user. The access gateway can send the list to the client application or embedded browser, which can be presented via the client application or embedded browser to the user (e.g., in a storefront user interface) for selection.
In operation (3), the user can initiate connection to a sanctioned network application (e.g., a SaaS application), by selecting from the list of network applications presented to the user. For example, the user can click on an icon or other representation of the sanctioned network application, displayed via the client application or embedded browser. This user action can trigger the CEB to transmit a connection or access request to a server that provisions the network application. The request can include a request to the server (e.g., SaaS provider) to communicate with the access gateway to authenticate the user. The server can send a request to the access gateway to authenticate the user for example.
In operation (4), the access gateway can perform SSO with the server, to authenticate the user. For example, in response to the server's request to authenticate the user, the access gateway can provide credentials of the user to the server(s) 430 for SSO, to access the selected network application and/or other sanctioned network applications. In operation (5), the user can log into the selected network application, based on the SSO (e.g., using the credentials). The client application (e.g., the networking agent 412 and/or the remote session agent 416) can establish a secure connection and session with the server(s) 430 to access the selected network application. The CEB can decrypt application traffic received via the secure connection. The CEB can monitor traffic sent via the CEB and the secured connection to the servers 430.
In operation (6), the client application can provide information to the analytics services 424 of cloud services 408, for analytics processing. For example, the cloud services agent 414 of the client application 404 can monitor for or capture user interaction events with the selected network application. The cloud services agent 414 can convey the user interaction events to the analytics services 424, to be processed to produce analytics.
For example, in operation (1), the user may log into the network application using the standard browser. For accessing a sanctioned network application, the user may access a predefined URL and/or corresponding webpage of a server that provisions the network application, via the standard browser, to initiate a request to access the network application. In some embodiments, the request can be forwarded to or intercepted by a designated gateway service (e.g., in a data path of the request). For example, the gateway service can reside on the client device (e.g., as an executable program), or can reside on a network device 432 of the cloud services 408 for instance. In some embodiments, the access gateway can correspond to or include the gateway service. The gateway service can determine if the requested network application is a sanctioned network application. The gateway service can determine if a CEB initiated the request. The gateway service can detect or otherwise determine that the request is initiated from a source (e.g., initiated by the standard browser) in the client device other than a CEB. In some embodiments, there is no requirement for a designated gateway service to detect or determine if the request is initiated from a CEB, for example if the requested network application is sanctioned, that user is initiating the request via a standard browser, and/or that the predefined URL and/or corresponding webpage is accessed.
In operation (2), the server may authenticate the user via the access gateway of the cloud services 408. The server may communicate with the access gateway to authenticate the user, in response to the request. For instance, the request can include an indication to the server to communicate with the access gateway to authenticate the user. In some embodiments, the server is pre-configured to communicate with the access gateway to authenticate the user, for requests to access a sanctioned network application. The server may send a request to the access gateway to authenticate the user. In response to the server's request to authenticate the user, the access gateway can provide credentials of the user to the server 430.
In operation (3), the gateway service and/or the server can direct (or redirect) all traffic to a secure browser 420 which provides a secure browsing service. This may be in response to at least one of: a determination that the requested network application is a sanctioned network application, a determination that the request is initiated from a source other than a CEB, a determination that the requested network application is sanctioned, a determination that user is initiating the request via a standard browser, and/or a determination that the predefined URL and/or corresponding webpage is accessed.
The user's URL session can be redirected to the secure browser. For example, the server, gateway service and/or the access gateway can generate and/or send a URL redirect message to the standard browser, responsive to the determination. The secure browser plug-in of the standard browser can receive the URL redirect message, and can for example send a request to access the non-sanctioned network application, to the secure browser 420. The secure browser 420 can direct the request to the server of the non-sanctioned network application. The URL redirect message can instruct the standard browser (and/or the secure browser plug-in) to direct traffic (e.g., destined for the network application) from the standard browser to the secure browser 420 hosted on a network device. This can provide clientless access and control via dynamic routing though a secure browser service. In some embodiments, a redirection of all traffic to the secure browser 420 is initiated or configured, prior to performing authentication of the user (e.g., using SSO) with the server.
In some embodiments, the gateway service can direct or request the server of the requested network application to communicate with the secure browser 420. For example, the gateway service can direct the server and/or the secure browser to establish a secured connection between the server and the secure browser, for establishing an application session for the network application.
