Floppy-size group signatures from lattices
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, … 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 …
Floppy-size group signatures from lattices
Did you know?
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 ... WebWe 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 …
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- WebConstant-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 …
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 … 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
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 …
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¯ ; … small text html codeWebFeb 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 … highway safety motor vehicle in tallahasseeWebThe 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 small text on redditWebDec 7, 2024 · The only known attribute-based group signature from lattices that has a dynamic feature was put forward by Kuchta et al. [ 14 ]. Their scheme handles the user enrollment problem, however, users cannot be revoked. The support for membership revocation is a desirable functionality for group signature scheme. highway safety servicesWebMar 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. small text on discordWebIn 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 ... highway safety services indianaWebJan 18, 2024 · Group signature is a fundamental cryptographic primitive, aiming to protect anonymity and ensure accountability of users. It allows group members to anonymously … highway safety services llc