Cryptanalysis of a Forward Secure Blind Signature Scheme with Provable Security

• Main Authors: WANG, Shuhong, BAO, Feng, DENG, Robert H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2005
• Subjects: Blind signature; Cryptanalysis; Forward security; Provable security; Strong RSA assumption; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/564; https://ink.library.smu.edu.sg/context/sis_research/article/1563/viewcontent/Wang2005_CryptanalysisOfAForwardSecureBlind_pv.pdf
• Institution: Singapore Management University

A forward secure blind signature scheme was proposed by Duc, Cheon and Kim, in ICICS 2003. The security of the scheme was proved to be equivalent to the strong RSA assumption in the random oracle model. In this paper we present an attack to the scheme by forging valid signatures with public keys onl...