Add a demo that reimplements the RSAref glue in form of a dynamically

librsaref.so.gnu

librsaref.so.tru64

librsaref.so.solaris

librsaref.so.irix

librsaref.so.hpux32

librsaref.so.hpux64

librsaref.so.aix

librsaref.exp

doc

install

rdemo

source

LIBNAME=	librsaref

SRC=		rsaref.c

OBJ=		rsaref.o

HEADER=		rsaref.h

CC=		gcc

PIC=		-fPIC

CFLAGS=		-g -I../../../include $(PIC) -DENGINE_DYNAMIC_SUPPORT

AR=		ar r

RANLIB=		ranlib

LIB=		$(LIBNAME).a

SHLIB=		$(LIBNAME).so

all:

		@echo 'Please choose a system to build on:'

		@echo ''

		@echo 'tru64:    Tru64 Unix, Digital Unix, Digital OSF/1'

		@echo 'solaris:  Solaris'

		@echo 'irix:     IRIX'

		@echo 'hpux32:   32-bit HP/UX'

		@echo 'hpux64:   64-bit HP/UX'

		@echo 'aix:      AIX'

		@echo 'gnu:      Generic GNU-based system (gcc and GNU ld)'

		@echo ''

FORCE.install:

install:	FORCE.install

		cd install; \

			make -f unix/makefile INCL='-I. -I/usr/include' CFLAGS='$(INCL) -O -c' RSAREFLIB=librsaref.a librsaref.a

gnu:		install $(SHLIB).gnu

tru64:		install $(SHLIB).tru64

solaris:	install $(SHLIB).solaris

irix:		install $(SHLIB).irix

hpux32:		install $(SHLIB).hpux32

hpux64:		install $(SHLIB).hpux64

aix:		install $(SHLIB).aix

$(LIB):		$(OBJ)

		$(AR) $(LIB) $(OBJ)

		- $(RANLIB) $(LIB)

LINK_SO=	\

  ld -r -o $(LIBNAME).o $$ALLSYMSFLAGS $(LIB) install/librsaref.a && \

  (nm -Pg $(LIBNAME).o | grep ' [BD] ' | cut -f1 -d' ' > $(LIBNAME).exp; \

   $$SHAREDCMD $$SHAREDFLAGS -o $(SHLIB) $(LIBNAME).o -L ../../.. -lcrypto)

$(SHLIB).gnu:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='--whole-archive' \

		SHAREDFLAGS='-shared -Wl,-soname=$(SHLIB)' \

		SHAREDCMD='$(CC)'; \

		$(LINK_SO)

		touch $(SHLIB).gnu

$(SHLIB).tru64:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='-all' \

		SHAREDFLAGS='-shared' \

		SHAREDCMD='$(CC)'; \

		$(LINK_SO)

		touch $(SHLIB).tru64

$(SHLIB).solaris:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='-z allextract' \

		SHAREDFLAGS='-G -h $(SHLIB)' \

		SHAREDCMD='$(CC)'; \

		$(LINK_SO)

		touch $(SHLIB).solaris

$(SHLIB).irix:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='-all' \

		SHAREDFLAGS='-shared -Wl,-soname,$(SHLIB)' \

		SHAREDCMD='$(CC)'; \

		$(LINK_SO)

		touch $(SHLIB).irix

$(SHLIB).hpux32:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='-Fl' \

		SHAREDFLAGS='+vnocompatwarnings -b -z +s +h $(SHLIB)' \

		SHAREDCMD='/usr/ccs/bin/ld'; \

		$(LINK_SO)

		touch $(SHLIB).hpux32

$(SHLIB).hpux64:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='+forceload' \

		SHAREDFLAGS='-b -z +h $(SHLIB)' \

		SHAREDCMD='/usr/ccs/bin/ld'; \

		$(LINK_SO)

		touch $(SHLIB).hpux64

$(SHLIB).aix:	$(LIB) install/librsaref.a

		ALLSYMSFLAGS='-bnogc' \

		SHAREDFLAGS='-G -bE:$(LIBNAME).exp -bM:SRE' \

		SHAREDCMD='$(CC)'; \

		$(LINK_SO)

		touch $(SHLIB).aix

librsaref.so is a demonstration dynamic engine that does RSA

operations using the old RSAref 2.0 implementation.

