Patents by Inventor Vijay K. Gajjala

Vijay K. Gajjala has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Digests to identify elements in a signature process
    Patent number: 8725776
    Abstract: A signature system with a mechanism to identify element(s) of a signed document includes a sender having a signature module with a digest generator. The digest generator generates digests for identifying selected elements of the document. The resulting “identifying” digests are then used in generating a signature in which the sender signs the digests rather than the original elements. The receiver can then process the signature and use these digests to distinguish between elements, as needed.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: May 13, 2014
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Giovanni M. Della-Libera, Vaithialingam Balayoghan, Tomasz Janczuk
  • Provisioning of digital identity representations
    Patent number: 8407767
    Abstract: A system and method for provisioning digital identity representations (“DIRs”) uses various techniques and structures to ease administration, increase accuracy, and decrease inconsistencies of a digital-identity provisioning system. Various methods are provided for creating new DIRs, requesting DIRs, notifying principals of available DIRs, and approving issuance of new DIRs.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: March 26, 2013
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Colin H. Brace, Derek T. Del Conte, Arun K. Nanda, Stuart L. S. Kwan, Rashmi Raj, Vijayavani Nori
  • Provisioning of digital identity representations
    Patent number: 8087072
    Abstract: A system and method for provisioning digital identity representations (“DIRs”) uses various techniques and structures to ease administration, increase accuracy, and decrease inconsistencies of a digital-identity provisioning system. A system is provided using a common identity data store for both DIR issuance and identity token issuance, decreasing synchronization issues. Various methods are provided for creating new DIRs, notifying principals of available DIRs, and approving issuance of new DIRs.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: December 27, 2011
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Colin H. Brace, Derek T. Del Conte, Kim Cameron, Arun K. Nanda, Hervey O. Wilson, Stuart L. S. Kwan, Rashmi Raj, Vijayavani Nori
  • Retail transactions involving digital content in a digital rights management (DRM) system
    Patent number: 7925591
    Abstract: A retailer facilitates issuance of a digital license from a licensor to a customer for a corresponding piece of digital content. The retailer receives payment for the license from the customer, where the payment is to be shared with the licensor in a pre-determined manner. The retailer also receives customer-based information from the customer. The retailer then composes an actual license request including the obtained customer-based information, and including retailer-based information identifying the retailer to the licensor and acknowledging to the licensor that the retailer owes a portion of the received payment to the licensor. Thereafter, the retailer forwards the actual license request to the licensor. The licensor notes based on the retailer-based information in the actual license request that the retailer identified thereby owes the licensor at least a portion of the forwarded payment.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: April 12, 2011
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Krishnamurthy Ganesan, Jeffrey R. McKune
  • Digests to Identify Elements in a Signature Process
    Publication number: 20110078212
    Abstract: A signature system with a mechanism to identify element(s) of a signed document includes a sender having a signature module with a digest generator. The digest generator generates digests for identifying selected elements of the document. The resulting “identifying” digests are then used in generating a signature in which the sender signs the digests rather than the original elements. The receiver can then process the signature and use these digests to distinguish between elements, as needed.
    Type: Application
    Filed: December 6, 2010
    Publication date: March 31, 2011
    Applicant: MICROSOFT CORPORATION
    Inventors: Vijay K. Gajjala, Giovanni M. Della-Libera, V.B. Balayoghan, Tomasz Janczuk
  • Digests to identify elements in a signature process
    Patent number: 7873831
    Abstract: A signature system with a mechanism to identify element(s) of a signed document includes a sender having a signature module with a digest generator. The digest generator generates digests for identifying selected elements of the document. The resulting “identifying” digests are then used in generating a signature in which the sender signs the digests rather than the original elements. The receiver can then process the signature and use these digests to distinguish between elements, as needed.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 18, 2011
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Giovanni M. Della-Libera, Vaithialingam B. Balayoghan, Tomasz Janczuk
  • Security scopes and profiles
    Patent number: 7716728
    Abstract: A security system with a mechanism to identify types of information that need to be secured and another mechanism to specify how the types are to be secured. The system includes a sender having an application and a receiver having a security module and one or more datastores to store information related to types of information that need to be secured (e.g. “scopes”), how information is to be secured (e.g., “profiles”), and a mapping (e.g., “bindings”) between the scopes and profiles. Scopes can be implemented by application developers. Profiles can be implemented by application deployers and/or administrators. The security module determines which scope is appropriate for the message, and then determines the profile that is mapped to the scope. The security module can then make an access control decision using the profile.
