ext: Pull in tinycrypt v0.2.6
Zephyr 1.9 moves to tinycrypt v0.2.7. This introduces a breaking API
change. This makes things challenging for mcuboot, which would like to
be able to work across multiple platforms.
To help with this, bring in the last working version of Tinycrypt v0.2.6
from https://github.com/01org/tinycrypt. Tinycrypt is released under a
3-clause BSD-style license, with parts under the micro-ecc license,
which is a 2-clause license. Please see ext/tinycrypt/LICENSE for
details.
Signed-off-by: David Brown <david.brown@linaro.org>
diff --git a/ext/tinycrypt/tests/test_ecc_dsa.c b/ext/tinycrypt/tests/test_ecc_dsa.c
new file mode 100644
index 0000000..9f7a8cd
--- /dev/null
+++ b/ext/tinycrypt/tests/test_ecc_dsa.c
@@ -0,0 +1,611 @@
+/* test_ecc_ecdsa.c - TinyCrypt implementation of some EC-DSA tests */
+
+/*
+ * Copyright (C) 2015 by Intel Corporation, 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.
+ *
+ * - Neither the name of Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
+ *
+ * test_ecc_ecdsa.c -- Implementation of some EC-DSA tests
+ *
+ */
+#include <tinycrypt/ecc_dsa.h>
+#include <tinycrypt/ecc.h>
+#include <tinycrypt/ecc_dh.h>
+#include <test_utils.h>
+#include <test_ecc_utils.h>
+#include <tinycrypt/sha256.h>
+#include <tinycrypt/constants.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+
+#define BUF_SIZE 256
+
+int sign_vectors(TCSha256State_t hash,
+ char **d_vec,
+ char **k_vec,
+ char **msg_vec,
+ char **qx_vec,
+ char **qy_vec,
+ char **r_vec,
+ char **s_vec,
+ int tests,
+ bool verbose) {
+
+ uint32_t seed[2*NUM_ECC_DIGITS];
+ uint32_t prv[NUM_ECC_DIGITS];
+ uint32_t r[NUM_ECC_DIGITS];
+ uint32_t s[NUM_ECC_DIGITS];
+ uint8_t digest[TC_SHA256_DIGEST_SIZE];
+ uint32_t dig32[NUM_ECC_DIGITS];
+
+ /* expected outputs (converted input vectors) */
+ uint32_t exp_r[NUM_ECC_DIGITS];
+ uint32_t exp_s[NUM_ECC_DIGITS];
+
+ uint8_t msg[BUF_SIZE];
+ size_t msglen;
+
+ for (int i=0; i<tests; i++) {
+
+ // use keygen test to generate+validate pubkey
+ keygen_vectors(d_vec+i, qx_vec+i, qy_vec+i, 1, false);
+ string2scalar(prv, NUM_ECC_DIGITS, d_vec[i]);
+
+ // validate ECDSA: hash message, sign digest, check r+s
+ memset(seed, 0, 2*NUM_ECC_BYTES);
+ string2scalar(seed, NUM_ECC_DIGITS, k_vec[i]);
+ string2scalar(exp_r, NUM_ECC_DIGITS, r_vec[i]);
+ string2scalar(exp_s, NUM_ECC_DIGITS, s_vec[i]);
+
+ msglen = hex2bin(msg, BUF_SIZE, msg_vec[i], strlen(msg_vec[i]));
+
+ if (msglen == false) {
+ printf("failed to import message!\n");
+ exit(-1);
+ }
+
+ tc_sha256_init(hash);
+ tc_sha256_update(hash, msg, msglen);
+ tc_sha256_final(digest, hash);
+
+ // if digest larger than ECC scalar, drop the end
+ // if digest smaller than ECC scalar, zero-pad front
+ int hash_dwords = TC_SHA256_DIGEST_SIZE/4;
+ if (NUM_ECC_DIGITS < hash_dwords)
+ hash_dwords=NUM_ECC_DIGITS;
+
+ memset(dig32, 0, NUM_ECC_BYTES-4*hash_dwords);
+ ecc_bytes2native(dig32+(NUM_ECC_DIGITS-hash_dwords), digest);
+
+ if (true != ecdsa_sign(r, s, prv, seed, dig32)) {
+ printf("ECDSA_sign failed!\n");
+ exit(-1);
+ }
+
+ check_ecc_result(i, "sig.r", exp_r, r, NUM_ECC_DIGITS, verbose);
+ check_ecc_result(i, "sig.s", exp_s, s, NUM_ECC_DIGITS, verbose);
