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- /*-
- * Copyright 2016 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #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;
- }
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