One-Way Hash Function

One-Way Hash Function definition - hacker
A mathematical transformation of data of arbitrary length into a fixed-length string. The mathematical properties of the transformation ensure that the reversion of the hashing is computationally hard and that similar data yield dissimilar hashes. The output of a hash ­function—called a hash, message digest, or digital fingerprint—is used for authentication and message integrity purposes.

Webster's New World Hacker Dictionary Copyright © 2006 by Bernadette Schell and Clemens Martin.
Published by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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