To make proper use of this engine, you must download RSAref 2.0

(search the web for rsaref.tar.Z for example) and unpack it in this

directory, so you'll end up having the subdirectories "install" and

"source" among others.

To build, do the following:

	make

This will list a number of available targets to choose from.  Most of

them are architecture-specific.  The exception is "gnu" which is to be

used on systems where GNU ld and gcc have been installed in such a way

that gcc uses GNU ld to link together programs and shared libraries.

The make file assumes you use gcc.  To change that, just reassign CC:

	make CC=cc

The result is librsaref.so, which you can copy to any place you wish.

/* Demo of how to construct your own engine and using it.  The basis of this

   engine is RSAref, an old reference of the RSA algorithm which can still

   be found a little here and there. */

#include <stdio.h>

#if 0

#include "./source/global.h"

#include "./source/rsaref.h"

#endif

#include "rsaref.h"

#include <openssl/err.h>

#include <openssl/bn.h>

#include <openssl/engine.h>

/* Constants used when creating the ENGINE */

static const char *engine_rsaref_id = "rsaref";

static const char *engine_rsaref_name = "RSAref engine support";

static int rsaref_destroy(ENGINE *e);

static int rsaref_init(ENGINE *e);

static int rsaref_finish(ENGINE *e);

#if 0

static int rsaref_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()); 

#endif

static int rsaref_private_decrypt(int len, const unsigned char *from,

	unsigned char *to, RSA *rsa, int padding);

static int rsaref_private_encrypt(int len, const unsigned char *from,

	unsigned char *to, RSA *rsa, int padding);

static int rsaref_public_encrypt(int len, const unsigned char *from,

	unsigned char *to, RSA *rsa, int padding);

static int rsaref_public_decrypt(int len, const unsigned char *from,

	unsigned char *to, RSA *rsa, int padding);

static int bnref_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,const BIGNUM *m,

			  BN_CTX *ctx, BN_MONT_CTX *m_ctx);

static int rsaref_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);

static const ENGINE_CMD_DEFN rsaref_cmd_defns[] = {

	{0, NULL, NULL, 0}

	};

static RSA_METHOD rsaref_rsa =

{

  "RSAref PKCS#1 RSA",

  rsaref_public_encrypt,

  rsaref_public_decrypt,

  rsaref_private_encrypt,

  rsaref_private_decrypt,

  rsaref_mod_exp,

  bnref_mod_exp,

  NULL,

  NULL,

  0,

  NULL,

  NULL,

  NULL

};

