des.h File Reference

Triple DES (3DES) encryption and decryption library header file. More...

#include "typedef.h"

Go to the source code of this file.

Data Structures
struct	des_context

Macros
#define	CRYPTOGRAPHY_DES3_H_
#define	MBEDTLS_DES_ENCRYPT   1
#define	MBEDTLS_DES_DECRYPT   0
#define	MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH   0
#define	USE_DES_EN   1
#define	USE_DES_ECB_EN   1
#define	USE_DES_CBC_EN   0
#define	USE_3DES_EN   1
#define	USE_3DES_ECB_EN   0
#define	USE_3DES_CBC_EN   1
#define	DES_INPUT_LENGTH   -0x0002
#define	MBEDTLS_DES_KEY_SIZE   8
#define	DES_KEY_SIZE   (8)
#define	DES3_KEY2_SIZE   (16)
#define	DES3_KEY3_SIZE   (24)

Functions
unsigned int	des_ecb_encrypt (unsigned char *pout, unsigned char *pdata, unsigned int nlen, unsigned char *pkey)
unsigned int	des_ecb_decrypt (unsigned char *pout, unsigned char *pdata, unsigned int nlen, unsigned char *pkey)
unsigned int	des3_cbc_encrypt (unsigned char *pout, unsigned char *pdata, unsigned int nlen, unsigned char *pkey, unsigned int klen, unsigned char *piv)
unsigned int	des3_cbc_decrypt (unsigned char *pout, unsigned char *pdata, unsigned int nlen, unsigned char *pkey, unsigned int klen, unsigned char *piv)

Detailed Description

Triple DES (3DES) encryption and decryption library header file.

Author

Khoa Nguyen

This header file provides APIs for Triple DES (3DES) encryption and decryption operations. The library supports both DES and 3DES algorithms, as well as Electronic Codebook (ECB) and Cipher Block Chaining (CBC) modes.

Supported algorithms and modes:

• DES-ECB
• DES-CBC
• 3DES-ECB
• 3DES-CBC

Macro Definition Documentation

CRYPTOGRAPHY_DES3_H_

#define CRYPTOGRAPHY_DES3_H_

DES3_KEY2_SIZE

#define DES3_KEY2_SIZE   (16)

DES3_KEY3_SIZE

#define DES3_KEY3_SIZE   (24)

DES_INPUT_LENGTH

#define DES_INPUT_LENGTH   -0x0002

DES_KEY_SIZE

#define DES_KEY_SIZE   (8)

MBEDTLS_DES_DECRYPT

#define MBEDTLS_DES_DECRYPT   0

MBEDTLS_DES_ENCRYPT

#define MBEDTLS_DES_ENCRYPT   1

MBEDTLS_DES_KEY_SIZE

#define MBEDTLS_DES_KEY_SIZE   8

MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH

#define MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH   0

USE_3DES_CBC_EN

#define USE_3DES_CBC_EN   1

USE_3DES_ECB_EN

#define USE_3DES_ECB_EN   0

USE_3DES_EN

#define USE_3DES_EN   1

USE_DES_CBC_EN

#define USE_DES_CBC_EN   0

USE_DES_ECB_EN

#define USE_DES_ECB_EN   1

USE_DES_EN

#define USE_DES_EN   1

Function Documentation

des3_cbc_decrypt()

unsigned int des3_cbc_decrypt	(	unsigned char *	pout,
		unsigned char *	pdata,
		unsigned int	nlen,
		unsigned char *	pkey,
		unsigned int	klen,
		unsigned char *	piv
	)

des3_cbc_encrypt()

unsigned int des3_cbc_encrypt	(	unsigned char *	pout,
		unsigned char *	pdata,
		unsigned int	nlen,
		unsigned char *	pkey,
		unsigned int	klen,
		unsigned char *	piv
	)

des_ecb_decrypt()

unsigned int des_ecb_decrypt	(	unsigned char *	pout,
		unsigned char *	pdata,
		unsigned int	nlen,
		unsigned char *	pkey
	)

des_ecb_encrypt()

unsigned int des_ecb_encrypt	(	unsigned char *	pout,
		unsigned char *	pdata,
		unsigned int	nlen,
		unsigned char *	pkey
	)