/*
	This file is part of Fennix Kernel.

	Fennix Kernel is free software: you can redistribute it and/or
	modify it under the terms of the GNU General Public License as
	published by the Free Software Foundation, either version 3 of
	the License, or (at your option) any later version.

	Fennix Kernel is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/

#ifndef __FENNIX_KERNEL_MD5_H__
#define __FENNIX_KERNEL_MD5_H__

#include <types.h>

/*
https://github.com/Zunawe/md5-c
*/

START_EXTERNC

typedef struct
{
	size_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(uint8_t *buffer, size_t input_len);

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);

END_EXTERNC

#endif // !__FENNIX_KERNEL_MD5_H__