Method and system for key certification

Details Method and system for key certification Method and system for key certification

2007-12-11

2007-12-11

Vu, Kim (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S155000, C713S156000, C713S175000, C726S002000, C726S003000, C726S004000, C726S005000

Reexamination Certificate

active

10373893

ABSTRACT:
A method and system for key certification in a public key infrastructure. The infrastructure has a network formed of a plurality of nodes. Each node has a private and public key pair. The nodes are either or both a certifying node and a certified node. A certifying node provides a digital certificate referring to the public key of a certified node. The digital certificate is signed by the private key of the certifying node. The method includes providing a root public key for a user, the root public key being at a any node in the network chosen by the user, and providing a chain of digital certificates from the node with the root public key across the node network to any other node.

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