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/*
* Copyright 1999-2002 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Cylink Corporation © 1998
*
* This software is licensed by Cylink to the Internet Software Consortium to
* promote implementation of royalty free public key cryptography within IETF
* standards. Cylink wishes to expressly thank the contributions of Dr.
* Martin Hellman, Whitfield Diffie, Ralph Merkle and Stanford University for
* their contributions to Internet Security. In accordance with the terms of
* this license, ISC is authorized to distribute and sublicense this software
* for the practice of IETF standards.
*
* The software includes BigNum, written by Colin Plumb and licensed by Philip
* R. Zimmermann for royalty free use and distribution with Cylink's
* software. Use of BigNum as a stand alone product or component is
* specifically prohibited.
*
* Disclaimer of All Warranties. THIS SOFTWARE IS BEING PROVIDED "AS IS",
* WITHOUT ANY EXPRESSED OR IMPLIED WARRANTY OF ANY KIND WHATSOEVER. IN
* PARTICULAR, WITHOUT LIMITATION ON THE GENERALITY OF THE FOREGOING, CYLINK
* MAKES NO REPRESENTATION OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
* PURPOSE.
*
* Cylink or its representatives shall not be liable for tort, indirect,
* special or consequential damages such as loss of profits or loss of
* goodwill from the use or inability to use the software for any purpose or
* for any reason whatsoever.
*
* EXPORT LAW: Export of the Foundations Suite may be subject to compliance
* with the rules and regulations promulgated from time to time by the Bureau
* of Export Administration, United States Department of Commerce, which
* restrict the export and re-export of certain products and technical data.
* If the export of the Foundations Suite is controlled under such rules and
* regulations, then the Foundations Suite shall not be exported or
* re-exported, directly or indirectly, (a) without all export or re-export
* licenses and governmental approvals required by any applicable laws, or (b)
* in violation of any applicable prohibition against the export or re-export
* of any part of the Foundations Suite. All export licenses for software
* containing the Foundations Suite are the sole responsibility of the licensee.
*/
/****************************************************************************
* FILENAME: cencrint.h PRODUCT NAME: CRYPTOGRAPHIC TOOLKIT
*
* FILE STATUS:
*
* DESCRIPTION: Cryptographic Toolkit Internal Functions Header File
*
* USAGE: File should be included to use Toolkit Functions
*
*
* Copyright (c) Cylink Corporation 1994. All rights reserved.
*
* REVISION HISTORY:
*
* 23 Aug 94 KPZ Initial release
* 24 Sep 94 KPZ Added prototypes of internal functions
* 14 Oct 94 GKL Second version (big endian support)
* 08 Dec 94 GKL Added YIELD_context to Expo, VerPrime and GenPrime
*
****************************************************************************/
#ifndef CENCRINT_H /* Prevent multiple inclusions of same header file */
#define CENCRINT_H
#pragma ident "%Z%%M% %I% %E% SMI"
/****************************************************************************
* INCLUDE FILES
****************************************************************************/
/* system files */
#include <sys/types.h>
#include "cylink.h"
#include "ctk_endian.h"
#include "toolkit.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Compute a modulo */
int PartReduct( u_int16_t X_bytes, ord *X,
u_int16_t P_bytes, ord *P,
ord *Z );
/* Compute a modulo product */
int Mul( u_int16_t X_bytes, ord *X,
u_int16_t Y_bytes, ord *Y,
u_int16_t P_bytes, ord *P,
ord *Z );
/*Compute a modulo squaring*/
