This invention relates to systems and methods for encryption and storage of data, and more particularly to improving systems and methods for providing standards compliant encryption, storage, and retrieval of data.
The use of web-based systems has proliferated for many years, and as the use of web-based systems has grown, so too has the amount of data that is communicated between end-users and the web-based systems. The data communicated between the end-users and the web-based systems often includes sensitive information (e.g., credit card numbers, bank account numbers, social security numbers, driver's license numbers, etc.). Many web-based systems retain this sensitive information for various purposes. For example, some e-commerce websites store user credit card information so that the user does not have to provide that information each time they perform a transaction with the e-commerce website.
Various data security techniques and protocols have been developed to protect sensitive user data from exposure to unauthorized third parties. One such protocol is the payment card industry data security standard (PCI DSS) which was developed to increase controls for protecting cardholder data and to reduce credit card fraud caused by unauthorized exposure of the cardholder data. The PCI DSS defines various safeguards and data protection methods that should be used by entities that process, store, and/or transmit financial card information. While compliance with PCI DSS is not mandated by federal laws, many states have either referenced the PCI DSS, made equivalent provisions, or incorporated the PCI DSS into state law. Further, compliance with the PCI DSS may shield entities that process cardholder data from liability in the event that the cardholder data is breached (e.g., accessed by an unauthorized third party).
For many entities, establishing PCI DSS compliance can be a costly and time consuming process. For example, a user may enter cardholder data (e.g., credit card number, expiration date, control verification value (CVV), etc.) into a form on a website using an electronic device, such as a smart phone, tablet computing device, or other personal computer/laptop. When the user submits the form the cardholder data may be encrypted using transport layer security (TLS) and transmitted to a web server via a hypertext transfer protocol secure (HTTPS) communication link. Upon receiving the cardholder information, the web server may invoke an application programming interface (API) call that processes the cardholder information to facilitate a transaction. In addition to processing the cardholder information, the API call may create a log entry that includes at least a portion of the cardholder data, and the log may be written to storage. When the cardholder information is stored in the log entry, the cardholder data becomes at rest data (e.g., stored data), and any systems accessing and/or storing the at rest data may be subject to monitoring, auditing, and reporting for compliance with the PCI DSS. For example, when the web server stores the cardholder information at a data center, both the web server and the data center may be subject to PCI DSS compliance monitoring, auditing, and reporting to verify that the cardholder information has not been stored in an unprotected format (e.g., as unencrypted data). As the number of systems accessing the data center increases, the scope and cost of PCI DSS compliance monitoring, auditing, and reporting may also increase.
Compliance monitoring, auditing, and reporting is further complicated and becomes more costly when techniques used for compliance monitoring, auditing, and reporting are performed statically. That is, when a system is configured to perform monitoring, auditing, and reporting in a certain way based on a current state of the relevant compliance standard (e.g., PCI DSS), changes to the compliance standard may require that the entire monitoring, auditing, and reporting protocols implemented by the system, as well as safeguards, such as when, where, and how data is stored, be retooled/reprogrammed, etc. to ensure compliance under the modified compliance standard. This further increases the costs of monitoring, auditing, and reporting for compliance purposes.
The present disclosure is directed to embodiments of systems, methods, and computer-readable storage media for encryption and storage of data using multiple data centers that provides a simple, dynamic, and scalable solution for compliance monitoring, auditing, and reporting processes, and that reduces the costs of implementing the compliance monitoring, auditing, and reporting processes. In an embodiment a first data center provides for encryption and decryption of sensitive data utilizing a compliant protocol standard. The encrypted data generated by the first data center is then provided back the appropriate device, and the device may then communicate the encrypted data to a second data center that provides business logic for providing one or more services to a user of the device based on the encrypted data. The second data center may include a database that may store the encrypted data. When a device needs to access the data (e.g., in either an encrypted or unencrypted format), the device may communicate a request for the data to the first data center, and the first data center may retrieve the requested data in an encrypted format from the database of the second data center. If the data is requested in an encrypted format, the data may be retrieved and communicated to the end-point device by the first data center without decrypting the data. If the data is requested in an unencrypted format, the data may be retrieved and decrypted by the first data center prior to being communicated from the first data center to the end-point device. Thus, all unencrypted data is processed by the first data center, and all information provided to, or retrieved from, the second data center is encrypted according to the appropriate compliance monitoring, auditing, and reporting standard, such as the PCI DSS.
