/* * Copyright (c) 2020, The OpenThread Authors. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of the copyright holder 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 HOLDER 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. */ #include #include "test_platform.h" #include "test_util.hpp" #include "common/debug.hpp" #include "common/random.hpp" #include "crypto/ecdsa.hpp" #include #include #include #if OPENTHREAD_CONFIG_ECDSA_ENABLE namespace ot { namespace Crypto { void TestEcdsaVector(void) { // This case is derived from the test vector from RFC 6979 - section A.2.5 (for NIST P-256 and SHA-256 hash). const uint8_t kKeyPairInfo[] = { 0x30, 0x78, 0x02, 0x01, 0x01, 0x04, 0x21, 0x00, 0xC9, 0xAF, 0xA9, 0xD8, 0x45, 0xBA, 0x75, 0x16, 0x6B, 0x5C, 0x21, 0x57, 0x67, 0xB1, 0xD6, 0x93, 0x4E, 0x50, 0xC3, 0xDB, 0x36, 0xE8, 0x9B, 0x12, 0x7B, 0x8A, 0x62, 0x2B, 0x12, 0x0F, 0x67, 0x21, 0xA0, 0x0A, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01, 0x07, 0xA1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x60, 0xFE, 0xD4, 0xBA, 0x25, 0x5A, 0x9D, 0x31, 0xC9, 0x61, 0xEB, 0x74, 0xC6, 0x35, 0x6D, 0x68, 0xC0, 0x49, 0xB8, 0x92, 0x3B, 0x61, 0xFA, 0x6C, 0xE6, 0x69, 0x62, 0x2E, 0x60, 0xF2, 0x9F, 0xB6, 0x79, 0x03, 0xFE, 0x10, 0x08, 0xB8, 0xBC, 0x99, 0xA4, 0x1A, 0xE9, 0xE9, 0x56, 0x28, 0xBC, 0x64, 0xF2, 0xF1, 0xB2, 0x0C, 0x2D, 0x7E, 0x9F, 0x51, 0x77, 0xA3, 0xC2, 0x94, 0xD4, 0x46, 0x22, 0x99}; const uint8_t kPublicKey[] = { 0x60, 0xFE, 0xD4, 0xBA, 0x25, 0x5A, 0x9D, 0x31, 0xC9, 0x61, 0xEB, 0x74, 0xC6, 0x35, 0x6D, 0x68, 0xC0, 0x49, 0xB8, 0x92, 0x3B, 0x61, 0xFA, 0x6C, 0xE6, 0x69, 0x62, 0x2E, 0x60, 0xF2, 0x9F, 0xB6, 0x79, 0x03, 0xFE, 0x10, 0x08, 0xB8, 0xBC, 0x99, 0xA4, 0x1A, 0xE9, 0xE9, 0x56, 0x28, 0xBC, 0x64, 0xF2, 0xF1, 0xB2, 0x0C, 0x2D, 0x7E, 0x9F, 0x51, 0x77, 0xA3, 0xC2, 0x94, 0xD4, 0x46, 0x22, 0x99, }; const uint8_t kMessage[] = {'s', 'a', 'm', 'p', 'l', 'e'}; #if OPENTHREAD_CONFIG_DETERMINISTIC_ECDSA_ENABLE const uint8_t kExpectedSignature[] = { 0xEF, 0xD4, 0x8B, 0x2A, 0xAC, 0xB6, 0xA8, 0xFD, 0x11, 0x40, 0xDD, 0x9C, 0xD4, 0x5E, 0x81, 0xD6, 0x9D, 0x2C, 0x87, 0x7B, 0x56, 0xAA, 0xF9, 0x91, 0xC3, 0x4D, 0x0E, 0xA8, 0x4E, 0xAF, 0x37, 0x16, 0xF7, 0xCB, 0x1C, 0x94, 0x2D, 0x65, 0x7C, 0x41, 0xD4, 0x36, 0xC7, 0xA1, 0xB6, 0xE2, 0x9F, 0x65, 0xF3, 0xE9, 0x00, 0xDB, 0xB9, 0xAF, 0xF4, 0x06, 0x4D, 0xC4, 0xAB, 0x2F, 0x84, 0x3A, 0xCD, 0xA8, }; #endif Instance *instance = testInitInstance(); Ecdsa::P256::KeyPair keyPair; Ecdsa::P256::PublicKey publicKey; Ecdsa::P256::Signature signature; Sha256 sha256; Sha256::Hash hash; VerifyOrQuit(instance != nullptr, "Null OpenThread instance"); printf("\n===========================================================================\n"); printf("Test ECDA with test vector from RFC 6979 (A.2.5)\n"); printf("\nLoading key-pair ----------------------------------------------------------\n"); memcpy(keyPair.GetDerBytes(), kKeyPairInfo, sizeof(kKeyPairInfo)); keyPair.SetDerLength(sizeof(kKeyPairInfo)); DumpBuffer("KeyPair", keyPair.GetDerBytes(), keyPair.GetDerLength()); SuccessOrQuit(keyPair.GetPublicKey(publicKey)); DumpBuffer("PublicKey", publicKey.GetBytes(), Ecdsa::P256::PublicKey::kSize); VerifyOrQuit(sizeof(kPublicKey) == Ecdsa::P256::PublicKey::kSize, "Example public key is invalid"); VerifyOrQuit(memcmp(publicKey.GetBytes(), kPublicKey, sizeof(kPublicKey)) == 