Digital signature system and apparatus

Details Digital signature system and apparatus Digital signature system and apparatus

1978-01-04

1980-06-03

Birmiel, Howard A.

Telegraphy

Systems

Printing

340149R, H04L 900

Patent

active

042063159

ABSTRACT:
A digital signature machine provides a simplified method of forming and verifying a signature that is appended to a digital message. A sender transmits a signature with the usual signature keys and with validation table entries that correspond to the unsent keys and with the compressed encoding of the next validation table. The receiver uses the compressed encoding of the next validation table to form validation table entries from the signature keys so that the receiver has a full validation table. This validation table is compressed and compared with the compressed encoding which was received from the sender in a preceding message.

REFERENCES:
patent: 3790957 (1974-02-01), Dukes et al.
patent: 3996449 (1976-12-01), Attanasio et al.
"New Directions in Cryptography," Diffie et al., IEEE Transactions on Information Theory, IT-22, No. 6, 1976, pp. 644-654.
"Digital Signature for Identifying Message and Sender," IBM Technical Disclosure Bulletin, Matyas, Disclosure P08-76-0407.

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