178 lines
5.2 KiB
C
178 lines
5.2 KiB
C
/* ed448_verify.c
|
|
*
|
|
* Copyright (C) 2006-2020 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfSSL. (formerly known as CyaSSL)
|
|
*
|
|
* wolfSSL is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wolfSSL is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
/* Example to demonstrate Ed448 Verify */
|
|
/*
|
|
./configure --enable-ed448 && make && sudo make install
|
|
gcc -lwolfssl -o ed448_verify ed448_verify.c
|
|
*/
|
|
|
|
#ifndef WOLFSSL_USER_SETTINGS
|
|
#include <wolfssl/options.h>
|
|
#endif
|
|
#include <wolfssl/wolfcrypt/settings.h>
|
|
#include <wolfssl/wolfcrypt/sha256.h>
|
|
#include <wolfssl/wolfcrypt/ed448.h>
|
|
#include <wolfssl/wolfcrypt/integer.h>
|
|
#include <wolfssl/wolfcrypt/error-crypt.h>
|
|
#include <wolfssl/wolfcrypt/logging.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
|
|
#if defined(HAVE_ED448) && defined(HAVE_ED448_VERIFY)
|
|
|
|
/* Test Vectors */
|
|
static const uint8_t kMsg[] = {
|
|
0x69, 0xbc, 0x9f, 0xce, 0x68, 0x17, 0xc2, 0x10,
|
|
0xea, 0xfc, 0x10, 0x65, 0x67, 0x52, 0xed, 0x78,
|
|
0x6e, 0xb8, 0x83, 0x9c, 0x9a, 0xb4, 0x56, 0x0d,
|
|
0xc1, 0x0d, 0x1f, 0x78, 0x6e, 0x75, 0xd7, 0xbe,
|
|
0x92, 0x6b, 0x12, 0xf6, 0x76, 0x60, 0x8e, 0xb1,
|
|
0xf4, 0x19, 0x0c, 0x81, 0xe7, 0x54, 0x5e, 0xbc,
|
|
0xe0, 0xae, 0xc2, 0x7d, 0x1b, 0xc4, 0x6e, 0xec,
|
|
0xb1, 0x99, 0x6c, 0xbf, 0x0e, 0x38, 0xa8, 0x01,
|
|
0xa6, 0x9a, 0x48, 0x12, 0xe4, 0xc9, 0x3b, 0xf0,
|
|
0x63, 0x46, 0x15, 0xb4, 0x61, 0xa8, 0x1a, 0x60,
|
|
0x71, 0x87, 0x98, 0xd7, 0x6f, 0x98, 0x7b, 0x2d,
|
|
0xb9, 0x19, 0x1b, 0x21, 0x9c, 0x70, 0x58, 0xe8,
|
|
0x0d, 0x0f, 0xe9, 0x2d, 0x9a, 0x9a, 0xf1, 0x55,
|
|
0xa0, 0x4c, 0xd3, 0x07, 0xbd, 0x97, 0x48, 0xec,
|
|
0x88, 0x0a, 0xaf, 0xb3, 0x80, 0x78, 0xa4, 0x59,
|
|
0x43, 0x57, 0xd3, 0xa7, 0x01, 0x66, 0x0e, 0xfc
|
|
};
|
|
static const uint8_t kPubKey[] = {
|
|
/* y */
|
|
0x5d, 0xf2, 0x8f, 0x9a, 0xbe, 0x91, 0x32, 0x1c,
|
|
0x79, 0xf3, 0x13, 0xd8, 0xf4, 0xd6, 0x55, 0x74,
|
|
0x8a, 0x04, 0xe4, 0xe3, 0xaa, 0x21, 0xf8, 0x6b,
|
|
0xb1, 0xdb, 0x26, 0xa7, 0x74, 0x33, 0x87, 0x35,
|
|
0x85, 0xbc, 0x80, 0xe6, 0x92, 0xee, 0xba, 0x24,
|
|
0x5d, 0x6b, 0x4e, 0x37, 0x76, 0xbc, 0xdb, 0xfe,
|
|
0xcc, 0xe9, 0x8b, 0xc5, 0xc8, 0x88, 0xd5, 0xcb,
|
|
0x80
|
|
};
|
|
static const uint8_t kSigRS[] = {
|
|
/* R */
|
|
0x7D, 0xC5, 0xC9, 0x10, 0xD3, 0x37, 0x4E, 0x3B,
|
|
0x99, 0x7C, 0x37, 0x6A, 0x38, 0x63, 0x65, 0x7F,
|
