Asymmetric key wrapping using a symmetric cipher
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United States of America Patent
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Mar 25, 2014
Grant Date -
Feb 5, 2009
app pub date -
Jul 31, 2007
filing date -
Jul 31, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A method of asymmetric key wrapping in a system is disclosed. The method generally includes the steps of (A) transferring a shared key from a key storage to a cipher operation, wherein the cipher operation comprises a symmetric-key cipher utilizing a cipher key, (B) generating an encrypted key by encrypting a decrypted key with the cipher operation using the shared key as the cipher key in a wrap-encrypt mode and (C) presenting the encrypted key external to the system in the wrap-encrypt mode.
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