+ }
+ return 0;
+}
+
+void cavp_sign(bool verbose) {
+
+ /*
+ * [P-256,SHA-256]
+ */
+ char *d[] = {
+ "519b423d715f8b581f4fa8ee59f4771a5b44c8130b4e3eacca54a56dda72b464",
+ "0f56db78ca460b055c500064824bed999a25aaf48ebb519ac201537b85479813",
+ "e283871239837e13b95f789e6e1af63bf61c918c992e62bca040d64cad1fc2ef",
+ "a3d2d3b7596f6592ce98b4bfe10d41837f10027a90d7bb75349490018cf72d07",
+ "53a0e8a8fe93db01e7ae94e1a9882a102ebd079b3a535827d583626c272d280d",
+ "4af107e8e2194c830ffb712a65511bc9186a133007855b49ab4b3833aefc4a1d",
+ "78dfaa09f1076850b3e206e477494cddcfb822aaa0128475053592c48ebaf4ab",
+ "80e692e3eb9fcd8c7d44e7de9f7a5952686407f90025a1d87e52c7096a62618a",
+ "5e666c0db0214c3b627a8e48541cc84a8b6fd15f300da4dff5d18aec6c55b881",
+ "f73f455271c877c4d5334627e37c278f68d143014b0a05aa62f308b2101c5308",
+ "b20d705d9bd7c2b8dc60393a5357f632990e599a0975573ac67fd89b49187906",
+ "d4234bebfbc821050341a37e1240efe5e33763cbbb2ef76a1c79e24724e5a5e7",
+ "b58f5211dff440626bb56d0ad483193d606cf21f36d9830543327292f4d25d8c",
+ "54c066711cdb061eda07e5275f7e95a9962c6764b84f6f1f3ab5a588e0a2afb1",
+ "34fa4682bf6cb5b16783adcd18f0e6879b92185f76d7c920409f904f522db4b1",
+ };
+
+ char *k[] = {
+ "94a1bbb14b906a61a280f245f9e93c7f3b4a6247824f5d33b9670787642a68de",
+ "6d3e71882c3b83b156bb14e0ab184aa9fb728068d3ae9fac421187ae0b2f34c6",
+ "ad5e887eb2b380b8d8280ad6e5ff8a60f4d26243e0124c2f31a297b5d0835de2",
+ "24fc90e1da13f17ef9fe84cc96b9471ed1aaac17e3a4bae33a115df4e5834f18",
+ "5d833e8d24cc7a402d7ee7ec852a3587cddeb48358cea71b0bedb8fabe84e0c4",
+ "e18f96f84dfa2fd3cdfaec9159d4c338cd54ad314134f0b31e20591fc238d0ab",
+ "295544dbb2da3da170741c9b2c6551d40af7ed4e891445f11a02b66a5c258a77",
+ "7c80fd66d62cc076cef2d030c17c0a69c99611549cb32c4ff662475adbe84b22",
+ "2e7625a48874d86c9e467f890aaa7cd6ebdf71c0102bfdcfa24565d6af3fdce9",
+ "62f8665fd6e26b3fa069e85281777a9b1f0dfd2c0b9f54a086d0c109ff9fd615",
+ "72b656f6b35b9ccbc712c9f1f3b1a14cbbebaec41c4bca8da18f492a062d6f6f",
+ "d926fe10f1bfd9855610f4f5a3d666b1a149344057e35537373372ead8b1a778",
+ "e158bf4a2d19a99149d9cdb879294ccb7aaeae03d75ddd616ef8ae51a6dc1071",
+ "646fe933e96c3b8f9f507498e907fdd201f08478d0202c752a7c2cfebf4d061a",
+ "a6f463ee72c9492bc792fe98163112837aebd07bab7a84aaed05be64db3086f4",
+ };
+
+ char *Msg[] = {
+ "5905238877c77421f73e43ee3da6f2d9e2ccad5fc942dcec0cbd25482935faaf416983fe16"
+ "5b1a045ee2bcd2e6dca3bdf46c4310a7461f9a37960ca672d3feb5473e253605fb1ddfd280"
+ "65b53cb5858a8ad28175bf9bd386a5e471ea7a65c17cc934a9d791e91491eb3754d0379979"
+ "0fe2d308d16146d5c9b0d0debd97d79ce8",
+ "c35e2f092553c55772926bdbe87c9796827d17024dbb9233a545366e2e5987dd344deb72df"
+ "987144b8c6c43bc41b654b94cc856e16b96d7a821c8ec039b503e3d86728c494a967d83011"
+ "a0e090b5d54cd47f4e366c0912bc808fbb2ea96efac88fb3ebec9342738e225f7c7c2b011c"
+ "e375b56621a20642b4d36e060db4524af1",
+ "3c054e333a94259c36af09ab5b4ff9beb3492f8d5b4282d16801daccb29f70fe61a0b37ffe"
+ "f5c04cd1b70e85b1f549a1c4dc672985e50f43ea037efa9964f096b5f62f7ffdf8d6bfb2cc"
+ "859558f5a393cb949dbd48f269343b5263dcdb9c556eca074f2e98e6d94c2c29a677afaf80"
+ "6edf79b15a3fcd46e7067b7669f83188ee",
+ "0989122410d522af64ceb07da2c865219046b4c3d9d99b01278c07ff63eaf1039cb787ae9e"
