ssdeep binary package in Ubuntu Focal amd64

 ssdeep is a tool for recursive computing and matching of Context Triggered
 Piecewise Hashing (aka Fuzzy Hashing).
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 Fuzzy hashing is a method for comparing similar but not identical files.
 This tool can be used to compare files like regular hashing does (like
 md5sum or sha1sum) but it will find similar files with little differences.
 .
 For example, it can be used to identify modified versions of known files
 even if data has been inserted, modified, or deleted in the new files.
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 This package is useful in forensics investigations.

Source package