475 lines
16 KiB
C
475 lines
16 KiB
C
/* $OpenBSD: ed25519test.c,v 1.10 2022/12/01 13:55:22 tb Exp $ */
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/*
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* Copyright (c) 2019, 2022 Theo Buehler <tb@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/curve25519.h>
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struct testvector {
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const uint8_t sec_key[ED25519_PRIVATE_KEY_LENGTH];
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const uint8_t pub_key[ED25519_PUBLIC_KEY_LENGTH];
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const uint8_t signature[ED25519_SIGNATURE_LENGTH];
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const uint8_t message[1024];
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size_t message_len;
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};
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/*
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* Test vectors from https://tools.ietf.org/html/rfc8032#section-7.1.
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*/
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static const struct testvector testvectors[] = {
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{
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.sec_key = {
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0x9d, 0x61, 0xb1, 0x9d, 0xef, 0xfd, 0x5a, 0x60,
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0xba, 0x84, 0x4a, 0xf4, 0x92, 0xec, 0x2c, 0xc4,
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0x44, 0x49, 0xc5, 0x69, 0x7b, 0x32, 0x69, 0x19,
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0x70, 0x3b, 0xac, 0x03, 0x1c, 0xae, 0x7f, 0x60,
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},
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.pub_key = {
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0xd7, 0x5a, 0x98, 0x01, 0x82, 0xb1, 0x0a, 0xb7,
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0xd5, 0x4b, 0xfe, 0xd3, 0xc9, 0x64, 0x07, 0x3a,
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0x0e, 0xe1, 0x72, 0xf3, 0xda, 0xa6, 0x23, 0x25,
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0xaf, 0x02, 0x1a, 0x68, 0xf7, 0x07, 0x51, 0x1a,
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},
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.message = {
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0x0, /* Windows has stupid compilers... */
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},
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.message_len = 0,
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.signature = {
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0xe5, 0x56, 0x43, 0x00, 0xc3, 0x60, 0xac, 0x72,
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0x90, 0x86, 0xe2, 0xcc, 0x80, 0x6e, 0x82, 0x8a,
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0x84, 0x87, 0x7f, 0x1e, 0xb8, 0xe5, 0xd9, 0x74,
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0xd8, 0x73, 0xe0, 0x65, 0x22, 0x49, 0x01, 0x55,
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0x5f, 0xb8, 0x82, 0x15, 0x90, 0xa3, 0x3b, 0xac,
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0xc6, 0x1e, 0x39, 0x70, 0x1c, 0xf9, 0xb4, 0x6b,
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0xd2, 0x5b, 0xf5, 0xf0, 0x59, 0x5b, 0xbe, 0x24,