    Type: Grant
    Filed: February 16, 2004
    Date of Patent: May 11, 2010
    Assignee: Microsoft Corproation
    Inventors: Giovanni M. Della-Libera, Vijay K. Gajjala, Tomasz Janczuk, John R. Lambert
  • CLAIM GENERATION FOR TESTING CLAIMS-BASED APPLICATIONS
    Publication number: 20100042656
    Abstract: The development-time testing of claims based applications. After a claims-based application is deployed, as the application runs, the application will encounter a number of claims, and will perform appropriate processing that depends on the application's trust in the veracity of the those claims. However, at development time, access to claims providers is either limited or non-existent. The principles described herein permit access to an environment at development-time in which the claims-based application will encounter any number and variety of claims. Accordingly, the application may be evaluated to verify proper operation in response to particular claims at development time, and any deviations in expected performance may be addressed prior to deployment.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 18, 2010
    Applicant: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Siddharth Sathish Shenoy
  • Generic security claim processing model
    Patent number: 7640573
    Abstract: A system for processing multiple types of security schemes includes a server having a claims engine that extracts claim(s) from security token(s) and maps extracted claims to other claims. The term claim as used in this context is a statement about a token's subject. The claims engine can extract claim(s) from one or more different types of security tokens corresponding to the multiple security schemes. These extracted claim(s) can then be selectively mapped to other claims using mapping information that is accessible to the server. The security decision can then be based on the extracted and/or derived claim(s) rather than tokens. This system can thereby support multiple security schemes and simplify the security process for the user.
    Type: Grant
    Filed: February 16, 2004
    Date of Patent: December 29, 2009
    Assignee: Microsoft Corporation
    Inventors: Giovanni M. Della-Libera, Vijay K. Gajjala, Tomasz Janczuk, John R. Lambert, Elliot Waingold
  • AUTOMATING TRUST ESTABLISHMENT AND TRUST MANAGEMENT FOR IDENTITY FEDERATION
    Publication number: 20090307744
    Abstract: A federated identity verification system includes an identity provider that provides security tokens ultimately to one or more relying parties for access by the client to services at a relying party. Specifically, the relying party can validate the security token from an identity provider (whether directly or via a client) when verifying that the received security token conforms to security configuration data previously exchanged with the identity provider. To establish the trust relationship, the identity provider and one or more relying parties exchange security configuration information through an agreed-to communication channel. The security configuration information indicates the settings that the other party needs to use for establishing, maintaining, and/or monitoring the trust relationship. The communication channel allows both parties to flexibly and continually synchronize changes to security configurations, and thus maintain, change, or end the trust relationship automatically, as desired.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Arun K. Nanda, Matthew F. Steele, Danver W. Hartop, Sriram Vasudevan, Edward P. Johns, Colin H. Brace, Vijay K. Gajjala
  • SELECTIVELY PROVISIONING CLIENTS WITH DIGITAL IDENTITY REPRESENTATIONS
    Publication number: 20090217362
    Abstract: A server provisions a client with digital identity representations such as information cards. A provisioning request to the server includes filtering parameters. The server assembles a provisioning response containing cards that satisfy the filtering parameters, and transmits the response to a client, possibly by way of a proxy. The provisioning response may include provisioning state information to help a server determine in subsequent exchanges which cards are already present on the client. A client may keep track the source of information cards and discard cards which a server has discarded. A proxy may make the provisioning request on behalf of a client, providing the server with the proxy's own authentication and with a copy of the request from the client to the proxy.