Compliance monitoring, auditing, and reporting processes for systems configured according to embodiment may be simplified in many ways. For example, only the first data center may be subject to compliance monitoring, auditing, and reporting because all unencrypted data entering or leaving the system flows through the first data center only (i.e., the second data center does not receive or store unencrypted data). Further, because the first data center does not include a database store user data, the risk of unencrypted data being stored at rest may be eliminated or at least greatly reduced. Additionally, the second data center may be outside of the scope of the compliance monitoring, auditing, and reporting process because all data stored in the database of the second data center is stored in a compliant encryption format, thereby eliminating the risk that unencrypted data is stored at rest in the database of the second data center.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention. It should be appreciated by those skilled in the art that the conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. It should also be realized by those skilled in the art that such equivalent constructions do not depart from the spirit and scope of the invention as set forth in the appended claims. The novel features which are believed to be characteristic of the invention, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present invention.
For a more complete understanding of the present invention, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
Various features and advantageous details are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known starting materials, processing techniques, components, and equipment are omitted so as not to unnecessarily obscure the invention in detail. It should be understood, however, that the detailed description and the specific examples, while indicating embodiments of the invention, are given by way of illustration only, and not by way of limitation. Various substitutions, modifications, additions, and/or rearrangements within the spirit and/or scope of the underlying inventive concept will become apparent to those skilled in the art from this disclosure.
Referring to
As illustrated in
The data center 130 includes a processor 132, a memory 134, and backend services 138. In an embodiment, the memory 134 may store instructions 136 that, when executed by the processor 132, cause the processor 132 to perform the operations described with respect to the data center 130 with reference to
As shown in
In an embodiment, the end-point device 170 may be a point of sale system (POS) that communicates with the data center 130 via the proxy 122 in connection with utilizing one or more of the backend services 138, as described in more detail below. In an additional or alternative embodiment, the end-point device 170 may be a portal that interfaces the data centers 110, 130 to a third party system. For example, the end-point device 170 may be a portal that interfaces the data centers 110, 130 with a credit card processing system (e.g., a portal for processing Visa® credit card payments). In still another additional or alternative embodiment, the end-point device 170 may be a web-server, such as a web-server that provides online shopping services to consumers.
During operation, a user may use the electronic device 140 and/or the end-point device 170 to access a service (e.g., one of the backend services 138) provided by an operator of the data centers 110, 130. The service may require that the user provide various information that is relevant to the accessed service. Depending on the service, the data provided by the user may include sensitive data, such as a credit card information, driver's license information, passport information, bank account information, and the like. When the information provided in connection with the service includes sensitive data, the electronic device 140 and/or the end-point device 170 may be configured to transmit the sensitive information to the data center 110. The data center 110 may be configured to encrypt the sensitive data (e.g., using the security service 118 and the encryption/decryption service 120) to produce encrypted data, and the data center 110 may then transmit the encrypted data back to the electronic device 140 and/or the end-point device 170. In an embodiment, the data center 110 may encrypt the data using tokenization, and the encrypted data may be a token that is generated by the tokenization. In an embodiment, the data center 110 may be configured to not store the sensitive data at rest.
