Patent Application
20160366108
The present invention relates to network and system protection, and more particularly, this invention relates to using an embedded security header as part of a payload of a packet.
Applications are made up of a large number of instructions and data. Instructions operate on data which is fetched in a cache and memory and is always unencrypted. Scaled out, distributed applications are made up of a large number of application instances. These application instances have their own data in the cache and memory of the processor on which these applications run. A large number of such application instances communicate with each other and process data in parallel to create an aggregate output.
These types of scaled-out applications are extremely vulnerable to application breaches, data thefts from cache and memory by scraping, and other methods of illicitly obtaining data from the applications, cache, and/or memory. In data centers which cater to important applications and data types, such as Personally Identifiable Information (PII), Payment Card Industry (PCI) data, medical information that falls under Health Insurance Portability and Accountability Act (HIPAA), military and Government critical tasks, any application and/or data breach is very destructive and expensive to contain and/or resolve. Therefore, it is beneficial to attempt to prevent such breaches.
In one embodiment, a method includes generating a multi-context application and data protection layer (ADPL) tag unique to a pair of data socket descriptors on which data is to be received and/or transmitted by a first application instance operating on a first host and a second application instance operating on a second host. The method also includes embedding the ADPL tag as part of an application payload in response to the first application instance calling an application programming interface (API) configured to transmit the application payload out from the first host via a sender data socket descriptor.
According to another embodiment, a system includes a processing circuit and logic integrated with and/or executable by the processing circuit. The logic is configured to cause the processing circuit to generate a multi-context ADPL tag unique to a pair of data socket descriptors on which data is to be received and/or transmitted by a first application instance operating on the system and a second application instance operating on a second host. The logic is also configured to cause the processing circuit to embed the ADPL tag as part of an application payload in response to the first application instance calling an API configured to transmit the application payload out from the system via a sender data socket descriptor.
In yet another embodiment, a computer program product includes a computer readable storage medium having program instructions stored thereon. The program instructions are executable by a processing circuit to cause the processing circuit to generate a multi-context ADPL tag unique to a pair of data socket descriptors on which data is to be received and/or transmitted by a first application instance operating on a first host and a second application instance operating on a second host. The program instructions are also executable by the processing circuit to cause the processing circuit to embed the ADPL tag as part of an application payload in response to the first application instance calling an API configured to transmit the application payload out from the first host via a sender data socket descriptor.
The embodiments described above may be implemented in any computing system environment known in the art, such as a networking environment, which may include a processor and a computer readable storage medium configured to store data and logic, the logic being implemented with and/or executable by the processor to cause the processor to perform one or more functions.
The following descriptions of the drawings are not meant to be limiting on what is taught by the drawings in any manner. For a fuller understanding of the content of each drawing, the following brief descriptions are provided, which when read in conjunction with the detailed description, describe the full breadth of the various embodiments of the present invention.
The descriptions presented herein are intended to enable any person skilled in the art to make and use the present invention and are provided in the context and requirements of particular applications of the present invention.
Unless otherwise specifically defined herein, all terms are to be given their broadest possible interpretation including meanings implied from the specification as well as meanings understood by those skilled in the art and/or as defined in dictionaries, treatises, etc. It must also be noted that, as used in the specification and the appended claims, the singular forms “a,” “an,” arid “the” include plural referents unless otherwise specified.
Moreover, the term “about” when used herein to modify a value indicates a range that includes the value and less and greater than the value within a reasonable range. In the absence of any other indication, this reasonable range is plus and minus 10% of the value. For example, “about 10 milliseconds” indicates 10 ms±1 ms, such that the range includes all values in a range including 9 ms up to and including 11 ms.
Also, the term “comprise” indicates an inclusive list of those elements specifically described without exclusion of any other elements. For example, “a list comprises red and green” indicates that the list includes, but is not limited to, red and green. Therefore, the list may also include other colors not specifically described.
Various modifications to the disclosed embodiments will he readily apparent to those skilled in the art and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown and described herein, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
In particular, various embodiments of the invention discussed herein may be implemented using a network, such as the Internet, to communicate among a plurality of computer systems. One skilled in the art will recognize that the present invention is not limited to the use of the Internet as a communication medium and that alternative methods of the invention may accommodate the use of a private intranet, a Local Area Network (LAN), a Wide Area Network (WAN), or other communication media. In addition, various combinations of wired (e.g., Ethernet), wireless (e.g., radio frequency) and optical communication links (e.g., fiber optic) may be utilized.
