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Add sm2 command

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Zhi Guan
2018-12-19 11:51:20 +08:00
parent 4ca17c807c
commit d4917f27bd
2 changed files with 445 additions and 1 deletions
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apps/sm2.c Normal file
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/* ====================================================================
* Copyright (c) 2014 - 2018 The GmSSL 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 GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL 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 GmSSL 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.
* ====================================================================
*/
/*
* Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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_SM2
NON_EMPTY_TRANSLATION_UNIT
#else
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <openssl/bio.h>
# include <openssl/err.h>
# include <openssl/evp.h>
# include <openssl/pem.h>
# include <openssl/sm2.h>
# include <openssl/objects.h>
# include "../crypto/ec/ec_lcl.h"
# include "apps.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, OPT_CONFIG,
OPT_GENKEY, OPT_RAND, OPT_ID, OPT_GENZID
} OPTION_CHOICE;
OPTIONS sm2_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"in", OPT_IN, 's', "Input file"},
{"inform", OPT_INFORM, 'f', "Input format - DER or PEM"},
{"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 'sm2p256v1' elliptic curve parameters"},
{"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
{"pubout", OPT_PUBOUT, '-', "Output public key, not private"},
{"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
{"check", OPT_CHECK, '-', "check key consistency"},
{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"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 "},
{"genkey", OPT_GENKEY, '-', "Generate sm2 key"},
{"rand", OPT_RAND, 's', "Files to use for random number input"},
{"id", OPT_ID, 's', "SM2 key owner's identity"},
{"genzid", OPT_GENZID, '-', "Generate SM2 Z value from public key and identity"},
{"", OPT_CIPHER, '-', "Any supported cipher"},
# ifndef OPENSSL_NO_ENGINE
{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
{"config", OPT_CONFIG, 's', "A config file"},
# endif
{NULL}
};
int sm2_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;
CONF *conf = NULL;
char *configfile = default_config_file;
int genkey = 0, need_rand = 0;
char *inrand = NULL;
int genzid = 0;
char *id = NULL;
prog = opt_init(argc, argv, sm2_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(sm2_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;
case OPT_CONFIG:
configfile = opt_arg();
break;
case OPT_GENKEY:
genkey = need_rand = 1;
break;
case OPT_RAND:
inrand = opt_arg();
need_rand = 1;
break;
case OPT_ID:
id = opt_arg();
break;
case OPT_GENZID:
genzid = 1;
break;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
BIO_printf(bio_err, "Using configuration from %s\n", configfile);
if ((conf = app_load_config(configfile)) == NULL)
goto end;
if (configfile != default_config_file && !app_load_modules(conf))
goto end;
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;
}
if (need_rand) {
app_RAND_load_file(NULL, (inrand != NULL));
if (inrand != NULL)
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
}
if (genkey) {
BIO_printf(bio_err, "generate SM2 key\n");
if (!(eckey = EC_KEY_new_by_curve_name(NID_sm2p256v1))) {
goto end;
}
assert(need_rand);
if (!EC_KEY_generate_key(eckey)) {
BIO_printf(bio_err, "unable to generate key\n");
EC_KEY_free(eckey);
ERR_print_errors(bio_err);
goto end;
}
} else {
BIO_printf(bio_err, "read SM2 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_TEXT) {
unsigned char buf[256] = {0};
unsigned char *key = NULL;
long keylen;
if (BIO_read(in, buf, sizeof(buf) - 1) <= 0) {
ERR_print_errors(bio_err);
OPENSSL_cleanse(buf, sizeof(buf));
goto end;
}
if (!(key = OPENSSL_hexstr2buf((char *)buf, &keylen))) {
ERR_print_errors(bio_err);
OPENSSL_cleanse(buf, sizeof(buf));
goto end;
}
OPENSSL_cleanse(buf, sizeof(buf));
if (keylen != 32) {
BIO_printf(bio_err, "invalid private key in hex format\n");
OPENSSL_cleanse(key, keylen);
goto end;
}
if (!EC_KEY_oct2key(eckey, key, sizeof(key), NULL)) {
ERR_print_errors(bio_err);
OPENSSL_cleanse(key, keylen);
goto end;
}
OPENSSL_cleanse(key, keylen);
} 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;
}
if (!EC_KEY_is_sm2p256v1(eckey)) {
BIO_printf(bio_err, "curve is not sm2p256v1\n");
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) {
if (EC_KEY_is_sm2p256v1(eckey)) {
BIO_printf(bio_err, "SM2 Key valid.\n");
} else {
BIO_printf(bio_err, "Not SM2 Key.\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 SM2 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 (genzid) {
unsigned char z[64];
size_t zlen = sizeof(z);
if (!id) {
id = SM2_DEFAULT_ID;
BIO_printf(bio_err, "use default identity '%s'\n", id);
}
if (!SM2_compute_id_digest(EVP_sm3(), id, strlen(id), z, &zlen, eckey)) {
goto end;
}
BIO_printf(out, "Z = ");
for (i = 0; i < zlen; i++) {
BIO_printf(out, "%02X", z[i]);
}
BIO_printf(out, "\n");
}
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);
NCONF_free(conf);
return (ret);
}
#endif