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Method and system for generation and management of secret key of public key cryptosystem

  • US 5,768,389 A
  • Filed: 06/20/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 06/21/1995
  • Status: Expired due to Term
First Claim
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1. A method for generating and managing a secret key of a public key cryptosystem, comprising the steps of:

  • (a) generating a secret key inside a tamper resistant device; and

    (b) storing the secret key generated at the step (a) into a storage region in a personal portable device from which the secret key cannot be read outside of the personal portable device, while the personal portable device is inside the tamper resistant device.

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