md5-c.hpp

//https://github.com/Zunawe/md5-c
//commit 1525b0db1fb608afed8948f3a972d55486e8cb31
//committed on 20 Nov 2021 
//with modified
#ifndef ___MD5_C__HPP___
#define ___MD5_C__HPP___
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>

typedef struct{
    uint64_t size;        // Size of input in bytes
    uint32_t buffer[4];   // Current accumulation of hash
    uint8_t input[64];    // Input to be used in the next step
    uint8_t digest[16];   // Result of algorithm
}MD5Context;

void md5Init(MD5Context *ctx);
void md5Update(MD5Context *ctx, uint8_t *input, size_t input_len);
void md5Finalize(MD5Context *ctx);
void md5Step(uint32_t *buffer, uint32_t *input);

// uint8_t* md5String(char *input);
// uint8_t* md5File(FILE *file);

uint32_t F(uint32_t X, uint32_t Y, uint32_t Z);
uint32_t G(uint32_t X, uint32_t Y, uint32_t Z);
uint32_t H(uint32_t X, uint32_t Y, uint32_t Z);
uint32_t I(uint32_t X, uint32_t Y, uint32_t Z);

uint32_t rotateLeft(uint32_t x, uint32_t n);

#endif // ___MD5_C__HPP___