Floppy-size group signatures from lattices

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August undefined, 2024

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 … 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 …

Group Signatures from Lattices: Simpler, Tighter, Shorter, …

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 ... 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. in what period did mammals appear

Better Zero-Knowledge Proofs for Lattice Encryption and …

WebAbstract. 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, … WebMay 21, 2024 · Paper 2024/453 Floppy-Sized Group Signatures from Lattices. Cecilia Boschini, Jan Camenisch, and Gregory Neven Abstract. We present the first lattice … 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 … only wearing towel on couch

Floppy-Sized Group Signatures from Lattices - IACR

Simpler Efﬁcient Group Signatures from Lattices - IACR

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 … 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- only web colorsWebMar 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. only webhard

"Consider the polynomial ring \mathcal {R}_{q}=\mathbb {Z}_q/\langle \mathbf {x}^n+1\rangle for a prime q\equiv 5\text { mod }8. Elements in the ring are polynomials of degree at most n-1 with coefficients in \left[ -(q-1)/2,(q-1)/2\right] and operations between ring elements are done modulo q. Let \deg … See more ([29, Lemma 2.2]). Let \mathcal {R}_{q}=\mathbb {Z}_q[\mathbf {x}]/\langle \mathbf {x}^n+1\rangle where n>1 is a power of 2 and q is a prime congruent to 5\text { mod }8. This ring has exactly 2q^{n/2}-1 elements … See more (cf. [2, Lemma 1.5], [27, Lemma 4.4]). Let \mathbf {A}\in \mathbb {Z}^{n\times m} with 2^{11}< m and \mathbf {u}\in \mathbb {Z}^n_q. For \sigma … See more For \mathbf {a},\mathbf {b}\in \mathcal {R}_{q} it holds: \Vert \mathbf {a}\mathbf {b} \Vert _\infty \le \min \left\{ \Vert \mathbf {a} \Vert _\infty \Vert \mathbf {b} \Vert _1,(q-1)/2\right\} . … See more An integer lattice is an additive subgroup of \mathbb {Z}^n. Every lattice \varLambda is generated by a basis \mathbf {B}=\{\mathbf {b}_1,\ldots ,\mathbf {b}_k\}\in \mathbb {Z}^{n\times m}, where m is called … See more " - Floppy-size group signatures from lattices

Floppy-size group signatures from lattices

Floppy-Sized Group Signatures from Lattices - Semantic …

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 … WebMore precisely, signature size, signing and veriﬁcation costs do not depend on number of time periods Tand other metrics are at most log-squared complexity in T. However, all these schemes are constructions based on number-theoretic ... We introduce the ﬁrst forward-secure group signature scheme from lattices. The scheme works in Nakanishi ...

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WebMay 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 … WebJan 18, 2024 · signature size Oe(λ(logN+ logT)), group public key size Oe(λ2(logN+ logT)), and secret key size Oe(λ2(logN+ logT)2 logT). In particular, forward security is achieved with a reasonable cost: the size of keys and signatures are at most O(log3 T) larger than those of the basic GS scheme [33] upon which we build ours. Overview of …

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]. WebThe 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).

WebCecilia Boschini, Jan Camenisch, and Gregory Neven. 2024. Floppy-Sized Group Signatures from Lattices. In ACNS. 163--182. ... San Ling, Khoa Nguyen, and … WebFloppy-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¯ ; …

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

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 … only webhard co krWebJan 25, 2024 · This paper describes the first lattice-based group signature schemes where the signature and public key sizes are essentially logarithmic in N (for any fixed security level) and proves the security of the schemes in the random oracle model under the SIS and LWE assumptions. 135 PDF in what period did pangaea come togetherWebConstant-size group signatures from lattices. In PKC 2024, volume 10770 of LNCS, pages 58-88. Springer, 2024. 3.San Ling, Khoa Nguyen, Huaxiong Wang, and Yanhong Xu. Forward-secure group signatures from lattices. CoRR, abs/1801.08323, 2024. Submitted to PQCrypto 2024. 4.San Ling, Khoa Nguyen, Huaxiong Wang, and Yanhong Xu. Lattice … only wear skirts and dressesWebWe present the first lattice-based group signature scheme whose cryptographic artifacts are of size small enough to be usable in practice: for a group of $$2^{25}$$ 2 25 users, signatures take 910 kB and public keys are 501 kB. Our scheme builds … in what period did dinosaurs go extinctWebThis work presents the first lattice-based group signature scheme whose cryptographic artifacts are of size small enough to be usable in practice: for a group of \$2^{25}\$ … in what period is oxygen in what groupWebIn 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 … in what period did the first fish appear in what period did the dinosaurs go extinct