Electronic signature addition method, electronic signature verif

Details Electronic signature addition method, electronic signature verif Electronic signature addition method, electronic signature verif

1997-06-17

1999-06-22

Swann, Tod R.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 20, 380 21, 380 30, 380 4, 382310, 395186, 710102, 710104, H04K 100

Patent

active

059150246

ABSTRACT:
An apparatus for adding an electronic signature to document data includes a delimiter character detector for dividing the input document data into a plurality of divided document data by using as a delimiter a predetermined character appearing in a document represented by the document data, a digest generator and an encrypter for generating an electronic signature based on the divided document data for each divided document data, and a signature-added message generator for generating the divided document data, the electronic signature based on the divided document data, and information for associating the divided document data with the electronic signature.

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Network Security,(1995) pp. 329-353, Charlie Kaufman "Electronic Mail Security".

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