The term application as used herein refers to any type of software and/or hardware-based application, such as enterprise data center applications, Internet-of-Things (IOT) applications, Industrial control applications, military applications, etc.
Enterprise data center applications may include any of the following application types: financial applications, equity trading applications, healthcare applications, financial transaction applications, etc.
IOT applications may include any of the following application types: mobile communication applications, home automation/control applications, industrial automation/control applications, security and monitoring applications, etc.
Industrial control applications may include any of the following application types: nuclear power plant control, thermal power plant control, hydro-electric power plant control, wind farm control, electricity grid and distribution control, water treatment control, land-based traffic control, air traffic control, etc.
Military applications may include any of the following application types: military installation control, first alert system control, autoguided weapon system control, military weaponized equipment control including manned vehicles, weaponized and/or surveillance-oriented unmanned vehicle control (drones) such as unmanned aerial vehicles (UAVs), unmanned aircraft systems (UASs), unmanned underwater vehicles (UUVs), unmanned ground vehicles (UGVs), etc.
A program environment in which one embodiment may be executed illustratively incorporates one or more general-purpose computers and/or special-purpose devices, such as switches, routers, switch controllers, etc. Details of such devices (e.g., processor, memory, data storage, input devices, and output devices) are well known and are omitted for the sake of clarity.
It should also be understood that the techniques of the present invention may be implemented using a variety of technologies. For example, the methods described herein may he implemented in software running on a computer system, implemented in hardware utilizing one or more hardware processors and logic (hardware logic and/or software logic) implemented with and/or executable by the hardware processor. The logic is configured to cause the processor to perform operations of a method, and may take any form known to those of skill in the art, such as application specific integrated circuits (ASICs), programmable logic devices such as Field Programmable Gate Arrays (FPGAs), and/or various combinations thereof.
In one illustrative approach, methods described herein may be implemented by a series of computer-executable instructions stored to a computer readable storage medium, such as a physical (e.g., non-transitory) data storage medium. In addition, although specific embodiments may employ object-oriented software programming concepts, the present invention is not so limited and is adaptable to employ other forms of directing the operation of a processor.
The present invention may also be provided in the form of a computer program product comprising a computer readable storage medium having program instructions thereon or a computer readable signal medium having program instructions therein, which may be executed by a computing device (e.g., a processor) and/or a system. A computer readable storage medium may include any medium capable of storing program instructions thereon for use by a computing device or system, including optical media such as read only and writeable CDs and DVDs, magnetic memory or media (e.g., hard disk drive, magnetic tape, etc.), semiconductor memory (e.g., FLASH memory, non-volatile random access memory (NVRAM), and other non-volatile storage media known. in the art), firmware encoded in a microprocessor, etc.
A computer readable signal medium is one that does not fit within the aforementioned computer readable storage medium definitions. For example, illustrative computer readable signal media communicate or otherwise transfer transitory signals within a system, between systems, etc., e.g., via a physical or virtual network having a plurally of connections.
As shown in
In use, the gateway 102 serves as an entrance point from the remote networks 104, 106 to the proximate network 108. As such, the gateway 102 may function as a router, which is capable of directing a given packet of data that arrives at the gateway 102, and a switch, which furnishes the actual path in and out of the gateway 102 for a given packet.
Further included in the network architecture 106 is at least one data server 114 coupled to the proximate network 108, and which is accessible from the remote networks 104, 106 via the gateway 102. It should be noted that the data server(s) 114 may include any type of computing device/groupware. Coupled to each data server 114 is a plurality of user devices 116. User devices 116 may include any device known by those of skill in the art, such as a desktop computer, a laptop computer, a hand-held computer, a smartphone, a terminal, a port, a printer, some type or form of logic, etc. It should he noted that a user device 122 may also be directly coupled to any of the networks, in one embodiment.
