Cryptography – Key management – Having particular key generator
Patent
1994-10-12
1998-03-31
Beausoliel, Jr., Robert W.
Cryptography
Key management
Having particular key generator
380 45, 36426081, 3642864, G06F 1100
Patent
active
057348197
ABSTRACT:
A method and apparatus for providing system operation validation is disclosed. The method and apparatus for validation operates within a computer system comprising a central processing unit coupled to a programmable memory, and to a system device. The programmable memory may store programs and instructions executable on the CPU and a non-volatile memory is also provided for access by the CPU. The system operation validation is provided by a chip identifier located within a device memory within the system device, which memory also serves as a chip identifier register. Selected information stored within the non-volatile memory is used, along with the chip identifier, to generate a first encryption code associated with the system device. An encryption key is used to generate a second encryption code associated with the computer system. The first and second encryption codes are matched to provide a first level system operation validation. A second chip identifier is generated, which identifier is associated with the computer system. Both chip identifiers are compared to provide a second level system operation validation.
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Beausoliel, Jr. Robert W.
Dillon Andrew J.
International Business Machines - Corporation
Le Dieu-Minh
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