Method for authenticating the identity of a user of an informati

Details Method for authenticating the identity of a user of an informati Method for authenticating the identity of a user of an informati

1978-05-05

1980-08-19

Boudreau, Leo H.

Boots, shoes, and leggings

178 22, 340149A, G06F 300, H04K 100

Patent

active

042187389

ABSTRACT:
Secure hardware is provided for cryptographically generating a verification pattern which is a function of a potential computer user's identity number, the potential computer user's separately entered password, and a stored test pattern. The test pattern for each authorized computer user is generated at a time when the physical security of the central computer and its data can be assured, such as in a physically guarded environment with no teleprocessing facilities operating. Secure hardware for generating verification patterns during authentication processing and for generating test patterns during the secure run is disclosed which uses a variation of the host computer master key to reduce risk of compromise of total system security. The use of a variant of the host master key prevents system programmers and/or computer operators from compromising the integrity of the authentication data base by, for example, interchanging entries and/or inserting new entries.

REFERENCES:
patent: 3594727 (1971-07-01), Braun
patent: 3624357 (1971-11-01), Wright
patent: 3764742 (1973-10-01), Abbott et al.
patent: 3798359 (1974-03-01), Feistel
patent: 3798605 (1974-03-01), Feistel
patent: 3958081 (1976-05-01), Ehrsam et al.
patent: 3962539 (1976-06-01), Ehrsam et al.
Feistel, "Cryptography and Computer Privacy," Scientific American, vol. 228, No. 5, May 1973, pp. 15-23.
Feistel et al., "Some Cryptographic Tech. for Machine to Machine Data Comm.," Proc. of IEEE, vol. 63, No. 11, Nov. 1975, pp. 1545-1554.
Diffie et al., "New Directions in Cryptography," IEEE Trans. on Information Theory, Nov. 1976, pp. 644-654.

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