The electronic device 140 and/or the end-point device 170 may receive the encrypted data from the data center 110, and may transmit the encrypted data to the data center 130 in connection with accessing the one or more backend services 138. For example, when the service is an online purchase, the encrypted data may take the form of a token generated from credit card information, and the backend service accessed by the electronic device 140 and/or the end-point device 170 may facilitate processing of the purchase (e.g., using the token without having to receive the sensitive data). In an embodiment, the encrypted data may be stored as an entry in the database 150. For example, the accessed service may generate a log of transactions, and the log may include the encrypted data processed during each of the transactions. Because the data center 130 only receives encrypted data, and because the database 150 only stores encrypted data, the data center 130 and the database 150 may be outside the scope of compliance auditing for various purposes/standards. For example, the data center 130 and database 150 of embodiments may be outside the scope of PCI DSS monitoring, auditing, and reporting because sensitive information is never stored at the data center 130 and the database 150 in an unencrypted format. Thus, in the system 100 illustrated in
Further, when a device (e.g., the electronic device 140 and/or the end-point device 170) desires to access the encrypted information, the device may transmit a request to the data center 110. In an embodiment, the request may be provided to the proxy 122, and the proxy 122 may communicate with the data center 130 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, to retrieve the requested data from the database 150. The requested data (e.g., in an encrypted format) may be retrieved from the database 150, and may be provided from the data center 130 to the data center 110 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, and the data center 110 may either: 1) decrypt the data and provide the decrypted data to the device; or 2) provide the encrypted data to the device. From the foregoing it is shown that all data provided to, or retrieved from, the data center 130 is in an encrypted format, and that decrypted data is only provided to, or provided from, the system 100 via the data center 110, which encrypts all incoming data (e.g., data to be stored or otherwise provided to the data center 130), and may decrypt some, but not necessarily all, outgoing data (e.g., data retrieved from the data center 130). Additional aspects of embodiments for processing data and providing services are described below with reference to
In an embodiment illustrative of a first exemplary mode of operation for the system 100, the electronic device 140 may be a kiosk device operated by, or a mobile application provided by, a money transfer network entity. The money transfer network entity may also operate the data center 110 and the data center 130. The end-point device 170 may be a portal to a system operated by a credit card provider, a money transfer agent device located at a money transfer agent location, a web server, etc. During operation, a user may access the electronic device 140, and, using one or more graphical user interfaces (GUIs) presented by the electronic device 140, the user may provide information in connection with requesting a particular service (e.g., one of the backend services 138), such as a money transfer transaction, loading a prepaid card, a bill pay service, and the like. The one or more GUIs may prompt the user to enter various user data 102, which may include sensitive information. Rather than providing the user data 102 to the data center 130, and more particularly, the one or more backend services 138, the electronic device 140 may be configured to transmit the user data 102 to the data center 110. In an embodiment, the user data 102 may only be transmitted to the data center 110 when the user data 102 includes sensitive information. For example, the GUI may be programmed to determine whether a requested service requires the user to input sensitive information (e.g., credit card number, social security number, driver's license number, passport number, bank account information, and the like), and, in response to a determination that the requested service utilizes sensitive information, the electronic device 140 may transmit the user data 102 to the data center 110. In an embodiment, the electronic device 140 may be communicatively coupled to the data center 110 via a secure communication link. For example, the electronic device 140 may communicate with the data center 110 using an HTTPS or other security protocol. In an embodiment, the communication link between the electronic device 140 and the data center 110 may facilitated through the firewall 180.
The data center 110 may receive the user data 102 from the electronic device 140, and, in response to receiving the user data 102, the data center 110 may encrypt the user data 102 to produce encrypted data 104. In an embodiment, the user data 102 may be encrypted using tokenization, and the encrypted data 104 may be a token. In an embodiment, the user data 102 may be included in a body of a message. In an embodiment, the message may be a hypertext transfer protocol (HTTP) message, and the body of the HTTP message may include the data that is to be encrypted by the data center 110. In an embodiment, a header of the HTTP message may include information that identifies the location of the data within the body of the HTTP message. In an additional or alternative embodiment, the header of the HTTP message may include information that identifies a destination for the data, such that the data center 110 may provide the encrypted data 104 to the destination, rather than the electronic device 140, as described in more detail with reference to
After generating the encrypted data 104, the data center 110 may transmit the encrypted data 104 to the electronic device 140 and/or other destination devices depending on a configuration of the message (e.g., a configuration of HTTP headers, etc.). In response to receiving the encrypted data 104, the electronic device 140 may transmit the encrypted data 104 to the data center 130. In an embodiment, the encrypted data 104 may be transmitted to the data center 130 as a request to access one of the backend services 138. In response to receiving the encrypted data 104, the data center 130 may store the encrypted data 104 in the database 150. In an embodiment, the encrypted data 104 may be stored in the database 150 as a result of processing by one or more of the backend services 138. For example, a user may access the electronic device 140 to perform a transaction, such as loading funds onto a prepaid card, where the loading of the funds is provided by one of the backend services 138. The user may provide the user data 102 in response to prompts presented at the electronic device 140, and then the user data 102 may be communicated to the data center 110 for encryption and then the encrypted data 104 may be returned to the electronic device 140. The electronic device 140 may then provide the encrypted data 104 to the backend service 138, which may use the encrypted data 104 to load value onto the prepaid card. As a result of the transaction, the backend service 138 may create an entry in the database 150 that includes the encrypted data 104.
