[thirdparty/openssl.git] / crypto / rsa / rsa_lib.c

/* crypto/rsa/rsa_lib.c */
/* 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.]
 */

#include <stdio.h>
#include <openssl/crypto.h>
#include "cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif

const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT;

static const RSA_METHOD *default_RSA_meth=NULL;

RSA *RSA_new(void)
	{
	RSA *r=RSA_new_method(NULL);

	return r;
	}

void RSA_set_default_method(const RSA_METHOD *meth)
	{
	default_RSA_meth = meth;
	}

const RSA_METHOD *RSA_get_default_method(void)
	{
	if (default_RSA_meth == NULL)
		{
#ifdef RSA_NULL
		default_RSA_meth=RSA_null_method();
#else
		default_RSA_meth=RSA_PKCS1_SSLeay();
#endif
		}

	return default_RSA_meth;
	}

const RSA_METHOD *RSA_get_method(const RSA *rsa)
	{
	return rsa->meth;
	}

int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
	{
	/* NB: The caller is specifically setting a method, so it's not up to us
	 * to deal with which ENGINE it comes from. */
	const RSA_METHOD *mtmp;
	mtmp = rsa->meth;
	if (mtmp->finish) mtmp->finish(rsa);
#ifndef OPENSSL_NO_ENGINE
	if (rsa->engine)
		{
		ENGINE_finish(rsa->engine);
		rsa->engine = NULL;
		}
#endif
	rsa->meth = meth;
	if (meth->init) meth->init(rsa);
	return 1;
	}

RSA *RSA_new_method(ENGINE *engine)
	{
	RSA *ret;

	ret=(RSA *)OPENSSL_malloc(sizeof(RSA));
	if (ret == NULL)
		{
		RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
		return NULL;
		}

	ret->meth = RSA_get_default_method();
#ifndef OPENSSL_NO_ENGINE
	if (engine)
		{
		if (!ENGINE_init(engine))
			{
			RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
			OPENSSL_free(ret);
			return NULL;
			}
		ret->engine = engine;
		}
	else
		ret->engine = ENGINE_get_default_RSA();
	if(ret->engine)
		{
		ret->meth = ENGINE_get_RSA(ret->engine);
		if(!ret->meth)
			{
			RSAerr(RSA_F_RSA_NEW_METHOD,
				ERR_R_ENGINE_LIB);
			ENGINE_finish(ret->engine);
			OPENSSL_free(ret);
			return NULL;
			}
		}
#endif

	ret->pad=0;
	ret->version=0;
	ret->n=NULL;
	ret->e=NULL;
	ret->d=NULL;
	ret->p=NULL;
	ret->q=NULL;
	ret->dmp1=NULL;
	ret->dmq1=NULL;
	ret->iqmp=NULL;
	ret->references=1;
	ret->_method_mod_n=NULL;
	ret->_method_mod_p=NULL;
	ret->_method_mod_q=NULL;
	ret->blinding=NULL;
	ret->mt_blinding=NULL;
	ret->bignum_data=NULL;
	ret->flags=ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data))
		{
#ifndef OPENSSL_NO_ENGINE
	if (ret->engine)
		ENGINE_finish(ret->engine);
#endif
		OPENSSL_free(ret);
		return(NULL);
		}

	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
		{
#ifndef OPENSSL_NO_ENGINE
		if (ret->engine)
			ENGINE_finish(ret->engine);
#endif
		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
		OPENSSL_free(ret);
		ret=NULL;
		}
	return(ret);
	}

void RSA_free(RSA *r)
	{
	int i;

	if (r == NULL) return;

	i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA);
#ifdef REF_PRINT
	REF_PRINT("RSA",r);
#endif
	if (i > 0) return;
#ifdef REF_CHECK
	if (i < 0)
		{
		fprintf(stderr,"RSA_free, bad reference count\n");
		abort();
		}
#endif

	if (r->meth->finish)
		r->meth->finish(r);
#ifndef OPENSSL_NO_ENGINE
	if (r->engine)
		ENGINE_finish(r->engine);
#endif

