mac3.h File Reference

Header file for ISO 9797 MAC algorithm 3 using DES encryption. More...

Go to the source code of this file.

Macros
#define	CRYPTOGRAPHY_MAC3_H_

Functions
void	des_mac3_checksum (int length, unsigned char buff[8], unsigned char *data, unsigned char *key)
	Calculates ISO 9797 MAC algorithm 3 using DES encryption with Padding Method 2, Initial Transformation 1, and Output transformation 3. More...

Detailed Description

Header file for ISO 9797 MAC algorithm 3 using DES encryption.

Author

Khoa Nguyen

This header file provides an API for calculating the checksum using the ISO 9797 MAC algorithm 3 with DES encryption.

Macro Definition Documentation

CRYPTOGRAPHY_MAC3_H_

#define CRYPTOGRAPHY_MAC3_H_

Function Documentation

des_mac3_checksum()

void des_mac3_checksum	(	int	length,
		unsigned char	buff[8],
		unsigned char *	data,
		unsigned char *	key
	)

Calculates ISO 9797 MAC algorithm 3 using DES encryption with Padding Method 2, Initial Transformation 1, and Output transformation 3.

Parameters

length	Length of the input data.
buff	Buffer to store the calculated checksum (8 bytes).
data	Input data for which the checksum is to be calculated.
key	Encryption key used in the calculation (16 bytes).