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0x65, 0x51, 0x41, 0x43, 0x8e, 0x7a, 0x10, 0x0b,
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},
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},
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{
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.sec_key = {
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0x4c, 0xcd, 0x08, 0x9b, 0x28, 0xff, 0x96, 0xda,
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0x9d, 0xb6, 0xc3, 0x46, 0xec, 0x11, 0x4e, 0x0f,
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0x5b, 0x8a, 0x31, 0x9f, 0x35, 0xab, 0xa6, 0x24,
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0xda, 0x8c, 0xf6, 0xed, 0x4f, 0xb8, 0xa6, 0xfb,
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},
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.pub_key = {
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0x3d, 0x40, 0x17, 0xc3, 0xe8, 0x43, 0x89, 0x5a,
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0x92, 0xb7, 0x0a, 0xa7, 0x4d, 0x1b, 0x7e, 0xbc,
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0x9c, 0x98, 0x2c, 0xcf, 0x2e, 0xc4, 0x96, 0x8c,
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0xc0, 0xcd, 0x55, 0xf1, 0x2a, 0xf4, 0x66, 0x0c,
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},
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.message = {
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0x72,
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},
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.message_len = 1,
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.signature = {
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0x92, 0xa0, 0x09, 0xa9, 0xf0, 0xd4, 0xca, 0xb8,
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0x72, 0x0e, 0x82, 0x0b, 0x5f, 0x64, 0x25, 0x40,
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0xa2, 0xb2, 0x7b, 0x54, 0x16, 0x50, 0x3f, 0x8f,
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0xb3, 0x76, 0x22, 0x23, 0xeb, 0xdb, 0x69, 0xda,
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0x08, 0x5a, 0xc1, 0xe4, 0x3e, 0x15, 0x99, 0x6e,
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0x45, 0x8f, 0x36, 0x13, 0xd0, 0xf1, 0x1d, 0x8c,
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0x38, 0x7b, 0x2e, 0xae, 0xb4, 0x30, 0x2a, 0xee,
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0xb0, 0x0d, 0x29, 0x16, 0x12, 0xbb, 0x0c, 0x00,
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},
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},
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{
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.sec_key = {
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0xc5, 0xaa, 0x8d, 0xf4, 0x3f, 0x9f, 0x83, 0x7b,
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0xed, 0xb7, 0x44, 0x2f, 0x31, 0xdc, 0xb7, 0xb1,
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0x66, 0xd3, 0x85, 0x35, 0x07, 0x6f, 0x09, 0x4b,
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0x85, 0xce, 0x3a, 0x2e, 0x0b, 0x44, 0x58, 0xf7,
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},
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.pub_key = {
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0xfc, 0x51, 0xcd, 0x8e, 0x62, 0x18, 0xa1, 0xa3,
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0x8d, 0xa4, 0x7e, 0xd0, 0x02, 0x30, 0xf0, 0x58,
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0x08, 0x16, 0xed, 0x13, 0xba, 0x33, 0x03, 0xac,
