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

/*
 * Copyright 2002-2018 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
 */

#include <openssl/opensslconf.h>
#ifdef OPENSSL_NO_EC
NON_EMPTY_TRANSLATION_UNIT
#else

# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include "apps.h"
# include "progs.h"
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/evp.h>
# include <openssl/pem.h>

static OPT_PAIR conv_forms[] = {
    {"compressed", POINT_CONVERSION_COMPRESSED},
    {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
    {"hybrid", POINT_CONVERSION_HYBRID},
    {NULL}
};

static OPT_PAIR param_enc[] = {
    {"named_curve", OPENSSL_EC_NAMED_CURVE},
    {"explicit", 0},
    {NULL}
};

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
    OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
    OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
    OPT_NO_PUBLIC, OPT_CHECK
} OPTION_CHOICE;

const OPTIONS ec_options[] = {
    OPT_SECTION("General"),
    {"help", OPT_HELP, '-', "Display this summary"},
# ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
# endif

    OPT_SECTION("Input"),
    {"in", OPT_IN, 's', "Input file"},
    {"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
    {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
    {"check", OPT_CHECK, '-', "check key consistency"},
    {"", OPT_CIPHER, '-', "Any supported cipher"},
    {"param_enc", OPT_PARAM_ENC, 's',
     "Specifies the way the ec parameters are encoded"},
    {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},

    OPT_SECTION("Output"),
    {"out", OPT_OUT, '>', "Output file"},
    {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
    {"noout", OPT_NOOUT, '-', "Don't print key out"},
    {"text", OPT_TEXT, '-', "Print the key"},
    {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
    {"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
    {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
    {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
    {NULL}
};

int ec_main(int argc, char **argv)
{
    BIO *in = NULL, *out = NULL;
    ENGINE *e = NULL;
    EC_KEY *eckey = NULL;
    const EC_GROUP *group;
    const EVP_CIPHER *enc = NULL;
    point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
    char *infile = NULL, *outfile = NULL, *prog;
    char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
    OPTION_CHOICE o;
    int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
    int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
    int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
    int no_public = 0, check = 0;

    prog = opt_init(argc, argv, ec_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(ec_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_ANY, &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_NOOUT:
            noout = 1;
            break;
        case OPT_TEXT:
            text = 1;
            break;
        case OPT_PARAM_OUT:
            param_out = 1;
            break;
        case OPT_PUBIN:
            pubin = 1;
            break;
        case OPT_PUBOUT:
            pubout = 1;
            break;
        case OPT_PASSIN:
            passinarg = opt_arg();
            break;
        case OPT_PASSOUT:
            passoutarg = opt_arg();
            break;
        case OPT_ENGINE:
            e = setup_engine(opt_arg(), 0);
            break;
        case OPT_CIPHER:
            if (!opt_cipher(opt_unknown(), &enc))
                goto opthelp;
            break;
        case OPT_CONV_FORM:
            if (!opt_pair(opt_arg(), conv_forms, &i))
                goto opthelp;
            new_form = 1;
            form = i;
            break;
        case OPT_PARAM_ENC:
            if (!opt_pair(opt_arg(), param_enc, &i))
                goto opthelp;
            new_asn1_flag = 1;
            asn1_flag = i;
            break;
        case OPT_NO_PUBLIC:
            no_public = 1;
            break;
        case OPT_CHECK:
            check = 1;
            break;
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    private = param_out || pubin || pubout ? 0 : 1;
    if (text && !pubin)
        private = 1;

    if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
        BIO_printf(bio_err, "Error getting passwords\n");
        goto end;
    }

    if (informat != FORMAT_ENGINE) {
        in = bio_open_default(infile, 'r', informat);
        if (in == NULL)
            goto end;
    }

    BIO_printf(bio_err, "read EC key\n");
    if (informat == FORMAT_ASN1) {
        if (pubin)
            eckey = d2i_EC_PUBKEY_bio(in, NULL);
        else
            eckey = d2i_ECPrivateKey_bio(in, NULL);
    } else if (informat == FORMAT_ENGINE) {
        EVP_PKEY *pkey;
        if (pubin)
            pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
        else
            pkey = load_key(infile, informat, 1, passin, e, "Private Key");
        if (pkey != NULL) {
            eckey = EVP_PKEY_get1_EC_KEY(pkey);
            EVP_PKEY_free(pkey);
        }
    } else {
        if (pubin)
            eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
        else
            eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
    }
    if (eckey == NULL) {
        BIO_printf(bio_err, "unable to load Key\n");
        ERR_print_errors(bio_err);
        goto end;
    }

