Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/ec/ec_ameth.c

Index: openssl/crypto/ec/ec_ameth.c
diff --git a/openssl/crypto/ec/ec_ameth.c b/openssl/crypto/ec/ec_ameth.c
deleted file mode 100644
index 83909c185359a73046952b2ad9ac38991211b2e7..0000000000000000000000000000000000000000
--- a/openssl/crypto/ec/ec_ameth.c
+++ /dev/null
@@ -1,660 +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/ec.h>
-#include <openssl/bn.h>
-#ifndef OPENSSL_NO_CMS
-#include <openssl/cms.h>
-#endif
-#include "asn1_locl.h"
-
-static int eckey_param2type(int *pptype, void **ppval, EC_KEY *ec_key)
-	{
-	const EC_GROUP  *group;
-	int nid;
-	if (ec_key == NULL || (group = EC_KEY_get0_group(ec_key)) == NULL) 
-	{
-		ECerr(EC_F_ECKEY_PARAM2TYPE, EC_R_MISSING_PARAMETERS);
-		return 0;
-	}
-	if (EC_GROUP_get_asn1_flag(group)
-                     && (nid = EC_GROUP_get_curve_name(group)))
-		/* we have a 'named curve' => just set the OID */
-		{
-		*ppval = OBJ_nid2obj(nid);
-		*pptype = V_ASN1_OBJECT;
-		}
-	else	/* explicit parameters */
-		{
-		ASN1_STRING *pstr = NULL;
-		pstr = ASN1_STRING_new();
-		if (!pstr)
-			return 0;
-		pstr->length = i2d_ECParameters(ec_key, &pstr->data);
-		if (pstr->length < 0)
-			{
-			ASN1_STRING_free(pstr);
-			ECerr(EC_F_ECKEY_PARAM2TYPE, ERR_R_EC_LIB);
-			return 0;
-			}
-		*ppval = pstr;
-		*pptype = V_ASN1_SEQUENCE;
-		}
-	return 1;
-	}
-
-static int eckey_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
-	{
-	EC_KEY *ec_key = pkey->pkey.ec;
-	void *pval = NULL;
-	int ptype;
-	unsigned char *penc = NULL, *p;
-	int penclen;
-
-	if (!eckey_param2type(&ptype, &pval, ec_key))
-		{
-		ECerr(EC_F_ECKEY_PUB_ENCODE, ERR_R_EC_LIB);
-		return 0;
-		}
-	penclen = i2o_ECPublicKey(ec_key, NULL);
-	if (penclen <= 0)
-		goto err;
-	penc = OPENSSL_malloc(penclen);
-	if (!penc)
-		goto err;
-	p = penc;
-	penclen = i2o_ECPublicKey(ec_key, &p);
-	if (penclen <= 0)
-		goto err;
-	if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_EC),
-				ptype, pval, penc, penclen))
-		return 1;
-	err:
-	if (ptype == V_ASN1_OBJECT)
-		ASN1_OBJECT_free(pval);
-	else
-		ASN1_STRING_free(pval);
-	if (penc)
-		OPENSSL_free(penc);
-	return 0;
-	}
-
-static EC_KEY *eckey_type2param(int ptype, void *pval)
-	{
-	EC_KEY *eckey = NULL;
-	if (ptype == V_ASN1_SEQUENCE)
-		{
-		ASN1_STRING *pstr = pval;
-		const unsigned char *pm = NULL;
-		int pmlen;
-		pm = pstr->data;
-		pmlen = pstr->length;
-		if (!(eckey = d2i_ECParameters(NULL, &pm, pmlen)))
-			{
-			ECerr(EC_F_ECKEY_TYPE2PARAM, EC_R_DECODE_ERROR);
-			goto ecerr;
-			}
-		}
-	else if (ptype == V_ASN1_OBJECT)
-		{
-		ASN1_OBJECT *poid = pval;
-		EC_GROUP *group;
-
-		/* type == V_ASN1_OBJECT => the parameters are given
-		 * by an asn1 OID
-		 */
-		if ((eckey = EC_KEY_new()) == NULL)
-			{
-			ECerr(EC_F_ECKEY_TYPE2PARAM, ERR_R_MALLOC_FAILURE);
-			goto ecerr;
-			}
-		group = EC_GROUP_new_by_curve_name(OBJ_obj2nid(poid));
-		if (group == NULL)
-			goto ecerr;
-		EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE);
-		if (EC_KEY_set_group(eckey, group) == 0)
-			goto ecerr;
-		EC_GROUP_free(group);
-		}
-	else
-		{
-		ECerr(EC_F_ECKEY_TYPE2PARAM, EC_R_DECODE_ERROR);
-		goto ecerr;
-		}
-
-	return eckey;
-
-	ecerr:
-	if (eckey)
-		EC_KEY_free(eckey);
-	return NULL;
-	}
-
-static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
-	{
-	const unsigned char *p = NULL;
-	void *pval;
-	int ptype, pklen;
-	EC_KEY *eckey = NULL;