In an embodiment, access to the encrypted data stored at the database 150 may be provided by the data center 110. For example, the end-point device 170 may request access to the encrypted data 104 in connection with providing one of the backend services 138. In an embodiment, access to the encrypted data 104 may be provided to the end-point device 170 via the data center 110. The end-point device 170 may communicate a request to the proxy 122 of the data center 110, where the request indicates that the end-point device 170 is requesting access to the encrypted data 104. In response to receiving the request, the data center 110 may retrieve the encrypted data 104 from the database 150 of the data center 130. Upon receiving the encrypted data 104 from the data center 130 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, the data center 110 may decrypt the encrypted data 104 to produce decrypted data 106, and may provide the decrypted data 106 to the end-point device 170. The end-point device 170 may then process the decrypted data 106 to complete the transaction provided by the backend service 138. For example, in an embodiment, the end-point device 170 may be a portal that provides access to a financial card network operated by a financial card provider. If the backend service 138 accessed by the user of the electronic device 140 involves processing a credit card payment, the user data 102 may include financial card information, and the encrypted data 104 may include encrypted financial card information. The encrypted data 104 may be retrieved from the database 150 by the data center 110, and then provided from the data center 110 to the end-point device 170 for further processing (e.g., to complete the credit card payment). In an embodiment, the data center 110 may provide encrypted data 104 to the end-point device 170 without decrypting the encrypted data 104. In an additional or alternative embodiment, the data center 110 may decrypt the encrypted data 104 to generate the decrypted data 106, and may provide the decrypted data 106 to the end-point device 170. The end-point device 170 may then perform further processing of the data to facilitate the transaction requested by the user and/or the backend service 138. In an embodiment, the processing performed by the end-point device 170 may generate data that is to be stored in the database 150. In such instances, the data may be provided to the data center 110 where the data may be encrypted and subsequently provided through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, to the data center 130 for storage in the database 150.
In an embodiment, the data center 110 may be monitored and periodically audited to determine whether data that has been encrypted by the data center 110 has been stored (e.g., in an unencrypted format) at rest within the data center 110. As explained above, in some embodiments, the data center 110 may not include a database for storing user data. Thus, the likelihood that user data is stored at rest within the data center 110 may be reduced or eliminated. This may increase the likelihood that the result of the monitoring and periodic auditing results in a determination that the data center 110 is compliant with various data privacy/security standards, such as the PCI DSS. Further, from the foregoing it has been shown that the data center 130 does not receive unencrypted sensitive user data, and that all sensitive user data stored in the database 150 is stored in an encrypted format. Additionally, in some embodiments, the data center 130 does not include decryption capabilities, and is therefore not capable of decrypting the sensitive user data stored in the database 150. This may prevent the data center 130 from inadvertently storing sensitive user data at rest in an unencrypted format within the data center 130 and/or the database 150. Accordingly, the data center 130 and the database 150 may be outside the scope of compliance monitoring, auditing, and reporting for various data privacy/security standards, such as the PCI DSS, which may significantly reduce the costs associated with implementing the compliance auditing, monitoring, and reporting, decrease the amount of time required to perform such tasks, and may increase the accuracy of such tasks. Further, the configuration of the system 100 shown in
Referring to
In a first exemplary data flow according to embodiments, the end-point device 170 may send a request 210 to the data center 110 (e.g., via the proxy 122). In an embodiment, the request 210 may be a request to access data stored at the database 150. In response to receiving the request 210, the data center 110 may forward or otherwise communicate the request 210 to the data center 130 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication. The data center 130, in response to receiving the request 210 from the data center 110, may generate a query 212 and provide the query 212 to the database 150. As a result of the query 212, encrypted data 214 may be retrieved from the database 150, and the encrypted data 214 may then be provided from the data center 130 to the end-point device 170 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, and the data center 110 as requested data 216. In an embodiment, the requested data 216 may be the same as the encrypted data 214 (e.g., the data center 110 does not decrypt the encrypted data 214 prior to providing it to the end-point device 170). In an additional or alternative embodiment, the requested data 216 may be decrypted data generated at the data center 110 by decrypting (e.g., using the security service(s) 118 and/or the encryption/decryption service(s) 120) the encrypted data 214. It is noted that the decrypted data may not be provided to the data center 130, thereby maintaining the data center 130 outside of the scope of the compliance monitoring, auditing, and reporting processes.
