Importance

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Abstract

Techniques for generating a portion of a split private key are provided. A first symmetric key and a second symmetric key different than the first symmetric key are generated at a first 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 are transmitted. Then, at a second network location, the symmetric keys are again generated. The encrypted first factor is received at the second network location subsequent to a user authentication based upon the second symmetric key generated at the second network location. The received encrypted first factor is then decrypted 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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First Claim