A secure pseudorandom number generator line drawing of yarrow leaves and flower

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Note: Yarrow has been replaced by Fortuna, and is no longer being supported.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.

up to Academic

Photo of Bruce Schneier by Per Ervland.

Schneier on Security is a personal website. Opinions expressed are not necessarily those of IBM Resilient.