MD5校验算法源码 .c .h及一个使用例子

Compute-file-or-string-md5 - C ================================ Compute md5 value of file or string. Try the following: $ gcc main_md5.c md5.c -Wall -o md5_test $ ./md5_test // you may get following: [file - md5.c] md5 value: 2a2caf52cb298f177a57a3211213e141 [string - gchinaran@gmail.com] md5 value: 84701974fb98315895e3ed9053a0b389 // and you can check by md5sum $ md5sum md5.c 2a2caf52cb298f177a57a3211213e141 md5.c // Last: 16-digit md5 is the middle of 32-digit md5