	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);

	if (r->n != NULL) BN_clear_free(r->n);
	if (r->e != NULL) BN_clear_free(r->e);
	if (r->d != NULL) BN_clear_free(r->d);
	if (r->p != NULL) BN_clear_free(r->p);
	if (r->q != NULL) BN_clear_free(r->q);
	if (r->dmp1 != NULL) BN_clear_free(r->dmp1);
	if (r->dmq1 != NULL) BN_clear_free(r->dmq1);
	if (r->iqmp != NULL) BN_clear_free(r->iqmp);
	if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
	if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding);
	if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data);
	OPENSSL_free(r);
	}

int RSA_up_ref(RSA *r)
	{
	int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
#ifdef REF_PRINT
	REF_PRINT("RSA",r);
#endif
#ifdef REF_CHECK
	if (i < 2)
		{
		fprintf(stderr, "RSA_up_ref, bad reference count\n");
		abort();
		}
#endif
	return ((i > 1) ? 1 : 0);
	}

int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
        {
	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
				new_func, dup_func, free_func);
        }

int RSA_set_ex_data(RSA *r, int idx, void *arg)
	{
	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
	}

void *RSA_get_ex_data(const RSA *r, int idx)
	{
	return(CRYPTO_get_ex_data(&r->ex_data,idx));
	}

int RSA_memory_lock(RSA *r)
	{
	int i,j,k,off;
	char *p;
	BIGNUM *bn,**t[6],*b;
	BN_ULONG *ul;

	if (r->d == NULL) return(1);
	t[0]= &r->d;
	t[1]= &r->p;
	t[2]= &r->q;
	t[3]= &r->dmp1;
	t[4]= &r->dmq1;
	t[5]= &r->iqmp;
	k=sizeof(BIGNUM)*6;
	off=k/sizeof(BN_ULONG)+1;
	j=1;
	for (i=0; i<6; i++)
		j+= (*t[i])->top;
	if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL)
		{
		RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
		return(0);
		}
	bn=(BIGNUM *)p;
	ul=(BN_ULONG *)&(p[off]);
	for (i=0; i<6; i++)
		{
		b= *(t[i]);
		*(t[i])= &(bn[i]);
		memcpy((char *)&(bn[i]),(char *)b,sizeof(BIGNUM));
		bn[i].flags=BN_FLG_STATIC_DATA;
		bn[i].d=ul;
		memcpy((char *)ul,b->d,sizeof(BN_ULONG)*b->top);
		ul+=b->top;
		BN_clear_free(b);
		}
	
	/* I should fix this so it can still be done */
	r->flags&= ~(RSA_FLAG_CACHE_PRIVATE|RSA_FLAG_CACHE_PUBLIC);

