[thirdparty/openssl.git] / apps / ecparam.c

/*
 * Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright (c) 2002, Oracle and/or its affiliates. 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
 */

#include <string.h>
#include <openssl/opensslconf.h>
#include <openssl/evp.h>
#include <openssl/encoder.h>
#include <openssl/decoder.h>
#include <openssl/core_names.h>
#include <openssl/core_dispatch.h>
#include <openssl/params.h>
#include <openssl/err.h>
#include "apps.h"
#include "progs.h"
#include "ec_common.h"

typedef enum OPTION_choice {
    OPT_COMMON,
    OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT,
    OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME,
    OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_ENGINE, OPT_CHECK_NAMED,
    OPT_R_ENUM, OPT_PROV_ENUM
} OPTION_CHOICE;

const OPTIONS ecparam_options[] = {
    OPT_SECTION("General"),
    {"help", OPT_HELP, '-', "Display this summary"},
    {"list_curves", OPT_LIST_CURVES, '-',
     "Prints a list of all curve 'short names'"},
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif

    {"genkey", OPT_GENKEY, '-', "Generate ec key"},
    {"in", OPT_IN, '<', "Input file  - default stdin"},
    {"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"},
    {"out", OPT_OUT, '>', "Output file - default stdout"},
    {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},

    OPT_SECTION("Output"),
    {"text", OPT_TEXT, '-', "Print the ec parameters in text form"},
    {"noout", OPT_NOOUT, '-', "Do not print the ec parameter"},
    {"param_enc", OPT_PARAM_ENC, 's',
     "Specifies the way the ec parameters are encoded"},

    OPT_SECTION("Parameter"),
    {"check", OPT_CHECK, '-', "Validate the ec parameters"},
    {"check_named", OPT_CHECK_NAMED, '-',
     "Check that named EC curve parameters have not been modified"},
    {"no_seed", OPT_NO_SEED, '-',
     "If 'explicit' parameters are chosen do not use the seed"},
    {"name", OPT_NAME, 's',
     "Use the ec parameters with specified 'short name'"},
    {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},

    OPT_R_OPTIONS,
    OPT_PROV_OPTIONS,
    {NULL}
};

static int list_builtin_curves(BIO *out)
{
    int ret = 0;
    EC_builtin_curve *curves = NULL;
    size_t n, crv_len = EC_get_builtin_curves(NULL, 0);

    curves = app_malloc((int)sizeof(*curves) * crv_len, "list curves");
    if (!EC_get_builtin_curves(curves, crv_len))
        goto end;

    for (n = 0; n < crv_len; n++) {
        const char *comment = curves[n].comment;
        const char *sname = OBJ_nid2sn(curves[n].nid);

        if (comment == NULL)
            comment = "CURVE DESCRIPTION NOT AVAILABLE";
        if (sname == NULL)
            sname = "";

        BIO_printf(out, "  %-10s: ", sname);
        BIO_printf(out, "%s\n", comment);
    }
    ret = 1;
end:
    OPENSSL_free(curves);
    return ret;
}

int ecparam_main(int argc, char **argv)
{
    EVP_PKEY_CTX *gctx_params = NULL, *gctx_key = NULL, *pctx = NULL;
    EVP_PKEY *params_key = NULL, *key = NULL;
    OSSL_ENCODER_CTX *ectx_key = NULL, *ectx_params = NULL;
    OSSL_DECODER_CTX *dctx_params = NULL;
    ENGINE *e = NULL;
    BIO *out = NULL;
    char *curve_name = NULL;
    char *asn1_encoding = NULL;
    char *point_format = NULL;
    char *infile = NULL, *outfile = NULL, *prog;
    OPTION_CHOICE o;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0;
    int ret = 1, private = 0;
    int no_seed = 0, check = 0, check_named = 0, text = 0, genkey = 0;
    int list_curves = 0;

