05491749 is referenced by 43 patents and cites 13 patents.

A method is described for substantially concurrently performing entity authentication operations and short-lived secret key distribution operations over an insecure communication channel between communication partners, wherein authenticity of communication partners is determined by possession of the long-lived shared secret key. The method includes a number of steps. Data flows are exchanged between the communication partners to define a composite key. At least a portion of the data flows have been encrypted or otherwise masked in a manner which utilizes the long-lived shared secret key. At least one authentication tag is passed between communication partners over the communication channel. The at least one authentication tag is based at least partially upon the composite key. The authentication tag is utilized to determine the authenticity of at least one communication partner.

Title
Method and apparatus for entity authentication and key distribution secure against off-line adversarial attacks
Application Number
8/175881
Publication Number
5491749
Application Date
December 30, 1993
Publication Date
February 13, 1996
Inventor
Phillip W Rogaway
Austin
TX, US
Agent
Andrew J Dillon
Melvin A Hunn
Jeffrey S LaBaw
Assignee
International Business Machines Corporation
NY, US
IPC
H04L 9/08
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