mcrypt

UNIX下FILE命令的实现源码

#------------------------------------------------------------------------------
# Mavroyanopoulos Nikos <[e-mail]>
# mcrypt:   file(1) magic for mcrypt 2.2.x;
0      string          \0m\2           mcrypt 2.2 encrypted data,
>3     byte            0               algorithm: blowfish-448,
>3     byte            1               algorithm: DES,
>3     byte            2               algorithm: 3DES,
>3     byte            3               algorithm: 3-WAY,
>3     byte            4               algorithm: GOST,
>3     byte            6               algorithm: SAFER-SK64,
>3     byte            7               algorithm: SAFER-SK128,
>3     byte            8               algorithm: CAST-128,
>3     byte            9               algorithm: xTEA,
>3     byte            10              algorithm: TWOFISH-128,
>3     byte            11              algorithm: RC2,
>3     byte            12              algorithm: TWOFISH-192,
>3     byte            13              algorithm: TWOFISH-256,
>3     byte            14              algorithm: blowfish-128,
>3     byte            15              algorithm: blowfish-192,
>3     byte            16              algorithm: blowfish-256,
>3     byte            100             algorithm: RC6,
>3     byte            101             algorithm: IDEA,
>4     byte            0               mode: CBC,
>4     byte            1               mode: ECB,
>4     byte            2               mode: CFB,
>4     byte            3               mode: OFB,
>4     byte            4               mode: nOFB,
>5     byte            0               keymode: 8bit
>5     byte            1               keymode: 4bit
>5     byte            2               keymode: SHA-1 hash
>5     byte            3               keymode: MD5 hash