Signature-free optimized post-quantum authentication scheme, methods and devices
US12395343B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A post-quantum strong authentication scheme uses a reference PIN code stored in the memory of a personal object 1. A server generates a secret ss and a corresponding cipher ct using a key encapsulation mechanism, KEM, and a public key pk of the user, and then generates a cryptographic key ss' with a one-way function, OWF, applied to the secret. An access terminal 2 receives ss' and ct, and then obtains a PIN entered by the user, encrypts the PIN with ss′, and finally transmits the encrypted PIN cPIN and ct to the personal object 1. The personal object obtains ss through KEM decapsulation of ct and, with its private key sk, generates ss' with OWF, and uses it to decrypt cPIN. Verification thereof validates a first authentication factor. The personal object generates and then sends a confirmation Know(ss) of the secret to the server, validating a second authentication factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.