A peripheral 120 or series of peripherals 120, e.g., facsimile machines, printers, networked storage units, hard disk drives, wireless routers, etc., may be coupled to one or more of the networks 104, 106, 108, 110, 112. It should be noted that databases, servers, mainframes, and/or additional components may be utilized with and/or integrated into any type of network element coupled to the networks 104, 106, 108, 110, 112. In the context of the present descriptions, a network element may refer to any component of a network, system,device, and/or any device useable in a network.
According to some approaches, methods arid systems described herein may be implemented with and/or utilized on virtual systems and/or systems which emulate one or more other systems, such as a UNIX system which emulates a MAC OS environment, a UNIX system which virtually hosts a MICROSOFT WINDOWS environment, a MICROSOFT WINDOWS system which emulates a MAC OS environment, etc. This virtualization and/or emulation may be enhanced through the use of virtualization software, such as VMWARE ESX, MICROSOFT HYPER-V, SIMICS, etc., in some embodiments,
In more approaches, one or more of the networks 104, 106, 108, 110, 112 may represent a cluster of systems commonly referred to as a “cloud.” In cloud computing, shared resources, such as processing power, peripherals, software, data processing, servers, storage, etc., are provided to any system that has access to the cloud and permission to access the specific resource, preferably in an on-demand relationship, thereby allowing access and distribution of services across many computing systems. Cloud computing typically involves an Internet or other high speed connection (e.g., 4 G LTE, fiber optic, etc.) between the systems operating in the cloud, but other techniques of connecting the systems may also be used as would be understood by those of skill in the art.
The workstation 200 shown in
The workstation 200 may have resident thereon an operating system, such as the MICROSOFT WINDOWS Operating System (OS), a MAC OS, a UNIX OS, etc. It will be appreciated that a preferred embodiment may also be implemented on platforms and operating systems other than those specifically mentioned herein. A preferred embodiment may be written using JAVA, XML, C, and/or C++ language, SCALA, COBOL, FORTRAN, or other programming languages, along with an object oriented programming methodology or scripting language such as PERL, PYTHON, Tcl/Tk, or other scripting languages. Object oriented programming (OOP), which has become increasingly used to develop complex applications, may also be used.
Moreover, one or more hardware processors may be implemented in a processing circuit in the workstation 200. The processing circuit includes the one or more hardware processors, along with any connections or links therebetween necessary to interconnect the one or more processors in the processing circuit. In addition, the processing circuit may be implemented with logic and/or may be configured to execute logic, with the logic being configured to cause the processing circuit to perform functionality specified by the logic.
Now referring to
As shown in
In order to provide application and data protection to application instances of distributed, scaled out applications which have instances operating on a plurality of computing systems, at least two operations may be performed, and are described below according to one embodiment.
In a first operation, application instances, such as application instance 306, are identified based upon data socket descriptor attributes that an application instance uses to communicate between other application instances and/or group(s) of application instances on/or outside of the computing system 300. For example, in response to application instance 306 utilizing data socket descriptor #0312 consistently to communicate with another system, an association may he established between data socket descriptor #0312 and the application instance 306. By consistently, what is meant is that application instance 306 utilizes data socket descriptor #0312 to communicate with another system more than a predetermined number of times within a given period of time, according to one embodiment. In another embodiment, consistently utilizing a data socket descriptor means that only a specific data socket descriptor is used in exclusion of all others over a given period of time.
In a second operation, a group is formed which includes any application instance which has all of the same socket descriptor attributes (or at least a predetermined amount of the same socket descriptor attributes, or the same of a certain group of socket descriptor attributes), e.g., data exchange sockets of the same application base socket, transport protocol, server port, various multi-tenancy characteristics, storage characteristics, payload sizes, container attributes, and/or multiple time contexts are grouped together.
Any socket descriptor attributes may be considered when determining whether an application instance shares data socket descriptor attributes with another application instance, such as OS and container attributes which include server port, transport protocol, network address translation (NAT) IP address range, maximum transmission unit (MTU), application payload sizes, user programmable attributes such as multi-tenancy labels etc.
Using the above two operations, two layers of protection (application protection arid data protection) are enacted together to protect the application (not shown) from which the application instance 306 is provided and any group of application instances related to the application that provides the application instance 306.
The data socket descriptors 312, 314, 316, . . . , 318 are numbers that represent attributes and/or characteristics of different data exchanges between the application instance and one or more receiver hosts. Each data socket descriptors 312, 314, 316, . . . , 318 may have a size ranging from 12 to 48 bits, such as 32 bits in one embodiment.
