Forward secure one-time authentication tokens with embedded time hints
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United States of America Patent
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Jan 16, 2018
Grant Date -
N/A
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2013
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Abstract
Forward-secure one-time authentication tokens are provided with embedded time hints. A token generates a passcode for presentation to an authentication server by determining a current state of the token; generating a user authentication passcode based on the current state, wherein the generated user authentication passcode comprises an embedded time hint; and communicating the generated user authentication passcode to the authentication server. The passcode may be generated with the embedded time hint, for example, each time a user authentication passcode is generated or upon demand when a user authentication passcode is generated. A server processes a user authentication passcode by receiving the user authentication passcode, wherein the received user authentication passcode comprises an embedded time hint; and determining a time interval to search for another user authentication passcode based on the embedded time hint.
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