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:
Jan. 13, 2026
Filed:
Jul. 08, 2021
Banks and Acquirers International Holding, Paris, FR;
Abstract
A cryptographic data processing method for implementing a cryptographic function, implemented within an electronic data processing device including a processor, a memory and a set of cryptographic processing modules, the method including the following steps implemented by a current cryptographic processing module of the set: receiving incoming data; determining a decryption key to be applied to the incoming data according to a master key and a position of the current cryptographic processing module; decrypting the incoming data, with the key, delivering unencrypted incoming data; implementing at least one cryptographic operation on the unencrypted incoming data, delivering unencrypted outgoing data; optionally, determining a subsequent cryptographic processing module to be executed on the unencrypted outgoing data; obtaining an encryption key for the unencrypted outgoing data; encrypting the unencrypted outgoing data with the previously determined encryption key for the outgoing data, delivering the encrypted outgoing data, which may be intermediate data.