    prog = opt_init(argc, argv, ecparam_options);
    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(ecparam_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUTFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
                goto opthelp;
            break;
        case OPT_OUT:
            outfile = opt_arg();
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_CHECK:
            check = 1;
            break;
        case OPT_CHECK_NAMED:
            check_named = 1;
            break;
        case OPT_LIST_CURVES:
            list_curves = 1;
            break;
        case OPT_NO_SEED:
            no_seed = 1;
            break;
        case OPT_NOOUT:
            noout = 1;
            break;
        case OPT_NAME:
            curve_name = opt_arg();
            break;
        case OPT_CONV_FORM:
            point_format = opt_arg();
            if (!opt_string(point_format, point_format_options))
                goto opthelp;
            break;
        case OPT_PARAM_ENC:
            asn1_encoding = opt_arg();
            if (!opt_string(asn1_encoding, asn1_encoding_options))
                goto opthelp;
            break;
        case OPT_GENKEY:
            genkey = 1;
            break;
        case OPT_R_CASES:
            if (!opt_rand(o))
                goto end;
            break;
        case OPT_PROV_CASES:
            if (!opt_provider(o))
                goto end;
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        }
    }

    /* No extra args. */
    if (!opt_check_rest_arg(NULL))
        goto opthelp;

    if (!app_RAND_load())
        goto end;

    private = genkey ? 1 : 0;

    out = bio_open_owner(outfile, outformat, private);
    if (out == NULL)
        goto end;

    if (list_curves) {
        if (list_builtin_curves(out))
            ret = 0;
        goto end;
    }

    if (curve_name != NULL) {
        OSSL_PARAM params[4];
        OSSL_PARAM *p = params;

        if (strcmp(curve_name, "secp192r1") == 0) {
            BIO_printf(bio_err,
                       "using curve name prime192v1 instead of secp192r1\n");
            curve_name = SN_X9_62_prime192v1;
        } else if (strcmp(curve_name, "secp256r1") == 0) {
            BIO_printf(bio_err,
                       "using curve name prime256v1 instead of secp256r1\n");
            curve_name = SN_X9_62_prime256v1;
        }
        *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
                                                curve_name, 0);
        if (asn1_encoding != NULL)
            *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING,
                                                    asn1_encoding, 0);
        if (point_format != NULL)
            *p++ = OSSL_PARAM_construct_utf8_string(
                       OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
                       point_format, 0);
        *p = OSSL_PARAM_construct_end();

        if (OPENSSL_strcasecmp(curve_name, "SM2") == 0)
            gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "sm2",
                                                     app_get0_propq());
        else
            gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "ec",
                                                     app_get0_propq());
        if (gctx_params == NULL
            || EVP_PKEY_keygen_init(gctx_params) <= 0
            || EVP_PKEY_CTX_set_params(gctx_params, params) <= 0
            || EVP_PKEY_keygen(gctx_params, &params_key) <= 0) {
            BIO_printf(bio_err, "unable to generate key\n");
            goto end;
        }
    } else {
        params_key = load_keyparams(infile, informat, 1, "EC", "EC parameters");
        if (params_key == NULL || !EVP_PKEY_is_a(params_key, "EC"))
            goto end;
        if (point_format
            && !EVP_PKEY_set_utf8_string_param(
                    params_key, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
                    point_format)) {
            BIO_printf(bio_err, "unable to set point conversion format\n");
            goto end;
        }

        if (asn1_encoding != NULL
            && !EVP_PKEY_set_utf8_string_param(
                    params_key, OSSL_PKEY_PARAM_EC_ENCODING, asn1_encoding)) {
            BIO_printf(bio_err, "unable to set asn1 encoding format\n");
            goto end;
        }
    }

    if (no_seed
        && !EVP_PKEY_set_octet_string_param(params_key, OSSL_PKEY_PARAM_EC_SEED,
                                            NULL, 0)) {
        BIO_printf(bio_err, "unable to clear seed\n");
        goto end;
    }

