RFC1750 Randomness Recommendations for Security. [c. 1994/12/01]

See Also

Pseudorandom Bit Generators in Stream-Cipher Cryptography ( Kencheng Zeng, Chung-Huang Yang, Dah-Yea Wei, T.R.N. Rao ; IEEE Computer Magazine 1991-02)

I need a random number generator. []

How can I get random integers in a certain range? []

Each time I run my program, I get the same sequence of numbers back from rand(). []

I need a random true/false value, so I'm just taking rand() % 2, but it's alternating 0, 1, 0, 1, 0... []

How can I generate random numbers with a normal or Gaussian distribution? []

Fast Random Number Generation For Encrypted FS? [ 2000/06/24]

Questions and Answers

jot(1) - print sequential or random data {oss}

p5-Math-Random-MT-0.54 - The Mersenne Twister PRNG

p5-String-Random-0.198 - Perl interface to generate "random" strings

p5-Crypt-Random-1.11 - Cryptographically Secure, True Random Number Generator

stan-0.3 - Generate several statisical information of a stream

p5-Math-Random-0.61 - Random number generators

p5-Statistics-ChiSquare-0.3 - How random is your data?

sigit-0.1.0 - A tool to create random signatures

list - List-of-numbers generator {oss}

choose - A program to select lines at random {oss}

mrandom - A random number generator with persistent state {oss}

rand - random pipe {GPL}

arc4random arc4random_stir arc4random_addrandom (3) - arc4 random number generator. {oss}

drand48 erand48 lrand48 nrand48 mrand48 jrand48 srand48 seed48 lcong48 (3) - pseudo random number generators and initialization routines {oss}

rand srand (3) - bad random number generator {oss}

random srandom initstate setstate (3) - better random number generator; routines for changing generators {oss}

p5-Math-TrulyRandom-1.0 - Perl interface to a truly random number generator function

ranlib-1.0 - Library of Routines for Random Number Generation

Rolldice.H,Rolldice.C - Roll specified # of dice, each with speficied # of faces {oss}

Frand.C - Return random double in the range of 0.0 to 1.0 {oss}

Rand1.C - Random number generator {oss}

Bc_Rand.H - Port Borland random() and randomize() {oss,msdos}

Rand2.C - Random number generator {oss}

Rg_Rand.C - Minimal random number generator {oss}

mrandom - random number generator with persistent state {oss}

Statistics::ChiSquare - How random is your data? The Chi Square test tells you. [Perl] {oss}

Math::TrulyRandom - Random numbers generated from interrupt timing discrepancies. Also see Math::PRSG. [Perl] {oss}

Math::PRSG - Pseudo-random (i.e. deterministic) sequence generation. Use this if you don't trust your builtin random number generator (srand and rand). Also see Math::TrulyRandom. [Perl] {oss}

Libraries and Functions

(The following links to subjects at this site retain your personalized selections.)

Up to Math - Gateway topic to math and numeric processing routines.