Patent ID: 8060918

Claim:
A method for verifying an identity of a purported user, comprising: providing a first key and a second key to a user; providing a first system and a second system different from the first system with a management master ID of the user; saving the first key and the management master ID but not the second key at the first system; saving the second key and the management master ID but not the first key at the second system; and after the first key and second key providing and savings steps: transmitting to the first system from a purported user a purported first key but not a purported second key; receiving at the first system the purported first key from the purported user; comparing at the first system the purported first key to the first key; confirming at the first system that the purported first key matches the first key; if matching of the purported first key with the first key is confirmed, issuing at the first system a one-time ID associated with the purported user to the purported user; associating the one-time ID with the management master ID of the user at the first system; transmitting the one-time ID associated with the management master ID of the user from the first system to the second system; saving the one-time ID associated with the management master ID of the user at the second system; transmitting to the second system from the purported user a purported second key and a purported one-time ID but not the purported first key; receiving at the second system the purported second key and the purported one-time ID from the purported user; comparing at the second system the purported second key to the second key; comparing at the second system the purported one-time ID to the one-time ID; confirming at the second system that purported second key matches the second key; confirming at the second system that the purported one-time ID matches the one-time ID; and if matching of both the purported second key with the second key and the purported one-time ID with the one-time ID is confirmed, confirming that the purported user is the user.