In some embodiments, the secured browser 420 comprises a browser that is hosted on a network device 432 of the cloud services 408. The secured browser 420 can include one or more features of the secured browser 420 described above in connection with at least
By using the secure browser plug-in 516 operating within the standard browser 512 network applications accessed via the standard browser 512 can be redirected to a hosted secure browser. For instance, the secure browser plug-in 516 can be implemented and/or designed to detect that a network application is being accessed via the standard browser, and can direct/redirect traffic from the client device associated with the network application, to the hosted secure browser. The hosted secure browser can direct traffic received from the network application, to the secure browser plug-in 516 and/or a client agent 514 for rendering and/or display for example. The client agent 514 can execute within the web browser 512 and/or the secure browser plug-in, and can include certain elements or features of the client application 404 discussed above in connection with at least
By way of an example, a user may be working remotely and may want to access a network application that is internal to a secure corporate network while the user is working on a computing device connected to an unsecure network. In this case, the user may be utilizing the standard browser 512 executing in the first network 510, in which the first network 510 may comprise an unsecure network. The server 430 that the user wants to access may be on the second network 530, in which the second network 530 comprises a secure corporate network for instance. The user might not be able to access the server 430 from the unsecure first network 510 by clicking on an internal uniform record locator (URL) for the secure website 532. That is, the user may need to utilize a different URL (e.g., an external URL) while executing the standard browser 512 from the external unsecure network 510. The external URL may be directed to or may address one or more hosted web browsers 522 configured to access server(s) 430 within the second network 530 (e.g., secure network). To maintain secure access, the secure browser plug-in 516 may redirect an internal URL to an external URL for a hosted secure browser.
The secure browser plug-in 516 may be able to implement network detection in order to identify whether or not to redirect internal URLs to external URLs. The standard browser 512 may receive a request comprising an internal URL for a website executing within the secure network. For example, the standard browser 512 may receive the request in response to a user entering a web address (e.g., for secure website 532) in the standard browser. The secure browser plug-in 516 may redirect the user web browser application 512 from the internal URL to an external URL for a hosted web browser application. For example, the secure browser plug-in 516 may replace the internal URL with an external URL for the hosted web browser application 522 executing within the secure network 530.
The secure browser plug-in 516 may allow the client agent 514 to be connected to the hosted web browser application 522. The client agent 514 may comprise a plug-in component, such as an ActiveX control or Java control or any other type and/or form of executable instructions capable of loading into and executing in the standard browser 512. For example, the client agent 514 may comprise an ActiveX control loaded and run by a standard browser 512, such as in the memory space or context of the user web browser application 512. The client agent 514 may be pre-configured to present the content of the hosted web browser application 522 within the user web browser application 512.
The client agent 514 may connect to a server or the cloud/hosted web browser service 520 using a thin-client or remote-display protocol to present display output generated by the hosted web browser application 522 executing on the service 520. The thin-client or remote-display protocol can be any one of the following non-exhaustive list of protocols: the Independent Computing Architecture (ICA) protocol developed by Citrix Systems, Inc. of Ft. Lauderdale, Fla.; or the Remote Desktop Protocol (RDP) manufactured by the Microsoft Corporation of Redmond, Wash.
The hosted web browser application 522 may navigate to the requested network application in full-screen mode, and can render the requested network application. The client agent 514 may present the content or rendition of the network application on the web browser application 512 in a seamless and transparent manner such that it appears that the content is being displayed by the standard browser 512, e.g., based on the content being displayed in full screen mode. In other words, the user may be given the impression that the website content is displayed by the user web browser application 512 and not by the hosted web browser application 522. The client agent 514 may transmit navigation commands generated by the user web browser application 512 to the hosted web browser application 522 using the thin-client or remote-display protocol. Changes to the display output of the hosted web browser application 522, due to the navigation commands, may be reflected in the user web browser application 512 by the client agent 514, giving the impression to the user that the navigation commands were executed by the user web browser application 512.
Referring again to
In operation (5), the secure browser can feed all user interaction events via the network application, back to analytics service for processing. The secure browser plug-in can monitor for and intercept any user interaction events directed to the rendition of the network application within the browser tab. Hence, a user can use a native (or standard) browser to access a network application while allowing visibility into the network application's traffic, via the interoperation of cloud services and a secure browser (in the absence of the client application).
In operation (1), the user may attempt to log into a non-sanctioned network application using the standard browser. The user may attempt to access a webpage of a server that provisions the network application, and to initiate a request to access the network application. In some embodiments, the request can be forwarded to or intercepted by a designated gateway service (e.g., in a data path of the request). For example, the gateway service (sometimes referred to as SWG) can reside on the client device (e.g., as an executable program), or can reside on a network device 432 of the cloud services 408 for instance. The gateway service can detect or otherwise determine if the requested network application is a sanctioned network application. The gateway service can determine if a CEB initiated the request. The gateway service can detect or otherwise determine that the request is initiated from a source (e.g., initiated by the standard browser) in the client device other than a CEB.
