Initial import

1 files changed, 311 insertions, 0 deletions

diff --git a/openssl/crypto/dsa/dsa_lib.c b/openssl/crypto/dsa/dsa_lib.c
new file mode 100644
index 00000000..e9b75902
--- /dev/null
+++ b/openssl/crypto/dsa/dsa_lib.c
@@ -0,0 +1,311 @@
+/* crypto/dsa/dsa_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.]
+ */
+
+/* Original version from Steven Schoch <schoch@sheba.arc.nasa.gov> */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/dsa.h>
+#include <openssl/asn1.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+
+const char DSA_version[]="DSA" OPENSSL_VERSION_PTEXT;
+
+static const DSA_METHOD *default_DSA_method = NULL;
+
+void DSA_set_default_method(const DSA_METHOD *meth)
+	{
+	default_DSA_method = meth;
+	}
+
+const DSA_METHOD *DSA_get_default_method(void)
+	{
+	if(!default_DSA_method)
+		default_DSA_method = DSA_OpenSSL();
+	return default_DSA_method;
+	}
+
+DSA *DSA_new(void)
+	{
+	return DSA_new_method(NULL);
+	}
+
+int DSA_set_method(DSA *dsa, const DSA_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 DSA_METHOD *mtmp;
+        mtmp = dsa->meth;
+        if (mtmp->finish) mtmp->finish(dsa);
+#ifndef OPENSSL_NO_ENGINE
+	if (dsa->engine)
+		{
+		ENGINE_finish(dsa->engine);
+		dsa->engine = NULL;
+		}
+#endif
+        dsa->meth = meth;
+        if (meth->init) meth->init(dsa);
+        return 1;
+	}
+
+DSA *DSA_new_method(ENGINE *engine)
+	{
+	DSA *ret;
+
+	ret=(DSA *)OPENSSL_malloc(sizeof(DSA));
+	if (ret == NULL)
+		{
+		DSAerr(DSA_F_DSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+		return(NULL);
+		}
+	ret->meth = DSA_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
+	if (engine)
+		{
+		if (!ENGINE_init(engine))
+			{
+			DSAerr(DSA_F_DSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		ret->engine = engine;
+		}
+	else
+		ret->engine = ENGINE_get_default_DSA();
+	if(ret->engine)
+		{
+		ret->meth = ENGINE_get_DSA(ret->engine);
+		if(!ret->meth)
+			{
+			DSAerr(DSA_F_DSA_NEW_METHOD,
+				ERR_R_ENGINE_LIB);
+			ENGINE_finish(ret->engine);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		}
+#endif
+
+	ret->pad=0;
+	ret->version=0;
+	ret->write_params=1;
+	ret->p=NULL;
+	ret->q=NULL;
+	ret->g=NULL;
+
+	ret->pub_key=NULL;
+	ret->priv_key=NULL;
+
+	ret->kinv=NULL;
+	ret->r=NULL;
+	ret->method_mont_p=NULL;
+
+	ret->references=1;
+	ret->flags=ret->meth->flags;
+	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data);
+	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_DSA, ret, &ret->ex_data);
+		OPENSSL_free(ret);
+		ret=NULL;
+		}
+	
+	return(ret);
+	}
+
+void DSA_free(DSA *r)
+	{
+	int i;
+
+	if (r == NULL) return;
+
+	i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_DSA);
+#ifdef REF_PRINT
+	REF_PRINT("DSA",r);
+#endif
+	if (i > 0) return;
+#ifdef REF_CHECK
+	if (i < 0)
+		{
+		fprintf(stderr,"DSA_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_DSA, r, &r->ex_data);
+
+	if (r->p != NULL) BN_clear_free(r->p);
+	if (r->q != NULL) BN_clear_free(r->q);
+	if (r->g != NULL) BN_clear_free(r->g);
+	if (r->pub_key != NULL) BN_clear_free(r->pub_key);
+	if (r->priv_key != NULL) BN_clear_free(r->priv_key);
+	if (r->kinv != NULL) BN_clear_free(r->kinv);
+	if (r->r != NULL) BN_clear_free(r->r);
+	OPENSSL_free(r);
+	}
+
+int DSA_up_ref(DSA *r)
+	{
+	int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_DSA);
+#ifdef REF_PRINT
+	REF_PRINT("DSA",r);
+#endif
+#ifdef REF_CHECK
+	if (i < 2)
+		{
+		fprintf(stderr, "DSA_up_ref, bad reference count\n");
+		abort();
+		}
+#endif
+	return ((i > 1) ? 1 : 0);
+	}
+
+int DSA_size(const DSA *r)
+	{
+	int ret,i;
+	ASN1_INTEGER bs;
+	unsigned char buf[4];	/* 4 bytes looks really small.
+				   However, i2d_ASN1_INTEGER() will not look
+				   beyond the first byte, as long as the second
+				   parameter is NULL. */
+
+	i=BN_num_bits(r->q);
+	bs.length=(i+7)/8;
+	bs.data=buf;
+	bs.type=V_ASN1_INTEGER;
+	/* If the top bit is set the asn1 encoding is 1 larger. */
+	buf[0]=0xff;	
+
+	i=i2d_ASN1_INTEGER(&bs,NULL);
+	i+=i; /* r and s */
+	ret=ASN1_object_size(1,i,V_ASN1_SEQUENCE);
+	return(ret);
+	}
+
+int DSA_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_DSA, argl, argp,
+				new_func, dup_func, free_func);
+        }
+
+int DSA_set_ex_data(DSA *d, int idx, void *arg)
+	{
+	return(CRYPTO_set_ex_data(&d->ex_data,idx,arg));
+	}
+
+void *DSA_get_ex_data(DSA *d, int idx)
+	{
+	return(CRYPTO_get_ex_data(&d->ex_data,idx));
+	}
+
+#ifndef OPENSSL_NO_DH
+DH *DSA_dup_DH(const DSA *r)
+	{
+	/* DSA has p, q, g, optional pub_key, optional priv_key.
+	 * DH has p, optional length, g, optional pub_key, optional priv_key.
+	 */ 
+
+	DH *ret = NULL;
+
+	if (r == NULL)
+		goto err;
+	ret = DH_new();
+	if (ret == NULL)
+		goto err;
+	if (r->p != NULL) 
+		if ((ret->p = BN_dup(r->p)) == NULL)
+			goto err;
+	if (r->q != NULL)
+		ret->length = BN_num_bits(r->q);
+	if (r->g != NULL)
+		if ((ret->g = BN_dup(r->g)) == NULL)
+			goto err;
+	if (r->pub_key != NULL)
+		if ((ret->pub_key = BN_dup(r->pub_key)) == NULL)
+			goto err;
+	if (r->priv_key != NULL)
+		if ((ret->priv_key = BN_dup(r->priv_key)) == NULL)
+			goto err;
+
+	return ret;
+
+ err:
+	if (ret != NULL)
+		DH_free(ret);
+	return NULL;
+	}
+#endif