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:
Aug. 12, 2025
Filed:
Dec. 18, 2020
Barclays Execution Services Limited, London, GB;
George French, London, GB;
Barclays Execution Services Limited, London, GB;
Abstract
This disclosure relates to a computer-implemented method, a data processing apparatus, a computer program, and a computer-readable storage medium for processing encrypted data. There is provided a computer-implemented method for processing a first ciphertext, C, wherein the first ciphertext is data encrypted with a plurality of keys, k. . . k, the method comprising: receiving a first key, k, wherein the first key is one of the plurality of keys; receiving the first ciphertext, C; and performing an exclusive OR operation on the first ciphertext, C, and the first key, k, to produce a second ciphertext, C, such that the second ciphertext, C, is the data encrypted with the plurality of keys k. . . k, and not with the first key, k.