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Cryptographic security module method and apparatus

  • US 20050157881A1
  • Filed: 12/14/2004
  • Published: 07/21/2005
  • Est. Priority Date: 12/15/2003
  • Status: Abandoned Application
First Claim
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1. A cryptographic security module, in which a private part of a cryptographic key is held and from which a public part of the cryptographic key can be extracted, and in which the module can generate a new key, the private part of the cryptographic key being usable to generate a key-generation certificate by signing, either directly or indirectly through one or more levels of indirection, a key-generation message containing information by which the new key can be identified.

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