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

    group = EC_KEY_get0_group(eckey);

    if (new_form)
        EC_KEY_set_conv_form(eckey, form);

    if (new_asn1_flag)
        EC_KEY_set_asn1_flag(eckey, asn1_flag);

    if (no_public)
        EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);

    if (text) {
        assert(pubin || private);
        if (!EC_KEY_print(out, eckey, 0)) {
            perror(outfile);
            ERR_print_errors(bio_err);
            goto end;
        }
    }

    if (check) {
        if (EC_KEY_check_key(eckey) == 1) {
            BIO_printf(bio_err, "EC Key valid.\n");
        } else {
            BIO_printf(bio_err, "EC Key Invalid!\n");
            ERR_print_errors(bio_err);
        }
    }

    if (noout) {
        ret = 0;
        goto end;
    }

    BIO_printf(bio_err, "writing EC key\n");
    if (outformat == FORMAT_ASN1) {
        if (param_out) {
            i = i2d_ECPKParameters_bio(out, group);
        } else if (pubin || pubout) {
            i = i2d_EC_PUBKEY_bio(out, eckey);
        } else {
            assert(private);
            i = i2d_ECPrivateKey_bio(out, eckey);
        }
    } else {
        if (param_out) {
            i = PEM_write_bio_ECPKParameters(out, group);
        } else if (pubin || pubout) {
            i = PEM_write_bio_EC_PUBKEY(out, eckey);
        } else {
            assert(private);
            i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
                                           NULL, 0, NULL, passout);
        }
    }

