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/* $OpenBSD: ec_asn1_test.c,v 1.1 2021/12/04 05:15:09 jsing Exp $ */
/*
* Copyright (c) 2017, 2021 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <string.h>
#include <openssl/bio.h>
#include <openssl/ec.h>
#include <openssl/objects.h>
const uint8_t ec_secp256r1_pkparameters_named_curve[] = {
0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03,
0x01, 0x07,
};
const uint8_t ec_secp256r1_pkparameters_parameters[] = {
0x30, 0x81, 0xf7, 0x02, 0x01, 0x01, 0x30, 0x2c,
0x06, 0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x01,
0x01, 0x02, 0x21, 0x00, 0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0x30, 0x5b, 0x04, 0x20,
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc,
0x04, 0x20, 0x5a, 0xc6, 0x35, 0xd8, 0xaa, 0x3a,
0x93, 0xe7, 0xb3, 0xeb, 0xbd, 0x55, 0x76, 0x98,
0x86, 0xbc, 0x65, 0x1d, 0x06, 0xb0, 0xcc, 0x53,
0xb0, 0xf6, 0x3b, 0xce, 0x3c, 0x3e, 0x27, 0xd2,
0x60, 0x4b, 0x03, 0x15, 0x00, 0xc4, 0x9d, 0x36,
0x08, 0x86, 0xe7, 0x04, 0x93, 0x6a, 0x66, 0x78,
0xe1, 0x13, 0x9d, 0x26, 0xb7, 0x81, 0x9f, 0x7e,
0x90, 0x04, 0x41, 0x04, 0x6b, 0x17, 0xd1, 0xf2,
0xe1, 0x2c, 0x42, 0x47, 0xf8, 0xbc, 0xe6, 0xe5,
0x63, 0xa4, 0x40, 0xf2, 0x77, 0x03, 0x7d, 0x81,
0x2d, 0xeb, 0x33, 0xa0, 0xf4, 0xa1, 0x39, 0x45,
0xd8, 0x98, 0xc2, 0x96, 0x4f, 0xe3, 0x42, 0xe2,
0xfe, 0x1a, 0x7f, 0x9b, 0x8e, 0xe7, 0xeb, 0x4a,
0x7c, 0x0f, 0x9e, 0x16, 0x2b, 0xce, 0x33, 0x57,
0x6b, 0x31, 0x5e, 0xce, 0xcb, 0xb6, 0x40, 0x68,
0x37, 0xbf, 0x51, 0xf5, 0x02, 0x21, 0x00, 0xff,
0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xbc,
0xe6, 0xfa, 0xad, 0xa7, 0x17, 0x9e, 0x84, 0xf3,
0xb9, 0xca, 0xc2, 0xfc, 0x63, 0x25, 0x51, 0x02,
0x01, 0x01,
};
static void
hexdump(const unsigned char *buf, size_t len)
{
size_t i;
for (i = 1; i <= len; i++)
fprintf(stderr, " 0x%02hhx,%s", buf[i - 1], i % 8 ? "" : "\n");
fprintf(stderr, "\n");
}
static int
compare_data(const char *label, const unsigned char *d1, size_t d1_len,
const unsigned char *d2, size_t d2_len)
{
if (d1_len != d2_len) {
fprintf(stderr, "FAIL: got %s with length %zu, want %zu\n",
label, d1_len, d2_len);
return -1;
}
if (memcmp(d1, d2, d1_len) != 0) {
fprintf(stderr, "FAIL: %sdiffer\n", label);
fprintf(stderr, "got:\n");
hexdump(d1, d1_len);
fprintf(stderr, "want:\n");
hexdump(d2, d2_len);
return -1;
}
return 0;
}
static int
ec_group_pkparameters_test(const char *label, int asn1_flag,
const uint8_t *test_data, size_t test_data_len)
{
EC_GROUP *group_a = NULL, *group_b = NULL;
unsigned char *out = NULL, *data = NULL;
const unsigned char *p;
BIO *bio_mem = NULL;
int failure = 1;
int len;
/*
* Test i2d_ECPKParameters/d2i_ECPKParameters.
*/
if ((group_a = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1)) == NULL)
errx(1, "failed to create EC_GROUP");
EC_GROUP_set_asn1_flag(group_a, asn1_flag);
if ((len = i2d_ECPKParameters(group_a, &out)) < 0) {
fprintf(stderr, "FAIL: i2d_ECPKParameters failed\n");
goto done;
}
if (compare_data(label, out, len, test_data, test_data_len) == -1)
goto done;
p = out;
if ((group_b = d2i_ECPKParameters(NULL, &p, len)) == NULL) {
fprintf(stderr, "FAIL: d2i_ECPKParameters failed\n");
goto done;
}
if (EC_GROUP_cmp(group_a, group_b, NULL) != 0) {
fprintf(stderr, "FAIL: EC_GROUPs do not match!\n");
goto done;
}
p = out;
if ((group_a = d2i_ECPKParameters(&group_a, &p, len)) == NULL) {
fprintf(stderr, "FAIL: d2i_ECPKParameters failed\n");
goto done;
}
if (EC_GROUP_cmp(group_a, group_b, NULL) != 0) {
fprintf(stderr, "FAIL: EC_GROUPs do not match!\n");
goto done;
}
/*
* Test i2d_ECPKParameters_bio/d2i_ECPKParameters_bio.
*/
if ((bio_mem = BIO_new(BIO_s_mem())) == NULL)
errx(1, "BIO_new failed for BIO_s_mem");
if ((len = i2d_ECPKParameters_bio(bio_mem, group_a)) < 0) {
fprintf(stderr, "FAIL: i2d_ECPKParameters_bio failed\n");
goto done;
}
len = BIO_get_mem_data(bio_mem, &data);
if (compare_data(label, out, len, test_data, test_data_len) == -1)
goto done;
EC_GROUP_free(group_b);
if ((group_b = d2i_ECPKParameters_bio(bio_mem, NULL)) == NULL) {
fprintf(stderr, "FAIL: d2i_ECPKParameters_bio failed\n");
goto done;
}
if (EC_GROUP_cmp(group_a, group_b, NULL) != 0) {
fprintf(stderr, "FAIL: EC_GROUPs do not match!\n");
goto done;
}
failure = 0;
done:
BIO_free_all(bio_mem);
EC_GROUP_free(group_a);
EC_GROUP_free(group_b);
free(out);
return (failure);
}
static int
ec_group_pkparameters_named_curve_test(void)
{
return ec_group_pkparameters_test("ECPKPARAMETERS named curve",
OPENSSL_EC_NAMED_CURVE, ec_secp256r1_pkparameters_named_curve,
sizeof(ec_secp256r1_pkparameters_named_curve));
}
static int
ec_group_pkparameters_parameters_test(void)
{
return ec_group_pkparameters_test("ECPKPARAMETERS parameters",
OPENSSL_EC_EXPLICIT_CURVE, ec_secp256r1_pkparameters_parameters,
sizeof(ec_secp256r1_pkparameters_parameters));
}
int
main(int argc, char **argv)
{
int failed = 0;
failed |= ec_group_pkparameters_named_curve_test();
failed |= ec_group_pkparameters_parameters_test();
return (failed);
}
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