×

VERIFICATION OF THE INTEGRITY OF A CIPHERING KEY

  • US 20090285398A1
  • Filed: 05/14/2009
  • Published: 11/19/2009
  • Est. Priority Date: 05/16/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for verifying the integrity of a key used in a symmetrical ciphering or deciphering algorithm, comprising the steps of:

  • complementing to one at least the key; and

    verifying the coherence between two executions of the algorithm, respectively with the key and with the key complemented to one.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×