    if (!i) {
        BIO_printf(bio_err, "unable to write private key\n");
        ERR_print_errors(bio_err);
    } else {
        ret = 0;
    }
 end:
    BIO_free(in);
    BIO_free_all(out);
    EC_KEY_free(eckey);
    release_engine(e);
    OPENSSL_free(passin);
    OPENSSL_free(passout);
    return ret;
}
#endif
Commit	Line	Data
d4a8f90c	1	/*
6738bf14	2	* Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved.
4d94ae00	3	*
dffa7520	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7 RS	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
4d94ae00	8	*/
4d94ae00	9
6e04afb8	10	#include <openssl/opensslconf.h>
effaf4de RS	11	#ifdef OPENSSL_NO_EC
	12	NON_EMPTY_TRANSLATION_UNIT
	13	#else
	14
0f113f3e MC	15	# include <stdio.h>
	16	# include <stdlib.h>
	17	# include <string.h>
	18	# include "apps.h"
dab2cd68	19	# include "progs.h"
0f113f3e MC	20	# include <openssl/bio.h>
	21	# include <openssl/err.h>
	22	# include <openssl/evp.h>
	23	# include <openssl/pem.h>
4d94ae00	24
7e1b7485 RS	25	static OPT_PAIR conv_forms[] = {
	26	{"compressed", POINT_CONVERSION_COMPRESSED},
	27	{"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
	28	{"hybrid", POINT_CONVERSION_HYBRID},
	29	{NULL}
	30	};
4d94ae00	31
7e1b7485 RS	32	static OPT_PAIR param_enc[] = {
	33	{"named_curve", OPENSSL_EC_NAMED_CURVE},
	34	{"explicit", 0},
	35	{NULL}
	36	};
	37
	38	typedef enum OPTION_choice {
	39	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	40	OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
	41	OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
16754806	42	OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
7565cbc4	43	OPT_NO_PUBLIC, OPT_CHECK
7e1b7485	44	} OPTION_CHOICE;
4d94ae00	45
44c83ebd	46	const OPTIONS ec_options[] = {
5388f986	47	OPT_SECTION("General"),
7e1b7485	48	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	49	# ifndef OPENSSL_NO_ENGINE
	50	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
	51	# endif
	52
	53	OPT_SECTION("Input"),
d18ba3cc DSH	54	{"in", OPT_IN, 's', "Input file"},
d18ba3cc DSH	55	{"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
5388f986 RS	56	{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
	57	{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
	58	{"check", OPT_CHECK, '-', "check key consistency"},
	59	{"", OPT_CIPHER, '-', "Any supported cipher"},
	60	{"param_enc", OPT_PARAM_ENC, 's',
	61	"Specifies the way the ec parameters are encoded"},
	62	{"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
	63
	64	OPT_SECTION("Output"),
7e1b7485 RS	65	{"out", OPT_OUT, '>', "Output file"},
7e1b7485 RS	66	{"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
7e1b7485 RS	67	{"noout", OPT_NOOUT, '-', "Don't print key out"},
	68	{"text", OPT_TEXT, '-', "Print the key"},
	69	{"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
16e1b281	70	{"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
16754806	71	{"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
7e1b7485	72	{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
7e1b7485 RS	73	{NULL}
7e1b7485 RS	74	};
4d94ae00	75
7e1b7485	76	int ec_main(int argc, char **argv)
4d94ae00	77	{
7e1b7485	78	BIO in = NULL, out = NULL;
396ba1ca	79	ENGINE *e = NULL;
0f113f3e MC	80	EC_KEY *eckey = NULL;
0f113f3e MC	81	const EC_GROUP *group;
0f113f3e	82	const EVP_CIPHER *enc = NULL;
0f113f3e	83	point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
333b070e RS	84	char infile = NULL, outfile = NULL, *prog;
333b070e RS	85	char passin = NULL, passout = NULL, passinarg = NULL, passoutarg = NULL;
7e1b7485 RS	86	OPTION_CHOICE o;
	87	int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
	88	int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
3b061a00	89	int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
7565cbc4	90	int no_public = 0, check = 0;
4d94ae00	91
7e1b7485 RS	92	prog = opt_init(argc, argv, ec_options);
	93	while ((o = opt_next()) != OPT_EOF) {
	94	switch (o) {
	95	case OPT_EOF:
	96	case OPT_ERR:
	97	opthelp:
	98	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	99	goto end;
	100	case OPT_HELP:
	101	opt_help(ec_options);
	102	ret = 0;
	103	goto end;
	104	case OPT_INFORM:
d18ba3cc	105	if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
7e1b7485 RS	106	goto opthelp;
	107	break;
	108	case OPT_IN:
	109	infile = opt_arg();
	110	break;
	111	case OPT_OUTFORM:
	112	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
	113	goto opthelp;
	114	break;
	115	case OPT_OUT:
	116	outfile = opt_arg();
	117	break;
	118	case OPT_NOOUT:
0f113f3e	119	noout = 1;
7e1b7485 RS	120	break;
7e1b7485 RS	121	case OPT_TEXT:
0f113f3e	122	text = 1;
7e1b7485 RS	123	break;
7e1b7485 RS	124	case OPT_PARAM_OUT:
0f113f3e	125	param_out = 1;
7e1b7485 RS	126	break;