0, "KeyPair::GetPublicKey() did not return the expected key"); printf("\nHash the message ----------------------------------------------------------\n"); sha256.Start(); sha256.Update(kMessage); sha256.Finish(hash); DumpBuffer("Hash", hash.GetBytes(), sizeof(hash)); printf("\nSign the message ----------------------------------------------------------\n"); SuccessOrQuit(keyPair.Sign(hash, signature)); DumpBuffer("Signature", signature.GetBytes(), sizeof(signature)); #if OPENTHREAD_CONFIG_DETERMINISTIC_ECDSA_ENABLE printf("\nCheck signature against expected sequence----------------------------------\n"); DumpBuffer("Expected signature", kExpectedSignature, sizeof(kExpectedSignature)); VerifyOrQuit(sizeof(kExpectedSignature) == sizeof(signature)); VerifyOrQuit(memcmp(signature.GetBytes(), kExpectedSignature, sizeof(kExpectedSignature)) == 0); printf("Signature matches expected sequence.\n"); #endif printf("\nVerify the signature ------------------------------------------------------\n"); SuccessOrQuit(publicKey.Verify(hash, signature)); printf("\nSignature was verified successfully.\n\n"); testFreeInstance(instance); } void TestEcdsaKeyGenerationSignAndVerify(void) { Instance *instance = testInitInstance(); const char kMessage[] = "You are not a drop in the ocean. You are the entire ocean in a drop."; Ecdsa::P256::KeyPair keyPair; Ecdsa::P256::PublicKey publicKey; Ecdsa::P256::Signature signature; Sha256 sha256; Sha256::Hash hash; VerifyOrQuit(instance != nullptr, "Null OpenThread instance"); printf("\n===========================================================================\n"); printf("Test ECDA key generation, signing and verification\n"); printf("\nGenerating key-pair -------------------------------------------------------\n"); SuccessOrQuit(keyPair.Generate()); DumpBuffer("KeyPair", keyPair.GetDerBytes(), keyPair.GetDerLength()); SuccessOrQuit(keyPair.GetPublicKey(publicKey)); DumpBuffer("PublicKey", publicKey.GetBytes(), Ecdsa::P256::PublicKey::kSize); printf("\nHash the message ----------------------------------------------------------\n"); sha256.Start(); sha256.Update(kMessage, sizeof(kMessage) - 1); sha256.Finish(hash); DumpBuffer("Hash", hash.GetBytes(), sizeof(hash)); printf("\nSign the message ----------------------------------------------------------\n"); SuccessOrQuit(keyPair.Sign(hash, signature)); DumpBuffer("Signature", signature.GetBytes(), sizeof(signature)); printf("\nVerify the signature ------------------------------------------------------\n"); SuccessOrQuit(publicKey.Verify(hash, signature)); printf("\nSignature was verified successfully."); sha256.Start(); sha256.Update(kMessage, sizeof(kMessage)); // include null char sha256.Finish(hash); VerifyOrQuit(publicKey.Verify(hash, signature) != kErrorNone, "PublicKey::Verify() passed for invalid signature"); printf("\nSignature verification correctly failed with incorrect hash/signature.\n\n"); testFreeInstance(instance); } } // namespace Crypto } // namespace ot #endif // OPENTHREAD_CONFIG_ECDSA_ENABLE int main(void) { #if OPENTHREAD_CONFIG_ECDSA_ENABLE ot::Crypto::TestEcdsaVector(); ot::Crypto::TestEcdsaKeyGenerationSignAndVerify(); printf("All tests passed\n"); #else printf("ECDSA feature is not enabled\n"); #endif return 0; }