To understand the definition of a pseudorandom function, it’s good to think of it as a pseudorandom generator whose output isexponentially long, and such that each bit of the output is efficiently computable given the seed. The security is against efficient adversaries that are allowed to look...
D¨ottling, N., Schro¨der, D.: Efficient pseudorandom functions via on-the-fly adap- tation. In: Advances in Cryptology - CRYPTO 2015 - 35th Annual Cryptology Conference. pp. 329-350 (2015)Dttling, N., Schrder, D.: Efficient pseudorandom functions via on-the-fly adaptation. In: ...
PseudorandomFunctionsSummary: A pseudorandom function (PRF) is a keyed function $F : {\\\mathcal K}imes{\\\mathcal X}ightarrow{\\\mathcal Y}$ where, for a random key $k\\\in{\\\mathcal K}$, the function $F(k,\\\cdot )$ is indistinguishable from a uniformly random function,...
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 ...
Pseudorandomness is a central tool in complexity theory and cryptography. A pseudorandom generator (PRG) is a deterministic function G : {0, 1} n →{0, 1} m which stretches a short random seed into a longer output which looks random to any computationally bounded distinguisher. The question...
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;...
Python random.shuffle Therandom.shufflefunction shuffles the sequence in place. shuffling.py #!/usr/bin/python import random words = ['sky', 'storm', 'rock', 'falcon', 'forest'] random.shuffle(words) print(words) random.shuffle(words) ...
A pseudorandom generator from any one-way function SIAM J. Comput, 28 (1999), pp. 1364-1396 Google Scholar Imp95 R. Impagliazzo, Hard-core distributions for somewhat hard problems, in 36th Annual Symposium on Foundations of Computer Science, Milwaukee, Wisconsin, 23–25 October 1995, pp. ...
As a secure pseudorandom function (a.k.a. keyed hash function), SipHash can also be used as a secure message authentication code (MAC). But SipHash isnot a hashin the sense of general-purpose key-less hash function such as BLAKE3 or SHA-3. SipHash should therefore always be used with...
详细解释: 以下为句子列表: 英文: Noise - The shadow samples are offseted from each other in a pseudo-random way, which artificially soften the borders of the shadows. 中文: 噪声-阴影采样值的间值呈伪随机数序列,将逼真地模拟阴影的边界。更详细... ...