In operation (2), the gateway service detects that the requested network application is a non-sanctioned network application. The gateway service can for instance extract information from the request (e.g., destination address, name of the requested network application), and compare the information against that from a database of sanctioned and/or non-sanctioned network applications. The gateway service can determine, based on the comparison, that the requested network application is a non-sanctioned network application.
In operation (3), responsive to the determination, the gateway service can block access to the requested network application, e.g., by blocking the request. The gateway service can generate and/or send a URL redirect message to the standard browser, responsive to the determination. The URL redirect message can be similar to a URL redirect message sent from the server to the standard browser in
The server of the non-sanctioned network application may authenticate the user via the access gateway of the cloud services 408, e.g., responsive to receiving the request from the secure browser. The server may communicate with the access gateway to authenticate the user, in response to the request. The server may send a request to the access gateway to authenticate the user. In response to the server's request to authenticate the user, the access gateway can provide credentials of the user to the server 430. Upon authentication, the secure browser (or a corresponding CEB) can establish a secured connection and an application session with the server.
In operation (4), a new browser tab can open on the standard browser, to render or display the secure browser's application session. The new browser tab can be established or opened by the secure browser plug-in for instance. The secure browser plug-in and/or a client agent can receive data from the secure browser session, and can render the network application within the new browser tab as discussed above in connection with
In operation (5), the secure browser can feed all user interaction events via the network application, back to analytics service for processing. The secure browser plug-in can monitor for and intercept any user interaction events directed to the rendition of the network application within the browser tab. Hence, a user can use a native (or standard) browser to access a network application while allowing visibility into the network application's traffic, via the interoperation of cloud services and a secure browser (in the absence of the client application).
In some embodiments, in the absence or non-availability of a CEB on the client device, browser redirection is performed so that each requested network application is accessed via a corresponding hosted secure browser (or hosted CEB) for handling, instead of having all traffic redirected through a single hosted secure browser (or hosted CEB). Each dedicated secure browser can provide compartmentalization and improved security.
The use of a CEB, whether hosted or local to the client device, can allow for end-to-end visibility of application traffic for analytics, service level agreement (SLA), resource utilization, audit, and so on. In addition to such visibility, the CEB can be configured with policies for managing and controlling any of these as well as other aspects. For example, DLP features can be supported, to control “copy and paste” activities, download of files, sharing of files, and to implement watermarking for instance. As another example, the CEB can be configured with policies for managing and controlling access to local drives and/or device resources such as peripherals.
Referring now to
If the gateway service determines that the HTTP client is not a CEB, the gateway service can cause a virtualized version of a CEB to be initialized and hosted on a remote server (e.g., a network device 432 of cloud services 408), in operation 907. In some embodiments, such a hosted CEB may already be available on a network device 432, and can be selected for use. For example in operation 911, the CEB is allowed access to the web service, and can enforce the defined policies.
If the gateway service determines that the HTTP client is a CEB, but that the CEB is not a suitable CEB, the gateway service can cause a virtualized version of a CEB to be initialized and hosted on a remote server (e.g., a network device 432 of cloud services 408), in operation 907. In some embodiments, such a hosted CEB may already be available on a network device 432, and can be selected for use. For example in operation 911, the CEB is allowed access to the web service, and can enforce the defined policies.
In some embodiments, if the user is requesting access to a web application located in a company data center, the gateway service (in cloud service or on premise) can allow access when the client application with CEB is detected. Otherwise, the request can be routed to a service with the hosted virtualized version of the CEB, and then access is authenticated and granted.
At operation 905 and/or operation 909 for instance, the decisions made on whether the HTTP client is a CEB and whether it is a suitable CEB may be determined by a number of factors. For example, to determine if the HTTP client is CEB, the gateway service may take into account factors, for example including at least one of: user Identity and strength of authentication, client Location, client IP Address, how trusted the user identity, client location, client IP are, jailbreak status of the client device, status of anti-malware software, compliance to corporate policy of the client device, and/or remote attestation or other evidence of integrity of the client software.
To determine if the CEB is able to honor or support all defined application policies (which may vary by client version, client OS platform and other factors), the client device's software and gateway service may perform capability negotiation and/or exchange version information. In some embodiments, the gateway service can query or check a version number or identifier of the CEB to determine if the CEB is a suitable CEB to use.
Driving all the traffic though the CEB then allows additional control of content accessing SaaS and Web based systems. Data Loss Prevention (DLP) of SaaS and Web traffic can be applied through the CEB app with features including copy and paste control to other CEB access applications or IT managed devices. DLP can also be enforced by enabling content to be downloaded only to designated file servers or services under IT control.