In a second exemplary data flow according to embodiments, the electronic device 140 may send a request 220 to the data center 110. In an embodiment, the request 220 may be a request to access data stored at the database 150. In response to receiving the request 220, the data center 110 may forward or otherwise communicate the request 220 to the data center 130 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication. The data center 130, in response to receiving the request 220 from the data center 110, may generate a query 222 and provide the query 222 to the database 150. As a result of the query 222, encrypted data 224 may be retrieved from the database 150, and the encrypted data 224 may then be provided from the data center 130 to the electronic device 140 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, and the data center 110 as requested data 226. In an embodiment, the requested data 226 may be the same as the encrypted data 214 (e.g., the data center 110 does not decrypt the encrypted data 224 prior to providing it to the end-point device 170). This may enable the electronic device 140 to access one or more of the backend services 138 that may utilize the encrypted data 224 to provide a service to a user of the electronic device 140. In an additional or alternative embodiment, the requested data 226 may be decrypted data generated at the data center 110 by decrypting (e.g., using the security service(s) 118 and/or the encryption/decryption service(s) 120) the encrypted data 224. It is noted that the decrypted data may not be provided to the data center 130, thereby maintaining the data center 130 outside of the scope of the compliance monitoring, auditing, and reporting processes.
In a third exemplary data flow according to embodiments, the electronic device 140 may send a request 230 to the data center 110. In an embodiment, the request 230 may be a request to process data stored at the database 150. For example, the request 230 may be a request to conduct a transaction using financial card information that has been previously stored at the database 150 in an encrypted format. In an embodiment, the request 230 may identify an address (e.g., an address of a web server) where data retrieved from the database 150 in response to the request 230 is to be provided. In response to receiving the request 230, the data center 110 may forward or otherwise communicate the request 230 to the data center 130 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication. The data center 130, in response to receiving the request 230 from the data center 110, may generate a query 232 and provide the query 232 to the database 150. As a result of the query 232, encrypted data 234 may be retrieved from the database 150, and the encrypted data 234 may then be provided from the data center 130 to the end-point device 170 through the firewall 160 via a secure connection such an https connection, a virtual private network connection or other form of network communication, and the data center 110 as requested data 236. In an embodiment, the requested data 236 may be the same as the encrypted data 214 (e.g., the data center 110 does not decrypt the encrypted data 234 prior to providing it to the end-point device 170). This may enable the electronic device 140 to access one or more of the backend services 138 that may utilize the encrypted data 224 to provide a service to a user of the electronic device 140 via one or more external systems (e.g., one or more external systems that communicate with the system 100 via the end-point device 170). In an additional or alternative embodiment, the requested data 236 may be decrypted data generated at the data center 110 by decrypting (e.g., using the security service(s) 118 and/or the encryption/decryption service(s) 120) the encrypted data 234. It is noted that the decrypted data may not be provided to the data center 130, thereby maintaining the data center 130 outside of the scope of the compliance monitoring, auditing, and reporting processes.
At 310, the method 300 includes receiving data at a first data center from a first device. In an embodiment, the first data center may be the data center 110 of
Subsequently, the method 300 may include, at 360, receiving, at the first data center, a request to access the encrypted data. In an embodiment, the request may be received in connection with providing a service (e.g., one of the backend services 138 of
Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
The present application is a continuation of U.S. patent application Ser. No. 14/991,533 filed Jan. 8, 2016 and entitled “SYSTEMS AND METHOD FOR PROVIDING A DATA SECURITY SERVICE,” the disclosure of which is incorporated by reference herein in its entirety.
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Child | 15965454 | US |