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It was covered under the now-expired U.S. patent 5,732,138, titled "Method for seeding a pseudo-random number

**generator**with a cryptographic hash of a digitization of a chaotic system." by Landon Curt Noll, Robert G. Mende, and Sanjeev Sisodiya. From 1997 to 2001, [2] there was a website at lavarand.sgi.com demonstrating the technique.However, generally they are considerably slower (typically by a factor 2–10) than fast, non-cryptographic

**random**number generators. These include: Stream ciphers. Popular choices are Salsa20 or ChaCha (often with the number of rounds reduced to 8 for speed), ISAAC, HC-128 and RC4. Block ciphers in counter mode.The Mersenne Twister is a general-purpose pseudorandom number

**generator**(PRNG) developed in 1997 by Makoto Matsumoto (松本 眞) and Takuji Nishimura (西村 拓士). [1][2] Its name derives from the choice of a Mersenne prime as its period length. The Mersenne Twister was designed specifically to rectify most of the flaws found in older PRNGs.A pseudo-noise

**code**(PN**code**) or**pseudo**-random-noise**code**(PRN**code**) is one that has a spectrum similar to a random sequence of bits but is deterministically generated. The most commonly used sequences in direct-sequence spread spectrum systems are maximal length sequences, Gold**codes**, Kasami**codes**, and Barker**codes**.Xorshift. Xorshift

**random**number generators, also called shift-register generators, are a class of pseudorandom number generators that were invented by George Marsaglia. [1] They are a subset of linear-feedback shift registers (LFSRs) which allow a particularly efficient implementation in software without the excessive use of sparse polynomials ...**Amazon**Standard Identification Number. An**Amazon**Standard Identification Number (ASIN) is a 10-character alphanumeric unique identifier assigned by**Amazon**.com and its partners for product identification within the**Amazon**organization. [1] They were designed in 1996 by Rebecca Allen, an**Amazon**software engineer, when it became clear that**Amazon**...Fortuna

**(PRNG**) Fortuna is a cryptographically secure pseudorandom number**generator**(CS-PRNG) devised by Bruce Schneier and Niels Ferguson and published in 2003. It is named after Fortuna, the Roman goddess of chance. FreeBSD uses Fortuna for /dev/random and /dev/urandom is symbolically linked to it since FreeBSD 11. [1]Blum Blum Shub (B.B.S.) is a pseudorandom number

**generator**proposed in 1986 by Lenore Blum, Manuel Blum and Michael Shub [1] that is derived from Michael O. Rabin 's one-way function. Blum Blum Shub takes the form. where M = pq is the product of two large primes p and q. At each step of the algorithm, some output is derived from xn+1; the ...