rsa_lib.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/* 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
* 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 "cryptlib.h"
#ifndef OPENSSL_NO_ENGINE
#endif
{
return r;
}
{
}
const RSA_METHOD *RSA_get_default_method(void)
{
if (default_RSA_meth == NULL)
{
#ifdef RSA_NULL
#else
#if 0 /* was: #ifdef RSAref */
#else
#endif
#endif
}
return default_RSA_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;
#ifndef OPENSSL_NO_ENGINE
{
}
#endif
return 1;
}
{
{
return NULL;
}
#ifndef OPENSSL_NO_ENGINE
if (engine)
{
if (!ENGINE_init(engine))
{
return NULL;
}
}
else
{
{
return NULL;
}
}
#endif
{
#ifndef OPENSSL_NO_ENGINE
#endif
}
return(ret);
}
{
int i;
if (r == NULL) return;
#ifdef REF_PRINT
REF_PRINT("RSA",r);
#endif
if (i > 0) return;
#ifdef REF_CHECK
if (i < 0)
{
abort();
}
#endif
#ifndef OPENSSL_NO_ENGINE
if (r->engine)
ENGINE_finish(r->engine);
#endif
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);
OPENSSL_free(r);
}
int RSA_up_ref(RSA *r)
{
#ifdef REF_PRINT
REF_PRINT("RSA",r);
#endif
#ifdef REF_CHECK
if (i < 2)
{
abort();
}
#endif
return ((i > 1) ? 1 : 0);
}
{
}
{
}
{
}
{
return(BN_num_bytes(r->n));
}
{
}
{
}
{
}
{
}
{
}
{
{
}
}
{
int ret=0;
{
}
else
/* XXXXX: Shouldn't this be RSA_blinding_off(rsa)? */
{
}
/* NB: similar code appears in setup_blinding (rsa_eay.c);
* this should be placed in a new function of its own, but for reasons
* of binary compatibility can't */
A = BN_CTX_get(ctx);
{
/* if PRNG is not properly seeded, resort to secret exponent as unpredictable seed */
}
else
{
}
goto err;
/* to make things thread-safe without excessive locking,
* rsa->blinding will be used just by the current thread: */
ret=1;
err:
return(ret);
}
int RSA_memory_lock(RSA *r)
{
int i,j,k,off;
char *p;
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;
j=1;
for (i=0; i<6; i++)
j+= (*t[i])->top;
{
return(0);
}
for (i=0; i<6; i++)
{
b= *(t[i]);
*(t[i])= &(bn[i]);
BN_clear_free(b);
}
/* I should fix this so it can still be done */
r->bignum_data=p;
return(1);
}