| /* |
| * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| /* |
| * ECDH and ECDSA low level APIs are deprecated for public use, but still ok |
| * for internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| #include <stdio.h> |
| #include "internal/cryptlib.h" |
| #include <openssl/x509.h> |
| #include <openssl/ec.h> |
| #include <openssl/bn.h> |
| #include <openssl/asn1t.h> |
| #include "crypto/asn1.h" |
| #include "crypto/evp.h" |
| #include "crypto/x509.h" |
| #include <openssl/core_names.h> |
| #include <openssl/param_build.h> |
| #include "ec_local.h" |
| |
| static int eckey_param2type(int *pptype, void **ppval, const EC_KEY *ec_key) |
| { |
| const EC_GROUP *group; |
| int nid; |
| |
| if (ec_key == NULL || (group = EC_KEY_get0_group(ec_key)) == NULL) { |
| ERR_raise(ERR_LIB_EC, 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 */ |
| { |
| ASN1_OBJECT *asn1obj = OBJ_nid2obj(nid); |
| |
| if (asn1obj == NULL || OBJ_length(asn1obj) == 0) { |
| ASN1_OBJECT_free(asn1obj); |
| ERR_raise(ERR_LIB_EC, EC_R_MISSING_OID); |
| return 0; |
| } |
| *ppval = asn1obj; |
| *pptype = V_ASN1_OBJECT; |
| } else { /* explicit parameters */ |
| |
| ASN1_STRING *pstr = NULL; |
| pstr = ASN1_STRING_new(); |
| if (pstr == NULL) |
| return 0; |
| pstr->length = i2d_ECParameters(ec_key, &pstr->data); |
| if (pstr->length <= 0) { |
| ASN1_STRING_free(pstr); |
| ERR_raise(ERR_LIB_EC, 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) |
| { |
| const 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)) { |
| ERR_raise(ERR_LIB_EC, ERR_R_EC_LIB); |
| return 0; |
| } |
| penclen = i2o_ECPublicKey(ec_key, NULL); |
| if (penclen <= 0) |
| goto err; |
| penc = OPENSSL_malloc(penclen); |
| if (penc == NULL) |
| 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); |
| OPENSSL_free(penc); |
| return 0; |
| } |
| |
| static int eckey_pub_decode(EVP_PKEY *pkey, const X509_PUBKEY *pubkey) |
| { |
| const unsigned char *p = NULL; |
| int pklen; |
| EC_KEY *eckey = NULL; |
| X509_ALGOR *palg; |
| OSSL_LIB_CTX *libctx = NULL; |
| const char *propq = NULL; |
| |
| if (!ossl_x509_PUBKEY_get0_libctx(&libctx, &propq, pubkey) |
| || !X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) |
| return 0; |
| eckey = ossl_ec_key_param_from_x509_algor(palg, libctx, propq); |
| |
| if (!eckey) |
| return 0; |
| |
| /* We have parameters now set public key */ |
| if (!o2i_ECPublicKey(&eckey, &p, pklen)) { |
| ERR_raise(ERR_LIB_EC, EC_R_DECODE_ERROR); |
| goto ecerr; |
| } |
| |
| EVP_PKEY_assign_EC_KEY(pkey, eckey); |
| return 1; |
| |
| ecerr: |
| 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); |
| |
| if (group == NULL || pa == NULL || pb == NULL) |
| return -2; |
| 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_ex(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8, |
| OSSL_LIB_CTX *libctx, const char *propq) |
| { |
| int ret = 0; |
| EC_KEY *eckey = ossl_ec_key_from_pkcs8(p8, libctx, propq); |
| |
| if (eckey != NULL) { |
| ret = 1; |
| EVP_PKEY_assign_EC_KEY(pkey, eckey); |
| } |
| |
| return ret; |
| } |
| |
| static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) |
