wherein elements corresponding to the sign making up the clear text are operatively connected with elements corresponding to the signs making up the ciphered text, the connections, during operation of the apparatus, being automatically and continuously permuted by a coding or key member

Patents Grantslast 30 patents

  • Information Patent Grant

    Hardened white box implementation 1

    • Patent number 10,438,513
    • Issue date Oct 8, 2019
    • GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    • Hermann Drexler
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Logic encryption using on-chip memory cells

    • Patent number 10,438,022
    • Issue date Oct 8, 2019
    • ARM Limited
    • Vikas Chandra
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Method for testing and hardening software applications

    • Patent number 10,431,123
    • Issue date Oct 1, 2019
    • GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    • Hermann Drexler
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Hardened white box implementation

    • Patent number 10,403,174
    • Issue date Sep 3, 2019
    • GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    • Hermann Drexler
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Hardened white box implementation 2

    • Patent number 10,249,220
    • Issue date Apr 2, 2019
    • GIESECKE+DEVRIENT MOBILE SECURITY GMBH
    • Hermann Drexler
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2750586

    • Patent number 2,750,586
    • Issue date Jun 12, 1956
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2466390

    • Patent number 2,466,390
    • Issue date Apr 5, 1949
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2401477

    • Patent number 2,401,477
    • Issue date Jun 4, 1946
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2125995

    • Patent number 2,125,995
    • Issue date Aug 9, 1938
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

  • Information Patent Application

    SIMILARITY CALCULATION SYSTEM, SIMILARITY CALCULATION APPARATUS, SI...

    • Publication number 20240121075
    • Publication date Apr 11, 2024
    • NEC Corporation
    • Sanami NAKAGAWA
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Application

    ENCRYPTING DATA

    • Publication number 20210176037
    • Publication date Jun 10, 2021
    • Hewlett-Packard Development Company, L.P.
    • Joshua Serratelli Schiffman
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Hardened White Box Implementation 2

    • Publication number 20170352298
    • Publication date Dec 7, 2017
    • Giesecke & Devrient GmbH
    • Hermann DREXLER
    • G06 - COMPUTING CALCULATING COUNTING