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0x5d, 0xeb, 0x91, 0x15, 0x48, 0x90, 0x80, 0x25,
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},
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.message = {
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0xaf, 0x82,
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},
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.message_len = 2,
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.signature = {
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0x62, 0x91, 0xd6, 0x57, 0xde, 0xec, 0x24, 0x02,
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0x48, 0x27, 0xe6, 0x9c, 0x3a, 0xbe, 0x01, 0xa3,
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0x0c, 0xe5, 0x48, 0xa2, 0x84, 0x74, 0x3a, 0x44,
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0x5e, 0x36, 0x80, 0xd7, 0xdb, 0x5a, 0xc3, 0xac,
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0x18, 0xff, 0x9b, 0x53, 0x8d, 0x16, 0xf2, 0x90,
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0xae, 0x67, 0xf7, 0x60, 0x98, 0x4d, 0xc6, 0x59,
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0x4a, 0x7c, 0x15, 0xe9, 0x71, 0x6e, 0xd2, 0x8d,
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0xc0, 0x27, 0xbe, 0xce, 0xea, 0x1e, 0xc4, 0x0a,
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},
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},
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{
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.sec_key = {
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0xf5, 0xe5, 0x76, 0x7c, 0xf1, 0x53, 0x31, 0x95,
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0x17, 0x63, 0x0f, 0x22, 0x68, 0x76, 0xb8, 0x6c,
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0x81, 0x60, 0xcc, 0x58, 0x3b, 0xc0, 0x13, 0x74,
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0x4c, 0x6b, 0xf2, 0x55, 0xf5, 0xcc, 0x0e, 0xe5,
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},
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.pub_key = {
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0x27, 0x81, 0x17, 0xfc, 0x14, 0x4c, 0x72, 0x34,
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0x0f, 0x67, 0xd0, 0xf2, 0x31, 0x6e, 0x83, 0x86,
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0xce, 0xff, 0xbf, 0x2b, 0x24, 0x28, 0xc9, 0xc5,
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0x1f, 0xef, 0x7c, 0x59, 0x7f, 0x1d, 0x42, 0x6e,
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},
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.message = {
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0x08, 0xb8, 0xb2, 0xb7, 0x33, 0x42, 0x42, 0x43,
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0x76, 0x0f, 0xe4, 0x26, 0xa4, 0xb5, 0x49, 0x08,
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0x63, 0x21, 0x10, 0xa6, 0x6c, 0x2f, 0x65, 0x91,
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0xea, 0xbd, 0x33, 0x45, 0xe3, 0xe4, 0xeb, 0x98,
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0xfa, 0x6e, 0x26, 0x4b, 0xf0, 0x9e, 0xfe, 0x12,
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0xee, 0x50, 0xf8, 0xf5, 0x4e, 0x9f, 0x77, 0xb1,
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0xe3, 0x55, 0xf6, 0xc5, 0x05, 0x44, 0xe2, 0x3f,
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0xb1, 0x43, 0x3d, 0xdf, 0x73, 0xbe, 0x84, 0xd8,