| { |
| EC_KEY ec_key = *(pkey->pkey.ec); |
| unsigned char *ep, *p; |
| int eplen, ptype; |
| void *pval; |
| unsigned int old_flags; |
| |
| if (!eckey_param2type(&ptype, &pval, &ec_key)) { |
| ERR_raise(ERR_LIB_EC, 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); |
| EC_KEY_set_enc_flags(&ec_key, old_flags | EC_PKEY_NO_PARAMETERS); |
| |
| eplen = i2d_ECPrivateKey(&ec_key, NULL); |
| if (!eplen) { |
| ERR_raise(ERR_LIB_EC, ERR_R_EC_LIB); |
| return 0; |
| } |
| ep = OPENSSL_malloc(eplen); |
| if (ep == NULL) { |
| ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| p = ep; |
| if (!i2d_ECPrivateKey(&ec_key, &p)) { |
| OPENSSL_free(ep); |
| ERR_raise(ERR_LIB_EC, ERR_R_EC_LIB); |
| return 0; |
| } |
| |
| if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0, |
| ptype, pval, ep, eplen)) { |
| OPENSSL_free(ep); |
| 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) |
| { |
| return EC_GROUP_order_bits(EC_KEY_get0_group(pkey->pkey.ec)); |
| } |
| |
| static int ec_security_bits(const EVP_PKEY *pkey) |
| { |
| int ecbits = ec_bits(pkey); |
| |
| if (ecbits >= 512) |
| return 256; |
| if (ecbits >= 384) |
| return 192; |
| if (ecbits >= 256) |
| return 128; |
| if (ecbits >= 224) |
| return 112; |
| if (ecbits >= 160) |
| return 80; |
| return ecbits / 2; |
| } |
| |
| static int ec_missing_parameters(const EVP_PKEY *pkey) |
| { |
| if (pkey->pkey.ec == NULL || 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 (to->pkey.ec == NULL) { |
| to->pkey.ec = EC_KEY_new(); |
| if (to->pkey.ec == NULL) |
| goto err; |
| } |
| if (EC_KEY_set_group(to->pkey.ec, group) == 0) |
| goto err; |
| EC_GROUP_free(group); |
| return 1; |
| err: |
| EC_GROUP_free(group); |
| return 0; |
| } |
| |
| 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 (group_a == NULL || group_b == NULL) |
| return -2; |
| 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); |
| } |
| |
| typedef enum { |
| EC_KEY_PRINT_PRIVATE, |
| EC_KEY_PRINT_PUBLIC, |
| EC_KEY_PRINT_PARAM |
| } ec_print_t; |
| |
| static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, ec_print_t ktype) |
| { |
| const char *ecstr; |
| unsigned char *priv = NULL, *pub = NULL; |
| size_t privlen = 0, publen = 0; |
| int ret = 0; |
| const EC_GROUP *group; |
| |
| if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) { |
| ERR_raise(ERR_LIB_EC, ERR_R_PASSED_NULL_PARAMETER); |
| return 0; |
| } |
| |
| if (ktype != EC_KEY_PRINT_PARAM && EC_KEY_get0_public_key(x) != NULL) { |
| publen = EC_KEY_key2buf(x, EC_KEY_get_conv_form(x), &pub, NULL); |
| if (publen == 0) |
| goto err; |
| } |
| |
| if (ktype == EC_KEY_PRINT_PRIVATE && EC_KEY_get0_private_key(x) != NULL) { |
| privlen = EC_KEY_priv2buf(x, &priv); |
| if (privlen == 0) |
| goto err; |
| } |
| |
| if (ktype == EC_KEY_PRINT_PRIVATE) |
| ecstr = "Private-Key"; |
| else if (ktype == EC_KEY_PRINT_PUBLIC) |
| ecstr = "Public-Key"; |
| else |
| ecstr = "ECDSA-Parameters"; |
| |
| if (!BIO_indent(bp, off, 128)) |
| goto err; |
| if (BIO_printf(bp, "%s: (%d bit)\n", ecstr, |
| EC_GROUP_order_bits(group)) <= 0) |
| goto err; |
| |
| if (privlen != 0) { |
