Patents by Inventor Sinja Kunigk

Sinja Kunigk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Key evolution method and system of block ciphering
    Patent number: 8467526
    Abstract: A system and associated method for block ciphering. The method generates a key that is specific to a text block being encrypted and later being decrypted. The text block is encrypted by a block cipher encryption with the key. The encrypted text block is decrypted by a block cipher decryption with the key back to the text block. Altering a single bit in either the encrypted text block or the key results in unsuccessful decryption such that a decrypted text block is completely different from the before encryption.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: June 18, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jan Kunigk, Sinja Kunigk, Sven Lukas
  • KEY EVOLUTION METHOD AND SYSTEM OF BLOCK CIPHERING
    Publication number: 20090304180
    Abstract: A system and associated method for block ciphering. The method generates a key that is specific to a text block being encrypted and later being decrypted. The text block is encrypted by a block cipher encryption with the key. The encrypted text block is decrypted by a block cipher decryption with the key back to the text block. Altering a single bit in either the encrypted text block or the key results in unsuccessful decryption such that a decrypted text block is completely different from the before encryption.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 10, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jan Kunigk, Sinja Kunigk, Sven Lukas