Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-02-13
2007-02-13
Arani, Taghi T. (Department: 2131)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S166000, C713S176000, C713S182000, C713S183000, C713S184000, C713S185000, C713S186000, C705S067000, C726S002000, C726S005000, C726S008000, C726S009000, C726S010000
Reexamination Certificate
active
10502478
ABSTRACT:
A method of authenticating a user to use a system includes using a provider token to generate a random value. The token generates a derived key based at least in part on a token-provided salt value and a user-provided password. The provider generates a token unlock key based at least in part on the derived key and sends it to the token. First and second challenge data instances are generated by the provider and the token, respectively, and the process is terminated if the challenge data instances are determined not to match. If the challenge data instances are determined to match, then an encrypted data transfer system is established between the token and the provider, and the token unlocks locked private data stored on the token. The user is authenticated for secured use of the system based at least in part on the unlocked private data.
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Butler Roger
Domanque Ersin
Scheidt Edward M.
Tsang Wai
Arani Taghi T.
IP Strategies
Tec Sec, Inc.
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