A Secure Scheme for Restrictive Partially Blind Signatures
نویسندگان
چکیده
A secure scheme of restrictive partially blind signature is presented. Our proposed scheme has the following advantages. First, the scheme is secure against the one-more signature forgery under the adaptively parallel attack. Second, the issued signatures can be of polynomial number as comparing with the logarithmic number of previous work. At last, the scheme is with less communicational and computational complexities. These advantages seem favorable for competition among schemes with the same function.
منابع مشابه
ID-based restrictive partially blind signatures and applications
Restrictive blind signatures allow a recipient to receive a blind signature on a message not known to the signer but the choice of message is restricted and must conform to certain rules. Partially blind signatures allow a signer to explicitly include necessary information (expiration date, collateral conditions, or whatever) in the resulting signatures under some agreement with receiver. Restr...
متن کاملID-Based Restrictive Partially Blind Signatures
Restrictive blind signatures allow a recipient to receive a blind signature on a message not know to the signer but the choice of message is restricted and must conform to certain rules. Partially blind signatures allow a signer to explicitly include necessary information (expiration date, collateral conditions, or whatever) in the resulting signatures under some agreement with receiver. Restri...
متن کاملA Provably Secure Scheme for Restrictive Partially Blind Signatures
A secure scheme of restrictive partially blind signature was presented. The proposed scheme has several advantages over the previous scheme: 1. The scheme is provable secure against the one-more signature forgery under the adaptively parallel attack. 2. The issued signatures can be of polynomial number whereas the previous work allows only logarithmic number. 3. The scheme is more efficient tha...
متن کاملA Provably Secure Restrictive Partially Blind Signature Scheme
The concept of partially blind signatures was first introduced by Abe and Fujisaki. Subsequently, in work by Abe and Okamoto, a provably secure construction was proposed along with a formalised definition for partially blind schemes. The construction was based on a witness indistinguishable protocol described by Cramer et al. and utilises a blind Schnorr signature scheme. This paper investigate...
متن کاملEcient Blind and Partially Blind Signatures without Random Oracles
This paper proposes a new ecient signature scheme from bilinear maps that is secure in the standard model (i.e., without the random oracle model). Our signature scheme is more eective in many applications (e.g., blind signatures, group signatures, anonymous credentials etc.) than the existing secure signature schemes in the standard model. As typical applications of our signature scheme, this p...
متن کامل