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ISAAC (cipher)
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{{Short description|Cryptographic number generator}} '''ISAAC''' ('''indirection, shift, accumulate, add, and count''') is a [[cryptographically secure pseudorandom number generator]] and a [[stream cipher]] designed by [[Robert John Jenkins Junior|Robert J. Jenkins Jr.]] in 1993.<ref>Robert J. Jenkins Jr., ISAAC. Fast Software Encryption 1996, pp. 41–49.</ref> The [[reference implementation]] [[source code]] was dedicated to the [[public domain]].<ref>[http://rosettacode.org/wiki/The_ISAAC_Cipher The ISAAC Cipher]</ref> "I developed (...) tests to break a generator, and I developed the generator to pass the tests. The generator is ISAAC."<ref>{{Cite web |last=Jenkins |first=Bob |date=2023-03-17 |title=Tests for Random Number Generators |url=https://www.burtleburtle.net/bob/rand/testsfor.html }}</ref>
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