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/*
* Copyright (c) 2016, Vsevolod Stakhov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
* EXPRESS 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 AUTHOR 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.
*/
#include "config.h"
#include "cryptobox.h"
#include "ed25519.h"
#include "platform_config.h"
#include "libutil/str_util.h"
extern unsigned long cpu_config;
typedef struct ed25519_impl_s {
unsigned long cpu_flags;
const char *desc;
void (*keypair) (unsigned char *pk, unsigned char *sk);
void (*sign) (unsigned char *sig, size_t *siglen_p,
const unsigned char *m, size_t mlen,
const unsigned char *sk);
bool (*verify) (const unsigned char *sig,
const unsigned char *m,
size_t mlen,
const unsigned char *pk);
} ed25519_impl_t;
#define ED25519_DECLARE(ext) \
void ed_keypair_##ext(unsigned char *pk, unsigned char *sk); \
void ed_sign_##ext(unsigned char *sig, size_t *siglen_p, \
const unsigned char *m, size_t mlen, \
const unsigned char *sk); \
bool ed_verify_##ext(const unsigned char *sig, \
const unsigned char *m, \
size_t mlen, \
const unsigned char *pk)
#define ED25519_IMPL(cpuflags, desc, ext) \
{(cpuflags), desc, ed_keypair_##ext, ed_sign_##ext, ed_verify_##ext}
ED25519_DECLARE(ref);
#define ED25519_REF ED25519_IMPL(0, "ref", ref)
static const ed25519_impl_t ed25519_list[] = {
ED25519_REF,
};
static const ed25519_impl_t *ed25519_opt = &ed25519_list[0];
static bool ed25519_test (const ed25519_impl_t *impl);
const char*
ed25519_load (void)
{
guint i;
if (cpu_config != 0) {
for (i = 0; i < G_N_ELEMENTS(ed25519_list); i++) {
if (ed25519_list[i].cpu_flags & cpu_config) {
ed25519_opt = &ed25519_list[i];
g_assert (ed25519_test (ed25519_opt));
break;
}
}
}
g_assert (ed25519_test (ed25519_opt));
return ed25519_opt->desc;
}
void
ed25519_keypair (unsigned char *pk, unsigned char *sk)
{
ed25519_opt->keypair (pk, sk);
}
void
ed25519_sign (unsigned char *sig, size_t *siglen_p,
const unsigned char *m, size_t mlen,
const unsigned char *sk)
{
ed25519_opt->sign (sig, siglen_p, m, mlen, sk);
}
bool
ed25519_verify (const unsigned char *sig,
const unsigned char *m,
size_t mlen,
const unsigned char *pk)
{
return (ed25519_opt->verify (sig, m, mlen, pk) == 0);
}
struct ed25519_test_vector {
const char *message;
const char *pk;
const char *sk;
const char *sig;
};
static const struct ed25519_test_vector test_vectors[] = {
{
.sk = ""
"9d61b19deffd5a60ba844af492ec2cc4"
"4449c5697b326919703bac031cae7f60"
"",
.pk = ""
"d75a980182b10ab7d54bfed3c964073a"
"0ee172f3daa62325af021a68f707511a"
"",
.message = ""
"",
.sig = ""
"e5564300c360ac729086e2cc806e828a"
"84877f1eb8e5d974d873e06522490155"
"5fb8821590a33bacc61e39701cf9b46b"
"d25bf5f0595bbe24655141438e7a100b"
"",
},
{
.sk = ""
"4ccd089b28ff96da9db6c346ec114e0f"
"5b8a319f35aba624da8cf6ed4fb8a6fb"
"",
.pk = ""
"3d4017c3e843895a92b70aa74d1b7ebc"
"9c982ccf2ec4968cc0cd55f12af4660c"
"",
.message = ""
"72"
"",
.sig = ""
"92a009a9f0d4cab8720e820b5f642540"
"a2b27b5416503f8fb3762223ebdb69da"
"085ac1e43e15996e458f3613d0f11d8c"
"387b2eaeb4302aeeb00d291612bb0c00"
"",
},
{
.sk = ""
"c5aa8df43f9f837bedb7442f31dcb7b1"
"66d38535076f094b85ce3a2e0b4458f7"
"",
.pk = ""
"fc51cd8e6218a1a38da47ed00230f058"
"0816ed13ba3303ac5deb911548908025"
"",
.message = ""
"af82"
"",
.sig = ""
"6291d657deec24024827e69c3abe01a3"
"0ce548a284743a445e3680d7db5ac3ac"
"18ff9b538d16f290ae67f760984dc659"
"4a7c15e9716ed28dc027beceea1ec40a"
"",
},
{
.sk = ""
"f5e5767cf153319517630f226876b86c"
