International cryptography framework

Details International cryptography framework International cryptography framework

1995-03-08

1997-07-22

Cain, David C.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 4, 380 52, 235380, H04K 100

Patent

active

056510683

ABSTRACT:
A cryptographic framework consists of four basic service elements that include a national flag card, a cryptographic unit, a host system, and a network security server. Three of the four service elements have a fundamentally hierarchical relationship. The National Flag Card (NFC) is installed into the Cryptographic Unit (CU) which, in turn, is installed into a Host System (HS). Cryptographic functions on the Host System cannot be executed without a Cryptographic Unit, which itself requires the presence of a valid National Flag Card before it's services are available. The fourth service element, a Network Security Server (NSS), can provide a range of different security services including verification of the other three service elements. The framework addresses national policies governing cryptography, where such policies can be independently developed and maintained using a such a framework. Furthermore, the common service elements provide the necessary focus for establishing interoperability while reconciling these different National policies.

REFERENCES:
patent: 5164988 (1992-11-01), Matyas et al.
Dorothy E. Denning, et al., "Key Escrowing Today" article, 09/1994, vol. 32, No. 9, IEEE Communications Magazine, pp. 58-68.
Ronald Ferreira, TRT,CTI Philips France, "The Practical Application of State of the Art Security in Real Environments" article, pp. 334-355.

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