7e1b7485 RS	127	case OPT_PUBIN:
0f113f3e	128	pubin = 1;
7e1b7485 RS	129	break;
7e1b7485 RS	130	case OPT_PUBOUT:
0f113f3e	131	pubout = 1;
7e1b7485 RS	132	break;
	133	case OPT_PASSIN:
	134	passinarg = opt_arg();
	135	break;
	136	case OPT_PASSOUT:
	137	passoutarg = opt_arg();
	138	break;
	139	case OPT_ENGINE:
d18ba3cc	140	e = setup_engine(opt_arg(), 0);
7e1b7485 RS	141	break;
	142	case OPT_CIPHER:
	143	if (!opt_cipher(opt_unknown(), &enc))
	144	goto opthelp;
cc630cdb	145	break;
7e1b7485 RS	146	case OPT_CONV_FORM:
	147	if (!opt_pair(opt_arg(), conv_forms, &i))
	148	goto opthelp;
	149	new_form = 1;
	150	form = i;
	151	break;
	152	case OPT_PARAM_ENC:
	153	if (!opt_pair(opt_arg(), param_enc, &i))
	154	goto opthelp;
	155	new_asn1_flag = 1;
	156	asn1_flag = i;
0f113f3e	157	break;
16754806 DSH	158	case OPT_NO_PUBLIC:
	159	no_public = 1;
	160	break;
7565cbc4 DSH	161	case OPT_CHECK:
	162	check = 1;
	163	break;
0f113f3e	164	}
0f113f3e	165	}
7e1b7485	166	argc = opt_num_rest();
03358517 KR	167	if (argc != 0)
	168	goto opthelp;
	169
3b061a00	170	private = param_out \|\| pubin \|\| pubout ? 0 : 1;
7eff6aa0	171	if (text && !pubin)
3b061a00	172	private = 1;
4d94ae00	173
7e1b7485	174	if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
0f113f3e MC	175	BIO_printf(bio_err, "Error getting passwords\n");
	176	goto end;
	177	}
4d94ae00	178
d18ba3cc DSH	179	if (informat != FORMAT_ENGINE) {
	180	in = bio_open_default(infile, 'r', informat);
	181	if (in == NULL)
	182	goto end;
	183	}
4d94ae00	184
0f113f3e MC	185	BIO_printf(bio_err, "read EC key\n");
	186	if (informat == FORMAT_ASN1) {
	187	if (pubin)
	188	eckey = d2i_EC_PUBKEY_bio(in, NULL);
	189	else
	190	eckey = d2i_ECPrivateKey_bio(in, NULL);
d18ba3cc DSH	191	} else if (informat == FORMAT_ENGINE) {
	192	EVP_PKEY *pkey;
	193	if (pubin)
28b86f31	194	pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key");
d18ba3cc DSH	195	else
	196	pkey = load_key(infile, informat, 1, passin, e, "Private Key");
	197	if (pkey != NULL) {
	198	eckey = EVP_PKEY_get1_EC_KEY(pkey);
	199	EVP_PKEY_free(pkey);
	200	}
7e1b7485	201	} else {
0f113f3e MC	202	if (pubin)
	203	eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
	204	else
	205	eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
0f113f3e MC	206	}
	207	if (eckey == NULL) {
	208	BIO_printf(bio_err, "unable to load Key\n");
	209	ERR_print_errors(bio_err);
	210	goto end;
	211	}
4d94ae00	212
bdd58d98	213	out = bio_open_owner(outfile, outformat, private);
7e1b7485 RS	214	if (out == NULL)
7e1b7485 RS	215	goto end;
4d94ae00	216
0f113f3e	217	group = EC_KEY_get0_group(eckey);
9dd84053	218
0f113f3e MC	219	if (new_form)
0f113f3e MC	220	EC_KEY_set_conv_form(eckey, form);
4d94ae00	221
0f113f3e MC	222	if (new_asn1_flag)
0f113f3e MC	223	EC_KEY_set_asn1_flag(eckey, asn1_flag);
eefa6e4e	224
16754806 DSH	225	if (no_public)
	226	EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
	227
3b061a00	228	if (text) {
7eff6aa0	229	assert(pubin \|\| private);
0f113f3e MC	230	if (!EC_KEY_print(out, eckey, 0)) {
	231	perror(outfile);
	232	ERR_print_errors(bio_err);
	233	goto end;
	234	}
3b061a00	235	}
4d94ae00	236
7565cbc4 DSH	237	if (check) {
	238	if (EC_KEY_check_key(eckey) == 1) {
	239	BIO_printf(bio_err, "EC Key valid.\n");
	240	} else {
	241	BIO_printf(bio_err, "EC Key Invalid!\n");
	242	ERR_print_errors(bio_err);
	243	}
	244	}
	245
0f113f3e MC	246	if (noout) {
	247	ret = 0;
	248	goto end;
	249	}
eefa6e4e	250
0f113f3e MC	251	BIO_printf(bio_err, "writing EC key\n");
0f113f3e MC	252	if (outformat == FORMAT_ASN1) {
2234212c	253	if (param_out) {
0f113f3e	254	i = i2d_ECPKParameters_bio(out, group);
2234212c	255	} else if (pubin \|\| pubout) {
0f113f3e	256	i = i2d_EC_PUBKEY_bio(out, eckey);
2234212c	257	} else {
3b061a00	258	assert(private);
0f113f3e	259	i = i2d_ECPrivateKey_bio(out, eckey);
3b061a00	260	}
7e1b7485	261	} else {
2234212c	262	if (param_out) {
0f113f3e	263	i = PEM_write_bio_ECPKParameters(out, group);
2234212c	264	} else if (pubin \|\| pubout) {
0f113f3e	265	i = PEM_write_bio_EC_PUBKEY(out, eckey);
2234212c	266	} else {
3b061a00	267	assert(private);
0f113f3e MC	268	i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
0f113f3e MC	269	NULL, 0, NULL, passout);
3b061a00	270	}
0f113f3e	271	}
eefa6e4e	272
0f113f3e MC	273	if (!i) {
	274	BIO_printf(bio_err, "unable to write private key\n");
	275	ERR_print_errors(bio_err);
2234212c	276	} else {
0f113f3e	277	ret = 0;
2234212c	278	}
0f113f3e	279	end:
ca3a82c3 RS	280	BIO_free(in);
ca3a82c3 RS	281	BIO_free_all(out);
8fdc3734	282	EC_KEY_free(eckey);
dd1abd44	283	release_engine(e);
b548a1f1 RS	284	OPENSSL_free(passin);
b548a1f1 RS	285	OPENSSL_free(passout);
26a7d938	286	return ret;
4d94ae00 BM	287	}
4d94ae00 BM	288	#endif