Patents by Inventor Sragdhara D. Chaudhuri

Sragdhara D. Chaudhuri 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).

  • System and method for providing end to end authentication in a network environment
    Patent number: 7024687
    Abstract: A method for executing end to end authentication in a network environment is provided that includes initiating a communications tunnel with a layer two tunnel protocol (L2TP) network server (LNS) and communicating an activate context request that includes an authentication protocol in a protocol configuration option (PCO) field, the activate context request being received by a gateway general packet radio service (GPRS) support node (GGSN) that initiates a link control protocol (LCP) negotiation with the LNS, the GGSN being operable to communicate an activate context response that may be received by the mobile terminal. An authentication response may be calculated by using a secret value and a challenge value which is provided by the GGSN, the authentication response being used to establish a communication session associated with the mobile terminal.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: April 4, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Sragdhara D. Chaudhuri, Aseem Sethi
  • System and method for providing end to end authentication in a network environment
    Publication number: 20040236947
    Abstract: A method for executing end to end authentication in a network environment is provided that includes initiating a communications tunnel with a layer two tunnel protocol (L2TP) network server (LNS) and communicating an activate context request that includes an authentication protocol in a protocol configuration option (PCO) field, the activate context request being received by a gateway general packet radio service (GPRS) support node (GGSN) that initiates a link control protocol (LCP) negotiation with the LNS, the GGSN being operable to communicate an activate context response that may be received by the mobile terminal. An authentication response may be calculated by using a secret value and a challenge value which is provided by the GGSN, the authentication response being used to establish a communication session associated with the mobile terminal.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 25, 2004
    Applicant: Cisco Technology, Inc.
    Inventors: Sragdhara D. Chaudhuri, Aseem Sethi