+ "2dd46436cc0415f280c562bebb83a23e639e476a02ec8cff7ea06cd12c86dcc3adefbf1a9e"
+ "9a9b6646c7599ec631b0da9a60debeb9b3e19324977f3b4f36892c8a38671c8e1cc8e50fcd"
+ "50f9e51deaf98272f9266fc702e4e57c30",
+ "dc66e39f9bbfd9865318531ffe9207f934fa615a5b285708a5e9c46b7775150e818d7f24d2"
+ "a123df3672fff2094e3fd3df6fbe259e3989dd5edfcccbe7d45e26a775a5c4329a084f057c"
+ "42c13f3248e3fd6f0c76678f890f513c32292dd306eaa84a59abe34b16cb5e38d0e885525d"
+ "10336ca443e1682aa04a7af832b0eee4e7",
+ "600974e7d8c5508e2c1aab0783ad0d7c4494ab2b4da265c2fe496421c4df238b0be25f2565"
+ "9157c8a225fb03953607f7df996acfd402f147e37aee2f1693e3bf1c35eab3ae360a2bd91d"
+ "04622ea47f83d863d2dfecb618e8b8bdc39e17d15d672eee03bb4ce2cc5cf6b217e5faf3f3"
+ "36fdd87d972d3a8b8a593ba85955cc9d71",
+ "dfa6cb9b39adda6c74cc8b2a8b53a12c499ab9dee01b4123642b4f11af336a91a5c9ce0520"
+ "eb2395a6190ecbf6169c4cba81941de8e76c9c908eb843b98ce95e0da29c5d4388040264e0"
+ "5e07030a577cc5d176387154eabae2af52a83e85c61c7c61da930c9b19e45d7e34c8516dc3"
+ "c238fddd6e450a77455d534c48a152010b",
+ "51d2547cbff92431174aa7fc7302139519d98071c755ff1c92e4694b58587ea560f72f32fc"
+ "6dd4dee7d22bb7387381d0256e2862d0644cdf2c277c5d740fa089830eb52bf79d1e75b859"
+ "6ecf0ea58a0b9df61e0c9754bfcd62efab6ea1bd216bf181c5593da79f10135a9bc6e164f1"
+ "854bc8859734341aad237ba29a81a3fc8b",
+ "558c2ac13026402bad4a0a83ebc9468e50f7ffab06d6f981e5db1d082098065bcff6f21a7a"
+ "74558b1e8612914b8b5a0aa28ed5b574c36ac4ea5868432a62bb8ef0695d27c1e3ceaf75c7"
+ "b251c65ddb268696f07c16d2767973d85beb443f211e6445e7fe5d46f0dce70d58a4cd9fe7"
+ "0688c035688ea8c6baec65a5fc7e2c93e8",
+ "4d55c99ef6bd54621662c3d110c3cb627c03d6311393b264ab97b90a4b15214a5593ba2510"
+ "a53d63fb34be251facb697c973e11b665cb7920f1684b0031b4dd370cb927ca7168b0bf8ad"
+ "285e05e9e31e34bc24024739fdc10b78586f29eff94412034e3b606ed850ec2c1900e8e681"
+ "51fc4aee5adebb066eb6da4eaa5681378e",
+ "f8248ad47d97c18c984f1f5c10950dc1404713c56b6ea397e01e6dd925e903b4fadfe2c9e8"
+ "77169e71ce3c7fe5ce70ee4255d9cdc26f6943bf48687874de64f6cf30a012512e787b8805"
+ "9bbf561162bdcc23a3742c835ac144cc14167b1bd6727e940540a9c99f3cbb41fb1dcb00d7"
+ "6dda04995847c657f4c19d303eb09eb48a",
+ "3b6ee2425940b3d240d35b97b6dcd61ed3423d8e71a0ada35d47b322d17b35ea0472f35edd"
+ "1d252f87b8b65ef4b716669fc9ac28b00d34a9d66ad118c9d94e7f46d0b4f6c2b2d339fd6b"
+ "cd351241a387cc82609057048c12c4ec3d85c661975c45b300cb96930d89370a327c98b67d"
+ "efaa89497aa8ef994c77f1130f752f94a4",
+ "c5204b81ec0a4df5b7e9fda3dc245f98082ae7f4efe81998dcaa286bd4507ca840a53d21b0"
+ "1e904f55e38f78c3757d5a5a4a44b1d5d4e480be3afb5b394a5d2840af42b1b4083d40afbf"
+ "e22d702f370d32dbfd392e128ea4724d66a3701da41ae2f03bb4d91bb946c7969404cb544f"
+ "71eb7a49eb4c4ec55799bda1eb545143a7",
+ "72e81fe221fb402148d8b7ab03549f1180bcc03d41ca59d7653801f0ba853add1f6d29edd7"
+ "f9abc621b2d548f8dbf8979bd16608d2d8fc3260b4ebc0dd42482481d548c7075711b57596"
+ "49c41f439fad69954956c9326841ea6492956829f9e0dc789f73633b40f6ac77bcae6dfc79"
+ "30cfe89e526d1684365c5b0be2437fdb01",
+ "21188c3edd5de088dacc1076b9e1bcecd79de1003c2414c3866173054dc82dde85169baa77"
+ "993adb20c269f60a5226111828578bcc7c29e6e8d2dae81806152c8ba0c6ada1986a1983eb"
