Number | Name | Date | Kind |
---|---|---|---|
4996711 | Chaum | Feb 1991 | |
5218637 | Angeband et al. | Jun 1993 | |
5222140 | Beller et al. | Jun 1993 | |
5241599 | Bellovin et al. | Aug 1993 | |
5345506 | Tsubakiyama et al. | Sep 1994 |
Entry |
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"Password Security: A Case History", by R. Morris and K. Thompson, Communications of the ACM, vol. 22 No. 11, pp. 594-597, Nov. 1979. |