[pcsx_rearmed.git] / deps / crypto / des.h

/*********************************************************************
* Filename:   des.h
* Author:     Brad Conte (brad AT bradconte.com)
* Copyright:
* Disclaimer: This code is presented "as is" without any guarantees.
* Details:    Defines the API for the corresponding DES implementation.
              Note that encryption and decryption are defined by how
              the key setup is performed, the actual en/de-cryption is
              performed by the same function.
*********************************************************************/

#ifndef DES_H
#define DESH

/*************************** HEADER FILES ***************************/
#include <stddef.h>

/****************************** MACROS ******************************/
#define DES_BLOCK_SIZE 8                // DES operates on 8 bytes at a time

/**************************** DATA TYPES ****************************/
typedef unsigned char BYTE;             // 8-bit byte
typedef unsigned int  WORD;             // 32-bit word, change to "long" for 16-bit machines

typedef enum {
	DES_ENCRYPT,
	DES_DECRYPT
} DES_MODE;

/*********************** FUNCTION DECLARATIONS **********************/
void des_key_setup(const BYTE key[], BYTE schedule[][6], DES_MODE mode);
void des_crypt(const BYTE in[], BYTE out[], const BYTE key[][6]);

void three_des_key_setup(const BYTE key[], BYTE schedule[][16][6], DES_MODE mode);
void three_des_crypt(const BYTE in[], BYTE out[], const BYTE key[][16][6]);

#endif   // DES_H
Commit	Line	Data
ce188d4d	1	/*********************************************************************
	2	* Filename: des.h
	3	* Author: Brad Conte (brad AT bradconte.com)
	4	* Copyright:
	5	* Disclaimer: This code is presented "as is" without any guarantees.
	6	* Details: Defines the API for the corresponding DES implementation.
	7	Note that encryption and decryption are defined by how
	8	the key setup is performed, the actual en/de-cryption is
	9	performed by the same function.
	10	*********************************************************************/
	11
	12	#ifndef DES_H
	13	#define DESH
	14
	15	/************************* HEADER FILES *************************/
	16	#include <stddef.h>
	17
	18	/**************************** MACROS ****************************/
	19	#define DES_BLOCK_SIZE 8 // DES operates on 8 bytes at a time
	20
	21	/************************** DATA TYPES **************************/
	22	typedef unsigned char BYTE; // 8-bit byte
	23	typedef unsigned int WORD; // 32-bit word, change to "long" for 16-bit machines
	24
	25	typedef enum {
	26	DES_ENCRYPT,
	27	DES_DECRYPT
	28	} DES_MODE;
	29
	30	/********************* FUNCTION DECLARATIONS ********************/
	31	void des_key_setup(const BYTE key[], BYTE schedule[][6], DES_MODE mode);
	32	void des_crypt(const BYTE in[], BYTE out[], const BYTE key[][6]);
	33
	34	void three_des_key_setup(const BYTE key[], BYTE schedule[][16][6], DES_MODE mode);
	35	void three_des_crypt(const BYTE in[], BYTE out[], const BYTE key[][16][6]);
	36
	37	#endif // DES_H