US Patent Issued to International Business Machines on Oct. 14 for "Multi-issuer anonymous credentials for permissioned blockchains" (Swiss Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,288, issued on Oct. 14, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Multi-issuer anonymous credentials for permissioned blockchains" was invented by Kaoutar El Khiyaoui (Zurich), Angelo De Caro (Zurich) and Elli Androulaki (Zurich).

According to the abstract* released by the U.S. Patent & Trademark Office: "A user of a blockchain network may obtain credentials for the user from an issuer, the credentials based on one or more attributes of the user, wherein the issuer is selected from one or more authorized issuers, and wherein the credentials include a signature on the one or more attributes and a secret key; generate an operation composed of a payload ...