/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de>                                    */
/* This work has been released under the CC0 1.0 Universal license!           */
/******************************************************************************/

#ifndef INC_MCYRPT_H
#define INC_MCYRPT_H

#include <stdlib.h>
#include <stdint.h>

extern const char *const LIBMCRYPT_VERSION;
extern const char* const LIBMCRYPT_BUILDNO;

/*
 * Opaque handle to internal state
 */
typedef uintptr_t mcrypt_t;

/*
 * Constants
 */
#define MCRYPT_NULL ((mcrypt_t)NULL)
#define MCRYPT_SUCCESS 0
#define MCRYPT_FAILURE (-1)

/*
 * Seed generator
 */
int mcrypt_generate_seed(uint64_t* const seed);

/*
 * Allocate, reset or free state
 */
mcrypt_t mcrypt_alloc(const uint64_t salt, const uint8_t *const passwd, const size_t passwd_len);
int mcrypt_reset(const mcrypt_t context, const uint64_t salt, const uint8_t *const passwd, const size_t passwd_len);
void mcrypt_free(const mcrypt_t context);

/*
 * Encryption routines
 */
int mcrypt_encrypt(const mcrypt_t context, const uint8_t *const input, uint8_t* const output, size_t length);
int mcrypt_encrypt_inplace(const mcrypt_t context, uint8_t *const buffer, size_t length);

/*
 * Decryption routines
 */
int mcrypt_decrypt(const mcrypt_t context, const uint8_t *const input, uint8_t *const output, size_t length);
int mcrypt_decrypt_inplace(const mcrypt_t context, uint8_t* const buffer, size_t length);

/*
 * Auxiliary functions
 */
int mcrypt_random_bytes(uint8_t* const buffer, const size_t length);
void mcrypt_bzero(void* const ptr, const size_t length);

#endif