Number | Name | Date | Kind |
---|---|---|---|
3958081 | Ehrsam et al. | May 1976 | |
3962539 | Ehrsam et al. | Jun 1976 | |
4612413 | Robert et al. | Sep 1986 | |
4805216 | Greenberg | Feb 1989 | |
4888800 | Marshall et al. | Dec 1989 | |
4926478 | Greenberg | May 1990 | |
4941176 | Matyas et al. | Jul 1990 | |
5003597 | Merkle | Mar 1991 | |
5008935 | Roberts | Apr 1991 | |
5081678 | Kaufman et al. | Jan 1992 |
Entry |
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IBM TDB vol. 34 No. 12 May 1992 pp. 335-338 "Strong Cryptographic Coupling the Leftmost and Rightmost 64 Bits of Cryptographic Key". |