#ifndef OPENSSL_NO_ERR

/* Error function codes for use in rsaref operation */

#define RSAREF_F_BNREF_MOD_EXP				 100

#define RSAREF_F_RSAREF_BN2BIN				 101

#define RSAREF_F_RSA_BN2BIN				 102

#define RSAREF_F_RSA_PRIVATE_DECRYPT			 103

#define RSAREF_F_RSA_PRIVATE_ENCRYPT			 104

#define RSAREF_F_RSA_PUBLIC_DECRYPT			 105

#define RSAREF_F_RSA_PUBLIC_ENCRYPT			 106

#define RSAREF_F_RSAREF_MOD_EXP				 108

#define RSAREF_F_RSAREF_PRIVATE_DECRYPT			 109

#define RSAREF_F_RSAREF_PRIVATE_ENCRYPT			 110

#define RSAREF_F_RSAREF_PUBLIC_DECRYPT			 111

#define RSAREF_F_RSAREF_PUBLIC_ENCRYPT			 112

/* Error reason codes */

#define RSAREF_R_CONTENT_ENCODING			 0x0400

#define RSAREF_R_DATA					 0x0401

#define RSAREF_R_DIGEST_ALGORITHM			 0x0402

#define RSAREF_R_ENCODING				 0x0403

#define RSAREF_R_ENCRYPTION_ALGORITHM			 0x040d

#define RSAREF_R_KEY					 0x0404

#define RSAREF_R_KEY_ENCODING				 0x0405

#define RSAREF_R_LEN					 0x0406

#define RSAREF_R_MODULUS_LEN				 0x0407

#define RSAREF_R_NEED_RANDOM				 0x0408

#define RSAREF_R_PRIVATE_KEY				 0x0409

#define RSAREF_R_PUBLIC_KEY				 0x040a

#define RSAREF_R_SIGNATURE				 0x040b

#define RSAREF_R_SIGNATURE_ENCODING			 0x040c

static ERR_STRING_DATA rsaref_str_functs[] =

	{

	/* This first element is changed to match the dynamic 'lib' number */

{ERR_PACK(0,0,0),				"rsaref engine code"},

{ERR_PACK(0,RSAREF_F_BNREF_MOD_EXP,0),	"BN_REF_MOD_EXP"},

{ERR_PACK(0,RSAREF_F_RSAREF_BN2BIN,0),	"RSAREF_BN2BIN"},

{ERR_PACK(0,RSAREF_F_RSA_BN2BIN,0),	"RSA_BN2BIN"},

{ERR_PACK(0,RSAREF_F_RSA_PRIVATE_DECRYPT,0),	"RSA_private_decrypt"},

{ERR_PACK(0,RSAREF_F_RSA_PRIVATE_ENCRYPT,0),	"RSA_private_encrypt"},

{ERR_PACK(0,RSAREF_F_RSA_PUBLIC_DECRYPT,0),	"RSA_public_decrypt"},

{ERR_PACK(0,RSAREF_F_RSA_PUBLIC_ENCRYPT,0),	"RSA_public_encrypt"},

{ERR_PACK(0,RSAREF_F_RSAREF_MOD_EXP,0),	"RSA_REF_MOD_EXP"},

{ERR_PACK(0,RSAREF_F_RSAREF_PRIVATE_DECRYPT,0),	"RSA_REF_PRIVATE_DECRYPT"},

{ERR_PACK(0,RSAREF_F_RSAREF_PRIVATE_ENCRYPT,0),	"RSA_REF_PRIVATE_ENCRYPT"},

{ERR_PACK(0,RSAREF_F_RSAREF_PUBLIC_DECRYPT,0),	"RSA_REF_PUBLIC_DECRYPT"},

{ERR_PACK(0,RSAREF_F_RSAREF_PUBLIC_ENCRYPT,0),	"RSA_REF_PUBLIC_ENCRYPT"},

{RSAREF_R_CONTENT_ENCODING               ,"content encoding"},

{RSAREF_R_DATA                           ,"data"},

{RSAREF_R_DIGEST_ALGORITHM               ,"digest algorithm"},

{RSAREF_R_ENCODING                       ,"encoding"},

{RSAREF_R_ENCRYPTION_ALGORITHM           ,"encryption algorithm"},

{RSAREF_R_KEY                            ,"key"},

{RSAREF_R_KEY_ENCODING                   ,"key encoding"},

{RSAREF_R_LEN                            ,"len"},

{RSAREF_R_MODULUS_LEN                    ,"modulus len"},

{RSAREF_R_NEED_RANDOM                    ,"need random"},

{RSAREF_R_PRIVATE_KEY                    ,"private key"},

{RSAREF_R_PUBLIC_KEY                     ,"public key"},

{RSAREF_R_SIGNATURE                      ,"signature"},

{RSAREF_R_SIGNATURE_ENCODING             ,"signature encoding"},

{0,NULL}

	};

/* The library number we obtain dynamically from the ERR code */

static int rsaref_err_lib = -1;