Referring now to
C. Systems and Methods for Using a Transparent Window to Augment an Application
In some instances, it may be desirable to allow users to use network applications without using a client application (e.g. using a standard or native web browser). For example, a user may be working remotely and may want to access a network application that is internal to a secure corporate network while the user is working on a computing device connected to an unsecure network. However, the content displayed in a network application may appear encoded, especially when the data has been previously tokenized.
The present disclosure addresses the technical problems described above. The present disclosure is directed towards systems and methods for using a transparent window to augment network application content displayed via a standard web browser. A client application executing on a client device or a transparent window manager of the client application can be configured to provide a transparent window to provide additional information or content related to content of a network application that is accessed by an underlying window of browser executing on the client device. The client application can be configured to resize the transparent window to match dimensions of an underlying window displaying the network application. The client application can be configured to place the transparent window over the underlying window. Furthermore, the client application can be configured to track changes in the size, position and visibility of the underlying window and synchronize the transparent window to the changes. The client application can be configured to detect encoded or tokenized fields of content in the underlying window, and may replace the encoded or tokenized fields with clear text decoded information in the transparent window. The decoded information may be presented in the transparent window. The client application can be configured to pass mouse and keyboard input to the network application displayed in the underlying window via the transparent window. The client application may encode the keyboard input. The client application may authenticate a user to enable decoding of content in the underlying window. Decoding may be governed by enterprise policy, including risk based analytics policy that may govern the user's access in the context of the device, location, behavior, and history.
The transparent window can potentially provide additional augmentation to the underlying window displaying network application content. For example, the underlying window may display customer information. By overlaying the underlying window with the transparent window, the client application may show additional information related to the customer such as outstanding customer feature requests. The additional information may be retrieved from a second device or server, such as a server that provides the client application or a server of the enterprise to which the user belongs.
In one aspect, this disclosure is directed to a method for using a transparent window to augment an application. The method includes establishing a transparent window to be displayed in synchronization over a first window of an application on a client device. The content of the application in the first window is viewable through the transparent window. The method further includes detecting, by the transparent window, one or more encoded portions of content of the application being displayed in the first window, and displaying, by and in the transparent window, a decoded form of the one or more encoded portions of the content of the application displayed in the first window.
Referring now to
The application server 1104 is similar to the server 430 described with respect to
Each of the elements or entities of the system 1100 is implemented in hardware, or a combination of hardware and software, in one or more embodiments. Each component of the system 1100 may be implemented using hardware or a combination of hardware or software detailed above in connection with
The client application 1110 may include the transparent window manager 1114. The transparent window manager 1114 may be configured to manage a transparent window for augmenting content of the network application 1106 displayed in a first window. The transparent window manager 1114, and the blocks therein, may augment the network application 1106 content responsive to the transparent window being placed on top of the first window. The transparent window manager 1114, and the blocks therein, may augment the content of the network application 1106 by decoding the content or supplying additional content. The first window may include one of the web browser 1112 or a native application accessing the network application 1106 on one or more servers (e.g. the application server 1104).
In some embodiments, transparent window manager 1114 opens or launches the transparent window in response to detecting that the web browser 1112 has established a session with the network application 1106. In some embodiments, responsive to receiving an indication of a hotkey being pressed, the transparent window manager 1114 opens the transparent window. In some embodiments, the transparent window manager 1114 opens the transparent window in response to detecting that a user of the client application 1110 has been pre-authenticated for the network application 1106 being accessed by the web browser 1112. A list of the network applications may be located locally, on an access gateway (e.g. access gateway 422), or in a secure container (e.g. secure container 418) to which the transparent window manager 1114 has been assigned or bound. In some embodiments, transparent window manager 1114 is configured to detect that the web browser 1112 is accessing the content of the network application 1106 for which the user of the client application 1110 has been authenticated. The transparent window manager 1114 can determine that a session is established between the web browser 1112 and the network application 1106. The transparent window manager 1114 can determine an identifier of the network application 1106 that has established a session with the web browser 1112. The transparent window manager 1114 can obtain the list of network applications. Responsive to determining that the identifier of the network application 1106 matches an identifier of one of the network applications on the list of network applications, the transparent window manager 1114 may determine that the web browser 1112 is accessing the content of the network application 1106 for which the user of the client application 1110 has been authenticated.
