MD5 Utility Functions

MD5 Utility Functions — Functions for manipulating MD5 checksums.

Synopsis




            MD5Context;
void        md5_get_digest                  (const gchar *buffer,
                                             gint buffer_size,
                                             guchar digest[16]);
void        md5_get_digest_from_file        (const gchar *filename,
                                             guchar digest[16]);
void        md5_init                        (MD5Context *ctx);
void        md5_update                      (MD5Context *ctx,
                                             const guchar *buf,
                                             guint32 len);
void        md5_final                       (MD5Context *ctx,
                                             guchar digest[16]);

Description

Details

MD5Context

typedef struct {
} MD5Context;

A buffer structure used for md5 calculation.


md5_get_digest ()

void        md5_get_digest                  (const gchar *buffer,
                                             gint buffer_size,
                                             guchar digest[16]);

Get the md5 hash of a buffer. The result is put in the 16 bytes buffer digest .

buffer : byte buffer
buffer_size : buffer size (in bytes)
digest : 16 bytes buffer receiving the hash code.

md5_get_digest_from_file ()

void        md5_get_digest_from_file        (const gchar *filename,
                                             guchar digest[16]);

Get the md5 hash of a file. The result is put in the 16 bytes buffer digest .

filename : file name
digest : 16 bytes buffer receiving the hash code.

md5_init ()

void        md5_init                        (MD5Context *ctx);

Initialise an md5 buffer.

ctx : md5 context

md5_update ()

void        md5_update                      (MD5Context *ctx,
                                             const guchar *buf,
                                             guint32 len);

Update context to reflect the concatenation of another buffer full of bytes. Use this to progressively construct an md5 hash.

ctx : context object used for md5 computaion
buf : buffer to add
len : buffer length

md5_final ()

void        md5_final                       (MD5Context *ctx,
                                             guchar digest[16]);

copy the final md5 hash to a bufer

ctx : context containing the calculated md5
digest : 16 bytes buffer