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Diffstat (limited to 'thirdparty/openssl/crypto/ec/ec_pmeth.c')
-rw-r--r--thirdparty/openssl/crypto/ec/ec_pmeth.c530
1 files changed, 0 insertions, 530 deletions
diff --git a/thirdparty/openssl/crypto/ec/ec_pmeth.c b/thirdparty/openssl/crypto/ec/ec_pmeth.c
deleted file mode 100644
index b76749010c..0000000000
--- a/thirdparty/openssl/crypto/ec/ec_pmeth.c
+++ /dev/null
@@ -1,530 +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/asn1t.h>
-#include <openssl/x509.h>
-#include <openssl/ec.h>
-#include "ec_lcl.h"
-#include <openssl/ecdsa.h>
-#include <openssl/evp.h>
-#include "evp_locl.h"
-
-/* EC pkey context structure */
-
-typedef struct {
- /* Key and paramgen group */
- EC_GROUP *gen_group;
- /* message digest */
- const EVP_MD *md;
- /* Duplicate key if custom cofactor needed */
- EC_KEY *co_key;
- /* Cofactor mode */
- signed char cofactor_mode;
- /* KDF (if any) to use for ECDH */
- char kdf_type;
- /* Message digest to use for key derivation */
- const EVP_MD *kdf_md;
- /* User key material */
- unsigned char *kdf_ukm;
- size_t kdf_ukmlen;
- /* KDF output length */
- size_t kdf_outlen;
-} EC_PKEY_CTX;
-
-static int pkey_ec_init(EVP_PKEY_CTX *ctx)
-{
- EC_PKEY_CTX *dctx;
- dctx = OPENSSL_malloc(sizeof(EC_PKEY_CTX));
- if (!dctx)
- return 0;
- dctx->gen_group = NULL;
- dctx->md = NULL;
-
- dctx->cofactor_mode = -1;
- dctx->co_key = NULL;
- dctx->kdf_type = EVP_PKEY_ECDH_KDF_NONE;
- dctx->kdf_md = NULL;
- dctx->kdf_outlen = 0;
- dctx->kdf_ukm = NULL;
- dctx->kdf_ukmlen = 0;
-
- ctx->data = dctx;
-
- return 1;
-}
-
-static int pkey_ec_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
-{
- EC_PKEY_CTX *dctx, *sctx;
- if (!pkey_ec_init(dst))
- return 0;
- sctx = src->data;
- dctx = dst->data;
- if (sctx->gen_group) {
- dctx->gen_group = EC_GROUP_dup(sctx->gen_group);
- if (!dctx->gen_group)
- return 0;
- }
- dctx->md = sctx->md;
-
- if (sctx->co_key) {
- dctx->co_key = EC_KEY_dup(sctx->co_key);
- if (!dctx->co_key)
- return 0;
- }
- dctx->kdf_type = sctx->kdf_type;
- dctx->kdf_md = sctx->kdf_md;
- dctx->kdf_outlen = sctx->kdf_outlen;
- if (sctx->kdf_ukm) {
- dctx->kdf_ukm = BUF_memdup(sctx->kdf_ukm, sctx->kdf_ukmlen);
- if (!dctx->kdf_ukm)
- return 0;
- } else
- dctx->kdf_ukm = NULL;
- dctx->kdf_ukmlen = sctx->kdf_ukmlen;
- return 1;
-}
-
-static void pkey_ec_cleanup(EVP_PKEY_CTX *ctx)
-{
- EC_PKEY_CTX *dctx = ctx->data;
- if (dctx) {
- if (dctx->gen_group)
- EC_GROUP_free(dctx->gen_group);
- if (dctx->co_key)
- EC_KEY_free(dctx->co_key);
- if (dctx->kdf_ukm)
- OPENSSL_free(dctx->kdf_ukm);
- OPENSSL_free(dctx);
- }
-}
-
-static int pkey_ec_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
- const unsigned char *tbs, size_t tbslen)
-{
- int ret, type;
