Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/dh/dh_ameth.c

Index: openssl/crypto/dh/dh_ameth.c
diff --git a/openssl/crypto/dh/dh_ameth.c b/openssl/crypto/dh/dh_ameth.c
deleted file mode 100644
index 02ec2d47b4bd39998fa2278f727c085403aa9e8e..0000000000000000000000000000000000000000
--- a/openssl/crypto/dh/dh_ameth.c
+++ /dev/null
@@ -1,501 +0,0 @@
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
- *
- * 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 above 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 acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/x509.h>
-#include <openssl/asn1.h>
-#include <openssl/dh.h>
-#include <openssl/bn.h>
-#include "asn1_locl.h"
-
-static void int_dh_free(EVP_PKEY *pkey)
-	{
-	DH_free(pkey->pkey.dh);
-	}
-
-static int dh_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
-	{
-	const unsigned char *p, *pm;
-	int pklen, pmlen;
-	int ptype;
-	void *pval;
-	ASN1_STRING *pstr;
-	X509_ALGOR *palg;
-	ASN1_INTEGER *public_key = NULL;
-
-	DH *dh = NULL;
-
-	if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
-		return 0;
-	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
-	if (ptype != V_ASN1_SEQUENCE)
-		{
-		DHerr(DH_F_DH_PUB_DECODE, DH_R_PARAMETER_ENCODING_ERROR);
-		goto err;
-		}
-
-	pstr = pval;	
-	pm = pstr->data;
-	pmlen = pstr->length;
-
-	if (!(dh = d2i_DHparams(NULL, &pm, pmlen)))
-		{
-		DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
-		goto err;
-		}
-
-	if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen)))
-		{
-		DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
-		goto err;
-		}
-
-	/* We have parameters now set public key */
-	if (!(dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)))
-		{
-		DHerr(DH_F_DH_PUB_DECODE, DH_R_BN_DECODE_ERROR);
-		goto err;
-		}
-
-	ASN1_INTEGER_free(public_key);
-	EVP_PKEY_assign_DH(pkey, dh);
-	return 1;
-
-	err:
-	if (public_key)
-		ASN1_INTEGER_free(public_key);
-	if (dh)
-		DH_free(dh);
-	return 0;
-
-	}
-
-static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
-	{
-	DH *dh;
-	void *pval = NULL;
-	int ptype;
-	unsigned char *penc = NULL;
-	int penclen;
-	ASN1_STRING *str;
-	ASN1_INTEGER *pub_key = NULL;
-
-	dh=pkey->pkey.dh;
-
-	str = ASN1_STRING_new();
-	str->length = i2d_DHparams(dh, &str->data);
-	if (str->length <= 0)
-		{
-		DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	pval = str;
-	ptype = V_ASN1_SEQUENCE;
-
-	pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
-	if (!pub_key)
-		goto err;
-
-	penclen = i2d_ASN1_INTEGER(pub_key, &penc);
-
-	ASN1_INTEGER_free(pub_key);
-
-	if (penclen <= 0)
-		{
-		DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DH),
-				ptype, pval, penc, penclen))
-		return 1;
-
-	err:
-	if (penc)
-		OPENSSL_free(penc);
-	if (pval)
-		ASN1_STRING_free(pval);
-
-	return 0;
-	}
-
-
-/* PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in
- * that the AlgorithmIdentifier contains the paramaters, the private key
- * is explcitly included and the pubkey must be recalculated.
