Title :
Further Remarks on Identity-Based RSA Multi-signature
Author :
Chang, Ya-Fen ; Lai, Yen-Cheng ; Chen, Mu-Yen
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taichung Inst. of Technol., Taichung, Taiwan
Abstract :
RSA is a popular public key cryptology for encryption and signing messages. In 2008, Harn and Ren introduced a new identity-based RSA multi-signature scheme by adopting Shamir´s signature scheme. But, we find that there are some flaws in their proposal: First, the original signer´s signing secret key can be derived. Second, the verification equation will never hold even if the received signature and message are legal. Third, transmission environments are not taken into consideration. This manuscript will thoroughly make discussions on Harn and Ren´s scheme by showing the mentioned flaws.
Keywords :
digital signatures; public key cryptography; Shamir signature scheme; identity-based RSA multi-signature scheme; original signer signing secret key; public key cryptology; Computer science; Digital signatures; Electronic mail; Identity-based encryption; Information management; Information technology; Public key; Public key cryptography; Security; Signal processing; RSA; digital signature; identity-based signature (IBS); multi- signature; public key cryptography;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2009. IIH-MSP '09. Fifth International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4244-4717-6
Electronic_ISBN :
978-0-7695-3762-7
DOI :
10.1109/IIH-MSP.2009.137
