Results 251 to 260 of about 24,314 (291)

Efficient Identity-Based Signatures and Blind Signatures

2005
In this paper, we first propose an efficient provably secure identity-based signature (IBS) scheme based on bilinear pairings, then propose an efficient identity-based blind signature (IBBS) scheme based on our IBS scheme. Assuming the intractability of the Computational Diffie-Hellman Problem, our IBS scheme is unforgeable under adaptive chosen ...
Zhenjie Huang, Kefei Chen, Yumin Wang
openaire   +1 more source

Certificateless Partially Blind Signature

2012 26th International Conference on Advanced Information Networking and Applications Workshops, 2012
Blind signatures play a central role in applications such as e-cash and e-voting systems, while partially blind signature is an even more applicable variant. This paper proposes a Certificate less Partially Blind Signature (CPBS) by laying its construction on bilinear pairings over Gap Diffie-Hellman (GDH) Group for solving the key escrow problem in ...
Jingwei Liu, Zonghua Zhang, Rong Sun, Kyung Sup Kwak   +3 more
openaire   +1 more source

Fair Partially Blind Signatures

2010
It is well-known that blind signature schemes provide full anonymity for the receiving user. For many real-world applications, however, this leaves too much room for fraud. There are two generalizations of blind signature schemes that compensate this weakness: fair blind signatures and partially blind signatures.
Markus Rückert, Dominique Schröder
openaire   +1 more source

On “A new quantum blind signature with unlinkability”

Quantum Information Processing, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yi-Ping Luo, Shang-Lun Tsai, Tzonelih Hwang, Shih-Hung Kao   +3 more
openaire   +1 more source

Unconditionally Secure Blind Signatures

2009
The blind signature scheme introduced by Chaum allows a user to obtain a valid signature for a message from a signer such that the message is kept secret for the signer. Blind signature schemes have mainly been studied from a viewpoint of computational security so far. In this paper, we study blind signatures in unconditional setting.
Yuki Hara, Takenobu Seito, Junji Shikata, Tsutomu Matsumoto   +3 more
openaire   +1 more source

Cryptoanlaysis of a Self-Certified Partially Blind Signature and a Proxy Blind Signature

2009 WASE International Conference on Information Engineering, 2009
As a special digital signature, blind signature allowsallows a user to get a signature without giving the signerany information about the actual message or the resultingsignature. Unforgeability is an important property of blindsignature, it assures that any one cannot produce a forgedsignature on a message in a blind signature except thesigner ...
Jianhong Zhang, Shengnan Gao
openaire   +1 more source

Cryptoanalysis of Certificateless Partially Blind Signature and Proxy Blind Signature Scheme

2009 2nd International Congress on Image and Signal Processing, 2009
Blind signature and proxy signature are two im- portant crytographical primitives. Unforgeability is a primitive property of digital signature, it assures that any one cannot produce a forged signature on a message except the signer. However, blindness is an important property which distinguish with other signatures.
Jianhong Zhang, Hua Chen, Qin Geng
openaire   +1 more source

Fair Blind Signatures Revisited

2007
This paper presents a formal model for fair blind signature schemes and a provably secure scheme based on bilinear maps. A blind signature scheme is a protocol for obtaining a signature on a message which is unknown from the signer. Furthermore, the signer cannot link his transcript of a protocol to the resulting message-signature pair.
Emeline Hufschmitt, Jacques Traoré
openaire   +1 more source

How to date blind signatures

1996
A blind signature provides perfect confidentiality to a message and signature pair. Due to this feature, the blind signature has one downside; the signer can not assure himself that the blinded message accurately contains the information he desires. In a practical sense, it is essential for the signer to include some term of validity in the signing ...
Masayuki Abe, Eiichiro Fujisaki
openaire   +1 more source

ID-Based Blind Signature and Proxy Blind Signature without Trusted PKG

2008
Private key escrow is an inherent disadvantage for ID-based cryptosystem, i.e., the PKG knows each signer’s private key and can forge the signature of any signer. Blind signature plays a central role in electronic cash system. Private key escrow is more severe in electronic cash system since money is directly involved.
Yihua Yu, Shihui Zheng, Yixian Yang
openaire   +1 more source