On the security of two-round multi-signatures
Web16 de ago. de 2024 · Boneh D Drijvers M Neven G Peyrin T Galbraith S Compact multi-signatures for smaller blockchains Advances in Cryptology – ASIACRYPT 2024 2024 Cham Springer 435 464 10.1007/978-3-030-03329-3_15 Google Scholar Digital Library; 11. Drijvers, M., et al.: On the security of two-round multi-signatures. WebOn the Security of Two-Round Multi-Signatures Manu Drijvers1, Kasra Edalatnejad2, Bryan Ford2, Eike Kiltz3, Julian Loss3, Gregory Neven1, Igors Stepanovs4 1 DFINITY, 2 …
On the security of two-round multi-signatures
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Web13 de out. de 2024 · Table 1. Comparison with previous DLog/FSwA-based multi-signatures with concurrent security in the plain-public key model. The column “#Off” indicates the number of rounds that can be preprocessed in the offline phase (Although ES, MJ, and FH do not explicitly support offline-online paradigm, we conjecture the first … WebAbstract. We describe a new Schnorr-based multi-signature scheme (i.e., a protocol which allows a group of signers to produce a short, joint signature on a common message) called $$\mathsf {MuSig}$$, provably secure under the Discrete Logarithm assumption and in the plain public-key model (meaning that signers are only required to have a public key, but …
WebMulti-signatures ↔ Key aggregation: apk ←KAgg(pk 1,pk 2,pk 3) Verify(apk, m, σ) = 1 Every signer must agree to sign m Goal: short signature (preferably ≈ single signature, … Web10 de mai. de 2024 · In this work, we point out serious security issues in all currently known two-round multi-signature schemes (without pairings). First, we prove that none of the …
Web18 de mar. de 2024 · Multi-signatures enable a group of signers to produce a single signature on a given message. Recently, Drijvers et al. (S&P'19) showed that all thus far proposed two-round multi-signature schemes in the DL setting (without pairings) are insecure under concurrent sessions, i.e., if a single signer participates in multiple signing … Web15 de set. de 2024 · When concurrent executions are allowed, our algorithm leads to practical attacks against unforgeability of blind signature schemes such as Schnorr and Okamoto–Schnorr blind signatures, threshold signatures such as GJKR and the original version of FROST, multisignatures such as CoSI and the two-round version of MuSig, …
Web14 de out. de 2024 · Multi-signatures enable a group of signers to produce a joint signature on a joint message. Recently, Drijvers et al. (S&P'19) showed that all thus far …
WebThe increased interest in technologies to decentralize trust has triggered the proposal of highly efficient two-round Schnorr-based multisignature schemes designed to scale up to … chin\u0027s hiWeb13 de abr. de 2024 · The approaches taken in our two-round protocols are highly inspired by \(\mathsf {mBCJ}\) discrete log-based multi-signature by Drijvers et al. In particular, we observe that it is crucial for two-round protocols to use message-dependent commitment keys (as in \(\mathsf {mBCJ}\)) instead of a single fixed key for all signing attempts (as in … chin\u0027s hhWeb1 de mai. de 2024 · Its security is proven under the DL assumption in ROM. Drijvers, Edalatnejad, Ford, Kiltz, Loss, Neven, and Stepanovs [7] proposed another DLbased … chin\u0027s hlWeb11 de ago. de 2024 · MuSig2 [38] is a simple and secure two-round multi-signature scheme that guarantees security during concurrent sessions. MuSig2's two-round protocol security is based on the algebraic one-more ... granrud\\u0027s lefse shack scobey mtWebExploiting the similarities between FSwA and Schnorr-style signatures, our approach makes the most of observations from recent advancements in the discrete log setting, such as Drijvers et al.’s seminal work on two-round multi-signatures (S&P 2024). granroth-wilding and clark 2016Web2 de fev. de 2024 · Revisions A preliminary version of this paper, dated January 15, 2024, proposed a 2-round variant of \(\mathsf {MuSig}\), where the initial commitment round is omitted, claiming provable security under the One More Discrete Logarithm (OMDL) assumption [10, 11].However, Drijvers et al. [] have discovered a flaw in the security … chin\u0027s hmWeb2 de mai. de 2024 · On the Security of Two-Round Multi-Signatures Manu Drijvers (DFINITY, ETH Zurich), Kasra Edalatnejad (EPFL), Bryan Ford (EPFL), Eike Kiltz (Ruhr … chin\u0027s hn