- */
-	
-static int dh_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
-	{
-	const unsigned char *p, *pm;
-	int pklen, pmlen;
-	int ptype;
-	void *pval;
-	ASN1_STRING *pstr;
-	X509_ALGOR *palg;
-	ASN1_INTEGER *privkey = NULL;
-
-	DH *dh = NULL;
-
-	if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
-		return 0;
-
-	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
-	if (ptype != V_ASN1_SEQUENCE)
-			goto decerr;
-
-	if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen)))
-		goto decerr;
-
-
-	pstr = pval;	
-	pm = pstr->data;
-	pmlen = pstr->length;
-	if (!(dh = d2i_DHparams(NULL, &pm, pmlen)))
-		goto decerr;
-	/* We have parameters now set private key */
-	if (!(dh->priv_key = ASN1_INTEGER_to_BN(privkey, NULL)))
-		{
-		DHerr(DH_F_DH_PRIV_DECODE,DH_R_BN_ERROR);
-		goto dherr;
-		}
-	/* Calculate public key */
-	if (!DH_generate_key(dh))
-		goto dherr;
-
-	EVP_PKEY_assign_DH(pkey, dh);
-
-	ASN1_INTEGER_free(privkey);
-
-	return 1;
-
-	decerr:
-	DHerr(DH_F_DH_PRIV_DECODE, EVP_R_DECODE_ERROR);
-	dherr:
-	DH_free(dh);
-	return 0;
-	}
-
-static int dh_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
-{
-	ASN1_STRING *params = NULL;
-	ASN1_INTEGER *prkey = NULL;
-	unsigned char *dp = NULL;
-	int dplen;
-
-	params = ASN1_STRING_new();
-
-	if (!params)
-		{
-		DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	params->length = i2d_DHparams(pkey->pkey.dh, &params->data);
-	if (params->length <= 0)
-		{
-		DHerr(DH_F_DH_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-	params->type = V_ASN1_SEQUENCE;
-
-	/* Get private key into integer */
-	prkey = BN_to_ASN1_INTEGER(pkey->pkey.dh->priv_key, NULL);
-
-	if (!prkey)
-		{
-		DHerr(DH_F_DH_PRIV_ENCODE,DH_R_BN_ERROR);
-		goto err;
-		}
-
-	dplen = i2d_ASN1_INTEGER(prkey, &dp);
-
-	ASN1_INTEGER_free(prkey);
-
-	if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dhKeyAgreement), 0,
-				V_ASN1_SEQUENCE, params, dp, dplen))
-		goto err;
-
-	return 1;
-
-err:
-	if (dp != NULL)
-		OPENSSL_free(dp);
-	if (params != NULL)
-		ASN1_STRING_free(params);
-	if (prkey != NULL)
-		ASN1_INTEGER_free(prkey);
-	return 0;
-}
-
-
-static void update_buflen(const BIGNUM *b, size_t *pbuflen)
-	{
-	size_t i;
-	if (!b)
-		return;
-	if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
-			*pbuflen = i;
-	}
-
-static int dh_param_decode(EVP_PKEY *pkey,
-					const unsigned char **pder, int derlen)
-	{
-	DH *dh;
-	if (!(dh = d2i_DHparams(NULL, pder, derlen)))
-		{
-		DHerr(DH_F_DH_PARAM_DECODE, ERR_R_DH_LIB);
-		return 0;
-		}
-	EVP_PKEY_assign_DH(pkey, dh);
-	return 1;
-	}
-
-static int dh_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
-	{
-	return i2d_DHparams(pkey->pkey.dh, pder);
-	}
-
-static int do_dh_print(BIO *bp, const DH *x, int indent,
-						ASN1_PCTX *ctx, int ptype)
-	{
-	unsigned char *m=NULL;
-	int reason=ERR_R_BUF_LIB,ret=0;
-	size_t buf_len=0;
-
-	const char *ktype = NULL;
-
-	BIGNUM *priv_key, *pub_key;
-
-	if (ptype == 2)
-		priv_key = x->priv_key;
-	else
-		priv_key = NULL;
-
-	if (ptype > 0)
-		pub_key = x->pub_key;
-	else
-		pub_key = NULL;