    if (text
        && !EVP_PKEY_print_params(out, params_key, 0, NULL)) {
        BIO_printf(bio_err, "unable to print params\n");
        goto end;
    }

    if (check || check_named) {
        BIO_printf(bio_err, "checking elliptic curve parameters: ");

        if (check_named
            && !EVP_PKEY_set_utf8_string_param(params_key,
                                           OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
                                           OSSL_PKEY_EC_GROUP_CHECK_NAMED)) {
                BIO_printf(bio_err, "unable to set check_type\n");
                goto end;
        }
        pctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key,
                                          app_get0_propq());
        if (pctx == NULL || EVP_PKEY_param_check(pctx) <= 0) {
            BIO_printf(bio_err, "failed\n");
            goto end;
        }
        BIO_printf(bio_err, "ok\n");
    }

    if (outformat == FORMAT_ASN1 && genkey)
        noout = 1;

    if (!noout) {
        ectx_params = OSSL_ENCODER_CTX_new_for_pkey(
                          params_key, OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS,
                          outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL);
        if (!OSSL_ENCODER_to_bio(ectx_params, out)) {
            BIO_printf(bio_err, "unable to write elliptic curve parameters\n");
            goto end;
        }
    }

    if (genkey) {
        /*
         * NOTE: EC keygen does not normally need to pass in the param_key
         * for named curves. This can be achieved using:
         *    gctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL);
         *    EVP_PKEY_keygen_init(gctx);
         *    EVP_PKEY_CTX_set_group_name(gctx, curvename);
         *    EVP_PKEY_keygen(gctx, &key) <= 0)
         */
        gctx_key = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key,
                                              app_get0_propq());
        if (EVP_PKEY_keygen_init(gctx_key) <= 0
            || EVP_PKEY_keygen(gctx_key, &key) <= 0) {
            BIO_printf(bio_err, "unable to generate key\n");
            goto end;
        }
        assert(private);
        ectx_key = OSSL_ENCODER_CTX_new_for_pkey(
                       key, OSSL_KEYMGMT_SELECT_ALL,
                       outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL);
        if (!OSSL_ENCODER_to_bio(ectx_key, out)) {
            BIO_printf(bio_err, "unable to write elliptic "
                       "curve parameters\n");
            goto end;
        }
    }

