Round optimal blind signatures

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August undefined, 2024

WebNov 7, 2024 · This work provides the first overall practical, lattice-based blind signature, supporting an unbounded number of signature queries and additionally enjoying optimal … WebMar 24, 2024 · A blind signature scheme is an interactive protocol between a signer $\mathsf{S}$ ... protocol may vary. This, in turn, may have an impact on the way the security game is played. In the case of a round-optimal blind signature scheme the protocol would look like this: $$ \begin{array}{lcl} \hline \text{Signer } \mathsf{S} ...

Round-Optimal Composable Blind Signatures in the Common

Web• The application: a round-optimal blind signature scheme Outline 5. Divide the talk into three main parts: • The setting: work in composite-order bilinear groups • The application: a round-optimal blind signature scheme • The problem: what if we want to instantiate our scheme in a prime-order WebJan 23, 2024 · We give a construction of a 2-round blind signature scheme based on the hardness of standard lattice problems (Ring/Module-SIS/LWE and NTRU) with a signature size of 22 KB. The protocol is round-optimal and has a transcript size that can be as small as 60 KB. This blind signature is around 4 4 times shorter than the most compact lattice … gsk auction

Round-Optimal Blind Signatures in the Plain Model from Classical …

WebKnown constructions of blind signature schemes suffer from at least one of the following limitations: (1) rely on parties having access to a common reference string or a random … WebJun 16, 2024 · A round-optimal blind signature is a blind signature with only 2-moves Footnote 1, where the user and signer sends one message to each other. We focus on … WebJan 27, 2015 · Automorphic signatures can be used for building certification chains underlying privacy-preserving protocols. Among a vast number of applications of … gsk asthma control test score

A Short Paper on Blind Signatures from Knowledge Assumptions

Round Optimal Blind Signatures SpringerLink

WebRound-optimal blind signatures are notoriously hard to construct in the standard model, especially in the malicious-signer model, where blindness must hold under adversarially chosen keys. WebThis work introduces two round-optimal constructions in the random oracle model, and provides guidance towards their concrete realization as well as efficiency estimates, and introduces a new and arguably natural assumption: one-more-ISIS. Blind signatures have numerous applications in privacy-preserving technologies. While there exist many … gsk bangalore office locationWebApr 10, 2015 · However, most blind signature schemes based on factoring and discrete logarithm problems cannot resist quantum computer attacks. The alternative blind signature schemes are based on lattice. Here, we present a round-optimal lattice-based blind signature scheme constructed on the closest vector problem using infinity norm. finance charge for credit card

"Websumptions, and with optimal round complexity. Namely, each interactive signature generation requires the requesting user and the issuing bank to transmit only one … " - Round optimal blind signatures

Round optimal blind signatures

Practical, Round-Optimal Lattice-Based Blind Signatures - IACR

WebAug 11, 2016 · We note that analogously to the extension of the round-optimal blind signature construction in , it is possible to derive a partially blind signature scheme from …

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WebCiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract. Constructing round-optimal blind signatures in the standard model has been a long standing open problem. In particular, Fischlin and Schröder recently ruled out a large class of three-move blind signatures in the standard model (Eurocrypt’10). In particular, their result … WebRound Optimal Blind Signatures Sanjam Garg Vanishree Rao Amit Sahai Dominique Schroeder* Dominique Unruh *Postdoctoral Fellow of the DAAD ... •FS[10] proved impossibility of three round blind signature schemes •Restricted to blind signature schemes with some technical properties •Blindness holds with respect to a forgery oracle as well

WebDec 2, 2024 · In this work, we provide the first overall practical, lattice-based blind signature, supporting an unbounded number of signature queries and additionally enjoying optimal … WebJan 1, 2011 · Constructing round-optimal blind signatures in the standard model has been a long standing open problem. In particular, ...

WebIn this work, we provide an efficient, round-optimal (two-round) blind signature scheme from the hardness of the discrete log (DL) problem {\it and} the learning with errors problem in the (non black-box) random oracle model. Our construction enjoys {\it post-quantum} … WebAug 14, 2011 · Constructing round-optimal blind signatures in the standard model has been a long standing open problem. In particular, Fischlin and Schröder recently ruled out a …

WebJan 1, 2015 · Round-optimal blind signatures are notoriously hard to construct in the standard model, especially in the malicious-signer model, where blindness must hold …

Websumptions, and with optimal round complexity. Namely, each interactive signature generation requires the requesting user and the issuing bank to transmit only one message each. We also put forward the deﬁnition of universally composable blind signature schemes, and show how to ex-tend our concurrently executable blind signature protocol … finance charge in myobWebJun 24, 2024 · In this work, we construct the first round-optimal (i.e., two-round) lattice-based blind signature with a signature size of roughly 100 KB that supports unbounded … finance charge in quickbooks onlineWebThis work builds concurrently executable blind signatures schemes in the common reference string model, based on general complexity assumptions, and with optimal round complexity, and puts forward the definition of universally composable blind signature schemes. We build concurrently executable blind signatures schemes in the common … finance charge maximum by stateWebMar 19, 2012 · Round-optimal blind signatures are notoriously hard to construct in the standard model, especially in the malicious-signer model, where blindness must hold under adversarially chosen keys. gsk bangalore locationWebSep 1, 2011 · Time/space complexity and security model (random oracle model versus standard model; sequential, parallel, or concurrent security) are commonly used to … gsk barnard castle q blockWebFeb 27, 2024 · In this work we propose a round-optimal, 2-round lattice-based blind signature scheme which produces signatures of length 150 KB. The running time of the signing protocol is linear in the maximum ... finance charge hsbc credit cardWebMar 22, 2024 · Blind Signatures. For blind signatures, we improve the state of art lattice-based construction by Hauck et al. [CRYPTO'20] as follows: a. Round Complexity. We … finance charge on a car loan