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Dynamic configuration of a secure processing unit for operations in various environments

  • US 5,883,956 A
  • Filed: 03/28/1996
  • Issued: 03/16/1999
  • Est. Priority Date: 03/28/1996
  • Status: Expired due to Term
First Claim
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1. A data structure for a cryptographically secure processing unit (SPU) stored in a computer readable memory comprising:

  • a capability table specifying functions that can be executed by said SPU;

    a first field related to a time period for which said table is valid; and

    a second field authenticating said capability table and said first field.

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