SHA-1 Counter-cryptanalysis library
Library and command line tool to detect SHA-1 collision in a file.
This library and command line tool were designed as near drop-in replacements for common SHA-1 libraries and sha1sum. They will compute the SHA-1 hash of any given file and additionally will detect cryptanalytic collision attacks against SHA-1 present in each file. It is very fast and takes less than twice the amount of time as regular SHA-1.
Shumow, D, & Stevens, M.M.J. (2017). SHA-1 Counter-cryptanalysis library.