Decryption device with variable clock

Details Decryption device with variable clock Decryption device with variable clock

1989-08-11

1991-03-19

Tarcza, Thomas H.

Cryptography

Key management

Having particular key generator

380 49, 375110, H04L 902

Patent

active

050017560

ABSTRACT:
A decryption device wherein an encryption/decryption module can be operated at various clock speeds, and wherein an associated processor controls these clock speeds depending upon the moment to moment processing interrelationship between the encryption/decryption module and the processor. In particular, when loading a new key into the encryption module, or when utilizing the encryption module to decrypt an encrypted new key, the processor alters the usual clock rate for the encryption module.

REFERENCES:
patent: 3404233 (1968-10-01), Mason et al.
patent: 4229699 (1980-10-01), Frissell
patent: 4242755 (1980-12-01), Gauzan
patent: 4763357 (1988-08-01), Barr

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