Number | Date | Country | Kind |
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10-073656 | Mar 1998 | JP |
Number | Name | Date | Kind |
---|---|---|---|
4926480 | Chaum | May 1990 | A |
5231666 | Matyas | Jul 1993 | A |
5237614 | Weiss | Aug 1993 | A |
5297207 | Degele | Mar 1994 | A |
5432852 | Leighton et al. | Jul 1995 | A |
5594794 | Eyer et al. | Jan 1997 | A |
5668877 | Aziz | Sep 1997 | A |
Entry |
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Schneier, Bruce, Applied Cryptography, 1996, John Wiley & Sons, Inc., Second Edition, p. 53. |