Data processing: financial – business practice – management – or co – Business processing using cryptography – Secure transaction
Reexamination Certificate
2006-07-18
2006-07-18
Hewitt, II, Calvin Loyd (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Secure transaction
C705S026640, C705S050000
Reexamination Certificate
active
07080046
ABSTRACT:
A method is disclosed for amortizing the authentication overhead of data transmissions. The method comprises establishing a first secure transmission of data between a transmitter and a receiver by transmitting at least one token to the receiver during the first secure transmission. There may be any number of senders and receivers, and any receivers may be a sender and vice versa. The method also comprises establishing at least one additional transmission of data between the sender and the receiver and transmitting the data and at least one token during the at least one additional transmission. In addition, the method compares the at least one token transmitted during the at least one additional transmission to the token transmitted during the first secure transmission to guarantee the authenticity of that at least one additional transmission.The method may also include transmitting a preselected number of tokens during the first secure transmission. The number of additional transmissions may or may not correspond to the preselected number of tokens. The at least one additional transmission may be conducted over an unsecure connection using open communication. The first secure transmission may be protected or encrypted.
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“PC Dynamics Windows Security System Aug. 5, 1996”, Newsbytes News Network, disclose tokens for authenticating the identity of a user.
“Applied Cryptography” second edition, Schneier, 1996, Wiley and Sons.
Chen Jack L.
Rezvani Babak
Hewitt II Calvin Loyd
Pollack Grant E.
Pollack P.C.
Xanboo Inc.
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