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0x79, 0xde, 0x7c, 0x00, 0x46, 0xdc, 0x49, 0x96,
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0xd9, 0xe7, 0x73, 0xf4, 0xbc, 0x9e, 0xfe, 0x57,
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0x38, 0x82, 0x9a, 0xdb, 0x26, 0xc8, 0x1b, 0x37,
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0xc9, 0x3a, 0x1b, 0x27, 0x0b, 0x20, 0x32, 0x9d,
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0x65, 0x86, 0x75, 0xfc, 0x6e, 0xa5, 0x34, 0xe0,
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0x81, 0x0a, 0x44, 0x32, 0x82, 0x6b, 0xf5, 0x8c,
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0x94, 0x1e, 0xfb, 0x65, 0xd5, 0x7a, 0x33, 0x8b,
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0xbd, 0x2e, 0x26, 0x64, 0x0f, 0x89, 0xff, 0xbc,
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0x1a, 0x85, 0x8e, 0xfc, 0xb8, 0x55, 0x0e, 0xe3,
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0xa5, 0xe1, 0x99, 0x8b, 0xd1, 0x77, 0xe9, 0x3a,
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0x73, 0x63, 0xc3, 0x44, 0xfe, 0x6b, 0x19, 0x9e,
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0xe5, 0xd0, 0x2e, 0x82, 0xd5, 0x22, 0xc4, 0xfe,
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0xba, 0x15, 0x45, 0x2f, 0x80, 0x28, 0x8a, 0x82,
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0x1a, 0x57, 0x91, 0x16, 0xec, 0x6d, 0xad, 0x2b,
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0x3b, 0x31, 0x0d, 0xa9, 0x03, 0x40, 0x1a, 0xa6,
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0x21, 0x00, 0xab, 0x5d, 0x1a, 0x36, 0x55, 0x3e,
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0x06, 0x20, 0x3b, 0x33, 0x89, 0x0c, 0xc9, 0xb8,
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0x32, 0xf7, 0x9e, 0xf8, 0x05, 0x60, 0xcc, 0xb9,
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0xa3, 0x9c, 0xe7, 0x67, 0x96, 0x7e, 0xd6, 0x28,
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0xc6, 0xad, 0x57, 0x3c, 0xb1, 0x16, 0xdb, 0xef,
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0xef, 0xd7, 0x54, 0x99, 0xda, 0x96, 0xbd, 0x68,
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0xa8, 0xa9, 0x7b, 0x92, 0x8a, 0x8b, 0xbc, 0x10,
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0x3b, 0x66, 0x21, 0xfc, 0xde, 0x2b, 0xec, 0xa1,
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0x23, 0x1d, 0x20, 0x6b, 0xe6, 0xcd, 0x9e, 0xc7,
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0xaf, 0xf6, 0xf6, 0xc9, 0x4f, 0xcd, 0x72, 0x04,
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0xed, 0x34, 0x55, 0xc6, 0x8c, 0x83, 0xf4, 0xa4,
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0x1d, 0xa4, 0xaf, 0x2b, 0x74, 0xef, 0x5c, 0x53,
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0xf1, 0xd8, 0xac, 0x70, 0xbd, 0xcb, 0x7e, 0xd1,
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0x85, 0xce, 0x81, 0xbd, 0x84, 0x35, 0x9d, 0x44,
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0x25, 0x4d, 0x95, 0x62, 0x9e, 0x98, 0x55, 0xa9,
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0x4a, 0x7c, 0x19, 0x58, 0xd1, 0xf8, 0xad, 0xa5,
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0xd0, 0x53, 0x2e, 0xd8, 0xa5, 0xaa, 0x3f, 0xb2,
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0xd1, 0x7b, 0xa7, 0x0e, 0xb6, 0x24, 0x8e, 0x59,
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0x4e, 0x1a, 0x22, 0x97, 0xac, 0xbb, 0xb3, 0x9d,
