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Whirlpool (sometimes styled WHIRLPOOL) is a cryptographic hash function designed by Vincent Rijmen (co-creator of the Advanced Encryption Standard) and Paulo S. L. M. Barreto. The hash has been recommended by the NESSIE project. It has also been adopted by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) as part of the joint ISO/IEC 10118-3 international standard.


Whirlpool is a hash designed after the Square block cipher. Whirlpool is a Miyaguchi-Preneel construction based on a substantially modified Advanced Encryption Standard (AES). Given a message less than 2256 bits in length, it returns a 512-bit message digest.

The authors have declared that "WHIRLPOOL is not (and will never be) patented. It may be used free of charge for any purpose. The reference implementations are in the public domain."

Less then 10000 characters please.

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