Two-channel challenge-response authentication method in random partial shared secret recognition system
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United States of America Patent
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Aug 23, 2011
Grant Date -
Apr 24, 2008
app pub date -
Oct 24, 2006
filing date -
Oct 24, 2006
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Abstract
Random partial shared secret recognition is combined with using more than one communication channel between server-side resources and two logical or physical client-side data processing machines. After a first security tier, a first communication channel is opened to a first data processing machine on the client side. The session proceeds by delivering an authentication challenge, identifying a random subset of an authentication credential, to a second data processing machine on the client side using a second communication channel. Next, the user enters an authentication response in the first data processing machine, based on a random subset of the authentication credential. The authentication response is returned to the server side on the first communication channel for matching. The authentication credential can be a one-session-only credential delivered to the user for one session, or a static credential used many times.
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