In some embodiments, the transparent window manager 1114 closes the transparent window in response to a user input or a system input. The user input may be a hotkey. In some embodiments, responsive to receiving an indication of the hotkey being pressed, the transparent window manager 1114 closes the transparent window. In some embodiments, the transparent window manager 1114 closes the transparent window in response to detecting that the session established between the web browser 1112 and the network application 1106 has ended. The transparent window manager 1114 may be configured to pass one of a pointer or a keyboard input to the web browser 1112. The transparent window manager 1114 may be configured to encode the keyboard input.
The transparent window manager 1114 may include the window synchronizer 1116. Responsive to the transparent window manager 1114 opening the transparent window, the window synchronizer 1116 may be configured to detect properties of the web browser 1112 displaying the network application 1106 content. In some embodiments, the window synchronizer 1116 is configured to detect the properties of the web browser 1112 at a point after the transparent window manager 1114 detects that the web browser 1112 has accessed the network application 1106 and prior to the transparent window manager 1114 opening the network application 1106. The properties may include size, position, and/or visibility, wherein properties of the web browser 1112 are referred to hereinafter as the “first properties” and properties of the transparent window are referred to hereinafter as “second properties.”
The window synchronizer 1116 may be configured to display the transparent window in synchronization over the web browser 1112. In some embodiments, displaying transparent window in synchronization over the web browser 1112 of the network application 1106 includes the window synchronizer 1116 placing or moving the transparent window over the web browser 1112 such that some or all of the second properties of the transparent window may be same as the first properties of the web browser 1112. As described herein, a size of a window may be represented by a width and height. As described herein, a position of a window may be represented by x-y coordinates of edges of the window. As described herein, the visibility of a window may be characterized as visible or not visible. This may depend on whether another window is obstructing a view of the window.
The window synchronizer 1116 may be configured to track or detect changes in the first properties of the web browser 1112. The window synchronizer 1116 may be configured to synchronize the transparent window with the web browser 1112 by adjusting the second properties of the transparent window in response to detecting changes in the first properties of the web browser 1112. In some embodiments, the first properties and the second properties are stored in a memory (e.g. a cache associated with the window synchronizer 1116). The window synchronizer 1116 may be configured to retrieve the first properties of the web browser 1112 from the memory. In some embodiments, the window synchronizer 1116 receives a bitmap representing displayed content on the client device 1102 (e.g. from a frame buffer or a video buffer). The window synchronizer 1116 may be configured to determine the first properties of the web browser 1112 based on the bitmap. For example, the window synchronizer 1116 applies pattern recognition techniques on the bitmap to identify the location, the boundaries, and the size of the window synchronizer 1116. The window synchronizer 1116 may determine the second properties of the transparent window in a similar fashion. The window synchronizer 1116 may determine the first properties and the second properties at a pre-determined interval and compare the first properties and the second properties upon each determination. The window synchronizer 1116 may change the second properties to match the first properties in response to determining that the first properties and the second properties do not match. In some embodiments, the window synchronizer 1116 receives an alert when the first properties of the web browser 1112 have changed. The alert may be triggered by detecting a write to the address of the memory where the first properties are stored. In response to receiving the alert, the window synchronizer 1116 may determine the first properties of the web browser 1112 and change the second properties of the transparent window to match the first properties.
The transparent window manager 1114 may include the encoded content detector 1118. The encoded content detector 1118 may be configured to detect one or more encoded portions of content of the network application 1106 being displayed in the web browser 1112. Detecting the one or more encoded portions may include receiving a bitmap of the displayed content from a buffer in memory. The encoded content detector 1118 may detect the encoded portions by using optical character recognition (OCR) to identify portions of text. The portions of text may be separated based on locations on the bitmap. Each identified portion of text may be parsed into space delimited groups of characters. Each group of character may be searched in a locally stored or online dictionary. Responsive to not matching a threshold number of the groups of characters in a first portion of text to an entry in the dictionary, the encoded content detector 1118 may determine that the first portion of text is encoded.
The encoded content detector 1118 may detect the one or more encoded portions by reading metadata identifying the one or more encoded portions. The metadata may be associated with the network application 1106. The metadata may be stored in the secure container bound to or assigned to the transparent window manager 1114. The encoded content detector 1118 may detect the one or more encoded portions by identifying and reading a digital watermark displayed in the web browser 1112. The digital watermark may be embedded in the content of the network application 1106 and hidden from plain view but detectable by the encoded content detector 1118.