|
0x75, 0xFD, 0xF4, 0x2B, 0x89, 0x27, 0xBA, 0xEC,
|
|
0x65, 0x0F, 0x1A, 0xE2, 0xAB, 0xB9, 0xF0, 0xA6,
|
|
0xEC, 0xE6, 0xC8, 0xED, 0x54, 0xDD, 0x9F, 0x22,
|
|
0x00, 0x0C, 0x84, 0x33, 0x07, 0xA3, 0x58, 0x8E,
|
|
0x22, 0x37, 0x4E, 0xD8, 0x78, 0x51, 0x7E, 0x44,
|
|
0x80,
|
|
/* S */
|
|
0x97, 0x1A, 0xF1, 0x9E, 0x07, 0x87, 0x9C, 0x1D,
|
|
0xA0, 0x91, 0x3A, 0xDC, 0xAD, 0x3E, 0xEA, 0x70,
|
|
0xE9, 0x05, 0xBC, 0x39, 0xE2, 0xB7, 0x0B, 0x72,
|
|
0x71, 0x20, 0x35, 0x4F, 0x6F, 0x02, 0x48, 0xA2,
|
|
0xAD, 0xE1, 0x50, 0x64, 0xE0, 0x56, 0x6C, 0x74,
|
|
0xB2, 0xF0, 0x8A, 0x57, 0xF5, 0xE9, 0x89, 0xD9,
|
|
0x0D, 0x44, 0x39, 0x69, 0x89, 0xEC, 0xF7, 0x1C,
|
|
0x00
|
|
};
|
|
|
|
|
|
/* perform verify of signature and message using public key */
|
|
/* key is public y */
|
|
/* sig is r + s */
|
|
int crypto_ed448_verify(const uint8_t *key, uint32_t keySz,
|
|
const uint8_t *sig, uint32_t sigSz)
|
|
{
|
|
int ret, verify_res = 0;
|
|
ed448_key ed448;
|
|
|
|
/* validate arguments */
|
|
if (key == NULL || sig == NULL) {
|
|
return BAD_FUNC_ARG;
|
|
}
|
|
|
|
/* Setup the Ed448 key */
|
|
ret = wc_ed448_init(&ed448);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
/* Import public key x/y */
|
|
ret = wc_ed448_import_public(
|
|
(byte*)key, keySz, /* public "y" Coordinate */
|
|
&ed448 /* key context */
|
|
);
|
|
|
|
/* Verify Ed448 Signature */
|
|
if (ret == 0) {
|
|
ret = wc_ed448_verify_msg(
|
|
sig, sigSz, /* r/s encoded */
|
|
kMsg, sizeof(kMsg), /* message */
|
|
&verify_res, /* verification result 1=success */
|
|
&ed448, /* key context */
|
|
NULL, 0 /* contex of signature */
|
|
);
|
|
}
|
|
|
|
/* check verify result */
|
|
if (ret == 0 && verify_res == 0) {
|
|
ret = SIG_VERIFY_E;
|
|
}
|
|
|
|
wc_ed448_free(&ed448);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main()
|
|
{
|
|
int ret;
|
|
|
|
#ifdef DEBUG_WOLFSSL
|
|
wolfSSL_Debugging_ON();
|
|
#endif
|
|
|
|
printf("Running Verify Test Vector\n");
|
|
|
|
ret = crypto_ed448_verify(
|
|
kPubKey, sizeof(kPubKey), /* public key point x/y */
|
|
kSigRS, sizeof(kSigRS) /* signature r/s */
|
|
);
|
|
|
|
if (ret == 0) {
|
|
printf("Success\n");
|
|
}
|
|
else {
|
|
printf("Failure %d: %s\n", ret, wc_GetErrorString(ret));
|
|
ret = 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#else
|
|
|
|
int main()
|
|
{
|
|
printf("wolfSSL requires Ed448\n");
|
|
return 1;
|
|
}
|
|
|
|
#endif /* HAVE_ED448 && HAVE_ED448_VERIFY */
|
|
|