- unsigned int sltmp;
- EC_PKEY_CTX *dctx = ctx->data;
- EC_KEY *ec = ctx->pkey->pkey.ec;
-
- if (!sig) {
- *siglen = ECDSA_size(ec);
- return 1;
- } else if (*siglen < (size_t)ECDSA_size(ec)) {
- ECerr(EC_F_PKEY_EC_SIGN, EC_R_BUFFER_TOO_SMALL);
- return 0;
- }
-
- if (dctx->md)
- type = EVP_MD_type(dctx->md);
- else
- type = NID_sha1;
-
- ret = ECDSA_sign(type, tbs, tbslen, sig, &sltmp, ec);
-
- if (ret <= 0)
- return ret;
- *siglen = (size_t)sltmp;
- return 1;
-}
-
-static int pkey_ec_verify(EVP_PKEY_CTX *ctx,
- const unsigned char *sig, size_t siglen,
- const unsigned char *tbs, size_t tbslen)
-{
- int ret, type;
- EC_PKEY_CTX *dctx = ctx->data;
- EC_KEY *ec = ctx->pkey->pkey.ec;
-
- if (dctx->md)
- type = EVP_MD_type(dctx->md);
- else
- type = NID_sha1;
-
- ret = ECDSA_verify(type, tbs, tbslen, sig, siglen, ec);
-
- return ret;
-}
-
-#ifndef OPENSSL_NO_ECDH
-static int pkey_ec_derive(EVP_PKEY_CTX *ctx, unsigned char *key,
- size_t *keylen)
-{
- int ret;
- size_t outlen;
- const EC_POINT *pubkey = NULL;
- EC_KEY *eckey;
- EC_PKEY_CTX *dctx = ctx->data;
- if (!ctx->pkey || !ctx->peerkey) {
- ECerr(EC_F_PKEY_EC_DERIVE, EC_R_KEYS_NOT_SET);
- return 0;
- }
-
- eckey = dctx->co_key ? dctx->co_key : ctx->pkey->pkey.ec;
-
- if (!key) {
- const EC_GROUP *group;
- group = EC_KEY_get0_group(eckey);
- *keylen = (EC_GROUP_get_degree(group) + 7) / 8;
- return 1;
- }
- pubkey = EC_KEY_get0_public_key(ctx->peerkey->pkey.ec);
-
- /*
- * NB: unlike PKCS#3 DH, if *outlen is less than maximum size this is not
- * an error, the result is truncated.
- */
-
- outlen = *keylen;
-
- ret = ECDH_compute_key(key, outlen, pubkey, eckey, 0);
- if (ret <= 0)
- return 0;
- *keylen = ret;
- return 1;
-}
-
-static int pkey_ec_kdf_derive(EVP_PKEY_CTX *ctx,
- unsigned char *key, size_t *keylen)
-{
- EC_PKEY_CTX *dctx = ctx->data;
- unsigned char *ktmp = NULL;
- size_t ktmplen;
- int rv = 0;
- if (dctx->kdf_type == EVP_PKEY_ECDH_KDF_NONE)
- return pkey_ec_derive(ctx, key, keylen);
- if (!key) {
- *keylen = dctx->kdf_outlen;
- return 1;
- }
- if (*keylen != dctx->kdf_outlen)
- return 0;
- if (!pkey_ec_derive(ctx, NULL, &ktmplen))
- return 0;
- ktmp = OPENSSL_malloc(ktmplen);
- if (!ktmp)
- return 0;
- if (!pkey_ec_derive(ctx, ktmp, &ktmplen))
- goto err;
- /* Do KDF stuff */
- if (!ECDH_KDF_X9_62(key, *keylen, ktmp, ktmplen,
- dctx->kdf_ukm, dctx->kdf_ukmlen, dctx->kdf_md))
- goto err;
- rv = 1;
-
- err:
- if (ktmp) {
- OPENSSL_cleanse(ktmp, ktmplen);
- OPENSSL_free(ktmp);
- }
- return rv;
-}
-#endif
-
-static int pkey_ec_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
-{
- EC_PKEY_CTX *dctx = ctx->data;
- EC_GROUP *group;
- switch (type) {
- case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
- group = EC_GROUP_new_by_curve_name(p1);