The one or more encoded portions of content may include encrypted fields. The application server 1104 may use an encryption key and an algorithm to generate encrypted fields by encoding (e.g. encrypting) one or more portions of the network application 1106 content to be displayed in the web browser 1112. The encryption may be standard decryption or advanced standard decryption (e.g. AES-256). The encryption may be an SSL encryption. The encryption may be an asymmetric encryption using a public key and a private key. The asymmetric key encryption may be used to validate identity of the user of the client device 1102 using SSL certificates, which are described with respect to
The one or more encoded portions of content may include tokenized fields. The application server 1104 may generate the tokenized fields by encoding (e.g. tokenizing) one or more portions of the network application 1106 content displayed in the web browser 1112. The tokenized fields may serve as a reference to the one or more portions. The application server 1104 may create a database mapping the one or more portions to the tokenized fields. The database may be secured via encryption as described herein. In some embodiments, detecting the one or more encoded portions of content of the network application 1106 being displayed in the web browser 1112 includes the encoded content detector 1118 decoding the tokenized fields by mapping the tokenized fields to the one or more portions associated with the tokenized fields. The application server 1104 may send the database that maps the one or more portions to the tokenized fields to the secure container or the transparent window manager 1114. The encoded content detector 1118 can access the database and find the one or more portions at indices in the database corresponding to the tokenized fields. In some embodiments, the encoded content detector 1118 can decrypt the database prior as described herein.
The transparent window manager 1114 may include the incomplete content detector 1120. The incomplete content detector 1120 may be configured to detect one or more portions of incomplete content of the network application 1106 being displayed in the web browser 1112 to be augmented with additional content. The additional content may be in association with the portion of incomplete content. In some embodiments, the incomplete content detector 1120 may detect the one or more portions of incomplete content by reading metadata associated with the network application 1106. Detection of the one or more portions of incomplete content may include reading a watermark. The metadata and/or watermark may identify the one or more portions of incomplete content. In some embodiments, detecting the one or more portions of incomplete content includes the incomplete content detector 1120 detecting a first content type that is displayed in the web browser 1112 (e.g. customer identifiers). The content type may be associated with the additional content including a second content type that is not displayed in the web browser 1112 (e.g. outstanding customer requests). What constitutes the first content type may be determined by one of the policies 1130.
In some embodiments, detecting the one or more portions of incomplete content of the network application 1106 being displayed in the web browser 1112 to be augmented with additional content includes obtaining, using the one or more portions of incomplete data, the additional content associated with the content. The incomplete content detector 1120 may obtain the additional content from a second device. The second device may be the application server 1104, a separate application server similar to the application server 1104, a network device (e.g. the network device 432), or a separate client device similar to the client device 1102. The additional content may be encoded. The incomplete content detector 1120 may send the encoded additional content to the encoded content detector 1118 to be decoded. Obtaining the additional content may include mapping the one or more portions of incomplete content to the additional content. The mapping may be stored in a lookup table (LUT). The incomplete content detector 1120 may find the additional content at an index in the LUT associated with the incomplete portion of content. The LUT may map each of the one or more portions of incomplete content to a pointer. The pointer may point to an address location in the second device. In some embodiments, the incomplete content detector 1120 does not know which portions of content are incomplete portions of content a priori looking them up in the LUT. Responsive to finding a first portion in the LUT, the incomplete content detector 1120 may identify the first portion as the incomplete portion of content.
The determination of whether to decode the one or more encoded portions and/or whether to obtain additional content corresponding to the one or more portions of incomplete content may be governed by a policy of the policies 1130. The transparent window manager 1114 may apply the policy responsive to the policy being provided by or selected by the policy manager 1128. The policy may be a risk based analytics policy that governs the user's access to the decoded form of content (or the additional content) in the context of the user, the client device 1102, a location, a behavior of the user, a history, security level of a connection between the transparent window manager 1114 and the application server 1104, or the like. The location may be detected by identifying a location of one or more local networks (e.g. WiFi or Bluetooth) being used by the client device 1102 or attempting connection with the client device 1102. The one or more local networks or other technologies (e.g. radio, ultrasonic signals, optical signals, laser signals) can range with the client device 1102 or act as beacon signals indicating the proximity or location of the client device 1102. The location may be detected by triangulation via a global positioning system (GPS). The user may be determined by facial recognition, voice recognition, or metadata. A webcam attached to the client device 1102 may perform facial recognition on the user to determine the identity of the user. A microphone attached to the client device 1102 can perform voice recognition to identify the user. Cookies or other metadata stored on a web browser or other application in the client device 1102 can identify the user.
