Patent ID: 11909891
Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A ring-learning with rounding (LWR)-based quantum-resistant signature method comprising:
a key generation step of receiving a security parameter, and outputting a signature key and a verification key, via an operation on a ring defined by a cyclotomic equation comprising three terms;
a signature value output step of outputting a signature value based on the output signature key; and
a signature verification step of calculating an operation value based on the output verification key and signature value, and verifying a signature based on a result of comparing the output signature value with the calculated operation value,
wherein a degree n of a leading term of the cyclotomic equation is a product of a power of 2 and a power of 3.