One type of hashing that I hadn't heard of before that I think is really cool, is fuzzy hashing. Which allows you to compare hashes, to find the similarity of

One type of hashing that I hadn't heard of before that I think is really cool, is fuzzy hashing. Which allows you to compare hashes, to find the similarity of data. For an example: http://ssdeep.sourceforge.net/ http://ssdeep.sourceforge.net/