    ret = 0;
end:
    if (ret != 0)
        ERR_print_errors(bio_err);
    release_engine(e);
    EVP_PKEY_free(params_key);
    EVP_PKEY_free(key);
    EVP_PKEY_CTX_free(pctx);
    EVP_PKEY_CTX_free(gctx_params);
    EVP_PKEY_CTX_free(gctx_key);
    OSSL_DECODER_CTX_free(dctx_params);
    OSSL_ENCODER_CTX_free(ectx_params);
    OSSL_ENCODER_CTX_free(ectx_key);
    BIO_free_all(out);
    return ret;
}
Commit	Line	Data
14a7cfb3	1	/*
fecb3aae	2	* Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved.
aa8f3d76	3	* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
5dbd3efc	4	*
dffa7520	5	* Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7 RS	6	* this file except in compliance with the License. You can obtain a copy
	7	* in the file LICENSE in the source distribution or at
	8	* https://www.openssl.org/source/license.html
5dbd3efc	9	*/
846e33c7	10
5ac632ee	11	#include <string.h>
6e04afb8	12	#include <openssl/opensslconf.h>
5b5eea4b SL	13	#include <openssl/evp.h>
	14	#include <openssl/encoder.h>
	15	#include <openssl/decoder.h>
	16	#include <openssl/core_names.h>
	17	#include <openssl/core_dispatch.h>
	18	#include <openssl/params.h>
	19	#include <openssl/err.h>
1ae56f2f RS	20	#include "apps.h"
1ae56f2f RS	21	#include "progs.h"
5b5eea4b	22	#include "ec_common.h"
0f113f3e	23
7e1b7485	24	typedef enum OPTION_choice {
b0f96018	25	OPT_COMMON,
1696b890	26	OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT,
7e1b7485	27	OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME,
8402cd5f	28	OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_ENGINE, OPT_CHECK_NAMED,
6bd4e3f2	29	OPT_R_ENUM, OPT_PROV_ENUM
7e1b7485 RS	30	} OPTION_CHOICE;
7e1b7485 RS	31
44c83ebd	32	const OPTIONS ecparam_options[] = {
5388f986	33	OPT_SECTION("General"),
7e1b7485	34	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	35	{"list_curves", OPT_LIST_CURVES, '-',
5388f986 RS	36	"Prints a list of all curve 'short names'"},
1ae56f2f	37	#ifndef OPENSSL_NO_ENGINE
5388f986	38	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
1ae56f2f	39	#endif
5388f986 RS	40
5388f986 RS	41	{"genkey", OPT_GENKEY, '-', "Generate ec key"},
7e1b7485	42	{"in", OPT_IN, '<', "Input file - default stdin"},
5388f986	43	{"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"},
7e1b7485	44	{"out", OPT_OUT, '>', "Output file - default stdout"},
5388f986 RS	45	{"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},
	46
	47	OPT_SECTION("Output"),
7e1b7485	48	{"text", OPT_TEXT, '-', "Print the ec parameters in text form"},
5388f986 RS	49	{"noout", OPT_NOOUT, '-', "Do not print the ec parameter"},
	50	{"param_enc", OPT_PARAM_ENC, 's',
	51	"Specifies the way the ec parameters are encoded"},
	52
	53	OPT_SECTION("Parameter"),
7e1b7485	54	{"check", OPT_CHECK, '-', "Validate the ec parameters"},
8402cd5f SL	55	{"check_named", OPT_CHECK_NAMED, '-',
8402cd5f SL	56	"Check that named EC curve parameters have not been modified"},
7e1b7485 RS	57	{"no_seed", OPT_NO_SEED, '-',
7e1b7485 RS	58	"If 'explicit' parameters are chosen do not use the seed"},
7e1b7485 RS	59	{"name", OPT_NAME, 's',
	60	"Use the ec parameters with specified 'short name'"},
	61	{"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
5388f986	62
