Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-04-03
2007-04-03
Barron, Gilberto (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S176000, C705S080000
Reexamination Certificate
active
10312164
ABSTRACT:
A method and system for digitally signing an electronic contract document. An electronic communication contains an identifier, a message, which includes the document, and a digital signature generated with a private key of an asymmetric key pair (247). The identifier may be used to retrieve a corresponding public key (287) and account information pertaining to the sender of the message. The public key may be used to authenticate the sender and the message. A device containing the private key may be used to protect the privacy thereof. The device may also generate a verification status indicator corresponding to verification data input into the device. The indicator may also be used as evidence that the sender of a contract document performed an overt act in causing the electronic communication to be digitally signed. A security profile linked to the public key in a secure database indicates security characteristics of the device.
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Wheeler Anne Mcafree
Wheeler Lynn Henry
Barron Gilberto
First Data Corporation
Morris Manning & Martin LLP
Nalven Andrew L
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