Patents by Inventor Viyyokaran Raman Ramachandran

Viyyokaran Raman Ramachandran 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).

  • Cross domain authentication and security services using proxies for HTTP access
    Patent number: 7487539
    Abstract: Two identity spaces form a federation by agreeing to use a secret key to facilitate secure access of resources between them. When one identity space receives a request for a resource from a user in the other identity space, the first identity space checks to see if the resource is protected. If the resource is protected, the first identity space requests that a mediator in the second identity space authenticate the external user. The mediator verifies the external user's authenticity. Once the external user is authenticated, the mediator securely informs the first identity space, using the secret key, that the external user is authenticated to access the resource. The identity space then grants the user access to the resource if the user is allowed access as per the access control policy of the identity space.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: February 3, 2009
    Assignee: Novell, Inc.
    Inventors: Viyyokaran Raman Ramachandran, Dinkar Sitaram, Kshitij Arun Doshi
  • Cross domain authentication and security services using proxies for HTTP access
    Patent number: 7370351
    Abstract: Two identity spaces form a federation by agreeing to use a secret key to facilitate secure access of resources between them. When one identity space receives a request for a resource from a user in the other identity space, the first identity space checks to see if the resource is protected. If the resource is protected, the first identity space requests that a mediator in the second identity space authenticate the external user. The mediator verifies the external user's authenticity. Once the external user is authenticated, the mediator securely informs the first identity space, using the secret key, that the external user is authenticated to access the resource. The identity space then grants the user access to the resource if the user is allowed access as per the access control policy of the identity space.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: May 6, 2008
    Assignee: Novell, Inc.
    Inventors: Viyyokaran Raman Ramachandran, Dinkar Sitaram, Kshitij Arun Doshi