+ "eec1473a73a04795b6319d48662d40881c1723a706f516fe75300f92408aa1dc6ae4288d20"
+ "46f23c1aa2e54b7fb6448a0da922bd7f34",
+ };
+
+ char *Qx[] = {
+ "1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83",
+ "e266ddfdc12668db30d4ca3e8f7749432c416044f2d2b8c10bf3d4012aeffa8a",
+ "74ccd8a62fba0e667c50929a53f78c21b8ff0c3c737b0b40b1750b2302b0bde8",
+ "322f80371bf6e044bc49391d97c1714ab87f990b949bc178cb7c43b7c22d89e1",
+ "1bcec4570e1ec2436596b8ded58f60c3b1ebc6a403bc5543040ba82963057244",
+ "a32e50be3dae2c8ba3f5e4bdae14cf7645420d425ead94036c22dd6c4fc59e00",
+ "8bcfe2a721ca6d753968f564ec4315be4857e28bef1908f61a366b1f03c97479",
+ "a88bc8430279c8c0400a77d751f26c0abc93e5de4ad9a4166357952fe041e767",
+ "1bc487570f040dc94196c9befe8ab2b6de77208b1f38bdaae28f9645c4d2bc3a",
+ "b8188bd68701fc396dab53125d4d28ea33a91daf6d21485f4770f6ea8c565dde",
+ "51f99d2d52d4a6e734484a018b7ca2f895c2929b6754a3a03224d07ae61166ce",
+ "8fb287f0202ad57ae841aea35f29b2e1d53e196d0ddd9aec24813d64c0922fb7",
+ "68229b48c2fe19d3db034e4c15077eb7471a66031f28a980821873915298ba76",
+ "0a7dbb8bf50cb605eb2268b081f26d6b08e012f952c4b70a5a1e6e7d46af98bb",
+ "105d22d9c626520faca13e7ced382dcbe93498315f00cc0ac39c4821d0d73737",
+ };
+
+ char *Qy[] = {
+ "ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9",
+ "bfa86404a2e9ffe67d47c587ef7a97a7f456b863b4d02cfc6928973ab5b1cb39",
+ "29074e21f3a0ef88b9efdf10d06aa4c295cc1671f758ca0e4cd108803d0f2614",
+ "3c15d54a5cc6b9f09de8457e873eb3deb1fceb54b0b295da6050294fae7fd999",
+ "8af62a4c683f096b28558320737bf83b9959a46ad2521004ef74cf85e67494e1",
+ "d623bf641160c289d6742c6257ae6ba574446dd1d0e74db3aaa80900b78d4ae9",
+ "0f67576a30b8e20d4232d8530b52fb4c89cbc589ede291e499ddd15fe870ab96",
+ "2d365a1eef25ead579cc9a069b6abc1b16b81c35f18785ce26a10ba6d1381185",
+ "ec81602abd8345e71867c8210313737865b8aa186851e1b48eaca140320f5d8f",
+ "423f058810f277f8fe076f6db56e9285a1bf2c2a1dae145095edd9c04970bc4a",
+ "4737da963c6ef7247fb88d19f9b0c667cac7fe12837fdab88c66f10d3c14cad1",
+ "1f6daff1aa2dd2d6d3741623eecb5e7b612997a1039aab2e5cf2de969cfea573",
+ "303e8ee3742a893f78b810991da697083dd8f11128c47651c27a56740a80c24c",
+ "f26dd7d799930062480849962ccf5004edcfd307c044f4e8f667c9baa834eeae",
+ "6c47f3cbbfa97dfcebe16270b8c7d5d3a5900b888c42520d751e8faf3b401ef4",
+ };
+
+ char *R[] = {
+ "f3ac8061b514795b8843e3d6629527ed2afd6b1f6a555a7acabb5e6f79c8c2ac",
+ "976d3a4e9d23326dc0baa9fa560b7c4e53f42864f508483a6473b6a11079b2db",
+ "35fb60f5ca0f3ca08542fb3cc641c8263a2cab7a90ee6a5e1583fac2bb6f6bd1",
+ "d7c562370af617b581c84a2468cc8bd50bb1cbf322de41b7887ce07c0e5884ca",
+ "18caaf7b663507a8bcd992b836dec9dc5703c080af5e51dfa3a9a7c387182604",
+ "8524c5024e2d9a73bde8c72d9129f57873bbad0ed05215a372a84fdbc78f2e68",
+ "c5a186d72df452015480f7f338970bfe825087f05c0088d95305f87aacc9b254",
+ "9d0c6afb6df3bced455b459cc21387e14929392664bb8741a3693a1795ca6902",
+ "2f9e2b4e9f747c657f705bffd124ee178bbc5391c86d056717b140c153570fd9",
+ "1cc628533d0004b2b20e7f4baad0b8bb5e0673db159bbccf92491aef61fc9620",
+ "9886ae46c1415c3bc959e82b760ad760aab66885a84e620aa339fdf102465c42",
+ "490efd106be11fc365c7467eb89b8d39e15d65175356775deab211163c2504cb",
+ "e67a9717ccf96841489d6541f4f6adb12d17b59a6bef847b6183b8fcf16a32eb",
