公开(公告)号：US20140047557A1

公开(公告)日：2014-02-13

申请号：US13941269

申请日：2013-07-12

Applicant: Infosys Limited

Inventor： Ravi Sankar Veerubhotla ,  Ashutosh Saxena ,  Shikha Gupta ,  Harigopal K.B. Ponnapalli

IPC: G06F21/10

CPC classification number: G06F21/10 ,  H04L63/0428 ,  H04L63/102 ,  H04L2463/101

Abstract: The invention relates to a system and method providing access of one or more heterogeneous digital contents to at least one online Digital Rights Management (DRM) user by a DRM server. This invention involves receiving digital contents from the publishers and those digital contents are encrypted and user rights are granted to access the contents by the publisher. The DRM server stores the decryption information, user rights and user information in a repository. After authenticating the user who is connected with the DRM server through a DRM client, the DRM server sends a license to the DRM user which includes the decryption information and the user rights. The DRM client decrypts the contents based on the license information in the memory of the user's computer device and thus the content and the license are not locally stored.

Abstract translation: 本发明涉及一种由DRM服务器提供一个或多个异构数字内容到至少一个在线数字权限管理（DRM）用户的访问的系统和方法。 本发明涉及从出版商接收数字内容，并且对这些数字内容进行加密，并且授予用户权限以由发行者访问内容。 DRM服务器将解密信息，用户权限和用户信息存储在存储库中。 在通过DRM客户端认证与DRM服务器连接的用户之后，DRM服务器向包括解密信息和用户权限的DRM用户发送许可证。 DRM客户端基于用户计算机设备的存储器中的许可证信息来解密内容，因此内容和许可证不被本地存储。

公开(公告)号：US10375210B2

公开(公告)日：2019-08-06

申请号：US14662911

申请日：2015-03-19

Applicant: Infosys Limited

Inventor： Shikha Gupta ,  Ravi Sankar Veerubhotla ,  Ashutosh Saxena ,  Harigopal K. B. Ponnapalli

IPC: G06F17/30 ,  H04L29/06 ,  G06F21/10 ,  G06F7/04 ,  G06F21/31

Abstract: The present disclosure provides method for accessing digital web content. It provides for selective access rights for users, to a web content. When the user tries to retrieve the data, the system checks for the rights available to the user, and accordingly implements the access before providing the content.

公开(公告)号：US20150262084A1

公开(公告)日：2015-09-17

申请号：US14635859

申请日：2015-03-02

Applicant: INFOSYS LIMITED

Inventor： Ashutosh Saxena ,  Ravi Sankar Veerubhotla ,  Harigopal K.B. Ponnapalli

IPC: G06Q10/00

CPC classification number: G06Q10/00 ,  G06Q2220/18

Abstract: The technique relates to a method for defending static and dynamic reverse engineering of software license control and devices thereof. To defend static reverse engineering of software license control the licensed application is wrapped with encryption wrapper, wherein the encryption wrapper encrypts the application with a first password. Then, at the time of executing the application, a password prompt is generated. Upon receiving the first password the application is decrypted. At the time of closing the application after execution, another password prompt is generated to create the second password and then the application is re-encrypted with the second password. To defend dynamic reverse engineering of software license control one or more licensing conditions of the licensed application is tested based on control file information, a random number generation or verification point rules. If any license condition violation is detected during testing then the application gets auto-locked by applying self-encryption technique.

Abstract translation: 该技术涉及一种用于保护软件许可证控制的静态和动态逆向工程的方法及其装置。 为了保护软件许可证控制的静态逆向工程，许可的应用程序用加密包装器包装，其中加密包装器使用第一个密码加密应用程序。 然后，在执行应用程序时，生成密码提示。 收到第一个密码后，应用程序被解密。 在执行后关闭应用程序时，会生成另一个密码提示，以创建第二个密码，然后使用第二个密码重新加密应用程序。 为了保护软件许可证控制的动态逆向工程，基于控制文件信息，随机数生成或验证点规则测试许可应用程序的一个或多个许可条件。 如果在测试期间检测到任何许可证条件违规，则应用程序通过应用自加密技术自动锁定。

公开(公告)号：US20140047558A1

公开(公告)日：2014-02-13

申请号：US13941315

申请日：2013-07-12

Applicant: Infosys Limited

Inventor： Ravi Sankar Veerubhotla ,  Ashutosh Saxena ,  Shikha Gupta ,  Harigopal K.B. Ponnapalli

IPC: G06F21/10

CPC classification number: G06Q20/1235 ,  G06F21/10 ,  G06F21/105 ,  H04L63/0428 ,  H04L63/102 ,  H04L2463/101

Abstract: The invention relates to a system and method providing access of one or more heterogeneous digital contents to at least one offline Digital Rights Management (DRM) user by a DRM server. This invention involves establishing the trust relationship among the DRM server, DRM client, user's machine and the end user by means of digital certificate. The server generates protected digital content by means of using a standard encryption algorithm. The invention further involves determining whether a license for accessing the protected file is requested by the legitimate user, and if so, generating a license consisting the user rights and the protected decryption key to be downloaded by legitimate user. The DRM client decrypts the protected file using a decryption key of the license, and renders the content to the end user by calling the appropriate and customized viewer during consumption.

