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/*
* WjCryptLib_Md5 (https://github.com/WaterJuice/WjCryptLib)
* Implementation of MD5 hash function. Originally written by Alexander Peslyak.
* Modified by WaterJuice retaining Public Domain license.
* This is free and unencumbered software released into the public domain - June 2013 - waterjuice.org
*/
#pragma once
#include <stdint.h>
#include <stdio.h>
/* TYPES */
/* Md5Context
* This must be initialised using Md5Initialised.
* Do not modify the contents of this structure directly.
*/
typedef struct {
uint32_t lo;
uint32_t hi;
uint32_t a;
uint32_t b;
uint32_t c;
uint32_t d;
uint8_t buffer[64];
uint32_t block[16];
} Md5Context;
#define MD5_HASH_SIZE (128 / 8)
typedef struct {
uint8_t bytes [MD5_HASH_SIZE];
} MD5_HASH;
/* PUBLIC FUNCTIONS */
/* Md5Initialise
* Initialises an MD5 Context.
* Use this to initialise/reset a context.
*/
void Md5Initialise(Md5Context* Context /* [out] */);
/* Md5Update
* Adds data to the MD5 context.
* This will process the data and update the internal state of the context.
* Keep on calling this function until all the data has been added.
* Then call Md5Finalise to calculate the hash.
*/
void Md5Update(Md5Context* Context /* [in out] */, void const* Buffer /* [in] */, uint32_t BufferSize /* [in] */);
/* Md5Finalise
* Performs the final calculation of the hash and returns the digest
* (16 byte buffer containing 128bit hash).
* After calling this, Md5Initialised must be used to reuse the context.
*/
void Md5Finalise(Md5Context* Context /* [in out] */, MD5_HASH* Digest /* [in] */);
/* Md5Calculate
* Combines Md5Initialise, Md5Update, and Md5Finalise into one function.
* Calculates the MD5 hash of the buffer.
*/
void Md5Calculate(void const* Buffer /* [in] */, uint32_t BufferSize /* [in] */, MD5_HASH* Digest /* [in] */);
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