+ "b53ce4da1aa7c0dc77a1896ab716b921499aed78df725b1504aba1597ba0c64b",
+ "542c40a18140a6266d6f0286e24e9a7bad7650e72ef0e2131e629c076d962663",
+ };
+
+ char *S[] = {
+ "8bf77819ca05a6b2786c76262bf7371cef97b218e96f175a3ccdda2acc058903",
+ "1b766e9ceb71ba6c01dcd46e0af462cd4cfa652ae5017d4555b8eeefe36e1932",
+ "ee59d81bc9db1055cc0ed97b159d8784af04e98511d0a9a407b99bb292572e96",
+ "b46d9f2d8c4bf83546ff178f1d78937c008d64e8ecc5cbb825cb21d94d670d89",
+ "77c68928ac3b88d985fb43fb615fb7ff45c18ba5c81af796c613dfa98352d29c",
+ "d18c2caf3b1072f87064ec5e8953f51301cada03469c640244760328eb5a05cb",
+ "84a58f9e9d9e735344b316b1aa1ab5185665b85147dc82d92e969d7bee31ca30",
+ "d7f9ddd191f1f412869429209ee3814c75c72fa46a9cccf804a2f5cc0b7e739f",
+ "f5413bfd85949da8d83de83ab0d19b2986613e224d1901d76919de23ccd03199",
+ "880e0bbf82a8cf818ed46ba03cf0fc6c898e36fca36cc7fdb1d2db7503634430",
+ "2bf3a80bc04faa35ebecc0f4864ac02d349f6f126e0f988501b8d3075409a26c",
+ "644300fc0da4d40fb8c6ead510d14f0bd4e1321a469e9c0a581464c7186b7aa7",
+ "9ae6ba6d637706849a6a9fc388cf0232d85c26ea0d1fe7437adb48de58364333",
+ "d7c246dc7ad0e67700c373edcfdd1c0a0495fc954549ad579df6ed1438840851",
+ "4f7f65305e24a6bbb5cff714ba8f5a2cee5bdc89ba8d75dcbf21966ce38eb66f",
+ };
+
+ struct tc_sha256_state_struct sha256_ctx;
+
+ printf("Test #1: ECDSAsign ");
+ printf("NIST-p256, SHA2-256\n");
+
+ sign_vectors(
+ &sha256_ctx,
+ d,
+ k,
+ Msg,
+ Qx,
+ Qy,
+ R,
+ S,
+ 15,
+ verbose);
+}
+
+
+void vrfy_vectors(TCSha256State_t hash,
+ char **msg_vec,
+ char **qx_vec,
+ char **qy_vec,
+ char **r_vec,
+ char **s_vec,
+ char **res_vec,
+ int tests,
+ bool verbose) {
+
+ EccPoint pub;
+ uint32_t r[NUM_ECC_DIGITS];
+ uint32_t s[NUM_ECC_DIGITS];
+ uint8_t digest[TC_SHA256_DIGEST_SIZE];
+ uint32_t dig32[NUM_ECC_DIGITS];
+
+ int rc;
+ int exp_rc;
+ char tmp;
+
+ uint8_t msg[BUF_SIZE];
+ size_t msglen;
+
+ for (int i=0; i<tests; i++) {
+
+ string2scalar(pub.x, NUM_ECC_DIGITS, qx_vec[i]);
+ string2scalar(pub.y, NUM_ECC_DIGITS, qy_vec[i]);
+ string2scalar(r, NUM_ECC_DIGITS, r_vec[i]);
+ string2scalar(s, NUM_ECC_DIGITS, s_vec[i]);
+
+ if (2 != sscanf(res_vec[i], "%c (%d ", &tmp, &exp_rc)) {
+ printf("Error: failed to parse CAVP response.\n");
+ exit(-1);
+ }
+
+ // validate ECDSA: hash message, verify r+s
+ msglen = hex2bin(msg, BUF_SIZE, msg_vec[i], strlen(msg_vec[i]));
+
+ if (msglen == false) {
+ printf("failed to import message!\n");
+ exit(-1);
+ }
+
+ tc_sha256_init(hash);
+ tc_sha256_update(hash, msg, msglen);
+ tc_sha256_final(digest, hash);
+
+ // if digest larger than ECC scalar, drop the end
+ // if digest smaller than ECC scalar, zero-pad front
+ int hash_dwords = TC_SHA256_DIGEST_SIZE/4;
+ if (NUM_ECC_DIGITS < hash_dwords)
+ hash_dwords=NUM_ECC_DIGITS;
+
+ memset(dig32, 0, NUM_ECC_BYTES-4*hash_dwords);
+ ecc_bytes2native(dig32+(NUM_ECC_DIGITS-hash_dwords), digest);
+
+ // adapt return codes to match CAVP error..
+ if (0 != ecc_valid_public_key(&pub)) {
+ rc = 4; // error 4 - Q changed
+ } else {
+ rc = ecdsa_verify(&pub, dig32, r, s);
+ rc = !rc; // CAVP expects 0 for success, others for fail
+ if (exp_rc != 0 && rc != 0)
+ rc = exp_rc; // mimic CAVP code on errors..
