Encryption apparatus

Details Encryption apparatus Encryption apparatus

2007-05-29

2007-05-29

Peeso, Thomas R. (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S166000, C713S168000, C713S182000

Reexamination Certificate

active

10618734

ABSTRACT:
An encryption apparatus performs high-speed and secure signature creation and verification. In the encryption apparatus, at least a shift register group composed of shift registers for retaining values for arithmetic operations for generating a hash value for use in public-key-cryptosystem encryption processing, and shift registers for capturing a resultant hash value, and a shift register group composed of shift registers for retaining values for arithmetic operations for performing public-key-cryptosystem encryption processing and shift registers for capturing an arithmetic result are used for each other. Hardware components to be operated are changed in a time-sharing manner in accordance with a processing mode.

REFERENCES:
patent: 4399323 (1983-08-01), Henry
patent: 5008818 (1991-04-01), Bocast
patent: 5463690 (1995-10-01), Crandall

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