The enterprise server 1126 may include the user authenticator 1122. In some embodiments, the user authenticator 1122 may be included in the transparent window manager 1114. The user authenticator 1122 may be configured to authenticate the user of the client device 1102. The authentication may be responsive to the encoded content detector 1118 decoding the one or more encoded portions or the incomplete content detector 1120 detecting the one or more portions of incomplete data. In some embodiments, authenticating includes the user authenticator 1122 sending to the application server 1104 personal credentials of the user. The transmitted personal credentials may be compared at the application server 1104 or the client device 1102 with remote personal credentials of the user. Responsive to the transmitted personal credentials and the remote personal credentials matching, the user authenticator 1122 may receive an indication of authentication from the application server 1104 (or the client device 1102 in the case that the user authenticator is executing on the enterprise server). In some embodiments, authenticating includes receiving, at the user authenticator 1122, personal credentials from the application server 1104 (or the client device 1102 in the case that the user authenticator is executing on the enterprise server), comparing the received personal credentials to locally stored personal credentials, and validating authentication responsive to determining that the personal credentials from the application server 1104 (or the client device 1102 in the case that the user authenticator is executing on the enterprise server) match the locally stored personal credentials. Alternatively or additionally, the authentication process may use a token corresponding to the personal credentials. The user authenticator 1122 may be configured to authenticate the user at a pre-determined interval.
The transparent window manager 1114 may include the private content displayer 1124. The private content displayer 1124 may be configured to display, in the transparent window, a decoded form of the one or more encoded portions of content of the network application 1106 displayed in the web browser 1112. The private content displayer 1124 may receive one or more locations (e.g. x-y coordinates of the transparent window) for displaying the decoded form of the one or more encoded portions of content. The a private content displayer 1124 may be configured to display the decoded form of the encoded portions of content in response to the user authenticator 1122 authenticating the user of the client device 1102 to view in the transparent window the decoded form of the one or more encoded portions of content. The private content displayer 1124 may be configured to display, in the transparent window, the additional content in association with the portion of incomplete content of the network application 1106 displayed in the web browser 1112. The determination of whether to display, in the transparent window, the decoded form of the one or more encoded portions of content may be governed by a policy of the policies 1130. The policy may be similar to the policy governing whether to decode one or more encoded portions of content.
Referring now to
At operation 1202, the transparent window manager, such as the transparent window manager 1114, may receive indication to open a transparent window. In some embodiments, the indication includes an indication of a keyboard or mouse selection. In some embodiments, the indication includes establishing a session between the web browser and a network application, such as the network application 1106. In some embodiments, the indication includes an indication that a first window (e.g. the web browser) is displaying the network application. In some embodiments, the transparent window manager opens the transparent window in response to receiving indication to open the transparent window.
At operation 1204, the transparent window manager may synchronize the transparent window with an underlying first window of the network application. In some embodiments, synchronizing includes detecting first properties (e.g. size and location) of the first window and setting corresponding second properties of the transparent window to be same in value as the first properties of the first window. The transparent window manager may track the first properties of the first window and change the second properties of the transparent window in response to detecting that the first properties of the first window have changed. In some embodiments, transparent window manager may track the first properties at a predetermined time interval. In some embodiments, the transparent window manager may receive an alert when the first properties of the web browser, such as the web browser 1112, have changed. The alert may be triggered by detecting a write to the address of the memory where the first properties are stored. The first window may be a web browser displaying the content of the network application.
At operation 1206, the transparent window manager may determine that there is an encoded portion of content displayed in the first window. The transparent window manager may use OCR to detect garbled text. The transparent window manager may determine that the text is garbled by comparing it to entries in a dictionary and determining there is no match. The entries may be in alphabetical order or some other predetermined order, and the transparent window manager may have knowledge of the order to efficiently locate the entry that may match the text.
At operation 1208, the transparent window manager may decode the encoded portion of content. The transparent window manager may use an encryption key and an algorithm to decode the one or more encoded portions of content. The transparent window manager may receive the encryption key and/or the algorithm (or knowledge of the algorithm to be used) from the application server, such as the application server 1104. The encryption key and/or the algorithm may be stored in a secure container that is assigned to the transparent window manager. Responsive to determining that there is not the one or more encoded portions of content displayed in the first window, the method 1200 may return to the operation 1204.
At operation 1210, the transparent window manager may determine whether there are additional encoded portions of content. In some embodiments, there may be entries corresponding to the encoded portions of content. In some embodiments, determining whether there are additional encoded portions of content may include the transparent window manager may determining if there is a valid next entry. If the next entry is a null entry, an end-of-file marker, or if the next entry is beyond an endpoint of a data file, then the next entry may not be a valid next entry. In some embodiments, the transparent window manager may maintain a counter of entries and compare the counter to a total number of entries. Responsive to determining that a valid next entry exists, then operation 1208 may be repeated iteratively. Although this process describes serial determination, in some embodiments, the transparent window manager determines multiple encoded portions simultaneously in parallel. Responsive to there being additional encoded portions of content, return to the operation 1208.
