Blind Signatures in Electronic Voting Systems

Kucharczyk, Marcin

doi:10.1007/978-3-642-13861-4_37

Cited by 12 publications

(4 citation statements)

References 8 publications

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“…Finally, the user generates the final signature applying the random value used to blind the message to unblinds the received token. Blind signatures offer a distinction between authentication and token assignment, which is of major importance for creating privacy respectful protocols, like e-cash [32] and e-voting [35].…”

Section: Blind Signaturesmentioning

confidence: 99%

Non-conventional Digital Signatures and Their Implementations—A Review

Arroyo

Díaz

Rodrı́guez

2015

Advances in Intelligent Systems and Computing

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Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: Abstract. The current technological scenario determines a profileration of trust domains, which are usually defined by validating the digital identity linked to each user. This validation entails critical assumptions about the way users' privacy is handled, and this calls for new methods to construct and treat digital identities. Considering cryptography, identity management has been constructed and managed through conventional digital signatures. Nowadays, new types of digital signatures are required, and this transition should be guided by rigorous evaluation of the theoretical basis, but also by the selection of properly verified software means. This latter point is the core of this paper. We analyse the main non-conventional digital signatures that could endorse an adequate tradeoff betweeen security and privacy. This discussion is focused on practical software solutions that are already implemented and available online. The goal is to help security system designers to discern identity management functionalities through standard cryptographic software libraries.

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Section: Blind Signaturesmentioning

confidence: 99%

Non-conventional Digital Signatures and Their Implementations—A Review

Arroyo

Díaz

Rodrı́guez

2015

Advances in Intelligent Systems and Computing

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“…Moreover, unlinkability is ensured since the bank knows that the customer has withdrawn 10C but it cannot link it with the inquiry from the shopkeeper. Another well-known application for this primitive is the voting scheme in order to ensure that only registered voter can actually vote [44,51].…”

Section: Introductionmentioning

confidence: 99%

A Survey on Identity-Based Blind Signature

Koscina¹,

Lafourcade

Marcadet

et al. 2023

Lecture Notes in Computer Science

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Blind signatures are well-studied building blocks of cryptography, originally designed to enable anonymity in electronic voting and digital banking. Identity-based signature were introduced by Shamir in 1984 and gave an alternative to prominent Public Key Infrastructure. An identity-based blind signature (IDBS) allows any user to interact directly with the signer without any prior interaction with a trusted authority. The first IDBS has been proposed in 2002 and several schemes were proposed since then. Seeking for a full comparison of these primitives, we propose a survey on IDBS and list all such primitives that seems to maintain some security. We also classify their security assumptions based on the existing security expectation that have not been formalized yet in the literature. Moreover, we empirically evaluate the complexity of all the operations used in those schemes with modern cryptographic libraries. This allows us to perform a realistic evaluation of their practical complexities. Hence, we can compare all schemes in terms of complexity and signature size.

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“…Blind signatures, introduced by Chaum [10], allow users to obtain message signatures from a signer without leaking information about message contents. Blind signatures are indispensable in many applications such as electronic cash [23, Section 1] and electronic voting protocols [18]. For such security-critical applications, one would expect blind signatures to be resistant against key disclosure.…”

Section: Introductionmentioning

confidence: 99%

Lattice Blind Signatures with Forward Security

Lê¹,

Duong²,

Susilo³

et al. 2020

Preprint

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Blind signatures play an important role in both electronic cash and electronic voting systems. Blind signatures should be secure against various attacks (such as signature forgeries). The work puts a special attention to secret key exposure attacks, which totally break digital signatures. Signatures that resist secret key exposure attacks are called forward secure in the sense that disclosure of a current secret key does not compromise past secret keys. This means that forward-secure signatures must include a mechanism for secret-key evolution over time periods. This paper gives a construction of the first blind signature that is forward secure. The construction is based on the SIS assumption in the lattice setting. The core techniques applied are the binary tree data structure for the time periods and the trapdoor delegation for the key-evolution mechanism.

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Blind Signatures in Electronic Voting Systems

Cited by 12 publications

References 8 publications

Non-conventional Digital Signatures and Their Implementations—A Review

Non-conventional Digital Signatures and Their Implementations—A Review

A Survey on Identity-Based Blind Signature

Lattice Blind Signatures with Forward Security

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