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0x50, 0x2f, 0x1a, 0x8c, 0x6e, 0xb6, 0xf1, 0xce,
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0x22, 0xb3, 0xde, 0x1a, 0x1f, 0x40, 0xcc, 0x24,
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0x55, 0x41, 0x19, 0xa8, 0x31, 0xa9, 0xaa, 0xd6,
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0x07, 0x9c, 0xad, 0x88, 0x42, 0x5d, 0xe6, 0xbd,
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0xe1, 0xa9, 0x18, 0x7e, 0xbb, 0x60, 0x92, 0xcf,
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0x67, 0xbf, 0x2b, 0x13, 0xfd, 0x65, 0xf2, 0x70,
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0x88, 0xd7, 0x8b, 0x7e, 0x88, 0x3c, 0x87, 0x59,
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0xd2, 0xc4, 0xf5, 0xc6, 0x5a, 0xdb, 0x75, 0x53,
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0x87, 0x8a, 0xd5, 0x75, 0xf9, 0xfa, 0xd8, 0x78,
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0xe8, 0x0a, 0x0c, 0x9b, 0xa6, 0x3b, 0xcb, 0xcc,
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0x27, 0x32, 0xe6, 0x94, 0x85, 0xbb, 0xc9, 0xc9,
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0x0b, 0xfb, 0xd6, 0x24, 0x81, 0xd9, 0x08, 0x9b,
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0xec, 0xcf, 0x80, 0xcf, 0xe2, 0xdf, 0x16, 0xa2,
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0xcf, 0x65, 0xbd, 0x92, 0xdd, 0x59, 0x7b, 0x07,
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0x07, 0xe0, 0x91, 0x7a, 0xf4, 0x8b, 0xbb, 0x75,
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0xfe, 0xd4, 0x13, 0xd2, 0x38, 0xf5, 0x55, 0x5a,
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0x7a, 0x56, 0x9d, 0x80, 0xc3, 0x41, 0x4a, 0x8d,
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0x08, 0x59, 0xdc, 0x65, 0xa4, 0x61, 0x28, 0xba,
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0xb2, 0x7a, 0xf8, 0x7a, 0x71, 0x31, 0x4f, 0x31,
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0x8c, 0x78, 0x2b, 0x23, 0xeb, 0xfe, 0x80, 0x8b,
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0x82, 0xb0, 0xce, 0x26, 0x40, 0x1d, 0x2e, 0x22,
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0xf0, 0x4d, 0x83, 0xd1, 0x25, 0x5d, 0xc5, 0x1a,
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0xdd, 0xd3, 0xb7, 0x5a, 0x2b, 0x1a, 0xe0, 0x78,
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0x45, 0x04, 0xdf, 0x54, 0x3a, 0xf8, 0x96, 0x9b,
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0xe3, 0xea, 0x70, 0x82, 0xff, 0x7f, 0xc9, 0x88,
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0x8c, 0x14, 0x4d, 0xa2, 0xaf, 0x58, 0x42, 0x9e,
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0xc9, 0x60, 0x31, 0xdb, 0xca, 0xd3, 0xda, 0xd9,
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0xaf, 0x0d, 0xcb, 0xaa, 0xaf, 0x26, 0x8c, 0xb8,
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0xfc, 0xff, 0xea, 0xd9, 0x4f, 0x3c, 0x7c, 0xa4,
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0x95, 0xe0, 0x56, 0xa9, 0xb4, 0x7a, 0xcd, 0xb7,
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0x51, 0xfb, 0x73, 0xe6, 0x66, 0xc6, 0xc6, 0x55,
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0xad, 0xe8, 0x29, 0x72, 0x97, 0xd0, 0x7a, 0xd1,
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0xba, 0x5e, 0x43, 0xf1, 0xbc, 0xa3, 0x23, 0x01,
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0x65, 0x13, 0x39, 0xe2, 0x29, 0x04, 0xcc, 0x8c,
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0x42, 0xf5, 0x8c, 0x30, 0xc0, 0x4a, 0xaf, 0xdb,