+ }
+
+ check_code(i, res_vec[i], exp_rc, rc, verbose);
+ }
+}
+
+void cavp_verify(bool verbose) {
+
+ /*
+ * [P-256,SHA-256]
+ */
+ char *Msg[] = {
+ "e4796db5f785f207aa30d311693b3702821dff1168fd2e04c0836825aefd850d9aa60326d8"
+ "8cde1a23c7745351392ca2288d632c264f197d05cd424a30336c19fd09bb229654f0222fcb"
+ "881a4b35c290a093ac159ce13409111ff0358411133c24f5b8e2090d6db6558afc36f06ca1"
+ "f6ef779785adba68db27a409859fc4c4a0",
+ "069a6e6b93dfee6df6ef6997cd80dd2182c36653cef10c655d524585655462d683877f95ec"
+ "c6d6c81623d8fac4e900ed0019964094e7de91f1481989ae1873004565789cbf5dc56c62ae"
+ "dc63f62f3b894c9c6f7788c8ecaadc9bd0e81ad91b2b3569ea12260e93924fdddd3972af52"
+ "73198f5efda0746219475017557616170e",
+ "df04a346cf4d0e331a6db78cca2d456d31b0a000aa51441defdb97bbeb20b94d8d746429a3"
+ "93ba88840d661615e07def615a342abedfa4ce912e562af714959896858af817317a840dcf"
+ "f85a057bb91a3c2bf90105500362754a6dd321cdd86128cfc5f04667b57aa78c112411e42d"
+ "a304f1012d48cd6a7052d7de44ebcc01de",
+ "e1130af6a38ccb412a9c8d13e15dbfc9e69a16385af3c3f1e5da954fd5e7c45fd75e2b8c36"
+ "699228e92840c0562fbf3772f07e17f1add56588dd45f7450e1217ad239922dd9c32695dc7"
+ "1ff2424ca0dec1321aa47064a044b7fe3c2b97d03ce470a592304c5ef21eed9f93da56bb23"
+ "2d1eeb0035f9bf0dfafdcc4606272b20a3",
+ "73c5f6a67456ae48209b5f85d1e7de7758bf235300c6ae2bdceb1dcb27a7730fb68c950b7f"
+ "cada0ecc4661d3578230f225a875e69aaa17f1e71c6be5c831f22663bac63d0c7a9635edb0"
+ "043ff8c6f26470f02a7bc56556f1437f06dfa27b487a6c4290d8bad38d4879b334e341ba09"
+ "2dde4e4ae694a9c09302e2dbf443581c08",
+ "666036d9b4a2426ed6585a4e0fd931a8761451d29ab04bd7dc6d0c5b9e38e6c2b263ff6cb8"
+ "37bd04399de3d757c6c7005f6d7a987063cf6d7e8cb38a4bf0d74a282572bd01d0f41e3fd0"
+ "66e3021575f0fa04f27b700d5b7ddddf50965993c3f9c7118ed78888da7cb221849b326059"
+ "2b8e632d7c51e935a0ceae15207bedd548",
+ "7e80436bce57339ce8da1b5660149a20240b146d108deef3ec5da4ae256f8f894edcbbc57b"
+ "34ce37089c0daa17f0c46cd82b5a1599314fd79d2fd2f446bd5a25b8e32fcf05b76d644573"
+ "a6df4ad1dfea707b479d97237a346f1ec632ea5660efb57e8717a8628d7f82af50a4e84b11"
+ "f21bdff6839196a880ae20b2a0918d58cd",
+ "1669bfb657fdc62c3ddd63269787fc1c969f1850fb04c933dda063ef74a56ce13e3a649700"
+ "820f0061efabf849a85d474326c8a541d99830eea8131eaea584f22d88c353965dabcdc4bf"
+ "6b55949fd529507dfb803ab6b480cd73ca0ba00ca19c438849e2cea262a1c57d8f81cd257f"
+ "b58e19dec7904da97d8386e87b84948169",
+ "3fe60dd9ad6caccf5a6f583b3ae65953563446c4510b70da115ffaa0ba04c076115c7043ab"
+ "8733403cd69c7d14c212c655c07b43a7c71b9a4cffe22c2684788ec6870dc2013f269172c8"
+ "22256f9e7cc674791bf2d8486c0f5684283e1649576efc982ede17c7b74b214754d70402fb"
+ "4bb45ad086cf2cf76b3d63f7fce39ac970",
+ "983a71b9994d95e876d84d28946a041f8f0a3f544cfcc055496580f1dfd4e312a2ad418fe6"
+ "9dbc61db230cc0c0ed97e360abab7d6ff4b81ee970a7e97466acfd9644f828ffec538abc38"
+ "3d0e92326d1c88c55e1f46a668a039beaa1be631a89129938c00a81a3ae46d4aecbf9707f7"
+ "64dbaccea3ef7665e4c4307fa0b0a3075c",
+ "4a8c071ac4fd0d52faa407b0fe5dab759f7394a5832127f2a3498f34aac287339e043b4ffa"
+ "79528faf199dc917f7b066ad65505dab0e11e6948515052ce20cfdb892ffb8aa9bf3f1aa5b"
+ "e30a5bbe85823bddf70b39fd7ebd4a93a2f75472c1d4f606247a9821f1a8c45a6cb80545de"
+ "2e0c6c0174e2392088c754e9c8443eb5af",
+ "0a3a12c3084c865daf1d302c78215d39bfe0b8bf28272b3c0b74beb4b7409db0718239de70"
+ "0785581514321c6440a4bbaea4c76fa47401e151e68cb6c29017f0bce4631290af5ea5e2bf"
+ "3ed742ae110b04ade83a5dbd7358f29a85938e23d87ac8233072b79c94670ff0959f9c7f45"
+ "17862ff829452096c78f5f2e9a7e4e9216",