-	X509_ALGOR *palg;
-
-	if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
-		return 0;
-	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
-	eckey = eckey_type2param(ptype, pval);
-
-	if (!eckey)
-		{
-		ECerr(EC_F_ECKEY_PUB_DECODE, ERR_R_EC_LIB);
-		return 0;
-		}
-
-	/* We have parameters now set public key */
-	if (!o2i_ECPublicKey(&eckey, &p, pklen))
-		{
-		ECerr(EC_F_ECKEY_PUB_DECODE, EC_R_DECODE_ERROR);
-		goto ecerr;
-		}
-
-	EVP_PKEY_assign_EC_KEY(pkey, eckey);
-	return 1;
-
-	ecerr:
-	if (eckey)
-		EC_KEY_free(eckey);
-	return 0;
-	}
-
-static int eckey_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
-	{
-	int  r;
-	const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
-	const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
-	               *pb = EC_KEY_get0_public_key(b->pkey.ec);
-	r = EC_POINT_cmp(group, pa, pb, NULL);
-	if (r == 0)
-		return 1;
-	if (r == 1)
-		return 0;
-	return -2;
-	}
-
-static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
-	{
-	const unsigned char *p = NULL;
-	void *pval;
-	int ptype, pklen;
-	EC_KEY *eckey = NULL;
-	X509_ALGOR *palg;
-
-	if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
-		return 0;
-	X509_ALGOR_get0(NULL, &ptype, &pval, palg);
-
-	eckey = eckey_type2param(ptype, pval);
-
-	if (!eckey)
-		goto ecliberr;
-
-	/* We have parameters now set private key */
-	if (!d2i_ECPrivateKey(&eckey, &p, pklen))
-		{
-		ECerr(EC_F_ECKEY_PRIV_DECODE, EC_R_DECODE_ERROR);
-		goto ecerr;
-		}
-
-	/* calculate public key (if necessary) */
-	if (EC_KEY_get0_public_key(eckey) == NULL)
-		{
-		const BIGNUM *priv_key;
-		const EC_GROUP *group;
-		EC_POINT *pub_key;
-		/* the public key was not included in the SEC1 private
-		 * key => calculate the public key */
-		group   = EC_KEY_get0_group(eckey);
-		pub_key = EC_POINT_new(group);
-		if (pub_key == NULL)
-			{
-			ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
-			goto ecliberr;
-			}
-		if (!EC_POINT_copy(pub_key, EC_GROUP_get0_generator(group)))
-			{
-			EC_POINT_free(pub_key);
-			ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
-			goto ecliberr;
-			}
-		priv_key = EC_KEY_get0_private_key(eckey);
-		if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, NULL))
-			{
-			EC_POINT_free(pub_key);
-			ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
-			goto ecliberr;
-			}
-		if (EC_KEY_set_public_key(eckey, pub_key) == 0)
-			{
-			EC_POINT_free(pub_key);
-			ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
-			goto ecliberr;
-			}
-		EC_POINT_free(pub_key);
-		}
-
-	EVP_PKEY_assign_EC_KEY(pkey, eckey);
-	return 1;
-
-	ecliberr:
-	ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
-	ecerr:
-	if (eckey)
-		EC_KEY_free(eckey);
-	return 0;
-	}
-
-static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
-{
-	EC_KEY		*ec_key;
-	unsigned char	*ep, *p;
-	int 		eplen, ptype;
-	void		*pval;
-	unsigned int    tmp_flags, old_flags;
-
-	ec_key = pkey->pkey.ec;
-
-	if (!eckey_param2type(&ptype, &pval, ec_key))
-		{
-		ECerr(EC_F_ECKEY_PRIV_ENCODE, EC_R_DECODE_ERROR);
-		return 0;
-		}
-
-	/* set the private key */
-
-	/* do not include the parameters in the SEC1 private key
-	 * see PKCS#11 12.11 */
-	old_flags = EC_KEY_get_enc_flags(ec_key);
-	tmp_flags = old_flags | EC_PKEY_NO_PARAMETERS;
-	EC_KEY_set_enc_flags(ec_key, tmp_flags);
-	eplen = i2d_ECPrivateKey(ec_key, NULL);
-	if (!eplen)
-	{
