--- /dev/null
+/* 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
+
+#ifdef OPENSSL_FIPS
+#include <openssl/fips.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 OPENSSL_FIPS
+ if (FIPS_mode())
+ return FIPS_rsa_pkcs1_ssleay();
+ else
+ return RSA_PKCS1_SSLeay();
+#else
+#ifdef RSA_NULL
+ default_RSA_meth=RSA_null_method();
+#else
+ default_RSA_meth=RSA_PKCS1_SSLeay();
+#endif
+#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);
+ }
projects / cassiopeia.git / blobdiff