#define RSAREFerr(f,r) ERR_PUT_error(rsaref_err_lib,(f),(r),__FILE__,__LINE__)

static void rsaref_load_error_strings(void)

	{

	if(rsaref_err_lib < 0)

		{

		if((rsaref_err_lib = ERR_get_next_error_library()) <= 0)

			return;

		rsaref_str_functs[0].error = ERR_PACK(rsaref_err_lib,0,0);

		ERR_load_strings(rsaref_err_lib, rsaref_str_functs);

		}

	}

static void rsaref_unload_error_strings(void)

	{

	if(rsaref_err_lib >= 0)

		{

		ERR_unload_strings(rsaref_err_lib, rsaref_str_functs);

		rsaref_err_lib = -1;

		}

	}

#else

#define RSAREFerr(f,r)					/* NOP */

static void rsaref_load_error_strings(void) { }		/* NOP */

static void rsaref_unload_error_strings(void) { }	/* NOP */

#endif

/* Now, to our own code */

static int bind_rsaref(ENGINE *e)

	{

	const RSA_METHOD *meth1;

	if(!ENGINE_set_id(e, engine_rsaref_id)

		|| !ENGINE_set_name(e, engine_rsaref_name)

		|| !ENGINE_set_RSA(e, &rsaref_rsa)

		|| !ENGINE_set_destroy_function(e, rsaref_destroy)

		|| !ENGINE_set_init_function(e, rsaref_init)

		|| !ENGINE_set_finish_function(e, rsaref_finish)

		/* || !ENGINE_set_ctrl_function(e, rsaref_ctrl) */

		/* || !ENGINE_set_cmd_defns(e, rsaref_cmd_defns) */)

		return 0;

	/* Ensure the rsaref error handling is set up */

	rsaref_load_error_strings();

	return 1;

	}

#ifdef ENGINE_DYNAMIC_SUPPORT

static int bind_helper(ENGINE *e, const char *id)

	{

	if(id && (strcmp(id, engine_rsaref_id) != 0))

		return 0;

	if(!bind_rsaref(e))

		return 0;

	return 1;

	}       

IMPLEMENT_DYNAMIC_CHECK_FN()

IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)

#else

static ENGINE *engine_rsaref(void)

	{

	ENGINE *ret = ENGINE_new();

	if(!ret)

		return NULL;

	if(!bind_rsaref(ret))

		{

		ENGINE_free(ret);

		return NULL;

		}

	return ret;

	}

void ENGINE_load_rsaref(void)

	{

	/* Copied from eng_[openssl|dyn].c */

	ENGINE *toadd = engine_rsaref();

	if(!toadd) return;

	ENGINE_add(toadd);

	ENGINE_free(toadd);

	ERR_clear_error();

	}

#endif

/* Initiator which is only present to make sure this engine looks available */

static int rsaref_init(ENGINE *e)

	{

	return 1;

	}

/* Finisher which is only present to make sure this engine looks available */

static int rsaref_finish(ENGINE *e)

	{

	return 1;

	}

/* Destructor (complements the "ENGINE_ncipher()" constructor) */

static int rsaref_destroy(ENGINE *e)

	{

	rsaref_unload_error_strings();

	return 1;

	}

static int rsaref_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)

	{

	RSAREFerr(RSAREF_F_RSAREF_MOD_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);

	return(0);

	}

static int bnref_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,

			  const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)

	{

	RSAREFerr(RSAREF_F_BNREF_MOD_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);

	return(0);

	}

/* unsigned char *to:  [max]    */

static int RSAref_bn2bin(BIGNUM *from, unsigned char *to, int max)

	{

	int i;

	i=BN_num_bytes(from);

	if (i > max)

		{

		RSAREFerr(RSAREF_F_RSAREF_BN2BIN,RSAREF_R_LEN);

		return(0);

		}

	memset(to,0,(unsigned int)max);

	if (!BN_bn2bin(from,&(to[max-i])))

		return(0);

	return(1);