"8160cc583bc013744c6bf255f5cc0ee5"
"",
.pk = ""
"278117fc144c72340f67d0f2316e8386"
"ceffbf2b2428c9c51fef7c597f1d426e"
"",
.message = ""
"08b8b2b733424243760fe426a4b54908"
"632110a66c2f6591eabd3345e3e4eb98"
"fa6e264bf09efe12ee50f8f54e9f77b1"
"e355f6c50544e23fb1433ddf73be84d8"
"79de7c0046dc4996d9e773f4bc9efe57"
"38829adb26c81b37c93a1b270b20329d"
"658675fc6ea534e0810a4432826bf58c"
"941efb65d57a338bbd2e26640f89ffbc"
"1a858efcb8550ee3a5e1998bd177e93a"
"7363c344fe6b199ee5d02e82d522c4fe"
"ba15452f80288a821a579116ec6dad2b"
"3b310da903401aa62100ab5d1a36553e"
"06203b33890cc9b832f79ef80560ccb9"
"a39ce767967ed628c6ad573cb116dbef"
"efd75499da96bd68a8a97b928a8bbc10"
"3b6621fcde2beca1231d206be6cd9ec7"
"aff6f6c94fcd7204ed3455c68c83f4a4"
"1da4af2b74ef5c53f1d8ac70bdcb7ed1"
"85ce81bd84359d44254d95629e9855a9"
"4a7c1958d1f8ada5d0532ed8a5aa3fb2"
"d17ba70eb6248e594e1a2297acbbb39d"
"502f1a8c6eb6f1ce22b3de1a1f40cc24"
"554119a831a9aad6079cad88425de6bd"
"e1a9187ebb6092cf67bf2b13fd65f270"
"88d78b7e883c8759d2c4f5c65adb7553"
"878ad575f9fad878e80a0c9ba63bcbcc"
"2732e69485bbc9c90bfbd62481d9089b"
"eccf80cfe2df16a2cf65bd92dd597b07"
"07e0917af48bbb75fed413d238f5555a"
"7a569d80c3414a8d0859dc65a46128ba"
"b27af87a71314f318c782b23ebfe808b"
"82b0ce26401d2e22f04d83d1255dc51a"
"ddd3b75a2b1ae0784504df543af8969b"
"e3ea7082ff7fc9888c144da2af58429e"
"c96031dbcad3dad9af0dcbaaaf268cb8"
"fcffead94f3c7ca495e056a9b47acdb7"
"51fb73e666c6c655ade8297297d07ad1"
"ba5e43f1bca32301651339e22904cc8c"
"42f58c30c04aafdb038dda0847dd988d"
"cda6f3bfd15c4b4c4525004aa06eeff8"
"ca61783aacec57fb3d1f92b0fe2fd1a8"
"5f6724517b65e614ad6808d6f6ee34df"
"f7310fdc82aebfd904b01e1dc54b2927"
"094b2db68d6f903b68401adebf5a7e08"
"d78ff4ef5d63653a65040cf9bfd4aca7"
"984a74d37145986780fc0b16ac451649"
"de6188a7dbdf191f64b5fc5e2ab47b57"
"f7f7276cd419c17a3ca8e1b939ae49e4"
"88acba6b965610b5480109c8b17b80e1"
"b7b750dfc7598d5d5011fd2dcc5600a3"
"2ef5b52a1ecc820e308aa342721aac09"
"43bf6686b64b2579376504ccc493d97e"
"6aed3fb0f9cd71a43dd497f01f17c0e2"
"cb3797aa2a2f256656168e6c496afc5f"
"b93246f6b1116398a346f1a641f3b041"
"e989f7914f90cc2c7fff357876e506b5"
"0d334ba77c225bc307ba537152f3f161"
"0e4eafe595f6d9d90d11faa933a15ef1"
"369546868a7f3a45a96768d40fd9d034"
"12c091c6315cf4fde7cb68606937380d"
"b2eaaa707b4c4185c32eddcdd306705e"
"4dc1ffc872eeee475a64dfac86aba41c"
"0618983f8741c5ef68d3a101e8a3b8ca"
"c60c905c15fc910840b94c00a0b9d0"
"",
.sig = ""
"0aab4c900501b3e24d7cdf4663326a3a"
"87df5e4843b2cbdb67cbf6e460fec350"
"aa5371b1508f9f4528ecea23c436d94b"
"5e8fcd4f681e30a6ac00a9704a188a03"
}
};
static bool
ed25519_test (const ed25519_impl_t *impl)
{
guint i;
gchar sig[rspamd_cryptobox_MAX_SIGBYTES];
gchar joint_sk[rspamd_cryptobox_MAX_SIGSKBYTES];
guchar *sk, *pk, *expected, *msg;
for (i = 0; i < G_N_ELEMENTS (test_vectors); i ++) {
sk = rspamd_decode_hex (test_vectors[i].sk, strlen (test_vectors[i].sk));
pk = rspamd_decode_hex (test_vectors[i].pk, strlen (test_vectors[i].pk));
expected = rspamd_decode_hex (test_vectors[i].sig,
strlen (test_vectors[i].sig));
msg = rspamd_decode_hex (test_vectors[i].message,
strlen (test_vectors[i].message));
memcpy (joint_sk, sk, 32);
memcpy (joint_sk + 32, pk, 32);
impl->sign (sig, NULL, msg, strlen (test_vectors[i].message) / 2, joint_sk);
if (memcmp (sig, expected, rspamd_cryptobox_signature_bytes ()) != 0) {
return false;
}
if (impl->verify (sig, msg, strlen (test_vectors[i].message) / 2, pk) != 0) {
return false;
}
g_free (sk);
g_free (pk);
g_free (expected);
g_free (msg);
}
return true;
}
|
