Bit commitment scheme
WebJan 2, 1994 · It is shown that the existence of a statistically hiding bit commitment scheme with noninteractive opening and public verifiability implies theexistence of fail-stop signatures, and that such signatures can now be based on any one-way permutation. We show that the existence of a statistically hiding bit commitment scheme with … WebPedersen commitments are computational binding under the dlog assumptions as seen above. The exponential ElGamal version - publishing ( g r, g m h r) - is, however, unconditionally binding as the first component g r uniquely determines r. Thus, this means that also m in g m h r is uniquely determined. Share Improve this answer Follow
Bit commitment scheme
Did you know?
WebCommitment schemes have important applications in a number of cryptographic protocols including secure coin flipping, zero-knowledge proofs, and secure computation. A way to … WebJun 22, 2024 · Digital cash is a system of purchasing cash credits in relatively small amounts. Protocols implemented: Blind Signature, Secret Splitting, Bit-Commitment …
WebMay 4, 1997 · The proof can be based on any bit commitment scheme with a particular set of properties. We suggest an efficient implementation based on factoring. We also present a 4-move perfect zero-knowledge interactive argument for any NPlanguage L. On input x ∈ L, the communication complexity is O( x c) · max(k, l) bits, where l is the security ... WebDec 1, 2024 · Bit commitment is an important cryptographic primitive; it can be viewed as an electronic realization of a locked box [].Roughly speaking, a bit commitment scheme is a two-stage (consisting of a commit stage and a reveal stage) interactive protocol between a sender and a receiver, providing two security guarantees: hiding and binding.
WebOct 29, 2015 · Bit commitment schemes are at the basis of modern cryptography. Since information-theoretic security is impossible both in the classical and in the quantum … WebThe main problem of this scheme is that all voters should be involved in the ballot counting process due to in the counting stage the authority needs the help of each voter to open the ballot in the bit-commitment scheme. A new scheme has been proposed in to improve voting scheme based on blind signatures [26]. In addition, the threshold encryption
WebMar 23, 2013 · In general, a scheme can not be both perfectly hiding and perfectly binding, because they are opposing principles: If Alice was computationally unbound, hiding …
WebCommitment Schemes Commitment Schemes Digital analogue of a safe. Definition 1 (Commitment scheme) An efficient two-stage protocol (S;R) . Commit The sender S … flower detail wedding dressesWebitives: a bit commitment scheme and three protocols, which correspond to the basic, comparing, and rood-multi protocols in this paper. His basic protocol is the protocol in which P proves to l) that secret s is in a given range [a, b) and the comparing and mod-multi protocols are compositions of the basic protocol. ... flower detection using pythongreek\\u0027s catering and events pensacolaWebJan 21, 2006 · Soon thereafter, Interactive Hashing was deployed in various other scenarios, such as zero-knowledge proofs [26] and bit commitment schemes [17], [23], [25], where at least one of the participants ... flower details drawingWebNov 3, 1993 · A complete protocol for bit commitment based on the transmission of polarized photons is described and it is shown that under the laws of quantum physics, this protocol cannot be cheated by either party except with exponentially small probability. We describe a complete protocol for bit commitment based on the transmission of polarized … greek\u0027s catering and events pensacolaWebA canonical quantum bit commitment scheme satisfies the so-called honest-binding property, which guarantees that any cheating sender in the reveal stage cannot open an honest commitment to the bit 0 as 1, and vice versa. This honest-binding property appears even weaker than sum-binding. Both flavors of canonical quantum bit commitments can be flower deviantartWebDefinition 1. A Bit Commitment scheme is statistically concealing if only a negligible amount of informa-tion on the committed bit can leak to the verifier before the unveiling stage. Definition 2. A Bit Commitment scheme is statistically binding if, for b∈ {0,1}, the probability pb that Alice successfully unveils for bsatisfies p0 +p1 ... greek\\u0027s fishers