	}

#ifdef undef

/* unsigned char *from:  [max]    */

static BIGNUM *RSAref_bin2bn(unsigned char *from, BIGNUM *to, int max)

	{

	int i;

	BIGNUM *ret;

	for (i=0; i<max; i++)

		if (from[i]) break;

	ret=BN_bin2bn(&(from[i]),max-i,to);

	return(ret);

	}

static int RSAref_Public_ref2eay(RSArefPublicKey *from, RSA *to)

	{

	to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN);

	to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN);

	if ((to->n == NULL) || (to->e == NULL)) return(0);

	return(1);

	}

#endif

static int RSAref_Public_eay2ref(RSA *from, RSArefPublicKey *to)

	{

	to->bits=BN_num_bits(from->n);

	if (!RSAref_bn2bin(from->n,to->m,RSAref_MAX_LEN)) return(0);

	if (!RSAref_bn2bin(from->e,to->e,RSAref_MAX_LEN)) return(0);

	return(1);

	}

#ifdef undef

static int RSAref_Private_ref2eay(RSArefPrivateKey *from, RSA *to)

	{

	if ((to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN)) == NULL)

		return(0);

	if ((to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN)) == NULL)

		return(0);

	if ((to->d=RSAref_bin2bn(from->d,NULL,RSAref_MAX_LEN)) == NULL)

		return(0);

	if ((to->p=RSAref_bin2bn(from->prime[0],NULL,RSAref_MAX_PLEN)) == NULL)

		return(0);

	if ((to->q=RSAref_bin2bn(from->prime[1],NULL,RSAref_MAX_PLEN)) == NULL)

		return(0);

	if ((to->dmp1=RSAref_bin2bn(from->pexp[0],NULL,RSAref_MAX_PLEN))

		== NULL)

		return(0);

	if ((to->dmq1=RSAref_bin2bn(from->pexp[1],NULL,RSAref_MAX_PLEN))

		== NULL)

		return(0);

	if ((to->iqmp=RSAref_bin2bn(from->coef,NULL,RSAref_MAX_PLEN)) == NULL)

		return(0);

	return(1);

	}

#endif

static int RSAref_Private_eay2ref(RSA *from, RSArefPrivateKey *to)

	{

	to->bits=BN_num_bits(from->n);

	if (!RSAref_bn2bin(from->n,to->m,RSAref_MAX_LEN)) return(0);

	if (!RSAref_bn2bin(from->e,to->e,RSAref_MAX_LEN)) return(0);

	if (!RSAref_bn2bin(from->d,to->d,RSAref_MAX_LEN)) return(0);

	if (!RSAref_bn2bin(from->p,to->prime[0],RSAref_MAX_PLEN)) return(0);

	if (!RSAref_bn2bin(from->q,to->prime[1],RSAref_MAX_PLEN)) return(0);

	if (!RSAref_bn2bin(from->dmp1,to->pexp[0],RSAref_MAX_PLEN)) return(0);

	if (!RSAref_bn2bin(from->dmq1,to->pexp[1],RSAref_MAX_PLEN)) return(0);

	if (!RSAref_bn2bin(from->iqmp,to->coef,RSAref_MAX_PLEN)) return(0);

	return(1);

	}

static int rsaref_private_decrypt(int len, const unsigned char *from, unsigned char *to,

	     RSA *rsa, int padding)

	{

	int i,outlen= -1;

	RSArefPrivateKey RSAkey;

	if (!RSAref_Private_eay2ref(rsa,&RSAkey))

		goto err;

	if ((i=RSAPrivateDecrypt(to,&outlen,(unsigned char *)from,len,&RSAkey)) != 0)

		{

		RSAREFerr(RSAREF_F_RSA_REF_PRIVATE_DECRYPT,i);

		outlen= -1;

		}

err:

	memset(&RSAkey,0,sizeof(RSAkey));

	return(outlen);

	}

static int rsaref_private_encrypt(int len, const unsigned char *from, unsigned char *to,

