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:
Nov. 25, 2025
Filed:
Feb. 28, 2024
International Business Machines Corporation, Armonk, NY (US);
Nir Drucker, Zichron Yaakov, IL;
Hayim Shaul, Kfar Saba, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Mechanisms are provided for performing homomorphic cryptographic operations. The mechanisms receive a specification of a homomorphic encryption (HE) operation to be performed on workloads comprising one or more input ciphertexts and generate a circuit of HE computations for performing the HE operation. The circuit comprises authentication tag checking logic at one or more inputs of the circuit, and nullification logic inserted into the circuit. The nullification logic operates to delete one or more HE encrypted ciphertexts received by the circuit. The mechanisms process the workloads by the circuit of HE computations to generate one or more output ciphertexts that are results of the HE operation executed on the one or more input ciphertexts, which are returned to a source computing system. The nullification logic deletes an input ciphertext of the one or more input ciphertexts when the authentication tag is invalid.