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Multiple factor private portion of an asymmetric key

  • US 7,630,493 B2
  • Filed: 02/14/2005
  • Issued: 12/08/2009
  • Est. Priority Date: 01/18/2005
  • Status: Active Grant
First Claim
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1. A method for generating a private portion of a split private key of an asymmetric key pair, comprising:

  • receiving multiple factors upon which the private portion is based, each of the multiple factors under control of a user associated with the asymmetric key pair; and

    performing multiple cryptographic operations using the received multiple factors to generate the private portion.

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