Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-06-02
2000-06-20
Gregory, Bernarr E.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
380277, 380 29, 380 30, 380287, 713150, 713151, 713182, 713184, 713189, 713200, 713201, H04L 932, H04L 900
Patent
active
060790210
ABSTRACT:
A computer implemented method provides access to processes and data using strengthened password. During an initialization phase, an access code is stored in a memory of a computer system. The access code is an application of a one-way hash function to a concatenation of a password and a password supplement. The size of the password supplement is a fixed number of bits. During operation of the system, a user enters a password, and the one-way hash function is applied to concatenations of the password and possible values having the size of the password supplement to yield trial access codes. Access is granted when one of the trial access codes is identical to the stored access code.
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Manber, U., "A Simple Scheme to Make Passwords Based on One-Way Functions Much Harder to Crack," Dept. of Computer Science, Univ. of Arizona, Nov. 1994.
Abadi Martin
Lomas Thomas Mark Angus
Needham Roger Michael
Digital Equipment Corporation
Gregory Bernarr E.
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