Floppy-size group signatures from lattices

WebAbstract. A group signature allows a group member to anonymously sign mes-sages on behalf of the group. In the past few years, new group signatures based on lattice problems have appeared: the most efficient lattice-based constructions are due to Laguillaumie et al. (Asiacrypt ’13) and Langlois et al. (PKC ’14). Both WebJan 25, 2024 · To reduce potential damages caused by key exposure attacks, Song (CCS 2001) put forward the concept of forward-secure group signatures (FSGS). For the time being, all known secure FSGS schemes are based on number-theoretic assumptions, and are vulnerable against quantum computers. In this work, we construct the first lattice …

Floppy-Sized Group Signatures from Lattices - Semantic …

Webtool led to the design of elegant compact group signatures [10,25] whose security relies on pairing-related assumptions. The resulting signatures typically consist in a constant number of elements of a group admitting a secure and e cient bilinear map. Lattices and Group Signatures. Lattices are emerging as a promising al- WebSimpler Efficient Group Signatures from Lattices Phong Nguyen1,Jiang Zhang 2, Zhenfeng Zhang 1INRIA, France and Tsinghua University, China 2Institute of Software, Chinese Academy of Sciences PKC 2015 (March 30 — April 1, 2015) NIST — Gaithersburg, Maryland USA Jiang Zhang (TCA) Simpler Efficient Group Signatures from Lattices … china outdoor sink table https://alliedweldandfab.com

Forward-Secure Group Signatures from Lattices

WebJul 16, 2015 · I'd like to have you review my understanding/planning for SLOG size and clarify transaction group sizing: System: X8DTN+ / 2x Intel 5520 2.4Ghz / 72GB RAM … WebFeb 18, 2024 · Multi-group signature (MGS), introduced by Ateniese and Tsudik (FC’99), is a proper generalization of group signature. It allows signers to sign messages anonymously on behalf of multiple groups and has extensive applications in … Web1.3 Applications to Group Signatures and Credentials Group signatures [12] are schemes that allow members of a group to sign messages on behalf of the group without revealing their identity. In case of a dispute, the group manager can lift a signer’s anonymity and reveal his identity. Currently known group signatures based on lattice ... grambling carver hall

Group Signatures and More from Isogenies and Lattices: …

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Floppy-size group signatures from lattices

Forward-Secure Group Signatures from Lattices - arXiv

WebJan 7, 2024 · A New Constant-Size Group Signature Scheme From Lattices Abstract: A lattice-based group signature scheme (LGSS) is an active cryptographic primitive, … Web[9] constructed the first constant-size group signature from lattices, and the scheme is based on the DMS. Katsumata et al. [30] made group signatures without NIZK from …

Floppy-size group signatures from lattices

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WebJan 18, 2024 · Group signature is a fundamental cryptographic primitive, aiming to protect anonymity and ensure accountability of users. It allows group members to anonymously … Webrecently active topic of lattice-based group signatures. Lattice-based group signatures. The first lattice-based group signature scheme was introduced by Gordon, Katz and Vaikuntanathan in 2010 [20]. Sub-sequently, numerous schemes offering improvements in terms of security and efficiency have been proposed [12,26,34,48,30,28,9,51].

WebMar 1, 2024 · Lattice-based group signature is an active research topic in recent years. Since the pioneering work by Gordon, Katz and Vaikuntanathan (Asiacrypt 2010), ten other schemes have been proposed, providing various improvements in terms of security, efficiency and functionality. WebIn this work, we introduce the first constant-size group signature from lattices, which means that the size of signatures produced by the scheme is independent of Nand only depends on the security parameter λ. More precisely, in our scheme, the sizes of signatures, public key and users’ se-cret keys are all of order Oe(λ). The scheme ...

WebJun 10, 2024 · We present an improved lattice-based group signature scheme whose parameter sizes and running times are independent of the group size. The signature … WebJan 1, 2015 · In this paper, we present a simpler lattice-based group signature, which is more efficient by a O (\log N) factor in both the group public key and the signature size. We achieve this by using a new non-interactive zero-knowledge (NIZK) proof corresponding to a simple identity-encoding function.

WebJul 14, 2024 · More precisely, the proposed scheme is the first attribute-based signature from lattices to support conjunctions, disjunctions, threshold predicates, polynomial evaluations, and CNF/DNF...

WebThe rst group signature from lattices was introduced by Gordon et al. [GKV10]. While their scheme is of great theoretical interest, its public key and signature have sizes NOe(n2), for ... [GKV10], but the signature size is still linear in N. The linear-size barrier was nally overcome by Laguillaumie et al. [LLLS13], who designed grambling change of major formWebMay 15, 2024 · Floppy-Sized Group Signatures from Lattices. We present the first lattice-based group signature scheme whose cryptographic artifacts are of size small enough … grambling chelsey lucasWebFloppy-Sized Group Signatures from Lattices 165 The problem with this approach is that the Lyubashevsky-Neven vfi encryption scheme encrypts the full witness [S ; ¯b ; m¯ ; … grambling chelsea lucasWebSep 30, 2024 · Published: November 2024. Abstract. We propose the first lattice-based dynamic group signature scheme achieving forward security. Our scheme is proven to be secure against framing attack, misidentification attack and preserves anonymity under the learning with errors ( L W E) and short integer solution ( S I S) assumptions in the … grambling city councilgrambling city courtWebAbstract. We present the rst lattice-based group signature scheme whose cryptographic artifacts are of size small enough to be usable in practice: for a group of 225 users, … grambling cheerleaders imagesWebThe signature size of our isogeny-based construction is an order of magnitude smaller than all previously known post-quantum group signatures (e.g., 6.6 KB for 64 members). In comparison, our lattice-based construction has a larger signature size (e.g., either 126 KB or 89 KB for 64 members depending on the satisfied security property). grambling city police department