	r->bignum_data=p;
	return(1);
	}

int RSA_security_bits(const RSA *rsa)
	{
	return BN_security_bits(BN_num_bits(rsa->n), -1);
	}
Commit	Line	Data
d02b48c6	1	/* crypto/rsa/rsa_lib.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	5	* This package is an SSL implementation written
	6	* by Eric Young (eay@cryptsoft.com).
	7	* The implementation was written so as to conform with Netscapes SSL.
	8	*
	9	* This library is free for commercial and non-commercial use as long as
	10	* the following conditions are aheared to. The following conditions
	11	* apply to all code found in this distribution, be it the RC4, RSA,
	12	* lhash, DES, etc., code; not just the SSL code. The SSL documentation
	13	* included with this distribution is covered by the same copyright terms
	14	* except that the holder is Tim Hudson (tjh@cryptsoft.com).
	15	*
	16	* Copyright remains Eric Young's, and as such any Copyright notices in
	17	* the code are not to be removed.
	18	* If this package is used in a product, Eric Young should be given attribution
	19	* as the author of the parts of the library used.
	20	* This can be in the form of a textual message at program startup or
	21	* in documentation (online or textual) provided with the package.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	26	* 1. Redistributions of source code must retain the copyright
	27	* notice, this list of conditions and the following disclaimer.
	28	* 2. Redistributions in binary form must reproduce the above copyright
	29	* notice, this list of conditions and the following disclaimer in the
	30	* documentation and/or other materials provided with the distribution.
	31	* 3. All advertising materials mentioning features or use of this software
	32	* must display the following acknowledgement:
	33	* "This product includes cryptographic software written by
	34	* Eric Young (eay@cryptsoft.com)"
	35	* The word 'cryptographic' can be left out if the rouines from the library
	36	* being used are not cryptographic related :-).
	37	* 4. If you include any Windows specific code (or a derivative thereof) from
	38	* the apps directory (application code) you must include an acknowledgement:
	39	* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
	40	*
	41	* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
	42	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	43	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	44	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	45	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	46	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	47	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	48	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	49	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	50	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	51	* SUCH DAMAGE.
	52	*
	53	* The licence and distribution terms for any publically available version or
	54	* derivative of this code cannot be changed. i.e. this code cannot simply be
	55	* copied and put under another distribution licence
	56	* [including the GNU Public Licence.]
	57	*/
	58
	59	#include <stdio.h>
ec577822	60	#include <openssl/crypto.h>
d02b48c6	61	#include "cryptlib.h"
ec577822 BM	62	#include <openssl/lhash.h>
	63	#include <openssl/bn.h>
	64	#include <openssl/rsa.h>
721688c2	65	#include <openssl/rand.h>
0b13e9f0	66	#ifndef OPENSSL_NO_ENGINE
5270e702	67	#include <openssl/engine.h>
0b13e9f0	68	#endif
d02b48c6	69
560b79cb	70	const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT;
d02b48c6	71