3ee1eac2	63	OPT_R_OPTIONS,
6bd4e3f2	64	OPT_PROV_OPTIONS,
7e1b7485 RS	65	{NULL}
	66	};
	67
5b5eea4b SL	68	static int list_builtin_curves(BIO *out)
	69	{
	70	int ret = 0;
	71	EC_builtin_curve *curves = NULL;
	72	size_t n, crv_len = EC_get_builtin_curves(NULL, 0);
7e1b7485	73
5b5eea4b SL	74	curves = app_malloc((int)sizeof(curves) crv_len, "list curves");
	75	if (!EC_get_builtin_curves(curves, crv_len))
	76	goto end;
	77
	78	for (n = 0; n < crv_len; n++) {
	79	const char *comment = curves[n].comment;
	80	const char *sname = OBJ_nid2sn(curves[n].nid);
	81
	82	if (comment == NULL)
	83	comment = "CURVE DESCRIPTION NOT AVAILABLE";
	84	if (sname == NULL)
	85	sname = "";
	86
	87	BIO_printf(out, " %-10s: ", sname);
	88	BIO_printf(out, "%s\n", comment);
	89	}
	90	ret = 1;
	91	end:
	92	OPENSSL_free(curves);
	93	return ret;
	94	}
7e1b7485 RS	95
7e1b7485 RS	96	int ecparam_main(int argc, char **argv)
0f113f3e	97	{
5b5eea4b SL	98	EVP_PKEY_CTX gctx_params = NULL, gctx_key = NULL, *pctx = NULL;
	99	EVP_PKEY params_key = NULL, key = NULL;
	100	OSSL_ENCODER_CTX ectx_key = NULL, ectx_params = NULL;
	101	OSSL_DECODER_CTX *dctx_params = NULL;
dd1abd44	102	ENGINE *e = NULL;
57cea5ba	103	BIO *out = NULL;
3ee1eac2	104	char *curve_name = NULL;
5b5eea4b SL	105	char *asn1_encoding = NULL;
5b5eea4b SL	106	char *point_format = NULL;
333b070e	107	char infile = NULL, outfile = NULL, *prog;
7e1b7485	108	OPTION_CHOICE o;
1696b890	109	int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0;
3b061a00	110	int ret = 1, private = 0;
5b5eea4b SL	111	int no_seed = 0, check = 0, check_named = 0, text = 0, genkey = 0;
5b5eea4b SL	112	int list_curves = 0;
7e1b7485 RS	113
	114	prog = opt_init(argc, argv, ecparam_options);
	115	while ((o = opt_next()) != OPT_EOF) {
	116	switch (o) {
	117	case OPT_EOF:
	118	case OPT_ERR:
	119	opthelp:
	120	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	121	goto end;
	122	case OPT_HELP:
	123	opt_help(ecparam_options);
	124	ret = 0;
	125	goto end;
	126	case OPT_INFORM:
	127	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
	128	goto opthelp;
	129	break;
	130	case OPT_IN:
	131	infile = opt_arg();
	132	break;
	133	case OPT_OUTFORM:
	134	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
	135	goto opthelp;
	136	break;
	137	case OPT_OUT:
	138	outfile = opt_arg();
	139	break;
	140	case OPT_TEXT:
0f113f3e	141	text = 1;
7e1b7485	142	break;
7e1b7485	143	case OPT_CHECK:
0f113f3e	144	check = 1;
7e1b7485	145	break;
8402cd5f SL	146	case OPT_CHECK_NAMED:
	147	check_named = 1;
	148	break;
7e1b7485	149	case OPT_LIST_CURVES:
0f113f3e	150	list_curves = 1;
7e1b7485 RS	151	break;
7e1b7485 RS	152	case OPT_NO_SEED:
0f113f3e	153	no_seed = 1;
7e1b7485 RS	154	break;
7e1b7485 RS	155	case OPT_NOOUT:
0f113f3e	156	noout = 1;
7e1b7485 RS	157	break;
	158	case OPT_NAME:
	159	curve_name = opt_arg();
	160	break;
	161	case OPT_CONV_FORM:
5b5eea4b SL	162	point_format = opt_arg();
5b5eea4b SL	163	if (!opt_string(point_format, point_format_options))
7e1b7485	164	goto opthelp;
7e1b7485 RS	165	break;
7e1b7485 RS	166	case OPT_PARAM_ENC:
5b5eea4b SL	167	asn1_encoding = opt_arg();
5b5eea4b SL	168	if (!opt_string(asn1_encoding, asn1_encoding_options))
7e1b7485	169	goto opthelp;
7e1b7485 RS	170	break;
