Results 11 to 20 of about 20,320 (295)
Lattice-Based Blind Signatures [PDF]
Lecture Notes in Computer Science, 2010 Motivated by the need to have secure blind signatures even in the presence of quantum computers, we present two efficient blind signature schemes based on hard worst-case lattice problems. Both schemes are provably secure in the random oracle model and unconditionally blind. The first scheme is based on preimage samplable functions that were introduced
Markus Rückert
exaly +12 more sources
Cryptanalysis of Lattice-Based Blind Signature and Blind Ring Signature Schemes [PDF]
IEEE Access, 2021 A blind signature enables a user to obtain signatures on any message from an authority who cannot acquire any information on the message being signed. A blind ring signature scheme is designed as a ring signature scheme with the blindness property.
Kyung-Ah Shim, Youngjoo An
doaj +2 more sources
Security of Blind Signatures Revisited [PDF]
Journal of Cryptology, 2012 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dominique Schröder, Dominique Unruh
openaire +6 more sources
, 1995 A blind signature scheme is a protocol for obtaining a signature from a signer such that the signer's view of the protocol cannot be linked to the resulting message-signature pair. Blind signature schemes are used in anonymous digital payment systems.
Markus Stadler +2 more
openaire +3 more sources
Round Optimal Blind Signatures [PDF]
, 2011 Constructing round-optimal blind signatures in the standard model has been a long standing open problem. In particular, Fischlin and Schroder recently ruled out a large class of three-move blind signatures in the standard model (Eurocrypt'10). In particular, their result shows that finding security proofs for the well-known blind signature schemes by ...
Sanjam Garg +4 more
openaire +3 more sources
Location Privacy Protection Scheme Based on Database-Driven Cognitive Radio Network [PDF]
Jisuanji gongcheng, 2022 The growing number of wireless devices can result in a shortage of spectrum resources.Dynamic spectrum sharing provides a solution to the problem, but requires users to submit their location to the database to query the availability of spectrum, which ...
XU Xin, WEN Mi
doaj +1 more source
A Solidity implementation of TAVS
Frontiers in Blockchain, 2023 We present a Solidity smart contract implementation of the TAVS e-voting protocol. The Two Authorities Electronic Voting Scheme (TAVS) is a voting scheme that achieves universal verifiability with a reduced time-complexity both for the elector and the ...
Antonio M. Larriba, Damián López
doaj +1 more source
Two-Party Cooperative Blind Signature Scheme Based on SM9 [PDF]
Jisuanji gongcheng, 2023 In the existing SM9 blind signature scheme，the signature private key is leaked easily and the signature power is centralized，which are problematic.Hence，a two-party collaborative blind signature scheme based on SM9 is proposed.The Key Generation Center ...
CHEN Qianqian, QIN Baodong
doaj +1 more source
Efficient and safe auditable mixed-coin service scheme based on blind signature
网络与信息安全学报, 2020 The mixed-coin service can provide solutions for the privacy problem of blockchain, but it still faces efficiency bottlenecks and security risks. To further improve the efficiency and security protection of the mixed-coin service, an efficient and safe ...
QIAO Kang, TANG Hongbo, YOU Wei, LI Haitao
doaj +3 more sources
On blindness of several ElGamal-type blind signatures
Prikladnaya Diskretnaya Matematika, 2023 Blind signature schemes are the essential element of many e-cash and e-voting systems. Anonymity in such systems is ensured through the blindness property of the signature schemes. We discuss the blindness property and analyze several ElGamal-type blind signature schemes regarding this property. We present effective attacks violating blindness on three
Babueva, A. A. +3 more
openaire +4 more sources