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. 16, 2021
Filed:
Jun. 12, 2019
International Business Machines Corporation, Armonk, NY (US);
Tamas Visegrady, Zurich, CH;
Jan L. Camenisch, Thalwil, CH;
Manu Drijvers, Adliswil, CH;
Silvio Dragone, Olten, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Hardware security modules for executing zero-knowledge proofs are provided. Such a module includes multiple computational engines for executing respective primitive operations of zero-knowledge proofs, and memory storing multiple data-flow graphs. Each data-flow graph defines computational functionality of a respective one of the proofs, and comprises a set of nodes, each representing a said primitive operation, interconnected by edges representing input/output data of nodes. At least edges which represent security-sensitive data are indicated by edge-labels in the graphs. The module further comprises a set of registers, comprising at least a subset of secure registers, for storing data during execution of proofs, and a processor configured to control execution, using said engines, of proofs defined by the set of dataflow graphs such that data corresponding to a security-sensitive edge in a graph is stored in a secure register during execution. Corresponding methods and computer program products are also provided.