A tightly secure ID-based signature scheme under DL assumption in AGM

• Main Authors: LOH, Jia-Chng, GUO, Fuchun, SUSILO, Willy, YANG, Guomin
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2023
• Subjects: Identity-based signatures; Provable security; Tight reduction; Algebraic group model; Applied Mathematics; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/8493
• Institution: Singapore Management University

Identity-based signatures (IBS) can be verified using the signer identity information as the public key, and hence, there is no need for certificate management that proves the corresponding public key ownership. Unfortunately, none of the existing IBS schemes has security proven as tight as the disc...