Methods and apparatus for secure hardware configuration
AssigneeInternational Business Machines Corporation
InventorsRandall J. Easter, Vincent A. Spano, Myron W. Zajac, John E. Campbell
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Abstract
Methods and apparatus are provided for electronically configuring hardware features and options. A computer chip encoding method is provided in which a predetermined code or encryption sequence is uniquely associated with a computer chip. This code is used to modify a hardware configuration by enabling new features or options. The systems and methods reduce manufacturing and inventory costs by allowing a generic product to be produced which is then customized to meet the needs of the user. In addition, features and options of a data processing system can be dynamically upgraded without interruption of service or hardware replacement.
Claims12
An electronic hardware configuration system, said system comprising:
- a computer module in the form of a multichip module or an integrated circuit chip wherein said computer module includes a plurality of programmable features;
- a first register on said computer module for storing a secure code unique to the computer module, said secure code including unique codes for each of said plurality of programmable features;
- a second register for receiving a key code, said key code identifying a feature or features of said computer module to be enabled;
- means connected to said first and second registers for comparing said key code to said secure code on said computer chip;
- means for evaluating results from said means for comparing, wherein if said key code matches said secure code, a feature or features identified by said key code are enabled.
Dependencies are inferred from the claim text.