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Diffstat (limited to 'openssl/crypto/ec/ec_ameth.c')
-rw-r--r--openssl/crypto/ec/ec_ameth.c659
1 files changed, 0 insertions, 659 deletions
diff --git a/openssl/crypto/ec/ec_ameth.c b/openssl/crypto/ec/ec_ameth.c
deleted file mode 100644
index c00f7d74..00000000
--- a/openssl/crypto/ec/ec_ameth.c
+++ /dev/null
@@ -1,659 +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,
-
- int_ec_free,
- ec_pkey_ctrl,
- old_ec_priv_decode,
- old_ec_priv_encode
- };
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