This is a continuation of application Ser. No. 07/728,633, filed on Jul. 11, 1991, entitled APPARATUS AND METHOD FOR PROVIDING MULTI-LEVEL SECURITY FOR COMMUNICATION AMONG COMPUTERS AND TERMINALS ON A NETWORK, and now abandoned.
Number | Name | Date | Kind |
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4694492 | Wirstrom et al. | Sep 1987 | |
4799153 | Hann et al. | Jan 1989 | |
4962449 | Schlesinger | Oct 1990 | |
5056140 | Kimbell | Oct 1991 | |
5113499 | Ankney et al. | May 1992 | |
5163147 | Orita | Nov 1992 | |
5283828 | Saunders et al. | Feb 1994 |
Entry |
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Lu et al, "A Model for Multilevel Security in Computer Networks", IEEE, Mar. 1988, pp. 1095-1104. |
Network Communications (OSI Model); Jan Watts, PC-Computing, v4, No. 1, p. 164 (2); Jan. 1991. |
Microsoft 05-2 to Conform to Posix, C2 Security Level; Scott Palmer, Fed. Comp. Week; v3, No. 15, p. 6(1); Apr. 10, 1989 (abstract). |
Security Through Software (Unix System V/MLS Multi-Level Security O/S; Bob Mitze, Exe, v4, No. 6, p. 53 (1); Nov., 1989. |
Number | Date | Country | |
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Parent | 728633 | Jul 1991 |