Method and apparatus for generating pairwise cryptographic...

Details Method and apparatus for generating pairwise cryptographic... Method and apparatus for generating pairwise cryptographic...

2007-06-19

2007-06-19

Moazzami, Nasser (Department: 2136)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Having particular address related cryptography

C713S168000, C713S169000, C713S171000, C713S189000, C713S151000, C726S003000, C726S014000, C726S015000, C380S259000, C380S277000, C380S283000

Reexamination Certificate

active

10262814

ABSTRACT:
Group key management techniques are applied to generating pair-wise keys for point-to-point secure communication applications. Nodes participating in a secure communication group each receive a group key and associated policy information. When a first node wishes to establish a secure point-to-point connection to a second node, the first node derives a pairwise key from the group key and policy information, for example, by hashing the group key and information identifying the two nodes. As a result, a pairwise key is generated without exchanging negotiation messages among the two nodes and without expensive asymmetric cryptographic computation approaches.

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