| if (BIO_printf(bp, "%*spriv:\n", off, "") <= 0) |
| goto err; |
| if (ASN1_buf_print(bp, priv, privlen, off + 4) == 0) |
| goto err; |
| } |
| |
| if (publen != 0) { |
| if (BIO_printf(bp, "%*spub:\n", off, "") <= 0) |
| goto err; |
| if (ASN1_buf_print(bp, pub, publen, off + 4) == 0) |
| goto err; |
| } |
| |
| if (!ECPKParameters_print(bp, group, off)) |
| goto err; |
| ret = 1; |
| err: |
| if (!ret) |
| ERR_raise(ERR_LIB_EC, ERR_R_EC_LIB); |
| OPENSSL_clear_free(priv, privlen); |
| OPENSSL_free(pub); |
| 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)) == NULL) |
| 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, EC_KEY_PRINT_PARAM); |
| } |
| |
| 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, EC_KEY_PRINT_PUBLIC); |
| } |
| |
| 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, EC_KEY_PRINT_PRIVATE); |
| } |
| |
| 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)) == NULL) |
| 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_DEFAULT_MD_NID: |
| if (EVP_PKEY_get_id(pkey) == EVP_PKEY_SM2) { |
| /* For SM2, the only valid digest-alg is SM3 */ |
| *(int *)arg2 = NID_sm3; |
| return 2; /* Make it mandatory */ |
| } |
| *(int *)arg2 = NID_sha256; |
| return 1; |
| |
| case ASN1_PKEY_CTRL_SET1_TLS_ENCPT: |
| /* We should only be here if we have a legacy key */ |
| if (!ossl_assert(evp_pkey_is_legacy(pkey))) |
| return 0; |
| return EC_KEY_oct2key(evp_pkey_get0_EC_KEY_int(pkey), arg2, arg1, NULL); |
| |
| case ASN1_PKEY_CTRL_GET1_TLS_ENCPT: |
| return EC_KEY_key2buf(EVP_PKEY_get0_EC_KEY(pkey), |
| POINT_CONVERSION_UNCOMPRESSED, arg2, NULL); |
| |
| default: |
| return -2; |
| } |
| } |
| |
| static int ec_pkey_check(const EVP_PKEY *pkey) |
| { |
| EC_KEY *eckey = pkey->pkey.ec; |
| |
| /* stay consistent to what EVP_PKEY_check demands */ |
| if (eckey->priv_key == NULL) { |
| ERR_raise(ERR_LIB_EC, EC_R_MISSING_PRIVATE_KEY); |
| return 0; |
| } |
| |
| return EC_KEY_check_key(eckey); |
| } |
| |
| static int ec_pkey_public_check(const EVP_PKEY *pkey) |
| { |
| EC_KEY *eckey = pkey->pkey.ec; |
| |
| /* |
| * Note: it unnecessary to check eckey->pub_key here since |
| * it will be checked in EC_KEY_check_key(). In fact, the |
| * EC_KEY_check_key() mainly checks the public key, and checks |
| * the private key optionally (only if there is one). So if |
| * someone passes a whole EC key (public + private), this |
| * will also work... |
| */ |
| |
| return EC_KEY_check_key(eckey); |
| } |
| |
| static int ec_pkey_param_check(const EVP_PKEY *pkey) |
| { |
| EC_KEY *eckey = pkey->pkey.ec; |
| |
| /* stay consistent to what EVP_PKEY_check demands */ |
| if (eckey->group == NULL) { |
| ERR_raise(ERR_LIB_EC, EC_R_MISSING_PARAMETERS); |
| return 0; |
| } |
| |
| return EC_GROUP_check(eckey->group, NULL); |
| } |
| |
| static |
| size_t ec_pkey_dirty_cnt(const EVP_PKEY *pkey) |
| { |
| return pkey->pkey.ec->dirty_cnt; |
| } |
| |
| static |
| int ec_pkey_export_to(const EVP_PKEY *from, void *to_keydata, |
| OSSL_FUNC_keymgmt_import_fn *importer, |
| OSSL_LIB_CTX *libctx, const char *propq) |
| { |
| const EC_KEY *eckey = NULL; |
| const EC_GROUP *ecg = NULL; |
