Patents Represented by Attorney, Agent or Law Firm Stephen C. Shour
  • Patent number: 6269164
    Abstract: A technique for encrypting and decrypting a data message is described herein and includes a stream cipher, a block cipher and a key generation embodiment which use a process of Summary Reduction. This overall technique uses a secret key to generate ciphertext from plaintext and in doing so, the technique isolates the nature of the secret key values from the nature of the cipher text created.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: July 31, 2001
    Inventor: Paul Pires