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0x03, 0x8d, 0xda, 0x08, 0x47, 0xdd, 0x98, 0x8d,
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0xcd, 0xa6, 0xf3, 0xbf, 0xd1, 0x5c, 0x4b, 0x4c,
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0x45, 0x25, 0x00, 0x4a, 0xa0, 0x6e, 0xef, 0xf8,
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0xca, 0x61, 0x78, 0x3a, 0xac, 0xec, 0x57, 0xfb,
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0x3d, 0x1f, 0x92, 0xb0, 0xfe, 0x2f, 0xd1, 0xa8,
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0x5f, 0x67, 0x24, 0x51, 0x7b, 0x65, 0xe6, 0x14,
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0xad, 0x68, 0x08, 0xd6, 0xf6, 0xee, 0x34, 0xdf,
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0xf7, 0x31, 0x0f, 0xdc, 0x82, 0xae, 0xbf, 0xd9,
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0x04, 0xb0, 0x1e, 0x1d, 0xc5, 0x4b, 0x29, 0x27,
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0x09, 0x4b, 0x2d, 0xb6, 0x8d, 0x6f, 0x90, 0x3b,
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0x68, 0x40, 0x1a, 0xde, 0xbf, 0x5a, 0x7e, 0x08,
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0xd7, 0x8f, 0xf4, 0xef, 0x5d, 0x63, 0x65, 0x3a,
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0x65, 0x04, 0x0c, 0xf9, 0xbf, 0xd4, 0xac, 0xa7,
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0x98, 0x4a, 0x74, 0xd3, 0x71, 0x45, 0x98, 0x67,
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0x80, 0xfc, 0x0b, 0x16, 0xac, 0x45, 0x16, 0x49,
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0xde, 0x61, 0x88, 0xa7, 0xdb, 0xdf, 0x19, 0x1f,
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0x64, 0xb5, 0xfc, 0x5e, 0x2a, 0xb4, 0x7b, 0x57,
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0xf7, 0xf7, 0x27, 0x6c, 0xd4, 0x19, 0xc1, 0x7a,
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0x3c, 0xa8, 0xe1, 0xb9, 0x39, 0xae, 0x49, 0xe4,
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0x88, 0xac, 0xba, 0x6b, 0x96, 0x56, 0x10, 0xb5,
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0x48, 0x01, 0x09, 0xc8, 0xb1, 0x7b, 0x80, 0xe1,
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0xb7, 0xb7, 0x50, 0xdf, 0xc7, 0x59, 0x8d, 0x5d,
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0x50, 0x11, 0xfd, 0x2d, 0xcc, 0x56, 0x00, 0xa3,
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0x2e, 0xf5, 0xb5, 0x2a, 0x1e, 0xcc, 0x82, 0x0e,
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0x30, 0x8a, 0xa3, 0x42, 0x72, 0x1a, 0xac, 0x09,
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0x43, 0xbf, 0x66, 0x86, 0xb6, 0x4b, 0x25, 0x79,
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0x37, 0x65, 0x04, 0xcc, 0xc4, 0x93, 0xd9, 0x7e,
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0x6a, 0xed, 0x3f, 0xb0, 0xf9, 0xcd, 0x71, 0xa4,
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0x3d, 0xd4, 0x97, 0xf0, 0x1f, 0x17, 0xc0, 0xe2,
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0xcb, 0x37, 0x97, 0xaa, 0x2a, 0x2f, 0x25, 0x66,
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0x56, 0x16, 0x8e, 0x6c, 0x49, 0x6a, 0xfc, 0x5f,
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0xb9, 0x32, 0x46, 0xf6, 0xb1, 0x11, 0x63, 0x98,
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0xa3, 0x46, 0xf1, 0xa6, 0x41, 0xf3, 0xb0, 0x41,
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0xe9, 0x89, 0xf7, 0x91, 0x4f, 0x90, 0xcc, 0x2c,
