WebBit Commitment Using Pseudo-Random-Sequence Generators In document Foreword by Whitfield DiffiePrefaceAbout the AuthorChapter 1—Foundations (Page 137-140) This … 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.
Nonmalleable Cryptography SIAM Review
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 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 … can a child be on two medicare cards
Commitment scheme - Wikipedia
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 … WebAug 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 … WebThen you use this output as the next seed, and repeat the process as many times as needed. This is known as the middle-squares method and is just the first in a long line of … fish city grill watters creek allen