The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2022
Filed:
May. 19, 2020
International Business Machines Corporation, Armonk, NY (US);
Michael W. Gray, Guanaba, AU;
Narayana Aditya Madineni, Southport, AU;
Matthew Green, Ashmore, AU;
Simon D. McMahon, GoldCoast, AU;
Leigh S. McLean, Nerang, AU;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, a computer program product, and a system for removing padding oracles in encryption techniques. The method includes padding a plaintext message using a padding scheme producing a padded plaintext message. The method also includes encrypting the padded plaintext message using a block cipher generating an encrypted data block of fixed-size as well as a hash value. The method further includes randomly generating an ephemeral key and an initialization vector. The method also includes prepending the hash value, the ephemeral key, and the initialization vector to the encrypted data block. The method includes performing an encryption technique to the encrypted data block prepended with the hash value, the ephemeral key, and the initialization vector.