cryptographypseudo-random functionssecret sharingIn Crypto'95, Micali and Sidney proposed a method for shared generation of a pseudo-random function f(·) among n players in such a way that for all the inputs x, any u players can compute f(x) while t...
Pseudo-random functions (PRFs) introduced by Goldwasser, Goldreich, and Micali (FOCS 1984), are one of the most important building blocks in cryptography. A PRF family is a family of seeded functions {fs}, with the property that no efficient adversary can tell the difference between getting ...
Example #1 openssl_random_pseudo_bytes() example 代码语言:javascript 复制 <?phpfor($i=-1;$i<=4;$i++){$bytes=openssl_random_pseudo_bytes($i,$cstrong);$hex=bin2hex($bytes);echo"Lengths: Bytes: $i and Hex: ".strlen($hex).PHP_EOL;var_dump($hex);var_dump($cstrong);echoPHP_EOL;...
We give direct constructions of pseudorandom function (PRF) families based on conjectured hard lattice problems and learning problems. Our constructions are asymptotically efficient and highly parallelizable in a practical sense, i.e., they can be computed by simple, relativelysmalllow-depth arithmetic...
Motivated by EEG recordings of normal brain activity, Chvátal and Goldsmith asked whether these dynamical systems can be engineered to produce trajectories that are irregular, disorderly, and apparently unpredictable. We show that they cannot build weak pseudorandom functions.关键词:...
PRVHASH - Pseudo-Random-Value Hash. Hash functions, PRNG with unlimited period, randomness extractor, and a glimpse into abyss. (inline C/C++) (Codename Gradilac/Градилак) - avaneev/prvhash
, which provides functions to generate pseudorandom integers, floating-point numbers, or even make random choices from a given sequence. other languages like java have their own built-in pseudorandom number generation functions or libraries that you can utilize. are pseudorandom numbers truly random...
Modern Cryptography, Probabilistic Proofs, and Pseudorandomness, Algorithms and Combinatorics, 17, Springer-Verlag, Berlin/New York (1999) Google Scholar GGM86 O. Goldreich, S. Goldwasser, S. Micali How to construct random functions J. Assoc. Comput. Mach, 33 (1986), pp. 792-807 Google Schola...
Madhu, "Design of a New Cryptography Algorithm using Reseeding -Mixing Pseudo Random Number Generator," IJITEE, vol. 52, no. 5, 2013.D. Dilli, Madhu S., "Design of a New Cryptography Algorithm using Reseeding -Mixing Pseudo Random Number Generator," IJITEE, vol. 52, No. 5, 2013...
An oblivious PRF, or OPRF, is a protocol between a client and a server, where the server has a key k for a secure pseudorandom function F, and the client has an input x for the function. At the end of the protocol the client learns F(k, x), and nothing e