Fair Blind Signatures Revisited

2007 ◽  
pp. 268-292 ◽  
Author(s):  
Emeline Hufschmitt ◽  
Jacques Traoré
Keyword(s):  
Blind Signatures

An Electronic Cash System Based on Group Blind Signatures

Informatica ◽  
2006 ◽  
Vol 17 (4) ◽  
pp. 551-564 ◽  
Author(s):  
Constantin Popescu
Keyword(s):  
Electronic Cash ◽  
Blind Signatures

Publicly auditable conditional blind signatures

2021 ◽  
Vol 29 (2) ◽  
pp. 229-271
Author(s):  
Panagiotis Grontas ◽  
Aris Pagourtzis ◽  
Alexandros Zacharakis ◽  
Bingsheng Zhang
Keyword(s):  
Proof Of Concept ◽  
Equivalence Test ◽  
Zero Knowledge ◽  
Private Key ◽  
Blind Signatures ◽  
Cryptographic Primitive ◽  
Security Properties ◽  
Designated Verifier

This work formalizes Publicly Auditable Conditional Blind Signatures (PACBS), a new cryptographic primitive that allows the verifiable issuance of blind signatures, the validity of which is contingent upon a predicate and decided by a designated verifier. In particular, when a user requests the signing of a message, blinded to protect her privacy, the signer embeds data in the signature that makes it valid if and only if a condition holds. A verifier, identified by a private key, can check the signature and learn the value of the predicate. Auditability mechanisms in the form of non-interactive zero-knowledge proofs are provided, so that a cheating signer cannot issue arbitrary signatures and a cheating verifier cannot ignore the embedded condition. The security properties of this new primitive are defined using cryptographic games. A proof-of-concept construction, based on the Okamoto–Schnorr blind signatures infused with a plaintext equivalence test is presented and its security is analyzed.

Blind Signatures

2009 ◽  
pp. 251-252
Author(s):  
Barbara Carminati
Keyword(s):  
Blind Signatures

BLAZE: Practical Lattice-Based Blind Signatures for Privacy-Preserving Applications

2020 ◽  
pp. 484-502 ◽  
Author(s):  
Nabil Alkeilani Alkadri ◽  
Rachid El Bansarkhani ◽  
Johannes Buchmann
Keyword(s):  
Privacy Preserving ◽  
Blind Signatures

scholarly journals Concurrently-Secure Blind Signatures Without Random Oracles or Setup Assumptions

2007 ◽  
pp. 323-341 ◽  
Author(s):  
Carmit Hazay ◽  
Jonathan Katz ◽  
Chiu-Yuen Koo ◽  
Yehuda Lindell
Keyword(s):  
Blind Signatures ◽  
Random Oracles

scholarly journals Efficient Round Optimal Blind Signatures

2014 ◽  
pp. 477-495 ◽  
Author(s):  
Sanjam Garg ◽  
Divya Gupta
Keyword(s):  
Blind Signatures

Blind Signatures Based Secured E-Healthcare System

2018 ◽  
Author(s):  
Jayneel Vora ◽  
Parth DevMurari ◽  
Sudeep Tanwar ◽  
Sudhanshu Tyagi ◽  
Neeraj Kumar ◽  
...  
Keyword(s):  
Healthcare System ◽  
Blind Signatures

Blind signatures using light variations in CCD sensors as a pattern to avoid identity forging

2016 ◽  
Author(s):  
José Antonio Alvarez-Bermejo ◽  
Juan Antonio Lopez-Ramos
Keyword(s):  
Blind Signatures
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