常见的 PRF 算法有: HMAC(Hash-based Message Authentication Code): HMAC 使用一个哈希函数和一个密钥,通过对消息进行哈希和一些密钥混合操作来生成伪随机输出。SHA-256 和 SHA-3 可以用作 HMAC 的基本哈希函数。 PBKDF2(Password-Based Key Derivation Function 2): PBKDF2 是一种通过对密码进行迭代哈希运算来...
一、pseudorandom function算法的工作原理 pseudorandomfunction算法是基于一个确定性的函数来生成伪随机数的。这个函数被称为伪随机函数(PRF)。PRF能够接收一个输入,通常是一段二进制的密钥,然后产生一个输出,它看起来在统计上是随机的。但事实上,这个输出是可以被复现的,只要给定相同的输入,PRF就会生成相同的输出。
Jean-Jacques QuisquaterSpringer USThe pseudo-random function, prf, defined in [RFC5996], acts as an "extractor" (see [RFC5869]) by distilling the entropy from a secret input into a short, fixed string. The output of prf is indistinguishable from a random source....
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...
(Half)SipHash-c-dwithc≥ 2 andd≥ 4 is expected to provide the maximum PRF security for any function with the same key and output size. The standard PRF security goal allow the attacker access to the output of SipHash on messages chosen adaptively by the attacker. ...
pseudo-random function算法 Pseudo-random functions (PRFs) are cryptographic algorithms that appear random but are actually deterministic functions. The PRF algorithm takes in a secret key and an input value and produces an unpredictable output. Here is a general outline of a PRF algorithm: 1. ...
ThePRFisthe"Pseudo-RandomFunction"that'salsodefinedinthe specandisquiteclever. PRF是一个“伪随机数函数”,这个函数很聪明,在规约中也有定义。 www.infoq.com 7. Echomodeling andsimulationin a PDfuzetargetsimulatorforphasemodulationbypseudorandomcodingare studied. ...
网络释义 1. 似随机函式 随和English, 翻译,... ... 入乡随俗 When in Rome,do as the Romans do似随机函式pseudo-random function随和 amiable ... zh.glosbe.com|基于22个网页 2. 伪随机函数 随机函数,random... ... )pseudo-random function伪随机函数) in random analytic function 随机整函数 .....
(PRFs) from PRFs with small do- main.By instantiating the small-domain PRFs with the Naor-Reingold function (FOCS 1997) or its generalization by Lewko and Waters (ACM CCS 2009), this yields the first fully-secure PRFs whose black-box security proof loses a factor of only O(log2 λ)...
(2005; Zbl 1079.94546)] is a two-party protocol between sender $S$ and receiver $R$ for securely computing a pseudorandom function $f _{k }(\cdot )$ on key $k$ contributed by $S$ and input $x$ contributed by $R$, in such a way that receiver $R$ learns only the value $f _{...