Electronic authority server

Details Electronic authority server Electronic authority server

1998-03-19

2000-06-06

Peeso, Thomas R.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Protection at a particular protocol layer

713151, 713155, 380255, 380258, G09C 308

Patent

active

060732423

ABSTRACT:
An electronic communication authority server that provides centralized key management, implementation of role-based enterprise policies and workflow and projection of corporate authorities over trusted networks. The authority server includes a key database that associates keys, signatures and indicators of corporate authority (such as letterhead) with particular corporate roles. There can be multiple roles or a single role (e.g., employee) for each authority server. Users associated with one or more roles are permitted by the authority server to exercise authority or include the indicators of authority in their communications. The authority server also encrypts/decrypts and signs/verifies communications from/to a user using the keys and signatures associated with the role being exercised by the user for that communication. The authority server permits roles to be delegated or transferred, which facilitates the execution by the authority server of role-dependent workflow procedures. In another embodiment, keys are not associated with individual roles but with servers and/or groups of users. In this embodiment a server processes a request from one of its users in accordance with the role-based policies it embodies and then, if necessary, indicates the identity of the requesting user in the end product of the request, which it then signs using its own key and encrypts with appropriate destination keys.

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"Applied Cryptography: Protocols, Algorithms, and Source Code in C", Bruce Schneier, Chapters 17-22 and 24, 1996, ISBN 0471-117099.
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"Capability- and Object-Based System Concepts", Henry Levy, 18 pages, 1984, Digital Press/Digital Equipment Corporation, Bedford MA.

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