One-Way Compression Function
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High Quality Content by WIKIPEDIA articles! In cryptography, a one-way compression function is a function that transforms two fixed length inputs to an output of the same size as one of the inputs. The transformation is "one-way", meaning that it is difficult given a particular output to compute inputs which compress to that output. One-way compression functions are not related to data compression, which by definition is invertible. A one-way compression function One-way compression functions are for instance used in the Merkle-Damgård construction inside cryptographic hash functions.

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High Quality Content by WIKIPEDIA articles! In cryptography, a one-way compression function is a function that transforms two fixed length inputs to an output of the same size as one of the inputs. The transformation is "one-way", meaning that it is difficult given a particular output to compute inputs which compress to that output. One-way compression functions are not related to data compression, which by definition is invertible. A one-way compression function One-way compression functions are for instance used in the Merkle-Damgård construction inside cryptographic hash functions.