-		EC_KEY_set_enc_flags(ec_key, old_flags);
-		ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
-		return 0;
-	}
-	ep = (unsigned char *) OPENSSL_malloc(eplen);
-	if (!ep)
-	{
-		EC_KEY_set_enc_flags(ec_key, old_flags);
-		ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
-		return 0;
-	}
-	p = ep;
-	if (!i2d_ECPrivateKey(ec_key, &p))
-	{
-		EC_KEY_set_enc_flags(ec_key, old_flags);
-		OPENSSL_free(ep);
-		ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
-	}
-	/* restore old encoding flags */
-	EC_KEY_set_enc_flags(ec_key, old_flags);
-
-	if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0,
-				ptype, pval, ep, eplen))
-		return 0;
-
-	return 1;
-}
-
-static int int_ec_size(const EVP_PKEY *pkey)
-	{
-	return ECDSA_size(pkey->pkey.ec);
-	}
-
-static int ec_bits(const EVP_PKEY *pkey)
-	{
-	BIGNUM *order = BN_new();
-	const EC_GROUP *group;
-	int ret;
-
-	if (!order)
-		{
-		ERR_clear_error();
-		return 0;
-		}
-	group = EC_KEY_get0_group(pkey->pkey.ec);
-	if (!EC_GROUP_get_order(group, order, NULL))
-		{
-		ERR_clear_error();
-		return 0;
-		}
-
-	ret = BN_num_bits(order);
-	BN_free(order);
-	return ret;
-	}
-
-static int ec_missing_parameters(const EVP_PKEY *pkey)
-	{
-	if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
-		return 1;
-	return 0;
-	}
-
-static int ec_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
-	{
-	EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
-	if (group == NULL)
-		return 0;
-	if (EC_KEY_set_group(to->pkey.ec, group) == 0)
-		return 0;
-	EC_GROUP_free(group);
-	return 1;
-	}
-
-static int ec_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
-	{
-	const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
-	               *group_b = EC_KEY_get0_group(b->pkey.ec);
-	if (EC_GROUP_cmp(group_a, group_b, NULL))
-		return 0;
-	else
-		return 1;
-	}
-
-static void int_ec_free(EVP_PKEY *pkey)
-	{
-	EC_KEY_free(pkey->pkey.ec);
-	}
-
-static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
-	{
-	unsigned char *buffer=NULL;
-	const char *ecstr;
-	size_t	buf_len=0, i;
-	int     ret=0, reason=ERR_R_BIO_LIB;
-	BIGNUM  *pub_key=NULL, *order=NULL;
-	BN_CTX  *ctx=NULL;
-	const EC_GROUP *group;
-	const EC_POINT *public_key;
-	const BIGNUM *priv_key;
- 
-	if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
-		{
-		reason = ERR_R_PASSED_NULL_PARAMETER;
-		goto err;
-		}
-
-	ctx = BN_CTX_new();
-	if (ctx == NULL)
-		{
-		reason = ERR_R_MALLOC_FAILURE;
-		goto err;
-		}
-
-	if (ktype > 0)
-		{
-		public_key = EC_KEY_get0_public_key(x);
-		if ((pub_key = EC_POINT_point2bn(group, public_key,
-			EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
-			{
-			reason = ERR_R_EC_LIB;
-			goto err;
-			}
-		if (pub_key)
-			buf_len = (size_t)BN_num_bytes(pub_key);
-		}
-
-	if (ktype == 2)
-		{
-		priv_key = EC_KEY_get0_private_key(x);
-		if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len)
-			buf_len = i;
-		}
-	else
-		priv_key = NULL;
-
-	if (ktype > 0)
-		{
-		buf_len += 10;
-		if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
-			{
-			reason = ERR_R_MALLOC_FAILURE;
-			goto err;
-			}
-		}
-	if (ktype == 2)
-		ecstr = "Private-Key";
-	else if (ktype == 1)
-		ecstr = "Public-Key";
-	else
-		ecstr = "ECDSA-Parameters";
-
-	if (!BIO_indent(bp, off, 128))
-		goto err;
-	if ((order = BN_new()) == NULL)
-		goto err;
-	if (!EC_GROUP_get_order(group, order, NULL))
-		goto err;
-	if (BIO_printf(bp, "%s: (%d bit)\n", ecstr,
