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C++ cryptographic library (modern hash functions, ciphers, KDFs)
...Includes sample command-line tools:
- 'digest' - for calculating and verifying file checksum(s) using any of the supported hash algorithms (similar to md5sum or RHash).
- 'cryptor' - for file encryption using Serpent-256 algorithm in AEAD mode.
Check out the cppcrypto web site linked below for programming documentation.
...There is also a library call that allows you to judge the efficiency of your hash function. The library has complete HTML documentation. And several tests of the library can be run with "make check".