Method for strongly authenticating another process in a different address space

CAFC
  • US 5,974,550 A
  • Filed: 12/12/1997
  • Issued: 10/26/1999
  • Est. Priority Date: 12/12/1997
  • Status: Expired due to Term
First Claim
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1. A method of authenticating a first process operating in an address space different than that of a second process comprising:

  • creating, by the second process, a tamper resistant module containing a secret;

    sending the tamper resistant module and a challenge from the second process to the first process;

    executing the tamper resistant module by the first process and recovering the secret when the integrity of the first process is verified by the tamper resistant module;

    encoding the challenge using the secret to produce a response;

    sending the response to the second process; and

    decoding the response by the second process.

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