    Type: Application
    Filed: April 29, 2009
    Publication date: August 27, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Arun K. Nanda, Hervey Wilson, Dan Guberman, Vijay K. Gajjala, Raman Chikkamagalur, Oren Melzer
  • Interface infrastructure for creating and interacting with web services
    Patent number: 7512957
    Abstract: A web services namespace pertains to an infrastructure for enabling creation of a wide variety of applications. The infrastructure provides a foundation for building message-based applications of various scale and complexity. The infrastructure or framework provides APIs for basic messaging, secure messaging, reliable messaging and transacted messaging. In some embodiments, the associated APIs are factored into a hierarchy of namespaces in a manner that balances utility, usability, extensibility and versionability.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: March 31, 2009
    Assignee: Microsoft Corporation
    Inventors: Shy Cohen, Geary L. Eppley, Douglas M. Purdy, James E. Johnson, Stephen J. Millet, Stephen T. Swartz, Vijay K. Gajjala, Aaron Abraham Stern, Alexander Martin DeJarnatt, Alfred M. Lee, IV, Anand Rjagopalan, Anastasios Kasiolas, Chaitanya D. Upadhyay, Christopher G. Kaler, Craig Andrew Critchley, David Edwin Levin, David Owen Driver, David Wortendyke, Douglas A. Walter, Elliot Lee Waingold, Erik Bo Christensen, Erin P. Honeycutt, Eugene Shvets, Evgeny Osovetsky, Giovanni M. Della-Libera, Jesus Ruiz-Scougall, John David Doty, Jonathan T. Wheeler, Kapil Gupta, Kenneth David Wolf, Krishnan Srinivasan, Lance E. Olson, Matthew Thomas Tavis, Mauro Ottaviani, Max Attar Feingold, Michael James Coulson, Michael Jon Marucheck, Michael Steven Vernal, Michael Thomas Dice, Mohamed-Hany Essam Ramadan, Mohammad Makarechian, Natasha Harish Jethanandani, Richard Dievendorff, Richard Douglas Hill, Ryan Thomas Sturgell, Saurab Nog, Scott Christopher Seely, Serge Sverdlov, Siddhartha Puri, Sowmyanarayanan K. Srinivasan, Stefan Batres, Stefan Harrington Pharies, Tirunelveli Vishwanath, Tomasz Janczuk, Uday S. Hegde, Umesh Madan, Vaithialingam B. Balayogan, Vipul Arunkant Modi, Yaniv Pessach, Yasser Shohoud
  • PROVISIONING OF DIGITAL IDENTITY REPRESENTATIONS
    Publication number: 20080178271
    Abstract: A system and method for provisioning digital identity representations (“DIRs”) uses various techniques and structures to ease administration, increase accuracy, and decrease inconsistencies of a digital-identity provisioning system. A system is provided using a common identity data store for both DIR issuance and identity token issuance, decreasing synchronization issues. Various methods are provided for creating new DIRs, notifying principals of available DIRs, and approving issuance of new DIRs.
    Type: Application
    Filed: September 17, 2007
    Publication date: July 24, 2008
    Applicant: Microsoft Corporation
    Inventors: Vijay K Gajjala, Colin H. Brace, Derek T. Del Conte, Kim Cameron, Arun K. Nanda, Hervey O. Wilson, Stuart L.S. Kwan, Rashmi Raj, Vijayavani Nori
  • PROVISIONING OF DIGITAL IDENTITY REPRESENTATIONS
    Publication number: 20080178272
    Abstract: A system and method for provisioning digital identity representations (“DIRs”) uses various techniques and structures to ease administration, increase accuracy, and decrease inconsistencies of a digital-identity provisioning system. Various methods are provided for creating new DIRs, requesting DIRs, notifying principals of available DIRs, and approving issuance of new DIRs.
