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Key management for encryption/decryption systems

  • US 4,281,216 A
  • Filed: 04/02/1979
  • Issued: 07/28/1981
  • Est. Priority Date: 04/02/1979
  • Status: Expired due to Term
First Claim
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1. In a data encryption/decryption system employing key word security wherein secure data is transferred between at least two security modules, the improvement comprising:

  • means for generating at least one key word, said generating means being responsive to the times of an operator'"'"'s switch input to generate said at least one key word; and

    keyloading means for storing and transporting said at least one key word, said key loading means and said generating means having interfaces thereon for transferring said at least one key word from said generating means to said keyloading means in a form readable only by the system.

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