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Operating system bootstrap security mechanism

  • US 6,263,431 B1
  • Filed: 12/31/1998
  • Issued: 07/17/2001
  • Est. Priority Date: 12/31/1998
  • Status: Expired due to Term
First Claim
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1. A method of booting an operating system having a plurality of boot components, comprising:

  • accessing an ordered list that specifies the order in which the plurality of boot components will be supplied to a hash function;

    accessing the plurality of boot components in the order that the ordered list specifies;

    computing a first hash value from the plurality of boot components;

    accessing a second hash value from a secure flash memory;

    comparing the first hash value to the second hash value; and

    booting the operating system if the first hash value matches the second hash value.

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