Digests to identify elements in a signature process

Details Digests to identify elements in a signature process Digests to identify elements in a signature process

2011-01-18

2011-01-18

Zand, Kambiz (Department: 2434)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S171000, C713S181000

Reexamination Certificate

active

07873831

ABSTRACT:
A signature system with a mechanism to identify element(s) of a signed document includes a sender having a signature module with a digest generator. The digest generator generates digests for identifying selected elements of the document. The resulting “identifying” digests are then used in generating a signature in which the sender signs the digests rather than the original elements. The receiver can then process the signature and use these digests to distinguish between elements, as needed.

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