Responsive to there not being any additional encoded portions of content, at operation 1212, the transparent window manager may display, in the transparent window, the decoded form of the one or more encoded portions of content in the first window. In some embodiments, displaying the decoded form of the one or more encoded portions of content is responsive to determining a context of the user, the client device, such as the client device 1102, a location, a behavior, a history, or a connection security level is in accordance with governing policy. The policy may be a risk based analytics policy that governs the user's access to the decoded form of content. In some embodiments, the transparent window manager displays the decoded form of the encoded portions of content in response to the user authenticator 1122 authenticating the user of the client device to view the decoded form of the one or more encoded portions of content. In some embodiments, the transparent window can include the transparent window as well as be configured to provide functionality of the transparent window manager.
Referring now to
At operation 1302, the transparent window manager may receive indication to open a transparent window. In some embodiments, the indication includes an indication of a keyboard or mouse selection. The transparent window manager can determine that a session is established between the web browser and the network application. In some embodiments, the indication includes establishing a session between the web browser and the network application. In some embodiments, operation 1302 is similar to operation 1202.
At operation 1304, the transparent window manager may establish the transparent window to be displayed in synchronization over the first window of the network application. In some embodiments, displaying in synchronization includes matching a first size and location of the transparent window to a second size and location of the first window displaying the network application. In some embodiments, synchronizing the transparent window to the first window occurs at a point before the network application is rendered on the first window. In some embodiments, the operation 1304 is similar to the operation 1204 with respect to
At operation 1306, the transparent window manager may determine that there is, in a first window, a portion of incomplete content in association with additional content. In some embodiments, cookies and/or other metadata stored in memory associated with the web browser indicate that there are portions of incomplete content. In some embodiments, a watermark displayed in the web browser, when decrypted, may indicate that there are portions of incomplete content. In some embodiments, by detecting a content type, the transparent window manager can determine whether there is additional content corresponding to the content type. Whether a content type has the corresponding additional content may be based on policy.
At operation 1308, the transparent window manager may obtain the additional content. In some embodiments, obtaining the additional content includes mapping the one or more portions of incomplete content to the additional content. The transparent window manager may find the additional content at an LUT index associated with the incomplete portion of content. In some embodiments, the transparent window manager finds a pointer at the LUT index associated with the incomplete portion of content. The pointer may point to a memory address location at a second device. The memory address may include the starting value for a block of data corresponding to the additional content associated with the portion of incomplete content.
At operation 1310, the transparent window manager may display, in the transparent window, the additional content in association with the portion of incomplete content. In some embodiments, responsive to obtaining the additional content, the incomplete content may become a link of a URL to the additional content. Responsive to a mouse or keyboard input selecting the link, the additional content may be received from the network application and displayed on the web browser.
It should be understood that the systems described above may provide multiple ones of any or each of those components and these components may be provided on either a standalone machine or, in some embodiments, on multiple machines in a distributed system. The systems and methods described above may be implemented as a method, apparatus or article of manufacture using programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof. In addition, the systems and methods described above may be provided as one or more computer-readable programs embodied on or in one or more articles of manufacture. The term “article of manufacture” as used herein is intended to encompass code or logic accessible from and embedded in one or more computer-readable devices, firmware, programmable logic, memory devices (e.g., EEPROMs, ROMs, PROMs, RAMs, SRAMs, etc.), hardware (e.g., integrated circuit chip, Field Programmable Gate Array (FPGA), Application Specific Integrated Circuit (ASIC), etc.), electronic devices, a computer readable non-volatile storage unit (e.g., CD-ROM, USB Flash memory, hard disk drive, etc.). The article of manufacture may be accessible from a file server providing access to the computer-readable programs via a network transmission line, wireless transmission media, signals propagating through space, radio waves, infrared signals, etc. The article of manufacture may be a flash memory card or a magnetic tape. The article of manufacture includes hardware logic as well as software or programmable code embedded in a computer readable medium that is executed by a processor. In general, the computer-readable programs may be implemented in any programming language, such as LISP, PERL, C, C++, C#, PROLOG, or in any byte code language such as JAVA. The software programs may be stored on or in one or more articles of manufacture as object code.
While various embodiments of the methods and systems have been described, these embodiments are illustrative and in no way limit the scope of the described methods or systems. Those having skill in the relevant art can effect changes to form and details of the described methods and systems without departing from the broadest scope of the described methods and systems. Thus, the scope of the methods and systems described herein should not be limited by any of the illustrative embodiments and should be defined in accordance with the accompanying claims and their equivalents.
| Number | Name | Date | Kind |
|---|---|---|---|
| 5801697 | Parikh et al. | Sep 1998 | A |
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