int Mul_Squr( u_int16_t X_bytes, ord *X,
u_int16_t P_bytes, ord *P,
ord *Z );
int Square( u_int16_t X_bytes,
ord *X,
u_int16_t P_bytes,
ord *P,
ord *Z );
/*Compare two array*/
int Comp_Mont ( ord *X, ord *P, u_int16_t P_longs );
/*Compute invers element*/
ord Inv_Mont ( ord x );
/*Modulo by the Mongomery*/
void PartReduct_Mont( ord *X, u_int16_t P_bytes, ord *P, ord inv );
/*Computes squaring by the Mongomery modulo*/
int Mul_Squr_Mont(ord *X, u_int16_t P_bytes,
ord *P, ord *Z,
ord inv );
/*Computes multiply by the montgomery modulo*/
int Mul_Mont( ord *X, ord *Y,
u_int16_t P_bytes, ord *P,
ord *Z, ord inv );
/* Compute a modulo exponent */
int Expo( u_int16_t X_bytes, ord *X,
u_int16_t Y_bytes, ord *Y,
u_int16_t P_bytes, ord *P,
ord *Z );
/*Compute double exponent */
int DoubleExpo( u_int16_t X1_bytes,ord *X1,
u_int16_t Y1_bytes,ord *Y1,
u_int16_t X2_bytes,ord *X2,
u_int16_t Y2_bytes,ord *Y2,
u_int16_t P_bytes,ord *P,
ord *Z);
/* Compute a modulo inverse element */
int Inverse( u_int16_t X_bytes, ord *X,
u_int16_t P_bytes, ord *P,
ord *Z );
/* Verify Pseudo Prime number */
int VerPrime( u_int16_t P_bytes, ord *P,
u_int16_t k, ord *RVAL,
YIELD_context *yield_cont ); /*TKL00601*/
/* Generate Random Pseudo Prime number */
int GenPrime( u_int16_t P_bytes, ord *P,
u_int16_t k, ord *RVAL,
YIELD_context *yield_cont ); /*TKL00601*/
/* Transfer bytes to u_int32_t */
void ByteLong( uchar *X,
u_int16_t X_bytes,
u_int32_t *Y );
/* Transfer u_int32_t to bytes */
void LongByte( u_int32_t *X,
u_int16_t X_bytes,
uchar *Y );
/* Transfer bytes to ord */
void ByteOrd( uchar *X,
u_int16_t X_bytes,
ord *Y );
/* Transfer ord to bytes */
void OrdByte( ord *X,
u_int16_t X_bytes,
uchar *Y );
/* Find the left most non zero bit */
int LeftMostBit ( ord X );
/* Find the left most element */
int LeftMostEl( ord *X,
u_int16_t len_X );
/* Shift array to rigth by n_bit */
void RShiftL( ord *X,
u_int16_t len_X,
u_int16_t n_bit );
/* Shifts array to left by n_bit */
void LShiftL( ord *X,
u_int16_t len_X,
u_int16_t n_bit );
/* Find the value of bit */
int BitValue( ord *X,
u_int16_t n_bits );
/* Perform byte reversal on an array of ordinar type (longword or shortword) */
void ByteSwap( uchar *X,
u_int16_t X_len );
/* Perform byte reversal on an array from LSB to MSB */
void BigSwap( uchar *X,
u_int16_t X_len );
/* Perform byte reversal on an array of longword */
void ByteSwap32( uchar *X,
u_int16_t X_len );
/* Perform short reversal on an array of longword */
void WordSwap( uchar *X,
u_int16_t X_len );
/* Perform SHS transformation */
void shaTransform( u_int32_t *state,
const uchar *block );
/* Compute modulo addition
int Add( ord *X,
ord *Y,
u_int16_t P_len,
ord *P,
ord *Z );
*/
int Add( ord *X,
ord *Y,
u_int16_t P_len,
ord *P );
/* Initialize Secure Hash Function for generate
random number for DSS */
void SHAInitK( SHA_context *hash_context );
/* Set parity bits */
void SetKeyParity( uchar *key );
/* Find a least significant non zero bit
and sfift array to right */
int RShiftMostBit( ord *a, u_int16_t len );
/*Compute great common divisor */
int SteinGCD( ord *m, ord *b, u_int16_t len );
/* Compute a modulo and divisor */
int DivRem( u_int16_t X_bytes, ord *X,
u_int16_t P_bytes, ord *P,
ord *Z, ord *D );
/* Generate random number */
int MyGenRand( u_int16_t A_bytes, ord *A,
ord *RVAL);
/* Compute a Secure Hash Function */
int MySHA( uchar *message,
u_int16_t message_bytes,
uchar *hash_result );
/* Finalize Secure Hash Function */
int MySHAFinal( SHA_context *hash_context,
uchar *hash_result );
void shaTransform_new( u_int32_t *state,
uchar *block );
#ifdef __cplusplus
}
#endif
#endif /* CENCRINT_H */
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