Natural input encryption and method of use

Details Natural input encryption and method of use Natural input encryption and method of use

1994-08-22

1996-03-12

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 4, 380 49, H04K 100

Patent

active

054992966

ABSTRACT:
Secure devices (e.g., a cryptophone, a cryptofax, a computer or other such electronic device) have an encryptor and a digitizer, the digitizer for receiving an input and generating an output supplied to the encryptor. According to the invention, the encryptor and the digitizer are coupled either physically, logically or through non-tamperable software to guarantee that a given ciphertext is the encryption, generated by the encryptor, of an output generated by the digitizer.

REFERENCES:
patent: 5222138 (1993-06-01), Balabon et al.
patent: 5239557 (1993-08-01), Dent
patent: 5276737 (1994-01-01), Micali
patent: 5293633 (1994-03-01), Robbins
patent: 5315638 (1994-05-01), Micali
"Escrowed Encryption Standard (EES)" FIPS Pub 185 Feb. 9, 1994.

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