Each of the Application Protection Layer (APL) 302 and the Data Protection Layer (DPL) 304 utilize individual sets of application programming interfaces (APIs) that are configured to piggyback on existing APIs, but add specialized functionality to any action performed using the existing APIs.
These new socket APIs and data protection APIs, and the type of application payload sent and received, do not disturb the intermediate security appliances such as firewall, Intrusion Prevention and Intrusion Detection, etc.
The application instance 306 utilizes the one or more server base socket(s) 310 with standard and/or private well-known port number(s) as a control socket, but opens a new data socket descriptor and allocates a different port number to the new data socket descriptor in order to handle actual functionality and data transfer between the computing system 300 and any other external or peer system. The server base socket 310 has the following attributes and/or characteristics:
5. Other socket options provided by the operating system, the user, or an external input.
The above described attributes and/or characteristics may also be attributed to the plurality of allocated data socket descriptors 312, 314, 316, . . . , 318. When a connection is established between the computing system 300 and another system via the application instance 306, a data socket descriptor is allocated. The allocated data socket descriptor has the following attributes and/or characteristics:
Apart from the above described characteristics and/or attributes, additional characteristics that may be attributable to an allocated data socket descriptor include:
These unique attributes when combined together in one of many different variations, are able to identify a data socket descriptor, and locks that data socket descriptor to one particular instance of a scaled-out application group.
Now referring to
The Start of Frame Delimiter (SFD) 402 comprises a common, identifiable sequence which indicates the presence of the ADPL tag 400 and is positioned at a start to the ADPL tag 400. The SFD 402 may have a value of 0xAB, where A and B are bit sequences that are from 2 to 8 bits in length, such as 4 bits in one embodiment, resulting in a total length of the SFD 402 of 8 bits in this embodiment.
The first ID field (ID1) 404 is configured to store a globally unique identification number that is provided for an entity, domain, client, or portion thereof, that will utilize the ADPL mechanism in application security. The first ID field 404 may have a length from 6 to 24 bits, such as 14 bits in one embodiment. In a further embodiment, an additional 2 bits may be assigned to the first ID field 404 to allow for more unique values to be represented by this field. For example, when 14 bits are used, 16,384 unique values are possible that may be used to represent 16,384 different entities; however, when 16 bits are used, 65,536 unique values are possible that may be used to represent 65,536 different entities. Moreover, the first ID field 404 may be used for segmentation or grouping of the receiver data socket descriptor and the transmitter data socket descriptor for various purposes, such as providing security to the application and data.
The second ID field (ID2) 406 is configured to store a unique identification number within the entity, domain, client, or portion thereof that is assigned an associated first ID. Each second ID may represent a subdomain, subclient, business unit, department, etc., within the entity, domain, client, etc., that is assigned the associated first ID. The second ID 406 may have a length from 2 to 12 bits, such as 6 bits in one embodiment. For example, when 6 hits are used, 64 unique values are possible that may be used to represent 64 different subdomain or units within a company represented by the associated first ID. Moreover, the second ID field 406 may be used for segmentation or grouping of the receiver data socket descriptor and the transmitter data socket descriptor for various purposes, such as providing security.
The first reserved field (Res1) 408 is an optional reserved field that may be used for future expansion and/or incorporation of additional information in the ADPL tag 400, as would be understood by one of skill in the art. The first reserved field 408 may have a length from 1 to 8 bits, such as 4 bits in one embodiment.
The security profile field 410 is configured to store a security profile value calculated for a sender or for transmitting flow from the sender of the payload that includes the ADPL tag 400. The security profile is dependent on the security status of the sender host (the system which sent the packet having the ADPL tag 400 therein) derived by threat detection agents, entities, and/or applications executing on or configured to analyze the security of the sender host. The value of this parameter may be internally interpreted by a receiver host based on various feedbacks from one or more security end des on the receiver host. The security profile field 410 may have a length from 2 to 6 bits, such as 3 bits in one embodiment. For example, when the security profile field 410 is 3 bits in length, 8 possible values are available for designation of security profile. Moreover, the security profile field 410 may be derived from various sources related to the host, and may be used to understand vulnerabilities of the transmitter data socket descriptor, the application instance associated with the transmitter data socket descriptor, and the associated host.
