Keywords: One-way compression.svg A typical one-way compression function Usually used in the Merkle-Damgård construction inside cryptographic hash functions One-way compression functions transforms two fixed length inputs to an output of the same size as one of the inputs This can also be seen as that the compression function transforms one large fixed-length input into a shorter fixed-length output Original illustration by David Göthberg Sweden 2007-07-26 David Göthberg Sweden Released by David as public domain See Category Cryptography diagrams for several related diagrams That category is on Wikimedia Commons Cryptography diagrams |