| unsigned char *pub_key_buf = NULL, *gen_buf = NULL; |
| size_t pub_key_buflen; |
| OSSL_PARAM_BLD *tmpl; |
| OSSL_PARAM *params = NULL; |
| const BIGNUM *priv_key = NULL; |
| const EC_POINT *pub_point = NULL; |
| int selection = 0; |
| int rv = 0; |
| BN_CTX *bnctx = NULL; |
| |
| if (from == NULL |
| || (eckey = from->pkey.ec) == NULL |
| || (ecg = EC_KEY_get0_group(eckey)) == NULL) |
| return 0; |
| |
| tmpl = OSSL_PARAM_BLD_new(); |
| if (tmpl == NULL) |
| return 0; |
| |
| /* |
| * EC_POINT_point2buf() can generate random numbers in some |
| * implementations so we need to ensure we use the correct libctx. |
| */ |
| bnctx = BN_CTX_new_ex(libctx); |
| if (bnctx == NULL) |
| goto err; |
| BN_CTX_start(bnctx); |
| |
| /* export the domain parameters */ |
| if (!ossl_ec_group_todata(ecg, tmpl, NULL, libctx, propq, bnctx, &gen_buf)) |
| goto err; |
| selection |= OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS; |
| |
| priv_key = EC_KEY_get0_private_key(eckey); |
| pub_point = EC_KEY_get0_public_key(eckey); |
| |
| if (pub_point != NULL) { |
| /* convert pub_point to a octet string according to the SECG standard */ |
| if ((pub_key_buflen = EC_POINT_point2buf(ecg, pub_point, |
| POINT_CONVERSION_COMPRESSED, |
| &pub_key_buf, bnctx)) == 0 |
| || !OSSL_PARAM_BLD_push_octet_string(tmpl, |
| OSSL_PKEY_PARAM_PUB_KEY, |
| pub_key_buf, |
| pub_key_buflen)) |
| goto err; |
| selection |= OSSL_KEYMGMT_SELECT_PUBLIC_KEY; |
| } |
| |
| if (priv_key != NULL) { |
| size_t sz; |
| int ecbits; |
| int ecdh_cofactor_mode; |
| |
| /* |
| * Key import/export should never leak the bit length of the secret |
| * scalar in the key. |
| * |
| * For this reason, on export we use padded BIGNUMs with fixed length. |
| * |
| * When importing we also should make sure that, even if short lived, |
| * the newly created BIGNUM is marked with the BN_FLG_CONSTTIME flag as |
| * soon as possible, so that any processing of this BIGNUM might opt for |
| * constant time implementations in the backend. |
| * |
| * Setting the BN_FLG_CONSTTIME flag alone is never enough, we also have |
| * to preallocate the BIGNUM internal buffer to a fixed public size big |
| * enough that operations performed during the processing never trigger |
| * a realloc which would leak the size of the scalar through memory |
| * accesses. |
| * |
| * Fixed Length |
| * ------------ |
| * |
| * The order of the large prime subgroup of the curve is our choice for |
| * a fixed public size, as that is generally the upper bound for |
| * generating a private key in EC cryptosystems and should fit all valid |
| * secret scalars. |
| * |
| * For padding on export we just use the bit length of the order |
| * converted to bytes (rounding up). |
| * |
| * For preallocating the BIGNUM storage we look at the number of "words" |
| * required for the internal representation of the order, and we |
| * preallocate 2 extra "words" in case any of the subsequent processing |
| * might temporarily overflow the order length. |
| */ |
| ecbits = EC_GROUP_order_bits(ecg); |
| if (ecbits <= 0) |
| goto err; |
| |
| sz = (ecbits + 7) / 8; |