	     RSA *rsa, int padding)

	{

	int i,outlen= -1;

	RSArefPrivateKey RSAkey;

	if (padding != RSA_PKCS1_PADDING)

		{

		RSAREFerr(RSAREF_F_RSA_REF_PRIVATE_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);

		goto err;

	}

	if (!RSAref_Private_eay2ref(rsa,&RSAkey))

		goto err;

	if ((i=RSAPrivateEncrypt(to,&outlen,(unsigned char *)from,len,&RSAkey)) != 0)

		{

		RSAREFerr(RSAREF_F_RSA_REF_PRIVATE_ENCRYPT,i);

		outlen= -1;

		}

err:

	memset(&RSAkey,0,sizeof(RSAkey));

	return(outlen);

	}

static int rsaref_public_decrypt(int len, const unsigned char *from, unsigned char *to,

	     RSA *rsa, int padding)

	{

	int i,outlen= -1;

	RSArefPublicKey RSAkey;

	if (!RSAref_Public_eay2ref(rsa,&RSAkey))

		goto err;

	if ((i=RSAPublicDecrypt(to,&outlen,(unsigned char *)from,len,&RSAkey)) != 0)

		{

		RSAREFerr(RSAREF_F_RSA_REF_PUBLIC_DECRYPT,i);

		outlen= -1;

		}

err:

	memset(&RSAkey,0,sizeof(RSAkey));

	return(outlen);

	}

static int rsaref_public_encrypt(int len, const unsigned char *from, unsigned char *to,

	     RSA *rsa, int padding)

	{

	int outlen= -1;

	int i;

	RSArefPublicKey RSAkey;

	RSARandomState rnd;

	unsigned char buf[16];

	if (padding != RSA_PKCS1_PADDING && padding != RSA_SSLV23_PADDING) 

		{

		RSAREFerr(RSAREF_F_RSA_REF_PUBLIC_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);

		goto err;

		}

	R_RandomInit(&rnd);

	R_GetRandomBytesNeeded((unsigned int *)&i,&rnd);

	while (i > 0)

		{

		if (RAND_bytes(buf,16) <= 0)

			goto err;

		R_RandomUpdate(&rnd,buf,(unsigned int)((i>16)?16:i));

		i-=16;

		}

	if (!RSAref_Public_eay2ref(rsa,&RSAkey))

		goto err;

	if ((i=RSAPublicEncrypt(to,&outlen,(unsigned char *)from,len,&RSAkey,&rnd)) != 0)

		{

		RSAREFerr(RSAREF_F_RSA_REF_PUBLIC_ENCRYPT,i);

		outlen= -1;

		goto err;

		}

err:

	memset(&RSAkey,0,sizeof(RSAkey));

	R_RandomFinal(&rnd);

	memset(&rnd,0,sizeof(rnd));

	return(outlen);

	}

/* rsaref/rsaref.h */

/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)

 * All rights reserved.

 *

 * This package is an SSL implementation written

 * by Eric Young (eay@cryptsoft.com).

 * The implementation was written so as to conform with Netscapes SSL.

 * 

 * This library is free for commercial and non-commercial use as long as

 * the following conditions are aheared to.  The following conditions

 * apply to all code found in this distribution, be it the RC4, RSA,

 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation

 * included with this distribution is covered by the same copyright terms

 * except that the holder is Tim Hudson (tjh@cryptsoft.com).

 * 

 * Copyright remains Eric Young's, and as such any Copyright notices in

 * the code are not to be removed.

 * If this package is used in a product, Eric Young should be given attribution

 * as the author of the parts of the library used.

 * This can be in the form of a textual message at program startup or

 * in documentation (online or textual) provided with the package.

 * 

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. All advertising materials mentioning features or use of this software

 *    must display the following acknowledgement:

 *    "This product includes cryptographic software written by

 *     Eric Young (eay@cryptsoft.com)"

 *    The word 'cryptographic' can be left out if the rouines from the library

 *    being used are not cryptographic related :-).