Evaluation by an end point protection agent (EPPA) of the security state of the sender host. The security profile represents a risk profile of the sender host. Based on the security profile, data security policies may be applied by the receiver host upon analyzing the security profile stored in the security profile field 410 of the ADPL tag 400. In addition, in some approaches, the ADPL library is configured to map the security profile to individual data socket descriptor(s) on the sender host and individual data socket descriptor(s) on the receiver host The security profile field 410 is populated in the egress payload, in one approach, only when a local EPPA determines to change the security profile than what was previously communicated in a previously sent packet.
The security profile field 410 may have the following formats:
The secure source signature field 412 is configured to store a value representing a secure source signature for the packet payload being sent from the sender host. The value stored in the secure source signature field 412 is a. scrambled number used as a signature on a per data socket descriptor basis. In one embodiment, the secure source signature is an application administrator provided seed signature, which is provided based on one or more policies executing on the sender host. Moreover, the secure source signature field 412 may be used to verify credibility of the sender with respect to the receiver data socket descriptor.
The secure source signature stored in the secure source signature field 412 may be generated and scrambled, in one embodiment, by a Key Generator Module (KGM) which generates unique keys based on various contexts for transmission and verification of received payload(s). The KGM may use one of 16 (or more) scramblers to scramble the secure source signature. The secure source signature field 412 may have a size from 24 to 60 bits, such as 48 bits in one embodiment.
The buffer length field (Length) 414 is configured to store a value that represents a buffer length of the application payload, prior to having the ADPL tag 400 added thereto. The buffer length field 414 may have a length from 4 to 24 bits, such as 8 bits in one embodiment. Moreover, the buffer length field 414 may be configured to store a number of bits which accommodate the remainder of modulo 4.
The sequence number ID field (Seq. ID) 416 is configured to store a value that represents a sequence number ID, which is a unique ID designating a payload sequence prior to being fragmented into individual packets of data, as is understood by those of skill in the art.
The second reserved field (Res2) 418 is an optional reserved field that may be used for future expansion and/or incorporation of additional information. in the ADPL tag 400, as would be understood by one of skill in the art. The second reserved field 418 may have a length from 4 to 24 bits, such as 16 bits in one embodiment. In one embodiment, the second reserved field 418 may be used to extend the secure source signature field 412 when more space is needed for this field, or any other.
The End of Frame Delimiter (EFD) 420 comprises a common, identifiable sequence which indicates the end of the ADPL tag 400 and is positioned at an end of the ADPL tag 400. The EFD 420 may have a value of 0xBA, where A and B are bit sequences that are from 2 to 8 bits in length, such as 4 bits in one embodiment, resulting in a total length of the EFD 420 of 8 bits in this embodiment. In this embodiment, the SFD 402 and the EFD 420 recite the same two sets of sequences 0xA and 0xB, but swap the position of these sequences, 0xAB in the SFD 402 and 0xBA in the EFD 420. Of course, the SFD 402 and the EFD 420 may have another arrangement that is identifiable for marking the start and end of the ADPL tag 400 in other embodiments not specifically described herein.
In another embodiment, some or all of the ADPL tag 400 may be encrypted according to one or more of any known cryptographic algorithm, as would he known to one of skill in the art. In a further embodiment, all of the ADPL tag 400 may be encrypted except for the STD 402 and EFD 420, in order to allow for the ADPL tag 400 to be identified, and decrypted when appropriate, in response to receiving a packet containing the ADPL tag 400.
The various fields described above for the ADPL tag 400 are not limited to only the functions described herein, and more or less fields may be used in an ADPL tag 400 in various embodiments riot specifically described herein.
Now referring to
The application payload 422 is configured to store the data portion of the packet 450 for transmission from the sender host to the receiver host, as is known known by those of skill in the art.
The TCP/UDP header 424 is a field configured to store TCP and/or UDP header information for traversing the network to allow delivery of the packet 450 to its intended destination as is known to those of skill in the art.
The IPv4/IPv6 header 426 is a field configured to store IPv4 and/or IPv6 header information for traversing the network to allow delivery of the packet 450 to its intended destination as is known to those of skill in the art.
