Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1994-12-20
1996-03-12
Cain, David C.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 21, 380 25, H04K 100
Patent
active
054992974
ABSTRACT:
A system and method for identifying and authenticating users and for controlling the access of those users to privileged instructions within a data enclave. The data enclave includes a plurality of controllers, such as workstations, connected over a network to a security server; each data enclave is assigned a cryptographic key. A personal keying device having an encrypted user unique identifier is assigned to each user; provisions are made for temporarily connecting the personal keying device to one of the controllers and for transmitting an encrypted message, including the user unique identifier and the last countersign, to the security server to authenticate the user and establish his/her access rights. A mechanism for updating the countersign is provided so that trusted path communications can be established between the user and the security server.
REFERENCES:
patent: 4227253 (1980-10-01), Ehrsam et al.
patent: 4238854 (1980-12-01), Ehrsam et al.
patent: 4264782 (1981-04-01), Konheim
patent: 4629872 (1986-12-01), Hallberg
patent: 4652698 (1987-03-01), Hale et al.
patent: 4713753 (1987-12-01), Boebert et al.
patent: 4746788 (1988-05-01), Kawana
patent: 4825050 (1989-04-01), Griffith et al.
patent: 4888801 (1989-12-01), Foster et al.
patent: 4980913 (1990-12-01), Skret
patent: 5018096 (1991-05-01), Aoyama
patent: 5046094 (1991-09-01), Kawamura et al.
patent: 5052040 (1991-09-01), Preston et al.
patent: 5065429 (1991-11-01), Lang
patent: 5253295 (1993-10-01), Saada et al.
patent: 5272754 (1993-12-01), Boerbert
patent: 5276735 (1994-01-01), Boebert
W. E. Boebert et al., "Secure Computing: The Secure Ada Target Approach," Lock Selected Papers, Secure Computing Technology Corp., Arden Hills, Minnesota (1985-1988).
W. E. Boebert et al., "Secure Ada Target: Issues, System Design and Verification," Proceedings of the Symposium on Security and Privacy, Oakland, Calif., (Apr. 22-24, 1985).
Thomas Kibalo et al., "Using Embedded COMSEC: An Integrator's Viewpoint," Proceedings of the 1st AFCEA Mid-Atlantic Intelligence Symposium (1986).
Cain David C.
Secure Computing Corporation
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