Method for the secure remote flashing of the BIOS of a computer
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United States of America Patent
Stats
-
Jan 12, 1999
Grant Date -
N/A
app pub date -
Apr 16, 1997
filing date -
Apr 16, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In a computer system having a receiving computer and a source computer, a method for the remote flashing of the BIOS in the receiving computer including the steps of transferring the flash information from the source computer to the receiving computer, with the flash information including the flash code, the flash code instructions and an encrypted digital signature corresponding to the flash code. The receiving computer is operably placed in a secure mode. A hash value corresponding to the flash information is calculated, and the hash value from the flash information is decrypted. The flash code is validated by comparing the decrypted hash value of the flash information to the calculated hash value, and if validated, the BIOS if flashed with the new flash code.
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