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diff --git a/doc/md5.doc b/doc/md5.doc new file mode 100644 index 0000000000..519dbdc61a --- /dev/null +++ b/doc/md5.doc @@ -0,0 +1,50 @@ +The MD5 library. +MD5 is a message digest algorithm that can be used to condense an arbitrary +length message down to a 16 byte hash. The functions all need to be passed +a MD5_CTX which is used to hold the MD5 context during multiple MD5_Update() +function calls. This library also contains random number routines that are +based on MD5 + +The normal method of use for this library is as follows + +MD5_Init(...); +MD5_Update(...); +... +MD5_Update(...); +MD5_Final(...); + +This library requires the inclusion of 'md5.h'. + +The functions are as follows: + +void MD5_Init( +MD5_CTX *c); + This function needs to be called to initiate a MD5_CTX structure for + use. + +void MD5_Update( +MD5_CTX *c; +unsigned char *data; +unsigned long len); + This updates the message digest context being generated with 'len' + bytes from the 'data' pointer. The number of bytes can be any + length. + +void MD5_Final( +unsigned char *md; +MD5_CTX *c; + This function is called when a message digest of the data digested + with MD5_Update() is wanted. The message digest is put in the 'md' + array and is MD5_DIGEST_LENGTH (16) bytes long. + +unsigned char *MD5( +unsigned char *d; +unsigned long n; +unsigned char *md; + This function performs a MD5_Init(), followed by a MD5_Update() + followed by a MD5_Final() (using a local MD5_CTX). + The resulting digest is put into 'md' if it is not NULL. + Regardless of the value of 'md', the message + digest is returned from the function. If 'md' was NULL, the message + digest returned is being stored in a static structure. + |