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0x7f, 0xff, 0x35, 0x78, 0x76, 0xe5, 0x06, 0xb5,
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0x0d, 0x33, 0x4b, 0xa7, 0x7c, 0x22, 0x5b, 0xc3,
|
|
0x07, 0xba, 0x53, 0x71, 0x52, 0xf3, 0xf1, 0x61,
|
|
0x0e, 0x4e, 0xaf, 0xe5, 0x95, 0xf6, 0xd9, 0xd9,
|
|
0x0d, 0x11, 0xfa, 0xa9, 0x33, 0xa1, 0x5e, 0xf1,
|
|
0x36, 0x95, 0x46, 0x86, 0x8a, 0x7f, 0x3a, 0x45,
|
|
0xa9, 0x67, 0x68, 0xd4, 0x0f, 0xd9, 0xd0, 0x34,
|
|
0x12, 0xc0, 0x91, 0xc6, 0x31, 0x5c, 0xf4, 0xfd,
|
|
0xe7, 0xcb, 0x68, 0x60, 0x69, 0x37, 0x38, 0x0d,
|
|
0xb2, 0xea, 0xaa, 0x70, 0x7b, 0x4c, 0x41, 0x85,
|
|
0xc3, 0x2e, 0xdd, 0xcd, 0xd3, 0x06, 0x70, 0x5e,
|
|
0x4d, 0xc1, 0xff, 0xc8, 0x72, 0xee, 0xee, 0x47,
|
|
0x5a, 0x64, 0xdf, 0xac, 0x86, 0xab, 0xa4, 0x1c,
|
|
0x06, 0x18, 0x98, 0x3f, 0x87, 0x41, 0xc5, 0xef,
|
|
0x68, 0xd3, 0xa1, 0x01, 0xe8, 0xa3, 0xb8, 0xca,
|
|
0xc6, 0x0c, 0x90, 0x5c, 0x15, 0xfc, 0x91, 0x08,
|
|
0x40, 0xb9, 0x4c, 0x00, 0xa0, 0xb9, 0xd0,
|
|
},
|
|
.message_len = 1023,
|
|
.signature = {
|
|
0x0a, 0xab, 0x4c, 0x90, 0x05, 0x01, 0xb3, 0xe2,
|
|
0x4d, 0x7c, 0xdf, 0x46, 0x63, 0x32, 0x6a, 0x3a,
|
|
0x87, 0xdf, 0x5e, 0x48, 0x43, 0xb2, 0xcb, 0xdb,
|
|
0x67, 0xcb, 0xf6, 0xe4, 0x60, 0xfe, 0xc3, 0x50,
|
|
0xaa, 0x53, 0x71, 0xb1, 0x50, 0x8f, 0x9f, 0x45,
|
|
0x28, 0xec, 0xea, 0x23, 0xc4, 0x36, 0xd9, 0x4b,
|
|
0x5e, 0x8f, 0xcd, 0x4f, 0x68, 0x1e, 0x30, 0xa6,
|
|
0xac, 0x00, 0xa9, 0x70, 0x4a, 0x18, 0x8a, 0x03,
|
|
},
|
|
},
|
|
{
|
|
.sec_key = {
|
|
0x83, 0x3f, 0xe6, 0x24, 0x09, 0x23, 0x7b, 0x9d,
|
|
0x62, 0xec, 0x77, 0x58, 0x75, 0x20, 0x91, 0x1e,
|
|
0x9a, 0x75, 0x9c, 0xec, 0x1d, 0x19, 0x75, 0x5b,
|
|
0x7d, 0xa9, 0x01, 0xb9, 0x6d, 0xca, 0x3d, 0x42,
|
|
},
|
|
.pub_key = {
|
|
0xec, 0x17, 0x2b, 0x93, 0xad, 0x5e, 0x56, 0x3b,
|
|
0xf4, 0x93, 0x2c, 0x70, 0xe1, 0x24, 0x50, 0x34,
|
|
0xc3, 0x54, 0x67, 0xef, 0x2e, 0xfd, 0x4d, 0x64,
|
|
0xeb, 0xf8, 0x19, 0x68, 0x34, 0x67, 0xe2, 0xbf,
|
|
},
|
|
.message = {
|
|
0xdd, 0xaf, 0x35, 0xa1, 0x93, 0x61, 0x7a, 0xba,
|
|
0xcc, 0x41, 0x73, 0x49, 0xae, 0x20, 0x41, 0x31,
|
|
0x12, 0xe6, 0xfa, 0x4e, 0x89, 0xa9, 0x7e, 0xa2,
|
|
0x0a, 0x9e, 0xee, 0xe6, 0x4b, 0x55, 0xd3, 0x9a,
|
|
0x21, 0x92, 0x99, 0x2a, 0x27, 0x4f, 0xc1, 0xa8,
|
|
0x36, 0xba, 0x3c, 0x23, 0xa3, 0xfe, 0xeb, 0xbd,
|
|
0x45, 0x4d, 0x44, 0x23, 0x64, 0x3c, 0xe8, 0x0e,
|
|
0x2a, 0x9a, 0xc9, 0x4f, 0xa5, 0x4c, 0xa4, 0x9f,
|
|
},
|
|
.message_len = 64,
|
|
.signature = {
|
|
0xdc, 0x2a, 0x44, 0x59, 0xe7, 0x36, 0x96, 0x33,
|
|
0xa5, 0x2b, 0x1b, 0xf2, 0x77, 0x83, 0x9a, 0x00,
|
|
0x20, 0x10, 0x09, 0xa3, 0xef, 0xbf, 0x3e, 0xcb,
|
|
0x69, 0xbe, 0xa2, 0x18, 0x6c, 0x26, 0xb5, 0x89,
|
|
0x09, 0x35, 0x1f, 0xc9, 0xac, 0x90, 0xb3, 0xec,
|
|
0xfd, 0xfb, 0xc7, 0xc6, 0x64, 0x31, 0xe0, 0x30,
|
|
0x3d, 0xca, 0x17, 0x9c, 0x13, 0x8a, 0xc1, 0x7a,
|
|
0xd9, 0xbe, 0xf1, 0x17, 0x73, 0x31, 0xa7, 0x04,
|
|
},
|
|
},
|
|
};
|
|
|
|
const size_t num_testvectors = sizeof(testvectors) / sizeof(testvectors[0]);
|
|
|
|
static int
|
|
test_ED25519_verify(void)
|
|
{
|
|
size_t i;
|
|
int failed = 0;
|
|
|
|
for (i = 0; i < num_testvectors; i++) {
|
|
const struct testvector *tc = &testvectors[i];
|
|
|
|
if (!ED25519_verify(tc->message, tc->message_len, tc->signature,
|
|
tc->pub_key)) {
|
|
warnx("failed verification in test case %zu", i);
|
|
failed = 1;
|
|
}
|
|
}
|
|
|
|
return failed;
|
|
}
|
|
|
|
static int
|
|
test_ED25519_sign(void)
|
|
{
|
|
size_t i;
|
|
int failed = 0;
|
|
|
|
