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ASYMMETRIC KEY WRAPPING USING A SYMMETRIC CIPHER

  • US 20090034741A1
  • Filed: 07/31/2007
  • Published: 02/05/2009
  • Est. Priority Date: 07/31/2007
  • Status: Active Grant
First Claim
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1. A method of asymmetric key wrapping in a system, comprising the steps of:

  • (A) transferring a shared key from a key storage to a cipher operation, wherein said cipher operation comprises a symmetric-key cipher utilizing a cipher key;

    (B) generating an encrypted key by encrypting a decrypted key with said cipher operation using said shared key as said cipher key in a wrap-encrypt mode; and

    (C) presenting said encrypted key external to said system in said wrap-encrypt mode.

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