29c1f061	72	static const RSA_METHOD *default_RSA_meth=NULL;
d02b48c6	73
6b691a5c	74	RSA *RSA_new(void)
d02b48c6	75	{
c554155b BM	76	RSA *r=RSA_new_method(NULL);
	77
	78	return r;
d02b48c6 RE	79	}
d02b48c6 RE	80
cb78486d	81	void RSA_set_default_method(const RSA_METHOD *meth)
d02b48c6	82	{
cb78486d	83	default_RSA_meth = meth;
d02b48c6 RE	84	}
d02b48c6 RE	85
cb78486d GT	86	const RSA_METHOD *RSA_get_default_method(void)
cb78486d GT	87	{
deb4d50e GT	88	if (default_RSA_meth == NULL)
	89	{
	90	#ifdef RSA_NULL
	91	default_RSA_meth=RSA_null_method();
deb4d50e GT	92	#else
deb4d50e GT	93	default_RSA_meth=RSA_PKCS1_SSLeay();
deb4d50e GT	94	#endif
	95	}
	96
ce8b2574	97	return default_RSA_meth;
cb78486d	98	}
ce8b2574	99
29c1f061	100	const RSA_METHOD RSA_get_method(const RSA rsa)
cb78486d GT	101	{
	102	return rsa->meth;
	103	}
	104
	105	int RSA_set_method(RSA rsa, const RSA_METHOD meth)
	106	{
	107	/* NB: The caller is specifically setting a method, so it's not up to us
	108	* to deal with which ENGINE it comes from. */
	109	const RSA_METHOD *mtmp;
ce8b2574 DSH	110	mtmp = rsa->meth;
ce8b2574 DSH	111	if (mtmp->finish) mtmp->finish(rsa);
0b13e9f0	112	#ifndef OPENSSL_NO_ENGINE
cb78486d GT	113	if (rsa->engine)
	114	{
	115	ENGINE_finish(rsa->engine);
	116	rsa->engine = NULL;
	117	}
0b13e9f0	118	#endif
ce8b2574 DSH	119	rsa->meth = meth;
ce8b2574 DSH	120	if (meth->init) meth->init(rsa);
5270e702	121	return 1;
cb78486d	122	}
ce8b2574	123
5270e702	124	RSA RSA_new_method(ENGINE engine)
d02b48c6 RE	125	{
	126	RSA *ret;
	127
26a3a48d	128	ret=(RSA *)OPENSSL_malloc(sizeof(RSA));
d02b48c6 RE	129	if (ret == NULL)
	130	{
	131	RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
d7e02997	132	return NULL;
d02b48c6 RE	133	}
d02b48c6 RE	134
cb78486d	135	ret->meth = RSA_get_default_method();
0b13e9f0	136	#ifndef OPENSSL_NO_ENGINE
0c372b94 DSH	137	if (engine)
	138	{
	139	if (!ENGINE_init(engine))
	140	{
	141	RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
	142	OPENSSL_free(ret);
	143	return NULL;
	144	}
	145	ret->engine = engine;
	146	}
	147	else
cb78486d GT	148	ret->engine = ENGINE_get_default_RSA();
cb78486d GT	149	if(ret->engine)
5270e702	150	{
cb78486d GT	151	ret->meth = ENGINE_get_RSA(ret->engine);
	152	if(!ret->meth)
	153	{
	154	RSAerr(RSA_F_RSA_NEW_METHOD,
	155	ERR_R_ENGINE_LIB);
	156	ENGINE_finish(ret->engine);
	157	OPENSSL_free(ret);
	158	return NULL;
	159	}
0c9de428	160	}
0b13e9f0	161	#endif
0c9de428	162
d02b48c6 RE	163	ret->pad=0;
	164	ret->version=0;
	165	ret->n=NULL;
	166	ret->e=NULL;
	167	ret->d=NULL;
	168	ret->p=NULL;
	169	ret->q=NULL;
	170	ret->dmp1=NULL;
	171	ret->dmq1=NULL;
	172	ret->iqmp=NULL;
	173	ret->references=1;
03f8b042 BL	174	ret->_method_mod_n=NULL;
	175	ret->_method_mod_p=NULL;
	176	ret->_method_mod_q=NULL;
58964a49	177	ret->blinding=NULL;
800e400d	178	ret->mt_blinding=NULL;
dfeab068	179	ret->bignum_data=NULL;
dc03504d	180	ret->flags=ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
fdb2c6e4 DSH	181	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data))
	182	{
	183	#ifndef OPENSSL_NO_ENGINE
	184	if (ret->engine)
	185	ENGINE_finish(ret->engine);
	186	#endif
	187	OPENSSL_free(ret);
	188	return(NULL);
	189	}
	190
cb78486d	191	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
d02b48c6	192	{
0b13e9f0	193	#ifndef OPENSSL_NO_ENGINE
0c372b94 DSH	194	if (ret->engine)
0c372b94 DSH	195	ENGINE_finish(ret->engine);
0b13e9f0	196	#endif
79aa04ef	197	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
26a3a48d	198	OPENSSL_free(ret);
d02b48c6 RE	199	ret=NULL;
	200	}
	201	return(ret);
	202	}
	203
6b691a5c	204	void RSA_free(RSA *r)