-		BN_num_bits(order)) <= 0) goto err;
-  
-	if ((priv_key != NULL) && !ASN1_bn_print(bp, "priv:", priv_key, 
-		buffer, off))
-		goto err;
-	if ((pub_key != NULL) && !ASN1_bn_print(bp, "pub: ", pub_key,
-		buffer, off))
-		goto err;
-	if (!ECPKParameters_print(bp, group, off))
-		goto err;
-	ret=1;
-err:
-	if (!ret)
- 		ECerr(EC_F_DO_EC_KEY_PRINT, reason);
-	if (pub_key) 
-		BN_free(pub_key);
-	if (order)
-		BN_free(order);
-	if (ctx)
-		BN_CTX_free(ctx);
-	if (buffer != NULL)
-		OPENSSL_free(buffer);
-	return(ret);
-	}
-
-static int eckey_param_decode(EVP_PKEY *pkey,
-					const unsigned char **pder, int derlen)
-	{
-	EC_KEY *eckey;
-	if (!(eckey = d2i_ECParameters(NULL, pder, derlen)))
-		{
-		ECerr(EC_F_ECKEY_PARAM_DECODE, ERR_R_EC_LIB);
-		return 0;
-		}
-	EVP_PKEY_assign_EC_KEY(pkey, eckey);
-	return 1;
-	}
-
-static int eckey_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
-	{
-	return i2d_ECParameters(pkey->pkey.ec, pder);
-	}
-
-static int eckey_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 0);
-	}
-
-static int eckey_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 1);
-	}
-
-
-static int eckey_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *ctx)
-	{
-	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 2);
-	}
-
-static int old_ec_priv_decode(EVP_PKEY *pkey,
-					const unsigned char **pder, int derlen)
-	{
-	EC_KEY *ec;
-	if (!(ec = d2i_ECPrivateKey (NULL, pder, derlen)))
-		{
-		ECerr(EC_F_OLD_EC_PRIV_DECODE, EC_R_DECODE_ERROR);
-		return 0;
-		}
-	EVP_PKEY_assign_EC_KEY(pkey, ec);
-	return 1;
-	}
-
-static int old_ec_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
-	{
-	return i2d_ECPrivateKey(pkey->pkey.ec, pder);
-	}
-
-static int ec_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
-	{
-	switch (op)
-		{
-		case ASN1_PKEY_CTRL_PKCS7_SIGN:
-		if (arg1 == 0)
-			{
-			int snid, hnid;
-			X509_ALGOR *alg1, *alg2;
-			PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);
-			if (alg1 == NULL || alg1->algorithm == NULL)
-				return -1;
-			hnid = OBJ_obj2nid(alg1->algorithm);
-			if (hnid == NID_undef)
-				return -1;
-			if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
-				return -1; 
-			X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
-			}
-		return 1;
-#ifndef OPENSSL_NO_CMS
-		case ASN1_PKEY_CTRL_CMS_SIGN:
-		if (arg1 == 0)
-			{
-			int snid, hnid;
-			X509_ALGOR *alg1, *alg2;
-			CMS_SignerInfo_get0_algs(arg2, NULL, NULL,
-								&alg1, &alg2);
-			if (alg1 == NULL || alg1->algorithm == NULL)
-				return -1;
-			hnid = OBJ_obj2nid(alg1->algorithm);
-			if (hnid == NID_undef)
-				return -1;
-			if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
-				return -1; 
-			X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
-			}
-		return 1;
-#endif
-
-		case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
-		*(int *)arg2 = NID_sha1;
-		return 2;
-
-		default:
-		return -2;
-
-		}
-
-	}
-
-const EVP_PKEY_ASN1_METHOD eckey_asn1_meth = 
-	{
-	EVP_PKEY_EC,
-	EVP_PKEY_EC,
-	0,
-	"EC",
-	"OpenSSL EC algorithm",
-
-	eckey_pub_decode,
-	eckey_pub_encode,
-	eckey_pub_cmp,
-	eckey_pub_print,
-
-	eckey_priv_decode,
-	eckey_priv_encode,
-	eckey_priv_print,
-
-	int_ec_size,
-	ec_bits,
-
-	eckey_param_decode,
-	eckey_param_encode,
-	ec_missing_parameters,
-	ec_copy_parameters,
-	ec_cmp_parameters,
-	eckey_param_print,
-	0,
-
-	int_ec_free,
-	ec_pkey_ctrl,
-	old_ec_priv_decode,
-	old_ec_priv_encode
-	};