Patent ID: 8478989

Claim:
A method to authenticate a user using a secondary site to access a primary site, the method comprising: receiving, via the secondary site, a request for authentication of the user, the request for authentication of the user including user information corresponding to the user; verifying the user information and generating at the primary site a token associated with the user; based on the verifying, generating, using a processor, a first partial token comprising a first segment or portion of the token associated with the user, the first partial token to be transmitted to and stored at the secondary site; and generating a second partial token comprising a second segment or portion of the token to be stored at the primary site without transmission of the second partial token to the secondary site, the second partial token to be stored at the primary site matching the first partial token to be stored at the secondary site to form the token, wherein the first partial token is to be stored at the secondary site without the second partial token, the first partial token to be used to enable the secondary site to perform a task on the primary site on behalf of the user.