The Ethernet (Layer-2) header (Eth-L2) 428 is a field configured to store Ethernet header information for traversing the network to allow delivery of the packet 450 to its intended destination as is known to those of skill in the art.
In another embodiment, some or all of the packet 450 may be encrypted according to one or more of any known cryptographic algorithm, as would be known to one of skill in the art.
The ADPL tag 400 may be located at any position within the packet 450, including at the start of the application payload 422, within the application payload 422, at the end of the application payload 422, at any location inside the payload or between any of the other fields in the packet 450.
In
In
The various fields described above are not limited to only the functions described herein, and more or less fields may be used in any packet used to transmit at least a portion of an application payload and an ADPL tag 400, in various embodiments not specifically described herein.
In one embodiment, one ADPL tag may be added for the whole application payload, as shown in
Current approaches to data center security utilize a form of segmentation to group and segregate applications or application instances to limit and avoid threat propagation on an application-level. However, applications are complex and have huge amounts of vulnerabilities (threat surfaces) that segmentation at an application-level does not provide deterministic security from threats and threat propagation aimed at these vulnerabilities.
According to embodiments described herein, segmentation is performed at the smallest threat surface of application possible, i.e., at the data socket descriptor-level. At this low level, just like working at a level of cell DNA, security provisioning is mathematical and deterministic. The data socket descriptors are provided with Operating System (OS) specific attributes, application specific attributes, mathematical attributes, and proprietary attributes. Segmentation is performed based on common attributes across data socket descriptors for similar application instances. Such segmentation is also referred to as pico-segmentation or use of a pico-segment.
Now referring to
Each of the steps of the method 500 may be performed by any suitable component of the operating environment. For example, in various embodiments, the method 500 may he partially or entirely performed by a server, host, computing system, processor, switch, or some other device having one or more processing units therein. The processing unit, e.g., processing circuit(s), chip(s), and/or module(s) implemented in hardware and/or software, and preferably having at least one hardware component, may be utilized in any device to perform one or more steps of the method 500. Illustrative processing units include, but are not limited to, a central processing unit (CPU), an ASIC, a FPGA, etc., combinations thereof, or any other suitable computing device known in the art.
As shown in
In various embodiments, the ADPL tag may comprise any or all of the fields described hereafter. A first ID field may be included in the ADPL tag that is configured to store a programmable, globally unique identification number that is provided on a per-entity basis (one ID for each entity that is utilizing the ADPL tagging scheme), which may he referred to as a client or company identification number (CID) in some approaches. A second ID field may be included in the ADPL tag that is configured to store a programmable, unique identification number within the entity provided the first ID, which may be referred to as an organization or department identification number (DID) in some approaches. A security profile field may be included in the ADPL tag that is configured to store a security profile value calculated for the first host. Also, a secure signature field may be included in the ADPL tag that is configured to store a secure source signature for the application payload.
In one embodiment, the secure source signature may be based, at least in part, on attributes of the sender data socket descriptor and a receiver data socket descriptor. In this embodiment, the attributes of the sender arid receiver data socket descriptors may include any or all of the following information: a server and/or a source IP interface, a server or host port number, a maximum number of allowable waiting connections, an application packet buffer size for transmitting and receiving data, a port number of a transport of the sender data socket descriptor, an IP address of a receiver data socket descriptor in the second host, a port number of the transport of the receiver data socket descriptor in all cases of controlled port allocations by the first application instance, bandwidth and flow specific mathematical transforms, a maximum application packet buffer size usable for transmitting data to and receiving data from the receiver data socket descriptor, etc.
In one embodiment, the ADPL tag may also include a buffer length field configured to store a value that represents a buffer length of the application payload prior to modifications due to addition of the ADPL tag to the application payload. This field may be used to identify a size of the ADPL tag within the application payload.
According to another embodiment, the ADPL tag may also include a sequence number ID field configured to store a value that represents a sequence number ID, the sequence number ID being a unique number designating a sequence of the application payload prior to being fragmented into individual packets of data for transmission to the second host. This field is used when the application payload is split amongst a plurality of data packets for transmission to another host.
