rsa.h

本程序为ST公司开发的源代码

/*------------------------------------------------------------------------------------------------
  Software implementation of RSA using Montgomery Multiplication
------------------------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------------------------
  Authors: Guido Bertoni,Luigi Sportiello
  STMicroelectronics
  AST - Crypto Group
  Date: 13/7/2005
  Date: 14/7/2005 Guido Bertoni, improvement in Montgomery main part of multiplication is now done
				  using 64 bit integer
  Date: 01/8/2005 Luigi Sportiello, updated all the code according to the new key structures
				  added functions to initialize key structures
				  added functions to free memory allocated for the keys
				  added some useful constants, renamed the functions, code cleaning
  Date: 02/8/2005 Luigi Sportiello, fixed up a possible bug
				  added modular exponentiation with windows of 2 bits and 4 bits
  Date: 04/8/2005 Luigi Sportiello, added decryption with CRT,
				  decryption with CRT and windows of 2 bits and 4 bits
  Date: 30/8/2005 Luigi Sportiello, fixed a bug in exponentiation with windows
  Date: 04/4/2006 Luigi Sportiello, added a check on input in RSAEP,RSASV1,RSADP,RSASP1 (Change1)
  Date: 23/6/2006 Luigi Sportiello, rearranged the code to avoid duplications
------------------------------------------------------------------------------------------------*/

#ifndef __CRL_RSA_H__
#define __CRL_RSA_H__

//---------**- Types definition -**---------------------------------------------------------------

#define CRL_W8 unsigned char	//CRL_W8 will be a variable of 8 bits
#define CRL_W32 unsigned long	//CRL_W32 will be a variable of 32 bits


//Used to store RSA private key
typedef struct
{
	int modulus_size;			//Number of bytes of the module
	CRL_W8 *modulus;			//Module 'n'
	int publicExponent_size;	//Number of bytes of the public exponent
	CRL_W8 *publicExponent;		//Public exponent 'e'
	int privateExponent_size;	//Number of bytes of the private exponent
	CRL_W8 *privateExponent;	//Private exp 慸