+ "785d07a3c54f63dca11f5d1a5f496ee2c2f9288e55007e666c78b007d95cc28581dce51f49"
+ "0b30fa73dc9e2d45d075d7e3a95fb8a9e1465ad191904124160b7c60fa720ef4ef1c5d2998"
+ "f40570ae2a870ef3e894c2bc617d8a1dc85c3c55774928c38789b4e661349d3f84d2441a3b"
+ "856a76949b9f1f80bc161648a1cad5588e",
+ "76f987ec5448dd72219bd30bf6b66b0775c80b394851a43ff1f537f140a6e7229ef8cd72ad"
+ "58b1d2d20298539d6347dd5598812bc65323aceaf05228f738b5ad3e8d9fe4100fd767c2f0"
+ "98c77cb99c2992843ba3eed91d32444f3b6db6cd212dd4e5609548f4bb62812a920f6e2bf1"
+ "581be1ebeebdd06ec4e971862cc42055ca",
+ "60cd64b2cd2be6c33859b94875120361a24085f3765cb8b2bf11e026fa9d8855dbe435acf7"
+ "882e84f3c7857f96e2baab4d9afe4588e4a82e17a78827bfdb5ddbd1c211fbc2e6d884cddd"
+ "7cb9d90d5bf4a7311b83f352508033812c776a0e00c003c7e0d628e50736c7512df0acfa9f"
+ "2320bd102229f46495ae6d0857cc452a84",
+ };
+
+ char *Qx[] = {
+ "87f8f2b218f49845f6f10eec3877136269f5c1a54736dbdf69f89940cad41555",
+ "5cf02a00d205bdfee2016f7421807fc38ae69e6b7ccd064ee689fc1a94a9f7d2",
+ "2ddfd145767883ffbb0ac003ab4a44346d08fa2570b3120dcce94562422244cb",
+ "e424dc61d4bb3cb7ef4344a7f8957a0c5134e16f7a67c074f82e6e12f49abf3c",
+ "e0fc6a6f50e1c57475673ee54e3a57f9a49f3328e743bf52f335e3eeaa3d2864",
+ "a849bef575cac3c6920fbce675c3b787136209f855de19ffe2e8d29b31a5ad86",
+ "3dfb6f40f2471b29b77fdccba72d37c21bba019efa40c1c8f91ec405d7dcc5df",
+ "69b7667056e1e11d6caf6e45643f8b21e7a4bebda463c7fdbc13bc98efbd0214",
+ "bf02cbcf6d8cc26e91766d8af0b164fc5968535e84c158eb3bc4e2d79c3cc682",
+ "224a4d65b958f6d6afb2904863efd2a734b31798884801fcab5a590f4d6da9de",
+ "43691c7795a57ead8c5c68536fe934538d46f12889680a9cb6d055a066228369",
+ "9157dbfcf8cf385f5bb1568ad5c6e2a8652ba6dfc63bc1753edf5268cb7eb596",
+ "072b10c081a4c1713a294f248aef850e297991aca47fa96a7470abe3b8acfdda",
+ "09308ea5bfad6e5adf408634b3d5ce9240d35442f7fe116452aaec0d25be8c24",
+ "2d98ea01f754d34bbc3003df5050200abf445ec728556d7ed7d5c54c55552b6d",
+ };
+
+ char *Qy[] = {
+ "e15f369036f49842fac7a86c8a2b0557609776814448b8f5e84aa9f4395205e9",
+ "ec530ce3cc5c9d1af463f264d685afe2b4db4b5828d7e61b748930f3ce622a85",
+ "5f70c7d11ac2b7a435ccfbbae02c3df1ea6b532cc0e9db74f93fffca7c6f9a64",
+ "970eed7aa2bc48651545949de1dddaf0127e5965ac85d1243d6f60e7dfaee927",
+ "7f59d689c91e463607d9194d99faf316e25432870816dde63f5d4b373f12f22a",
+ "bf5fe4f7858f9b805bd8dcc05ad5e7fb889de2f822f3d8b41694e6c55c16b471",
+ "f22f953f1e395a52ead7f3ae3fc47451b438117b1e04d613bc8555b7d6e6d1bb",
+ "d3f9b12eb46c7c6fda0da3fc85bc1fd831557f9abc902a3be3cb3e8be7d1aa2f",
+ "069ba6cb06b49d60812066afa16ecf7b51352f2c03bd93ec220822b1f3dfba03",
+ "178d51fddada62806f097aa615d33b8f2404e6b1479f5fd4859d595734d6d2b9",
+ "f8790110b3c3b281aa1eae037d4f1234aff587d903d93ba3af225c27ddc9ccac",
+ "972570f4313d47fc96f7c02d5594d77d46f91e949808825b3d31f029e8296405",
+ "9581145cca04a0fb94cedce752c8f0370861916d2a94e7c647c5373ce6a4c8f5",
+ "f40c93e023ef494b1c3079b2d10ef67f3170740495ce2cc57f8ee4b0618b8ee5",
+ "9b52672742d637a32add056dfd6d8792f2a33c2e69dafabea09b960bc61e230a",
+ };
+
+ char *R[] = {
+ "d19ff48b324915576416097d2544f7cbdf8768b1454ad20e0baac50e211f23b0",
+ "dc23d130c6117fb5751201455e99f36f59aba1a6a21cf2d0e7481a97451d6693",
+ "9913111cff6f20c5bf453a99cd2c2019a4e749a49724a08774d14e4c113edda8",
+ "bf96b99aa49c705c910be33142017c642ff540c76349b9dab72f981fd9347f4f",
+ "1d75830cd36f4c9aa181b2c4221e87f176b7f05b7c87824e82e396c88315c407",
+ "25acc3aa9d9e84c7abf08f73fa4195acc506491d6fc37cb9074528a7db87b9d6",
+ "548886278e5ec26bed811dbb72db1e154b6f17be70deb1b210107decb1ec2a5a",
