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Roaming utilizing an asymmetric key pair

  • US 20060182277A1
  • Filed: 02/14/2005
  • Published: 08/17/2006
  • Est. Priority Date: 02/14/2005
  • Status: Abandoned Application
First Claim
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1. A method for generating a portion of a split private key of an asymmetric key pair at multiple locations, the portion not stored in a persistent state, comprising:

  • generating, at a first network location associated with a user, a first symmetric key and a second symmetric key different than the first symmetric key;

    transmitting, from the first network location, the generated second symmetric key and a first one of multiple factors for generating the private key portion encrypted with the generated first symmetric key;

    generating, at a second network location, the first symmetric key and the second symmetric key, the first factor not present at the second network location;

    receiving the encrypted first factor at the second network location subsequent to a user authentication based upon the second symmetric key generated at the second network location; and

    decrypting the received encrypted first factor with the first symmetric key generated at the second network location, the decrypted first factor usable to generate the portion of the split private key of the asymmetric key pair.

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