- if (group == NULL) {
- ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_CURVE);
- return 0;
- }
- if (dctx->gen_group)
- EC_GROUP_free(dctx->gen_group);
- dctx->gen_group = group;
- return 1;
-
- case EVP_PKEY_CTRL_EC_PARAM_ENC:
- if (!dctx->gen_group) {
- ECerr(EC_F_PKEY_EC_CTRL, EC_R_NO_PARAMETERS_SET);
- return 0;
- }
- EC_GROUP_set_asn1_flag(dctx->gen_group, p1);
- return 1;
-
-#ifndef OPENSSL_NO_ECDH
- case EVP_PKEY_CTRL_EC_ECDH_COFACTOR:
- if (p1 == -2) {
- if (dctx->cofactor_mode != -1)
- return dctx->cofactor_mode;
- else {
- EC_KEY *ec_key = ctx->pkey->pkey.ec;
- return EC_KEY_get_flags(ec_key) & EC_FLAG_COFACTOR_ECDH ? 1 :
- 0;
- }
- } else if (p1 < -1 || p1 > 1)
- return -2;
- dctx->cofactor_mode = p1;
- if (p1 != -1) {
- EC_KEY *ec_key = ctx->pkey->pkey.ec;
- if (!ec_key->group)
- return -2;
- /* If cofactor is 1 cofactor mode does nothing */
- if (BN_is_one(&ec_key->group->cofactor))
- return 1;
- if (!dctx->co_key) {
- dctx->co_key = EC_KEY_dup(ec_key);
- if (!dctx->co_key)
- return 0;
- }
- if (p1)
- EC_KEY_set_flags(dctx->co_key, EC_FLAG_COFACTOR_ECDH);
- else
- EC_KEY_clear_flags(dctx->co_key, EC_FLAG_COFACTOR_ECDH);
- } else if (dctx->co_key) {
- EC_KEY_free(dctx->co_key);
- dctx->co_key = NULL;
- }
- return 1;
-#endif
-
- case EVP_PKEY_CTRL_EC_KDF_TYPE:
- if (p1 == -2)
- return dctx->kdf_type;
- if (p1 != EVP_PKEY_ECDH_KDF_NONE && p1 != EVP_PKEY_ECDH_KDF_X9_62)
- return -2;
- dctx->kdf_type = p1;
- return 1;
-
- case EVP_PKEY_CTRL_EC_KDF_MD:
- dctx->kdf_md = p2;
- return 1;
-
- case EVP_PKEY_CTRL_GET_EC_KDF_MD:
- *(const EVP_MD **)p2 = dctx->kdf_md;
- return 1;
-
- case EVP_PKEY_CTRL_EC_KDF_OUTLEN:
- if (p1 <= 0)
- return -2;
- dctx->kdf_outlen = (size_t)p1;
- return 1;
-
- case EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN:
- *(int *)p2 = dctx->kdf_outlen;
- return 1;
-
- case EVP_PKEY_CTRL_EC_KDF_UKM:
- if (dctx->kdf_ukm)
- OPENSSL_free(dctx->kdf_ukm);
- dctx->kdf_ukm = p2;
- if (p2)
- dctx->kdf_ukmlen = p1;
- else
- dctx->kdf_ukmlen = 0;
- return 1;
-
- case EVP_PKEY_CTRL_GET_EC_KDF_UKM:
- *(unsigned char **)p2 = dctx->kdf_ukm;
- return dctx->kdf_ukmlen;
-
- case EVP_PKEY_CTRL_MD:
- if (EVP_MD_type((const EVP_MD *)p2) != NID_sha1 &&
- EVP_MD_type((const EVP_MD *)p2) != NID_ecdsa_with_SHA1 &&
- EVP_MD_type((const EVP_MD *)p2) != NID_sha224 &&
- EVP_MD_type((const EVP_MD *)p2) != NID_sha256 &&
- EVP_MD_type((const EVP_MD *)p2) != NID_sha384 &&
- EVP_MD_type((const EVP_MD *)p2) != NID_sha512) {
- ECerr(EC_F_PKEY_EC_CTRL, EC_R_INVALID_DIGEST_TYPE);
- return 0;
- }
- dctx->md = p2;
- return 1;
-
- case EVP_PKEY_CTRL_GET_MD:
- *(const EVP_MD **)p2 = dctx->md;
- return 1;
-
- case EVP_PKEY_CTRL_PEER_KEY:
- /* Default behaviour is OK */
- case EVP_PKEY_CTRL_DIGESTINIT:
