Cryptography – Cryptanalysis
Patent
1996-03-28
1998-06-30
Gregory, Bernarr E.
Cryptography
Cryptanalysis
380 23, 380 25, 380 49, 380 50, 380 9, H04L 900
Patent
active
057745447
ABSTRACT:
A method and apparatus for encrypting and decrypting a microprocessor serial number. First and second encryption keys and a serial number are provided in microprocessor machine specific registers. The serial number is encrypted using the first key. The encrypted serial number is encrypted using the second key. The first encryption key may be encrypted along with the serial number using the second key. The double encrypted serial number is then stored in memory provided for that purpose.
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Lee Sherman
MacDonald James R.
Wisor Michael T.
Advanced Micro Devices , Inc.
Gregory Bernarr E.
Kivlin B. Noel
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