    Type: Application
    Filed: September 17, 2007
    Publication date: July 24, 2008
    Applicant: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Colin H. Brace, Derek T. Del Conte, Arun K. Nanda, Stuart L.S. Kwan, Rashmi Raj, Vijayavani Nori
  • Content revocation and license modification in a digital rights management (DRM) system on a computing device
    Patent number: 7305366
    Abstract: Content revocation is achieved by disabling licenses issued to a computing device for the content. A content revocation is delivered within a license to the computing device. Upon license storage the content revocation is recognized, validated, and stored in a secure state store under the public key of the content server (PU-CS) that issued the content. Each license has a (PU-CS) therein, and each license evaluation considers each content revocation stored in the state store and having the same (PU-CS). The license is disabled or otherwise affected based on the considered content revocation. A content revocation is one form of a license modification that may be delivered within a license.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: December 4, 2007
    Assignee: Microsoft Corporation
    Inventors: Charlie David Chase, Jr., Krishnamurthy Ganesan, Philip J. Lafornara, Jeffrey Richard McKune, Clifford Paul Strom, Vijay K. Gajjala
  • Content revocation and license modification in a digital rights management (DRM) system on a computing device
    Patent number: 7110985
    Abstract: Content revocation is achieved by disabling licenses issued to a computing device for the content. A content revocation is delivered within a license to the computing device. Upon license storage the content revocation is recognized, validated, and stored in a secure state store under the public key of the content server (PU-CS) that issued the content. Each license has a (PU-CS) therein, and each license evaluation considers each content revocation stored in the state store and having the same (PU-CS). The license is disabled or otherwise affected based on the considered content revocation. A content revocation is one form of a license modification that may be delivered within a license.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: September 19, 2006
    Assignee: Microsoft Corporation
    Inventors: Charlie David Chase, Jr., Krishnamurthy Ganesan, Philip J. Lafornara, Jeffrey Richard McKune, Clifford Paul Strom, Vijay K. Gajjala
  • Content revocation and license modification in a digital rights management (DRM) system on a computing device
    Patent number: 7080043
    Abstract: Content revocation is achieved by disabling licenses issued to a computing device for the content. A content revocation is delivered within a license to the computing device. Upon license storage the content revocation is recognized, validated, and stored in a secure state store under the public key of the content server (PU-CS) that issued the content. Each license has a (PU-CS) therein, and each license evaluation considers each content revocation stored in the state store and having the same (PU-CS). The license is disabled or otherwise affected based on the considered content revocation. A content revocation is one form of a license modification that may be delivered within a license.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: July 18, 2006
    Assignee: Microsoft Corporation
    Inventors: Charlie David Chase, Jr., Krishnamurthy Ganesan, Philip J. Lafornara, Jeffrey Richard McKune, Clifford Paul Strom, Vijay K. Gajjala
  • Retail transactions involving digital content in a digital rights management (DRM) system
    Patent number: 7039615
    Abstract: A retailer facilitates issuance of a digital license from a licensor to a customer for a corresponding piece of digital content. The retailer receives payment for the license from the customer, where the payment is to be shared with the licensor in a pre-determined manner. The retailer also receives customer-based information from the customer. The retailer then composes an actual license request including the obtained customer-based information, and including retailer-based information identifying the retailer to the licensor and acknowledging to the licensor that the retailer owes a portion of the received payment to the licensor. Thereafter, the retailer forwards the actual license request to the licensor. The licensor notes based on the retailer-based information in the actual license request that the retailer identified thereby owes the licensor at least a portion of the forwarded payment.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: May 2, 2006
    Assignee: Microsoft Corporation
    Inventors: Vijay K. Gajjala, Krishnamurthy Ganesan, Jeffrey R. McKune
  • Content revocation and license modification in a digital rights management (DRM) system on a computing device
    Publication number: 20030187801
    Abstract: Content revocation is achieved by disabling licenses issued to a computing device for the content. A content revocation is delivered within a license to the computing device. Upon license storage the content revocation is recognized, validated, and stored in a secure state store under the public key of the content server (PU-CS) that issued the content. Each license has a (PU-CS) therein, and each license evaluation considers each content revocation stored in the state store and having the same (PU-CS). The license is disabled or otherwise affected based on the considered content revocation. A content revocation is one form of a license modification that may be delivered within a license.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 2, 2003
    Applicant: Microsoft Corporation
    Inventors: Charlie David Chase, Krishnamurthy Ganesan, Philip J. Lafornara, Jeffrey Richard McKune, Clifford Paul Strom, Vijay K. Gajjala