Abstract translation: 本发明涉及通过DRM服务器提供一个或多个异构数字内容到达至少一个离线数字权限管理（DRM）用户的访问的系统和方法。 本发明涉及通过数字证书建立DRM服务器，DRM客户端，用户机和最终用户之间的信任关系。 服务器通过使用标准加密算法生成受保护的数字内容。 本发明还涉及确定用于访问受保护文件的许可证是否被合法用户请求，如果是，则生成由用户权限组成的许可证和被合法用户下载的受保护的解密密钥。 DRM客户端使用许可证的解密密钥解密受保护的文件，并通过在消费期间调用适当和定制的查看器来将内容呈现给最终用户。

公开(公告)号：US09805350B2

公开(公告)日：2017-10-31

申请号：US13941315

申请日：2013-07-12

Applicant: Infosys Limited

Inventor： Ravi Sankar Veerubhotla ,  Ashutosh Saxena ,  Shikha Gupta ,  Harigopal K. B. Ponnapalli

IPC: G06F21/10 ,  G06Q20/12 ,  H04L29/06

CPC classification number: G06Q20/1235 ,  G06F21/10 ,  G06F21/105 ,  H04L63/0428 ,  H04L63/102 ,  H04L2463/101

Abstract: The invention relates to a system and method providing access of one or more heterogeneous digital contents to at least one offline Digital Rights Management (DRM) user by a DRM server. This invention involves establishing the trust relationship among the DRM server, DRM client, user's machine and the end user by means of digital certificate. The server generates protected digital content by means of using a standard encryption algorithm. The invention further involves determining whether a license for accessing the protected file is requested by the legitimate user, and if so, generating a license consisting the user rights and the protected decryption key to be downloaded by legitimate user. The DRM client decrypts the protected file using a decryption key of the license, and renders the content to the end user by calling the appropriate and customized viewer during consumption.

公开(公告)号：US20150269364A1

公开(公告)日：2015-09-24

申请号：US14662911

申请日：2015-03-19

Applicant: Infosys Limited

Inventor： Shikha Gupta ,  Ravi Sankar Veerubhotla ,  Ashutosh Saxena ,  Harigopal K.B. Ponnapalli

IPC: G06F21/10 ,  H04L29/06 ,  G06F21/31

CPC classification number: H04L67/42 ,  G06F21/10 ,  G06F21/31 ,  H04L63/08 ,  H04L63/105 ,  H04L2463/101

Abstract: The present disclosure provides method for accessing digital web content. It provides for selective access rights for users, to a web content. When the user tries to retrieve the data, the system checks for the rights available to the user, and accordingly implements the access before providing the content.

Abstract translation: 本公开提供了访问数字网络内容的方法。 它为用户提供对Web内容的选择性访问权限。 当用户尝试检索数据时，系统检查用户可用的权限，并相应地在提供内容之前实现访问。

公开(公告)号：US20140019586A1

公开(公告)日：2014-01-16

申请号：US13938380

申请日：2013-07-10

Applicant: Infosys Limited

Inventor： Ashutosh Saxena ,  Malakondayya Choudary Gorantla ,  Ravi Sankar Veerubhotla ,  Shikha Gupta ,  Ina Jain

IPC: H04L29/08

CPC classification number: H04L67/10 ,  G11C7/1009 ,  H04L67/04

Abstract: A method, non-transitory computer readable medium and data masking device comprising receiving an input string comprising one or more input characters from a client computing device. A first numeric value is mapped for each of the one or more input characters of the received input string based on one or more stored datasets. Each of the mapped first numeric values are masked using the one or more stored datasets for each of the one or more input characters of the received input string to a second numeric value. A masked character for each of the second numeric values is remapped based on the one or more stored datasets. The determined masked characters are provided to the requesting client computing device.

Abstract translation: 一种方法，非暂时性计算机可读介质和数据屏蔽设备，包括从客户端计算设备接收包括一个或多个输入字符的输入串。 基于一个或多个存储的数据集，对接收的输入字符串的一个或多个输入字符中的每一个映射第一数值。 映射的第一数值中的每一个被使用所接收的输入字符串的一个或多个输入字符中的每一个的一个或多个存储数据集屏蔽到第二数值。 基于一个或多个存储的数据集重新映射每个第二数值的屏蔽字符。 确定的屏蔽字符被提供给请求客户端计算设备。