Yarrow
A secure pseudorandom number generator 
Designed by Bruce Schneier and John Kelsey
Note: Yarrow has been replaced by Fortuna, and is no longer being supported. Documents about Yarrow are retained here for historical interest only.
- Yarrow paper
- Questions and Answers about Yarrow
- Source code (Note: the source code implements an older version of Yarrow, not the one specified in the paper.)
- Press Release
- Wired article
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Sidebar photo of Bruce Schneier by Joe MacInnis.