Mutually authenticated secure key exchange (MASKE)

Details Mutually authenticated secure key exchange (MASKE) Mutually authenticated secure key exchange (MASKE)

2001-07-30

2008-09-09

Moise, Emmanuel L (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S169000, C380S044000, C380S283000

Reexamination Certificate

active

07424615

ABSTRACT:
The invention provides a cryptographic method which includes receiving at a first entity a second public key MA. At least one of a first session key KBand a first secret SBmay be generated based on the second public key MA. A first random nonce NBmay be generated which may be encrypted with at least one of the first session key KBand the first secret SBto obtain an encrypted random nonce. The encrypted random nonce may be transmitted from the first entity. In response to transmitting the encrypted random nonce, the first computer may receive a data signal containing a modification of the first random nonce NB+1. If the modification of the first random nonce NB+1was correctly performed, then at least one of (i) opening a communication link at the first computer, and (ii) generating a first initialization vector IBis performed.

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