+ "288f7a1cd391842cce21f00e6f15471c04dc182fe4b14d92dc18910879799790",
+ "f5acb06c59c2b4927fb852faa07faf4b1852bbb5d06840935e849c4d293d1bad",
+ "87b93ee2fecfda54deb8dff8e426f3c72c8864991f8ec2b3205bb3b416de93d2",
+ "8acd62e8c262fa50dd9840480969f4ef70f218ebf8ef9584f199031132c6b1ce",
+ "dfaea6f297fa320b707866125c2a7d5d515b51a503bee817de9faa343cc48eeb",
+ "09f5483eccec80f9d104815a1be9cc1a8e5b12b6eb482a65c6907b7480cf4f19",
+ "5cc8aa7c35743ec0c23dde88dabd5e4fcd0192d2116f6926fef788cddb754e73",
+ "06108e525f845d0155bf60193222b3219c98e3d49424c2fb2a0987f825c17959",
+ };
+
+ char *Result[] = {
+ "F (3 - S changed)", "F (2 - R changed)", "F (4 - Q changed)",
+ "P (0 )", "P (0 )", "F (2 - R changed)",
+ "F (4 - Q changed)", "F (1 - Message changed)", "F (3 - S changed)",
+ "F (2 - R changed)", "F (3 - S changed)", "F (1 - Message changed)",
+ "F (4 - Q changed)", "F (1 - Message changed)", "P (0 )",
+ };
+
+ char *S[] = {
+ "a3e81e59311cdfff2d4784949f7a2cb50ba6c3a91fa54710568e61aca3e847c6",
+ "d6ce7708c18dbf35d4f8aa7240922dc6823f2e7058cbc1484fcad1599db5018c",
+ "9467cd4cd21ecb56b0cab0a9a453b43386845459127a952421f5c6382866c5cc",
+ "17c55095819089c2e03b9cd415abdf12444e323075d98f31920b9e0f57ec871c",
+ "cb2acb01dac96efc53a32d4a0d85d0c2e48955214783ecf50a4f0414a319c05a",
+ "9b21d5b5259ed3f2ef07dfec6cc90d3a37855d1ce122a85ba6a333f307d31537",
+ "e93bfebd2f14f3d827ca32b464be6e69187f5edbd52def4f96599c37d58eee75",
+ "247b3c4e89a3bcadfea73c7bfd361def43715fa382b8c3edf4ae15d6e55e9979",
+ "049dab79c89cc02f1484c437f523e080a75f134917fda752f2d5ca397addfe5d",
+ "4044a24df85be0cc76f21a4430b75b8e77b932a87f51e4eccbc45c263ebf8f66",
+ "cfca7ed3d4347fb2a29e526b43c348ae1ce6c60d44f3191b6d8ea3a2d9c92154",
+ "8f780ad713f9c3e5a4f7fa4c519833dfefc6a7432389b1e4af463961f09764f2",
+ "a4f90e560c5e4eb8696cb276e5165b6a9d486345dedfb094a76e8442d026378d",
+ "9c9c045ebaa1b828c32f82ace0d18daebf5e156eb7cbfdc1eff4399a8a900ae7",
+ "62b5cdd591e5b507e560167ba8f6f7cda74673eb315680cb89ccbc4eec477dce",
+ };
+
+ struct tc_sha256_state_struct sha256_ctx;
+
+ printf("Test #2: ECDSAvrfy ");
+ printf("NIST-p256, SHA2-256\n");
+
+ vrfy_vectors(
+ &sha256_ctx,
+ Msg,
+ Qx,
+ Qy,
+ R,
+ S,
+ Result,
+ 15,
+ verbose);
+}
+
+int randfd;
+
+void montecarlo_signverify(uint32_t num, bool verbose) {
+
+ printf("Test #3: Monte Carlo (Randomized EC-DSA signatures) ");
+ printf("NIST-p256, SHA2-256\n");
+
+ EccPoint l_public;
+ uint32_t l_private[NUM_ECC_DIGITS];
+
+ uint32_t l_hash[NUM_ECC_DIGITS];
+ uint32_t l_random[2 * NUM_ECC_DIGITS];
+
+ uint32_t r[NUM_ECC_DIGITS];
+ uint32_t s[NUM_ECC_DIGITS];
+
+ randfd = open("/dev/urandom", O_RDONLY);
+ if(randfd == -1) {
+ printf("No access to urandom\n");
+ exit(-1);
+ }
+
+ for(uint32_t i=0; i<num; ++i) {
+
+ getRandomBytes((char *)l_random, sizeof(l_random));
+ ecc_make_key(&l_public, l_private, l_random);
+
+ getRandomBytes((char *)l_hash, sizeof(l_hash));
+ getRandomBytes((char *)l_random, sizeof(l_random));
+
+ if(!ecdsa_sign(r, s, l_private, l_random, l_hash)) {
+ printf("ecdsa_sign() failed\n");
+ exit(-1);
+ }
+
+ if(ecc_valid_public_key(&l_public) != 0) {
+ printf("Not a valid public key!\n");
+ exit(-1);
+ }
+
+ if(!ecdsa_verify(&l_public, l_hash, r, s)) {
+ printf("ecdsa_verify() failed\n");
+ exit(-1);
+ }
+
+ if (verbose) {
+ fflush(stdout);
+ printf(".");
+ }
+ }
+ printf("\n");
+}
+
+int main() {
+
+ bool verbose = true;
+
+ cavp_sign(verbose);
+ cavp_verify(verbose);
+ montecarlo_signverify(10, verbose);
+
+ printf("\nAll ECC-DSA tests succeeded.\n");
+
+ return 0;
+}