According to another embodiment, the security profile value stored in the security profile field may be selected according to the following guidance. All zeros may be used to indicate for the second host to continue using a security profile in a last received ADPL tag. A non-zero value may be used to indicate that a new security profile status is being indicated in response to a change from a previously communicated security profile value. A value of 0xFFFFF may be used to indicate an unknown security profile for the first host when the first host is unable to ascertain a security profile for itself.
In operation 504, the ADPL tag may be embedded as part of an application payload in response to the first application instance calling an application programming interface (API) configured to transmit the application payload out from the first host via a sender data socket descriptor, according to one embodiment.
In operation, the ADPL tag may be retrieved, verified, and processed as part of application payload receiving by the second application instance calling an API configured to receive the payload via a receiver data socket descriptor according to another embodiment.
In even more embodiments, the ADPL tag may be embedded in a header of one or more data packets in which the application payload is divided, in order to store the ADPL tag for receipt thereof at one of the first or second hosts.
In optional operation 506, a packet having the application payload arid embedded ADPL tag may be sent, by the first application instance, to the second host. Of course, more than one packet may be used to transmit the application payload to the second host, and each of these packets would have a matching ADPL tag embedded therein.
In a further embodiment, a second application instance operating on the second host may receive the ADPL tag as part of the application payload in response to calling an application programming interface (API) configured to receive the application payload via a receiver data socket descriptor.
Moreover, the first application instance may receive, in response to calling an API configured to receive an application payload via a receiver data socket descriptor, a second application payload, and the first application instance may extract from this second application payload a second ADPL tag.
According to one embodiment, the ADPL tag may be designated within the application payload at a start of the ADPL tag by a STD and at an end of the ADPL tag by an EFD.
Moreover, the ADPL tag may be stored at a beginning of the application payload, at an end of the application payload, or between the beginning and the end of the application payload using a programmable offset. The programmable offset may be initialized by a user, automatically according to a random or preprogramed algorithm, or according to some other suitable method of determining an offset within the application payload, as would be understood by one of skill in the art. In a further embodiment, in response to the application payload being split across more than one data packet, one ADPL tag may be embedded in each portion of the application payload, and each individual ADPL tag may be positioned in the same place, or in different paces according to a predetermined scheme that is understood by the first and second hosts.
In accordance with another embodiment, in optional operation 508, at least a portion of the ADPL tag prior to embedding the ADPL tag may be encrypted in the application payload with the proviso that the SFD is not encrypted. Moreover, in a further embodiment, the application payload is not encrypted other than the portion of the ADPL tag that is encrypted.
Method 500 may be implemented as a system, process, or a computer program product. As a system, method 500 may be implemented on the first host and/or the second host as logic configured to perform method 500, along with being implemented on any other hosts on which secure communications are desired. As a computer program product, a computer readable storage medium may store program instructions configured to perform method 500.
For example, a system may include a processing circuit and logic integrated with and/or executable by the processing circuit The processing circuit is a non-transitory hardware device configured to execute logic embedded therein, or provided thereto. Examples of processing circuits include, but are not limited to, CPUs, ASICs, FPGAs, microprocessors, integrated circuits, etc. The logic is configured to cause the processing circuit to generate a multi-context ADPL tag unique to a pair of data socket descriptors on which data is to he received and/or transmitted by a first application instance operating on the system arid a second application instance operating on a second host. The logic is also configured to embed the ADPL tag as part of an application payload in response to the first application instance calling an API configured to transmit the application payload out from the system via a sender data socket descriptor.
In another example, a computer program product may include a computer readable storage medium having program instructions stored thereon. The computer readable storage medium is a non-transitory device configured to store program instructions that are executable and/or readable by a processing circuit. The program instructions are executable by a processing circuit to cause the processing circuit to perform method 500 as follows: generate a multi context ADPL tag unique to a pair of data socket descriptors on which data is to be received and/or transmitted by a first application instance operating on a first host and a second application instance operating on a second host, and embed the ADPL tag as part of an application payload in response to the first application instance calling an API configured to transmit the application payload out from the first host via a sender data socket descriptor.
Variations of the systems, methods, and computer program products described herein are also possible, and the explicit description thereof in this document is not required in order to provide those of skill in the art with the ability to conceive of such variations when reading the present descriptions.
| Number | Date | Country | |
|---|---|---|---|
| 62175271 | Jun 2015 | US |
