Number | Date | Country | Kind |
---|---|---|---|
8102268 | Apr 1981 | SEX |
Number | Name | Date | Kind |
---|---|---|---|
4186871 | Anderson et al. | Feb 1980 | |
4193131 | Lennon et al. | Mar 1980 | |
4206315 | Matyas et al. | Jun 1980 | |
4264782 | Konheim | Apr 1981 | |
4302810 | Bourcius et al. | Nov 1981 | |
4326098 | Bouricius et al. | Apr 1982 | |
4393269 | Konheim et al. | Jun 1983 | |
4408203 | Campbell | Oct 1983 | |
4423287 | Zeidler | Dec 1983 | |
4471216 | Herve | Sep 1984 | |
4578532 | Markwitz | Mar 1986 | |
4649233 | Bass et al. | Mar 1987 | |
4652698 | Hale et al. | Mar 1987 |
Number | Date | Country |
---|---|---|
0021401 | Jul 1981 | EPX |
2047506 | Nov 1980 | GBX |
Entry |
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NBS Special Publication 500-54 (10/79), Smid Key Notarization System for Computer Networks. |
Cryptography-A Primer, Wiley Interscience Pub., N.Y., (1981), Konheim (II), pp. 331-337. |