The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2010
Filed:
May. 02, 2006
Ravi Ganesan, Half Moon Bay, CA (US);
Ravinderpal Singh Sandhu, Oak Hill, VA (US);
Andrew Paul Cottrell, San Jose, CA (US);
Brett Jason Schoppert, Leesburg, VA (US);
Mihir Bellare, San Diego, CA (US);
Ravi Ganesan, Half Moon Bay, CA (US);
Ravinderpal Singh Sandhu, Oak Hill, VA (US);
Andrew Paul Cottrell, San Jose, CA (US);
Brett Jason Schoppert, Leesburg, VA (US);
Mihir Bellare, San Diego, CA (US);
TriCipher, Inc., Los Gatos, CA (US);
Abstract
To authenticate a user having an associated asymmetric crypto-key having a private/public key pair (D,E) based on a one-time-password, the user partially signs a symmetric session key with the first portion Dof the private key D. The authenticating entity receives the partially signed symmetric session key via the network and completes the signature with the second private key portion Dto recover the symmetric session key. The user also encrypts a one-time-password with the symmetric session key. The authenticating entity also receives the encrypted one-time-password via the network, and decrypts the received encrypted one-time-password with the recovered symmetric session key to authenticate the user.