Patents by Inventor Thumparthy Viswanatha Rao

Thumparthy Viswanatha Rao 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).

  • Authentication system executing an elliptic curve digital signature cryptographic process
    Patent number: 7853012
    Abstract: An authentication system and a method for signing data are disclosed. The system uses a hardware software partitioned approach. In its implementation the system of the invention compares favourably with performance and other parameters with a complete hardware or full software implementation. Particularly, advantageously there is a reduced gate count. Also as disclosed in the invention the system makes it difficult for hackers to attack the system using simple power analysis.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: December 14, 2010
    Assignee: Tata Consultancy Services, Ltd.
    Inventors: Aravamuthan Sarangarajan, Thumparthy Viswanatha Rao, Rajiah Murugesh, Narasimhachar Srinidhi, Gundeboina Sreenaiah