d02b48c6 RE	205	{
	206	int i;
	207
	208	if (r == NULL) return;
	209
	210	i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA);
58964a49 RE	211	#ifdef REF_PRINT
	212	REF_PRINT("RSA",r);
	213	#endif
d02b48c6 RE	214	if (i > 0) return;
	215	#ifdef REF_CHECK
	216	if (i < 0)
	217	{
	218	fprintf(stderr,"RSA_free, bad reference count\n");
	219	abort();
	220	}
	221	#endif
	222
cb78486d GT	223	if (r->meth->finish)
cb78486d GT	224	r->meth->finish(r);
0b13e9f0	225	#ifndef OPENSSL_NO_ENGINE
cb78486d GT	226	if (r->engine)
cb78486d GT	227	ENGINE_finish(r->engine);
0b13e9f0	228	#endif
d02b48c6	229
79aa04ef	230	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
7abe8305	231
d02b48c6 RE	232	if (r->n != NULL) BN_clear_free(r->n);
	233	if (r->e != NULL) BN_clear_free(r->e);
	234	if (r->d != NULL) BN_clear_free(r->d);
	235	if (r->p != NULL) BN_clear_free(r->p);
	236	if (r->q != NULL) BN_clear_free(r->q);
	237	if (r->dmp1 != NULL) BN_clear_free(r->dmp1);
	238	if (r->dmq1 != NULL) BN_clear_free(r->dmq1);
	239	if (r->iqmp != NULL) BN_clear_free(r->iqmp);
58964a49	240	if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
800e400d	241	if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding);
26a3a48d RL	242	if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data);
26a3a48d RL	243	OPENSSL_free(r);
d02b48c6 RE	244	}
d02b48c6 RE	245
6ac4e8bd	246	int RSA_up_ref(RSA *r)
5cbc2e8b GT	247	{
	248	int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
	249	#ifdef REF_PRINT
	250	REF_PRINT("RSA",r);
	251	#endif
	252	#ifdef REF_CHECK
	253	if (i < 2)
	254	{
6ac4e8bd	255	fprintf(stderr, "RSA_up_ref, bad reference count\n");
5cbc2e8b GT	256	abort();
	257	}
	258	#endif
	259	return ((i > 1) ? 1 : 0);
	260	}
	261
dd9d233e DSH	262	int RSA_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
dd9d233e DSH	263	CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func)
58964a49	264	{
79aa04ef GT	265	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
79aa04ef GT	266	new_func, dup_func, free_func);
58964a49 RE	267	}
58964a49 RE	268
dd9d233e	269	int RSA_set_ex_data(RSA r, int idx, void arg)
58964a49 RE	270	{
	271	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
	272	}
	273
29c1f061	274	void RSA_get_ex_data(const RSA r, int idx)
58964a49 RE	275	{
	276	return(CRYPTO_get_ex_data(&r->ex_data,idx));
	277	}
	278
6b691a5c	279	int RSA_memory_lock(RSA *r)
dfeab068 RE	280	{
	281	int i,j,k,off;
	282	char *p;
	283	BIGNUM bn,t[6],b;
	284	BN_ULONG *ul;
	285
	286	if (r->d == NULL) return(1);
	287	t[0]= &r->d;
	288	t[1]= &r->p;
	289	t[2]= &r->q;
	290	t[3]= &r->dmp1;
	291	t[4]= &r->dmq1;
	292	t[5]= &r->iqmp;
	293	k=sizeof(BIGNUM)*6;
	294	off=k/sizeof(BN_ULONG)+1;
	295	j=1;
	296	for (i=0; i<6; i++)
	297	j+= (*t[i])->top;
26a3a48d	298	if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL)
dfeab068	299	{
8afca8d9	300	RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
dfeab068 RE	301	return(0);
	302	}
	303	bn=(BIGNUM *)p;
	304	ul=(BN_ULONG *)&(p[off]);
	305	for (i=0; i<6; i++)
	306	{
	307	b= *(t[i]);
	308	*(t[i])= &(bn[i]);
	309	memcpy((char )&(bn[i]),(char )b,sizeof(BIGNUM));
	310	bn[i].flags=BN_FLG_STATIC_DATA;
	311	bn[i].d=ul;
	312	memcpy((char )ul,b->d,sizeof(BN_ULONG)b->top);
	313	ul+=b->top;
	314	BN_clear_free(b);
	315	}
	316
	317	/* I should fix this so it can still be done */
	318	r->flags&= ~(RSA_FLAG_CACHE_PRIVATE\|RSA_FLAG_CACHE_PUBLIC);
	319
	320	r->bignum_data=p;
	321	return(1);
	322	}
2514fa79 DSH	323
	324	int RSA_security_bits(const RSA *rsa)
	325	{
	326	return BN_security_bits(BN_num_bits(rsa->n), -1);
	327	}