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Received: 2003-01-22

Revision Accepted: 2003-06-11

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.1 P.40~44

http://doi.org/10.1631/jzus.2004.0040


Untraceable partially blind signature based on DLOG problem


Author(s):  HUANG Zheng, CHEN Ke-fei, KOU Wei-dong

Affiliation(s):  Department of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200030, China; more

Corresponding email(s):   Huang-zheng@cs.sjtu.edu.cn, chen-kf@cs.sjtu.edu.cn, weidong-kou@eti.hku.hk

Key Words:  Partially blind signature, Digital signature, Blind signature


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HUANG Zheng, CHEN Ke-fei, KOU Wei-dong. Untraceable partially blind signature based on DLOG problem[J]. Journal of Zhejiang University Science A, 2004, 5(1): 40~44.

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Abstract: 
This paper proposes a new untraceable blind signature%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>partially blind signature scheme which is a cross between the traditional signature scheme and the blind signature scheme. In this proposed scheme, the message M that the signer signed can be divided into two parts. The first part can be known to the signer (like that in the traditional signature scheme) while the other part cannot be known to the signer (like that in the blind signature scheme). After having signed M, the signer cannot determine if he has made the signature of M except through the part that he knows. We draw ideas from Brands' "Restricted blind signature" to solve the Untraceable blind signature%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>partially blind signature problem. Our scheme is a probabilistic signature scheme and the security of our Untraceable blind signature%29&ck%5B%5D=abstract&ck%5B%5D=keyword'>partially blind signature scheme relies on the difficulty of computing discrete logarithm.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Abe, M. and Fujisaki, E., 1996. How to date blind signatures. Advances in Cryptology-ASIACRYPT '96, LNCS, 1163:244-251.

[2] Abe, M. and Okamoto, T., 2000. Provably Secure Partially Blind Signatures. Advances in Cryptology-Crypto'2000, LNCS, 1880:271-299.

[3] Brands, S., 1995. Off-Line Electronic Cash Based on Secret-Key Certificates. Proceedings of the Second International Symposium of Latin American Theoretical Informatics (LATIN'95), p.131-166.

[4] Brands, S, 1999. Rethinking Public Key Infrastructures and Digital. Certificates-Building in Privacy, Doctoral Dissertation, Ponsen & Looijen BV, Set. 4: 287.

[5] Chaum, D. , Fiat, A. and Naor, M., 1990. Untraceable Electronic Cash. Advances in Cryptology-Crypto'88, Spinger-Verlag,p.319-327.

[6] Chaum, D., 1983. Blind signatures for untraceable payments. Advances in Cryptology-Crypto'82, Springer-Verlag, p.199-203.

[7] Chaum,D., 1985. Security without identification: transaction systems to make big brother obsolete. Communications of the ACM, 28(10):1030-1044.

[8] Franklin, M. and Yung, M., 1993. Secure and efficient off-line digital money. Proceedings of ICALP'93, LNCS,700:265-276.

[9] Okamoto, T., 1991. Universal Electronic Cash. Advances in Cryptology-Crypto'91, LNCS, 576:324-337.

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