 * 4. If you include any Windows specific code (or a derivative thereof) from 

 *    the apps directory (application code) you must include an acknowledgement:

 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"

 * 

 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 * 

 * The licence and distribution terms for any publically available version or

 * derivative of this code cannot be changed.  i.e. this code cannot simply be

 * copied and put under another distribution licence

 * [including the GNU Public Licence.]

 */

#ifndef HEADER_RSAREF_H

#define HEADER_RSAREF_H

#ifndef NO_RSA

#include <openssl/rsa.h>

#ifdef __cplusplus

extern "C" {

#endif

/* RSAeuro */

/*#define  RSAref_MAX_BITS		2048*/

/* RSAref */

#define  RSAref_MAX_BITS		1024

#define RSAref_MIN_BITS		508

#define RSAref_MAX_LEN		((RSAref_MAX_BITS+7)/8)

#define RSAref_MAX_PBITS	(RSAref_MAX_BITS+1)/2

#define RSAref_MAX_PLEN		((RSAref_MAX_PBITS+7)/8)

typedef struct RSArefPublicKey_st

	{

	unsigned int bits;

	unsigned char m[RSAref_MAX_LEN];

	unsigned char e[RSAref_MAX_LEN];

	} RSArefPublicKey;

typedef struct RSArefPrivateKey_st

	{

	unsigned int bits;

	unsigned char m[RSAref_MAX_LEN];

	unsigned char e[RSAref_MAX_LEN];

	unsigned char d[RSAref_MAX_LEN];

	unsigned char prime[2][RSAref_MAX_PLEN];/* p & q */

	unsigned char pexp[2][RSAref_MAX_PLEN];	/* dmp1 & dmq1 */

	unsigned char coef[RSAref_MAX_PLEN];	/* iqmp */

	} RSArefPrivateKey;

typedef struct RSARandomState_st

	{

	unsigned int needed;

	unsigned char state[16];

	unsigned int outputnum;

	unsigned char output[16];

	} RSARandomState;

#define RE_CONTENT_ENCODING 0x0400

#define RE_DATA 0x0401

#define RE_DIGEST_ALGORITHM 0x0402

#define RE_ENCODING 0x0403

#define RE_KEY 0x0404

#define RE_KEY_ENCODING 0x0405

#define RE_LEN 0x0406

#define RE_MODULUS_LEN 0x0407

#define RE_NEED_RANDOM 0x0408

#define RE_PRIVATE_KEY 0x0409

#define RE_PUBLIC_KEY 0x040a

#define RE_SIGNATURE 0x040b

#define RE_SIGNATURE_ENCODING 0x040c

#define RE_ENCRYPTION_ALGORITHM 0x040d

int RSAPrivateDecrypt(unsigned char *to, int *outlen, unsigned char *from,

	int len, RSArefPrivateKey *RSAkey);

int RSAPrivateEncrypt(unsigned char *to, int *outlen, unsigned char *from,

	int len, RSArefPrivateKey *RSAkey);

int RSAPublicDecrypt(unsigned char *to, int *outlen, unsigned char *from,

	int len, RSArefPublicKey *RSAkey);

int RSAPublicEncrypt(unsigned char *to, int *outlen, unsigned char *from,

	int len, RSArefPublicKey *RSAkey,RSARandomState *rnd);

int R_RandomInit(RSARandomState *rnd);

int R_GetRandomBytesNeeded(unsigned int *,RSARandomState *rnd);

int R_RandomUpdate(RSARandomState *rnd, unsigned char *data, unsigned int n);

int R_RandomFinal(RSARandomState *rnd);

void ERR_load_RSAREF_strings(void );

RSA_METHOD *RSA_PKCS1_RSAref(void );

#ifdef  __cplusplus

}

#endif

#endif

/* BEGIN ERROR CODES */

/* The following lines are auto generated by the script mkerr.pl. Any changes

 * made after this point may be overwritten when the script is next run.

 */