7e1b7485 RS	171	case OPT_GENKEY:
3ee1eac2	172	genkey = 1;
7e1b7485	173	break;
3ee1eac2 RS	174	case OPT_R_CASES:
	175	if (!opt_rand(o))
	176	goto end;
7e1b7485	177	break;
6bd4e3f2 P	178	case OPT_PROV_CASES:
	179	if (!opt_provider(o))
	180	goto end;
	181	break;
7e1b7485	182	case OPT_ENGINE:
dd1abd44	183	e = setup_engine(opt_arg(), 0);
0f113f3e MC	184	break;
0f113f3e MC	185	}
0f113f3e	186	}
021410ea RS	187
021410ea RS	188	/* No extra args. */
d9f07357	189	if (!opt_check_rest_arg(NULL))
03358517 KR	190	goto opthelp;
03358517 KR	191
3ad60309 DDO	192	if (!app_RAND_load())
	193	goto end;
	194
3b061a00	195	private = genkey ? 1 : 0;
0f113f3e	196
bdd58d98	197	out = bio_open_owner(outfile, outformat, private);
7e1b7485	198	if (out == NULL)
0f113f3e	199	goto end;
0f113f3e	200
0f113f3e	201	if (list_curves) {
5b5eea4b SL	202	if (list_builtin_curves(out))
5b5eea4b SL	203	ret = 0;
0f113f3e MC	204	goto end;
	205	}
	206
	207	if (curve_name != NULL) {
5b5eea4b SL	208	OSSL_PARAM params[4];
5b5eea4b SL	209	OSSL_PARAM *p = params;
0f113f3e	210
86885c28	211	if (strcmp(curve_name, "secp192r1") == 0) {
5b5eea4b SL	212	BIO_printf(bio_err,
	213	"using curve name prime192v1 instead of secp192r1\n");
	214	curve_name = SN_X9_62_prime192v1;
86885c28	215	} else if (strcmp(curve_name, "secp256r1") == 0) {
5b5eea4b SL	216	BIO_printf(bio_err,
	217	"using curve name prime256v1 instead of secp256r1\n");
	218	curve_name = SN_X9_62_prime256v1;
2234212c	219	}
5b5eea4b SL	220	*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_GROUP_NAME,
	221	curve_name, 0);
	222	if (asn1_encoding != NULL)
	223	*p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_EC_ENCODING,
	224	asn1_encoding, 0);
	225	if (point_format != NULL)
	226	*p++ = OSSL_PARAM_construct_utf8_string(
	227	OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
	228	point_format, 0);
	229	*p = OSSL_PARAM_construct_end();
02241111	230
fba140c7	231	if (OPENSSL_strcasecmp(curve_name, "SM2") == 0)
2b8f687d CL	232	gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "sm2",
2b8f687d CL	233	app_get0_propq());
02241111	234	else
2b8f687d CL	235	gctx_params = EVP_PKEY_CTX_new_from_name(app_get0_libctx(), "ec",
2b8f687d CL	236	app_get0_propq());
5b5eea4b SL	237	if (gctx_params == NULL
	238	\|\| EVP_PKEY_keygen_init(gctx_params) <= 0
	239	\|\| EVP_PKEY_CTX_set_params(gctx_params, params) <= 0
	240	\|\| EVP_PKEY_keygen(gctx_params, &params_key) <= 0) {
	241	BIO_printf(bio_err, "unable to generate key\n");
	242	goto end;
	243	}
	244	} else {
d382e796	245	params_key = load_keyparams(infile, informat, 1, "EC", "EC parameters");
28e19042	246	if (params_key == NULL \|\| !EVP_PKEY_is_a(params_key, "EC"))
5b5eea4b SL	247	goto end;
	248	if (point_format
	249	&& !EVP_PKEY_set_utf8_string_param(
	250	params_key, OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT,
	251	point_format)) {
	252	BIO_printf(bio_err, "unable to set point conversion format\n");
0f113f3e MC	253	goto end;
	254	}
	255
5b5eea4b SL	256	if (asn1_encoding != NULL
	257	&& !EVP_PKEY_set_utf8_string_param(
	258	params_key, OSSL_PKEY_PARAM_EC_ENCODING, asn1_encoding)) {
	259	BIO_printf(bio_err, "unable to set asn1 encoding format\n");
0f113f3e MC	260	goto end;
0f113f3e MC	261	}