- case EVP_PKEY_CTRL_PKCS7_SIGN:
- case EVP_PKEY_CTRL_CMS_SIGN:
- return 1;
-
- default:
- return -2;
-
- }
-}
-
-static int pkey_ec_ctrl_str(EVP_PKEY_CTX *ctx,
- const char *type, const char *value)
-{
- if (!strcmp(type, "ec_paramgen_curve")) {
- int nid;
- nid = EC_curve_nist2nid(value);
- if (nid == NID_undef)
- nid = OBJ_sn2nid(value);
- if (nid == NID_undef)
- nid = OBJ_ln2nid(value);
- if (nid == NID_undef) {
- ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_CURVE);
- return 0;
- }
- return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid);
- } else if (!strcmp(type, "ec_param_enc")) {
- int param_enc;
- if (!strcmp(value, "explicit"))
- param_enc = 0;
- else if (!strcmp(value, "named_curve"))
- param_enc = OPENSSL_EC_NAMED_CURVE;
- else
- return -2;
- return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc);
- } else if (!strcmp(type, "ecdh_kdf_md")) {
- const EVP_MD *md;
- if (!(md = EVP_get_digestbyname(value))) {
- ECerr(EC_F_PKEY_EC_CTRL_STR, EC_R_INVALID_DIGEST);
- return 0;
- }
- return EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md);
- } else if (!strcmp(type, "ecdh_cofactor_mode")) {
- int co_mode;
- co_mode = atoi(value);
- return EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, co_mode);
- }
-
- return -2;
-}
-
-static int pkey_ec_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
-{
- EC_KEY *ec = NULL;
- EC_PKEY_CTX *dctx = ctx->data;
- int ret = 0;
- if (dctx->gen_group == NULL) {
- ECerr(EC_F_PKEY_EC_PARAMGEN, EC_R_NO_PARAMETERS_SET);
- return 0;
- }
- ec = EC_KEY_new();
- if (!ec)
- return 0;
- ret = EC_KEY_set_group(ec, dctx->gen_group);
- if (ret)
- EVP_PKEY_assign_EC_KEY(pkey, ec);
- else
- EC_KEY_free(ec);
- return ret;
-}
-
-static int pkey_ec_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
-{
- EC_KEY *ec = NULL;
- EC_PKEY_CTX *dctx = ctx->data;
- if (ctx->pkey == NULL && dctx->gen_group == NULL) {
- ECerr(EC_F_PKEY_EC_KEYGEN, EC_R_NO_PARAMETERS_SET);
- return 0;
- }
- ec = EC_KEY_new();
- if (!ec)
- return 0;
- EVP_PKEY_assign_EC_KEY(pkey, ec);
- if (ctx->pkey) {
- /* Note: if error return, pkey is freed by parent routine */
- if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
- return 0;
- } else {
- if (!EC_KEY_set_group(ec, dctx->gen_group))
- return 0;
- }
- return EC_KEY_generate_key(pkey->pkey.ec);
-}
-
-const EVP_PKEY_METHOD ec_pkey_meth = {
- EVP_PKEY_EC,
- 0,
- pkey_ec_init,
- pkey_ec_copy,
- pkey_ec_cleanup,
-
- 0,
- pkey_ec_paramgen,
-
- 0,
- pkey_ec_keygen,
-
- 0,
- pkey_ec_sign,
-
- 0,
- pkey_ec_verify,
-
- 0, 0,
-
- 0, 0, 0, 0,
-
- 0, 0,
-
- 0, 0,
-
- 0,
-#ifndef OPENSSL_NO_ECDH
- pkey_ec_kdf_derive,
-#else
- 0,
-#endif
-
- pkey_ec_ctrl,
- pkey_ec_ctrl_str
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 12:04:08 +0000