Bit commitment using pseudo-randomness

Web@inproceedings{crypto-1989-1573, title={Bit Commitment Using Pseudo-Randomness}, booktitle={Advances in Cryptology - CRYPTO '89, 9th Annual International Cryptology … WebA zap is a 2‐round, public coin witness‐indistinguishable protocol in which the first round, consisting of a message from the verifier to the prover, can be fixed “once and for all” and applied to any instance. We present a zap for every language in NP, based on the existence of noninteractive zero‐knowledge proofs in the shared random string model. The zap is …

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In 1991 Moni Naor showed how to create a bit-commitment scheme from a cryptographically secure pseudorandom number generator. The construction is as follows. If G is pseudo-random generator such that G takes n bits to 3n bits, then if Alice wants to commit to a bit b: Bob selects a random 3n-bit … See more A commitment scheme is a cryptographic primitive that allows one to commit to a chosen value (or chosen statement) while keeping it hidden to others, with the ability to reveal the committed value later. Commitment … See more Formal definitions of commitment schemes vary strongly in notation and in flavour. The first such flavour is whether the commitment scheme provides perfect or computational … See more Some commitment schemes permit a proof to be given of only a portion of the committed value. In these schemes, the secret value $${\displaystyle X}$$ is a vector of many … See more Physical unclonable functions (PUFs) rely on the use of a physical key with internal randomness, which is hard to clone or to emulate. Electronic, optical and other types of PUFs have … See more Coin flipping Suppose Alice and Bob want to resolve some dispute via coin flipping. If they are physically in the same place, a typical procedure might be: 1. Alice "calls" the coin flip 2. Bob flips the coin See more A commitment scheme can either be perfectly binding (it is impossible for Alice to alter her commitment after she has made it, even if she has unbounded computational … See more It is an interesting question in quantum cryptography if unconditionally secure bit commitment protocols exist on the quantum level, that is, protocols which are (at least … See more WebWe show how a pseudo-random generator can provide a bit commitment protocol. We also analyze the number of bits communicated when parties commit to many bits simultaneously, and show that the assumption of the existence of pseudorandom generators suffices to assure amortized O (1) bits of communication per bit commitment. References rawlins paints leeds uk https://mixtuneforcully.com

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WebDec 24, 2024 · If e.g. one had a pseudo-random number generator whose initial state was completely unpredictable, and which could be treated as a random oracle unless someone had access to about two billion consecutive bits, and a program used it to produce 10,000 bits, that would be fine if nobody else could get more numbers based upon the same … WebNov 1, 2004 · We show that if the adversary is constrained by an (α, β) assumption then there exist four-round almost concurrent zero-knowledge interactive proofs and perfect concurrent zero-knowledge arguments for every language in NP. WebJan 1, 2005 · M. Naor, Bit commitment using pseudo-randomness, J. Cryptology, vol. 4, pp. 151-158, 1991. M. Naor and K. Nissim, Communication preserving protocols for secure function evaluation, Proc. 33rd STOC, pp. 590-599, 2001. simple hat sewing pattern

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Bit commitment using pseudo-randomness

How to simultaneously exchange secrets by general assumptions

Webbit commitment is the unpredictability of the next bit: it is known that given the first n bits of a pseuderandom sequence, any polynomial time algorithm that tries to predict the next … http://short.iacr.org/cryptodb/data/paper.php?pubkey=1573

Bit commitment using pseudo-randomness

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WebBit Commitment Using Pseudo-Random-Sequence Generators In document Foreword by Whitfield DiffiePrefaceAbout the AuthorChapter 1—Foundations (Page 137-140) This … WebMar 18, 2001 · Our cryptosystem is the first proven to be secure against a strong type of chosen ciphertext attack proposed by Rackoff and Simon, in which the attacker knows the ciphertext she wishes to break and...

WebJan 1, 1995 · The papers are organized into sections with the following themes: Why is cryptography harder than it looks?, pseudo-randomness and sequences, cryptanalysis and implementation, signature and... WebPaper: Bit Commitment Using Pseudo-Randomness. Authors: Moni Naor: Download: DOI: 10.1007/0-387-34805-0_13 (login may be required) Search ePrint Search Google: Conference: CRYPTO 1989: BibTeX.

WebNaor, "Bit commitment using pseudo-randomness", J. Cryptology, vol. 2, no. 2, pp. 151-158, 1991. H.F. Chau, Hoi-Kwong Lo, “Making an Empty Promise with a Quantum … WebFeb 1, 2000 · Bit commitment using pseudo-randomness Proc. of Crypto'89, Lecture Notes in Computer Science, 435, Springer-Verlag, Berlin ( 1990) p. 128–136 Google Scholar Oka96 T. Okamoto, On relationships between statistical zero-knowledge proofs, in Proc. of STOC'96, 1986, pp. 649–658. Google Scholar Ore87

WebOct 12, 2024 · Bit commitment using pseudo-randomness (extended abstract) Conference Paper. Jul 1989; Moni Naor; We show how a pseudo-random generator can provide a bit commitment protocol. We also analyze the ...

Webpseudo-random generator, a bit t commitmen proto col can b e constructed. This is er eak w condition, since ao Y ao] [Y has wn sho that pseudo-random generators can b e … rawlins outlaws footballWebMoni Naor: Bit Commitment Using Pseudorandomness. J. Cryptology 4(2): 151-158 (1991) 20 : ... Moni Naor: Bit Commitment Using Pseudo-Randomness. CRYPTO 1989: 128-136: 12 : Russell Impagliazzo, Moni Naor: Efficient Cryptographic Schemes Provably as Secure as Subset Sum FOCS 1989: 236-241: 11 : rawlins paints near meWebThis paper presents two practical message commitment schemes: one is suitable for committing many bits, and another is useful for committing any bit-long message. They … rawlins park washington dcWebMar 16, 2010 · Once we have n bits, we use a PRNG (Pseudo-Random Number Generator) to crank out as many bits as necessary. A PRNG is said to be cryptographically secure if, assuming that it operates over a wide enough unknown n -bit key, its output is computationally indistinguishable from uniformly random bits. rawlins physical therapyWebAug 22, 2009 · This paper deals with generic transformations from ID-based key encapsulation mechanisms (IBKEM) to hybrid public-key encryption (PKE). The best generic transformation known until now is by Boneh and Katz and requires roughly 704-bit overhead in the ciphertext. We present new generic transformations that are applicable to … rawlins pharmacyWebSep 11, 2015 · Bit commitment using pseudo-randomness. In Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology (CRYPTO’89). 128--136. Google Scholar Digital Library; Moni Naor. … rawlins plantationWebBit commitment using pseudo-random synthesizer. Two practical message commitment schemes are presented: one is suitable for committing many bits, and another is useful … rawlins photography