2234212c	262	}
5b5eea4b SL	263
	264	if (no_seed
	265	&& !EVP_PKEY_set_octet_string_param(params_key, OSSL_PKEY_PARAM_EC_SEED,
	266	NULL, 0)) {
	267	BIO_printf(bio_err, "unable to clear seed\n");
0f113f3e MC	268	goto end;
	269	}
	270
5b5eea4b SL	271	if (text
	272	&& !EVP_PKEY_print_params(out, params_key, 0, NULL)) {
	273	BIO_printf(bio_err, "unable to print params\n");
	274	goto end;
0f113f3e MC	275	}
0f113f3e MC	276
5b5eea4b SL	277	if (check \|\| check_named) {
5b5eea4b SL	278	BIO_printf(bio_err, "checking elliptic curve parameters: ");
0f113f3e	279
5b5eea4b SL	280	if (check_named
	281	&& !EVP_PKEY_set_utf8_string_param(params_key,
	282	OSSL_PKEY_PARAM_EC_GROUP_CHECK_TYPE,
	283	OSSL_PKEY_EC_GROUP_CHECK_NAMED)) {
	284	BIO_printf(bio_err, "unable to set check_type\n");
	285	goto end;
8402cd5f	286	}
2b8f687d CL	287	pctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key,
2b8f687d CL	288	app_get0_propq());
e85bef98	289	if (pctx == NULL \|\| EVP_PKEY_param_check(pctx) <= 0) {
0f113f3e	290	BIO_printf(bio_err, "failed\n");
99dcd880 PW	291	goto end;
	292	}
	293	BIO_printf(bio_err, "ok\n");
0f113f3e MC	294	}
0f113f3e MC	295
4bdc25b0 BE	296	if (outformat == FORMAT_ASN1 && genkey)
	297	noout = 1;
	298
0f113f3e	299	if (!noout) {
fe75766c	300	ectx_params = OSSL_ENCODER_CTX_new_for_pkey(
5b5eea4b SL	301	params_key, OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS,
	302	outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL);
	303	if (!OSSL_ENCODER_to_bio(ectx_params, out)) {
	304	BIO_printf(bio_err, "unable to write elliptic curve parameters\n");
0f113f3e MC	305	goto end;
	306	}
	307	}
	308
0f113f3e	309	if (genkey) {
5b5eea4b SL	310	/*
	311	* NOTE: EC keygen does not normally need to pass in the param_key
	312	* for named curves. This can be achieved using:
	313	* gctx = EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL);
	314	* EVP_PKEY_keygen_init(gctx);
	315	* EVP_PKEY_CTX_set_group_name(gctx, curvename);
	316	* EVP_PKEY_keygen(gctx, &key) <= 0)
	317	*/
2b8f687d CL	318	gctx_key = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(), params_key,
2b8f687d CL	319	app_get0_propq());
5b5eea4b SL	320	if (EVP_PKEY_keygen_init(gctx_key) <= 0
5b5eea4b SL	321	\|\| EVP_PKEY_keygen(gctx_key, &key) <= 0) {
f6de4eb7	322	BIO_printf(bio_err, "unable to generate key\n");
0f113f3e MC	323	goto end;
0f113f3e MC	324	}
3b061a00	325	assert(private);
fe75766c	326	ectx_key = OSSL_ENCODER_CTX_new_for_pkey(
5b5eea4b SL	327	key, OSSL_KEYMGMT_SELECT_ALL,
	328	outformat == FORMAT_ASN1 ? "DER" : "PEM", NULL, NULL);
	329	if (!OSSL_ENCODER_to_bio(ectx_key, out)) {
	330	BIO_printf(bio_err, "unable to write elliptic "
	331	"curve parameters\n");
	332	goto end;
	333	}
0f113f3e MC	334	}
0f113f3e MC	335
0f113f3e	336	ret = 0;
5b5eea4b SL	337	end:
	338	if (ret != 0)
	339	ERR_print_errors(bio_err);
dd1abd44	340	release_engine(e);
5b5eea4b SL	341	EVP_PKEY_free(params_key);
	342	EVP_PKEY_free(key);
	343	EVP_PKEY_CTX_free(pctx);
	344	EVP_PKEY_CTX_free(gctx_params);
	345	EVP_PKEY_CTX_free(gctx_key);
	346	OSSL_DECODER_CTX_free(dctx_params);
	347	OSSL_ENCODER_CTX_free(ectx_params);
	348	OSSL_ENCODER_CTX_free(ectx_key);
ca3a82c3	349	BIO_free_all(out);
26a7d938	350	return ret;
5dbd3efc	351	}