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:
Dec. 02, 2025
Filed:
Nov. 20, 2023
Telefonica Innovacion Digital, S.l.u., Madrid, ES;
Xiaoyuan Yang, Madrid, ES;
TELEFONICA INNOVACION DIGITAL, S.L.U., Madrid, ES;
Abstract
A method and system for multi-factor authenticating users in Web3 services includes a multi-factor authentication (e.g., 2FA) provider configured to validate that an end-user owns a public key in a blockchain based on a cryptocurrency or a NFT transference, the public key used as a first factor for the authentication. The authentication provider interacts with a smart contract to perform the multi-factor authentication in an operation in a smart contract by using off-chain data as the other factor(s) required for the multi-factor authentication. The off-chain data are received in a user terminal, e.g., a smartphone via SMS or a mobile application, associated with the account created in the authentication provider. The authentication result is read by each node executing the smart contract and, when a consensus is reached among nodes, a new block representing the result is generated in the blockchain.