-
-	update_buflen(x->p, &buf_len);
-
-	if (buf_len == 0)
-		{
-		reason = ERR_R_PASSED_NULL_PARAMETER;
-		goto err;
-		}
-
-	update_buflen(x->g, &buf_len);
-	update_buflen(pub_key, &buf_len);
-	update_buflen(priv_key, &buf_len);
-
-	if (ptype == 2)
-		ktype = "PKCS#3 DH Private-Key";
-	else if (ptype == 1)
-		ktype = "PKCS#3 DH Public-Key";
-	else
-		ktype = "PKCS#3 DH Parameters";
-
-	m= OPENSSL_malloc(buf_len+10);
-	if (m == NULL)
-		{
-		reason=ERR_R_MALLOC_FAILURE;
-		goto err;
-		}
-
-	BIO_indent(bp, indent, 128);
-	if (BIO_printf(bp,"%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0)
-		goto err;
-	indent += 4;
-
-	if (!ASN1_bn_print(bp,"private-key:",priv_key,m,indent)) goto err;
-	if (!ASN1_bn_print(bp,"public-key:",pub_key,m,indent)) goto err;
-
-	if (!ASN1_bn_print(bp,"prime:",x->p,m,indent)) goto err;
-	if (!ASN1_bn_print(bp,"generator:",x->g,m,indent)) goto err;
-	if (x->length != 0)
-		{
-		BIO_indent(bp, indent, 128);
-		if (BIO_printf(bp,"recommended-private-length: %d bits\n",
-			(int)x->length) <= 0) goto err;
-		}
-
-
-	ret=1;
-	if (0)
-		{
-err:
-		DHerr(DH_F_DO_DH_PRINT,reason);
-		}
-	if (m != NULL) OPENSSL_free(m);
-	return(ret);
-	}
-
-static int int_dh_size(const EVP_PKEY *pkey)
-	{
-	return(DH_size(pkey->pkey.dh));
-	}
-
-static int dh_bits(const EVP_PKEY *pkey)
-	{
-	return BN_num_bits(pkey->pkey.dh->p);
-	}
-
-static int dh_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
-	{
-	if (	BN_cmp(a->pkey.dh->p,b->pkey.dh->p) ||
-		BN_cmp(a->pkey.dh->g,b->pkey.dh->g))
-		return 0;
-	else
-		return 1;
-	}
-
-static int dh_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
-	{
-	BIGNUM *a;
-
-	if ((a=BN_dup(from->pkey.dh->p)) == NULL)
-		return 0;
-	if (to->pkey.dh->p != NULL)
-		BN_free(to->pkey.dh->p);
-	to->pkey.dh->p=a;
-
-	if ((a=BN_dup(from->pkey.dh->g)) == NULL)
-		return 0;
-	if (to->pkey.dh->g != NULL)
-		BN_free(to->pkey.dh->g);
-	to->pkey.dh->g=a;
-
-	return 1;
-	}
-
-static int dh_missing_parameters(const EVP_PKEY *a)
-	{
-	if (!a->pkey.dh->p || !a->pkey.dh->g)
-		return 1;
-	return 0;
-	}
-
-static int dh_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
-	{
-	if (dh_cmp_parameters(a, b) == 0)
-		return 0;
-	if (BN_cmp(b->pkey.dh->pub_key,a->pkey.dh->pub_key) != 0)
-		return 0;
-	else
-		return 1;
-	}
-
-static int dh_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 0);
-	}
-
-static int dh_public_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 1);
-	}
-
-static int dh_private_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 2);
-	}
-
-int DHparams_print(BIO *bp, const DH *x)
-	{
-	return do_dh_print(bp, x, 4, NULL, 0);
-	}
-
-const EVP_PKEY_ASN1_METHOD dh_asn1_meth = 
-	{
-	EVP_PKEY_DH,
-	EVP_PKEY_DH,
-	0,
-
-	"DH",
-	"OpenSSL PKCS#3 DH method",
-
-	dh_pub_decode,
-	dh_pub_encode,
-	dh_pub_cmp,
-	dh_public_print,
-
-	dh_priv_decode,
-	dh_priv_encode,
-	dh_private_print,
-
-	int_dh_size,
-	dh_bits,
-
-	dh_param_decode,
-	dh_param_encode,
-	dh_missing_parameters,
-	dh_copy_parameters,
-	dh_cmp_parameters,
-	dh_param_print,
-	0,
-
-	int_dh_free,
-	0
-	};
-