Method and system for authentication of a user
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United States of America Patent
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Apr 15, 2008
Grant Date -
May 15, 2003
app pub date -
Feb 22, 2002
filing date -
Nov 13, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and system for authentication of a user (302, 402) by an authenticating entity (304, 404). The method including the authenticating entity (304, 404) sending a challenge (310, 410) to the user (302, 402). The user (302, 402) adds a spoiler to the challenge (312, 412) and encrypts (316, 416) the combined spoiler and challenge (314, 414) using a private key of an asymmetric key pair. The user (302, 402) sends the encrypted combined spoiler and challenge to the authenticating entity (304, 404). The authenticating entity (304, 404) ascertains that the returned challenge is the same the original challenge (310, 410) and approves the user (302, 402).
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