| if (!OSSL_PARAM_BLD_push_BN_pad(tmpl, |
| OSSL_PKEY_PARAM_PRIV_KEY, |
| priv_key, sz)) |
| goto err; |
| selection |= OSSL_KEYMGMT_SELECT_PRIVATE_KEY; |
| |
| /* |
| * The ECDH Cofactor Mode is defined only if the EC_KEY actually |
| * contains a private key, so we check for the flag and export it only |
| * in this case. |
| */ |
| ecdh_cofactor_mode = |
| (EC_KEY_get_flags(eckey) & EC_FLAG_COFACTOR_ECDH) ? 1 : 0; |
| |
| /* Export the ECDH_COFACTOR_MODE parameter */ |
| if (!OSSL_PARAM_BLD_push_int(tmpl, |
| OSSL_PKEY_PARAM_USE_COFACTOR_ECDH, |
| ecdh_cofactor_mode)) |
| goto err; |
| selection |= OSSL_KEYMGMT_SELECT_OTHER_PARAMETERS; |
| } |
| |
| params = OSSL_PARAM_BLD_to_param(tmpl); |
| |
| /* We export, the provider imports */ |
| rv = importer(to_keydata, selection, params); |
| |
| err: |
| OSSL_PARAM_BLD_free(tmpl); |
| OSSL_PARAM_free(params); |
| OPENSSL_free(pub_key_buf); |
| OPENSSL_free(gen_buf); |
| BN_CTX_end(bnctx); |
| BN_CTX_free(bnctx); |
| return rv; |
| } |
| |
| static int ec_pkey_import_from(const OSSL_PARAM params[], void *vpctx) |
| { |
| EVP_PKEY_CTX *pctx = vpctx; |
| EVP_PKEY *pkey = EVP_PKEY_CTX_get0_pkey(pctx); |
| EC_KEY *ec = EC_KEY_new_ex(pctx->libctx, pctx->propquery); |
| |
| if (ec == NULL) { |
| ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE); |
| return 0; |
| } |
| |
| if (!ossl_ec_group_fromdata(ec, params) |
| || !ossl_ec_key_otherparams_fromdata(ec, params) |
| || !ossl_ec_key_fromdata(ec, params, 1) |
| || !EVP_PKEY_assign_EC_KEY(pkey, ec)) { |
| EC_KEY_free(ec); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int ec_pkey_copy(EVP_PKEY *to, EVP_PKEY *from) |
| { |
| EC_KEY *eckey = from->pkey.ec; |
| EC_KEY *dupkey = NULL; |
| int ret; |
| |
| if (eckey != NULL) { |
| dupkey = EC_KEY_dup(eckey); |
| if (dupkey == NULL) |
| return 0; |
| } else { |
| /* necessary to properly copy empty SM2 keys */ |
| return EVP_PKEY_set_type(to, from->type); |
| } |
| |
| ret = EVP_PKEY_assign_EC_KEY(to, dupkey); |
| if (!ret) |
| EC_KEY_free(dupkey); |
| return ret; |
| } |
| |
| const EVP_PKEY_ASN1_METHOD ossl_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, |
| |
| NULL, |
| eckey_priv_encode, |
| eckey_priv_print, |
| |
| int_ec_size, |
| ec_bits, |
| ec_security_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, |
| |
| 0, 0, 0, |
| |
| ec_pkey_check, |
| ec_pkey_public_check, |
| ec_pkey_param_check, |
| |
| 0, /* set_priv_key */ |
| 0, /* set_pub_key */ |
| 0, /* get_priv_key */ |
| 0, /* get_pub_key */ |
| |
| ec_pkey_dirty_cnt, |
| ec_pkey_export_to, |
| ec_pkey_import_from, |
| ec_pkey_copy, |
| eckey_priv_decode_ex |
| }; |
| |
| #if !defined(OPENSSL_NO_SM2) |
| const EVP_PKEY_ASN1_METHOD ossl_sm2_asn1_meth = { |
| EVP_PKEY_SM2, |
| EVP_PKEY_EC, |
| ASN1_PKEY_ALIAS |
| }; |
| #endif |
| |
| int EC_KEY_print(BIO *bp, const EC_KEY *x, int off) |
| { |
| int private = EC_KEY_get0_private_key(x) != NULL; |
| |
| return do_EC_KEY_print(bp, x, off, |
| private ? EC_KEY_PRINT_PRIVATE : EC_KEY_PRINT_PUBLIC); |
| } |
| |
| int ECParameters_print(BIO *bp, const EC_KEY *x) |
| { |
| return do_EC_KEY_print(bp, x, 4, EC_KEY_PRINT_PARAM); |
| } |
