Pseudorandom number generators | Cryptographically secure pseudorandom number generators

Yarrow algorithm

The Yarrow algorithm is a family of cryptographic pseudorandom number generators (CPRNG) devised by John Kelsey, Bruce Schneier, and Niels Ferguson and published in 1999. The Yarrow algorithm is explicitly unpatented, royalty-free, and open source; no license is required to use it. An improved design from Ferguson and Schneier, Fortuna, is described in their book, Practical Cryptography Yarrow was used in FreeBSD, but is now superseded by Fortuna. Yarrow was also incorporated in iOS and macOS for their /dev/random devices, but Apple has switched to Fortuna since 2020 Q1. (Wikipedia).

Yarrow algorithm
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Related pages

Entropy (computing) | Cryptanalysis | SHA-1 | Triple DES | Power analysis | Fortuna (PRNG) | /dev/random | Block cipher | Cryptographic hash function | Discrete uniform distribution | Modular arithmetic | Random seed | Entropy estimation