用c语言实现的压缩软件，简单易用。支持最大超过2G的文件。-Bzip compression in C , very easy to use , MD5 checksum , has support to files larger than 2 gb, has additional features not available in the original bzip2 files , compression decompression progress , pause , resume and

MD5算法，著名的加密算法，目前多用于文件校验，文件加密等等领域-MD5 algorithm, known encryption algorithms currently used for file checksum, file encryption, and so the field

Fsum Frontend is a files integrity checker. It can calculate 96 hash and checksum algorithms(CRC32, MD5, SHA1, SHA2, ADLER, DHA256, FORK256, ...). You can verify your files using a .sfv/.md5/.sha1/.sha2 file or create your own checksum file.