Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1987-08-24
1989-10-24
Cangialosi, Salvatore
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 30, 380 46, H04L 902, H04K 100
Patent
active
048767166
ABSTRACT:
A key distribution method and system for distributing a key over an insecure communication channel between first and second systems. Both first and second systems generate respective random numbers, calculate key distribution codes based on that random number, public information and information secret to the respective systems, and transmits the distribution codes to the other system. The same key is generated by both systems based on public information, the locally generated random number and the received key distribution codes. Alternatively, the systems may exclude the secret information from the key distribution codes but generate and transmit identification codes based on the secret information, public information and the locally generated random numbers. The received key distribution and identification codes are subjected to a known transformation and compared to known identification of the transmitting system.
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Cangialosi Salvatore
NEC Corporation
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