for (i = 0; i < num_testvectors; i++) {
|
|
const struct testvector *tc = &testvectors[i];
|
|
uint8_t signature[64];
|
|
|
|
if (!ED25519_sign(signature, tc->message, tc->message_len,
|
|
tc->pub_key, tc->sec_key)) {
|
|
warnx("failed signature in test case %zu", i);
|
|
failed = 1;
|
|
}
|
|
|
|
if (memcmp(tc->signature, signature, sizeof signature) != 0) {
|
|
warnx("signature mismatch in test case %zu", i);
|
|
failed = 1;
|
|
}
|
|
}
|
|
|
|
return failed;
|
|
}
|
|
|
|
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");
|
|
|
|
if (len % 8)
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void
|
|
dump_info(const uint8_t *message, size_t message_len, const uint8_t *public_key,
|
|
const uint8_t *private_key, const uint8_t *signature)
|
|
{
|
|
|
|
fprintf(stderr, "message:\n");
|
|
hexdump(message, message_len);
|
|
|
|
fprintf(stderr, "public key:\n");
|
|
hexdump(public_key, ED25519_PUBLIC_KEY_LENGTH);
|
|
fprintf(stderr, "private key:\n");
|
|
hexdump(private_key, ED25519_PRIVATE_KEY_LENGTH);
|
|
|
|
if (signature != NULL) {
|
|
fprintf(stderr, "signature:\n");
|
|
hexdump(signature, ED25519_SIGNATURE_LENGTH);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Little-endian representation of the order of edwards25519,
|
|
* see https://www.rfc-editor.org/rfc/rfc7748#section-4.1
|
|
*/
|
|
static const uint8_t order[] = {
|
|
0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,
|
|
0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
|
|
};
|
|
|
|
/*
|
|
* Modify signature by adding the group order to the upper half of the
|
|
* signature. This is caught by the check added in curve25519.c r1.14.
|
|
*/
|
|
static void
|
|
modify_signature(uint8_t *signature)
|
|
{
|
|
uint16_t sum;
|
|
uint8_t *upper_half = &signature[32];
|
|
uint16_t carry = 0;
|
|
size_t i;
|
|
|
|
for (i = 0; i < sizeof(order); i++) {
|
|
sum = carry + order[i] + upper_half[i];
|
|
carry = (sum > 0xff);
|
|
upper_half[i] = sum & 0xff;
|
|
}
|
|
|
|
/* carry == 0 since 0 <= upper_half < order and 2 * order < 2^256. */
|
|
}
|
|
|
|
static int
|
|
test_ED25519_signature_malleability(void)
|
|
{
|
|
uint8_t public_key[ED25519_PUBLIC_KEY_LENGTH];
|
|
uint8_t private_key[ED25519_PRIVATE_KEY_LENGTH];
|
|
uint8_t message[32];
|
|
uint8_t signature[ED25519_SIGNATURE_LENGTH];
|
|
int failed = 1;
|
|
|
|
ED25519_keypair(public_key, private_key);
|
|
arc4random_buf(message, sizeof(message));
|
|
|
|
if (!ED25519_sign(signature, message, sizeof(message),
|
|
public_key, private_key)) {
|
|
fprintf(stderr, "Failed to sign random message\n");
|
|
dump_info(message, sizeof(message), public_key, private_key,
|
|
NULL);
|
|
goto err;
|
|
}
|
|
|
|
if (!ED25519_verify(message, sizeof(message), signature, public_key)) {
|
|
fprintf(stderr, "Failed to verify random message\n");
|
|
dump_info(message, sizeof(message), public_key, private_key,
|
|
signature);
|
|
goto err;
|
|
}
|
|
|
|
modify_signature(signature);
|
|
|
|
if (ED25519_verify(message, sizeof(message), signature, public_key)) {
|
|
fprintf(stderr, "Verified with modified signature\n");
|
|
dump_info(message, sizeof(message), public_key, private_key,
|
|
signature);
|
|
goto err;
|
|
}
|
|
|
|
failed = 0;
|
|
|
|
err:
|
|
return failed;
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int failed = 0;
|
|
|
|
failed |= test_ED25519_verify();
|
|
failed |= test_ED25519_sign();
|
|
failed |= test_ED25519_signature_malleability();
|
|
|
|
return failed;
|
|
}
|