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Method and system for generating ciphertext and message authentication codes utilizing shared hardware

  • US 20070106896A1
  • Filed: 11/08/2005
  • Published: 05/10/2007
  • Est. Priority Date: 11/08/2005
  • Status: Active Grant
First Claim
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1. A method of generating ciphertext message data and message authentication codes utilizing shared authenticated encryption unit hardware, said method comprising:

  • receiving plaintext message data at an authenticated encryption unit, wherein said authenticated encryption unit comprises a first authenticated encryption hardware module and a second authenticated encryption hardware module;

    generating a first message authentication code associated with a first authenticated encryption mode of operation utilizing said plaintext message data and said first authenticated encryption hardware module; and

    generating ciphertext message data and a second message authentication code associated with a second authenticated encryption mode of operation utilizing said plaintext message data and said second authenticated encryption hardware module.

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