Secure login using augmented single factor split key asymmetric cryptography
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United States of America Patent
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Jun 8, 2010
Grant Date -
Aug 9, 2007
app pub date -
May 31, 2006
filing date -
May 31, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A user network station transmits a cookie that includes a user identifier and an augmenting factor transformed with one key of a first asymmetric crypto-key or with a symmetric crypto-key. An authenticating entity network station recovers the augmenting factor from the transformed augmenting factor included in the transmitted cookie, with the other key of the first asymmetric crypto-key or with the symmetric crypto-key, and transmits a customized login page corresponding to the user identifier. The user network station transmits a factor responsive to the transmitted customized login page. The authenticating entity network station generates a first key portion based on the transmitted factor and the recovered augmenting factor, and validates the generated first key portion based on a second key portion of one key of a second asymmetric crypto-key associated with the user and on the other key of the second asymmetric crypto-key, to thereby authenticate the user.
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