mirror of
https://github.com/taigrr/arduinolibs
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242 lines
8.1 KiB
C++
242 lines
8.1 KiB
C++
/*
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* Copyright (C) 2015 Southern Storm Software, Pty Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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This example runs tests on the Ed25519 algorithm.
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*/
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#include <Crypto.h>
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#include <Ed25519.h>
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#include <RNG.h>
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#include <utility/ProgMemUtil.h>
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#include <string.h>
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struct TestVector
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{
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const char *name;
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uint8_t privateKey[32];
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uint8_t publicKey[32];
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uint8_t message[2];
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size_t len;
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uint8_t signature[64];
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};
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// Test vectors for Ed25519 from:
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// https://tools.ietf.org/id/draft-josefsson-eddsa-ed25519-02.txt
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static TestVector const testVectorEd25519_1 PROGMEM = {
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.name = "Ed25519 #1",
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.privateKey = {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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.publicKey = {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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.message = {0x00, 0x00},
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.len = 0,
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.signature = {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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static TestVector const testVectorEd25519_2 PROGMEM = {
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.name = "Ed25519 #2",
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.privateKey = {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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.publicKey = {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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.message = {0x72, 0x00},
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.len = 1,
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.signature = {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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static TestVector testVector;
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void printNumber(const char *name, const uint8_t *x, uint8_t len)
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{
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static const char hexchars[] = "0123456789ABCDEF";
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Serial.print(name);
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Serial.print(" = ");
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for (uint8_t posn = 0; posn < len; ++posn) {
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Serial.print(hexchars[(x[posn] >> 4) & 0x0F]);
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Serial.print(hexchars[x[posn] & 0x0F]);
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}
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Serial.println();
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}
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void testFixedVectors(const struct TestVector *test)
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{
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// Copy the test vector out of program memory.
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memcpy_P(&testVector, test, sizeof(TestVector));
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test = &testVector;
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// Sign using the test vector.
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uint8_t signature[64];
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Serial.print(test->name);
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Serial.print(" sign ... ");
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Serial.flush();
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unsigned long start = micros();
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Ed25519::sign(signature, test->privateKey, test->publicKey,
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test->message, test->len);
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unsigned long elapsed = micros() - start;
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if (memcmp(signature, test->signature, 64) == 0) {
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Serial.print("ok");
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} else {
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Serial.println("failed");
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printNumber("actual ", signature, 64);
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printNumber("expected", test->signature, 64);
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}
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Serial.print(" (elapsed ");
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Serial.print(elapsed);
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Serial.println(" us)");
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// Verify using the test vector.
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Serial.print(test->name);
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Serial.print(" verify ... ");
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Serial.flush();
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start = micros();
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bool verified = Ed25519::verify(signature, test->publicKey, test->message, test->len);
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elapsed = micros() - start;
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if (verified) {
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Serial.print("ok");
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} else {
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Serial.println("failed");
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}
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Serial.print(" (elapsed ");
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Serial.print(elapsed);
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Serial.println(" us)");
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// Check derivation of the public key from the private key.
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Serial.print(test->name);
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Serial.print(" derive public key ... ");
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Serial.flush();
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start = micros();
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Ed25519::derivePublicKey(signature, test->privateKey);
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elapsed = micros() - start;
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if (memcmp(signature, test->publicKey, 32) == 0) {
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Serial.print("ok");
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} else {
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Serial.println("failed");
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printNumber("actual ", signature, 32);
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printNumber("expected", test->publicKey, 32);
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}
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Serial.print(" (elapsed ");
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Serial.print(elapsed);
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Serial.println(" us)");
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}
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void testFixedVectors()
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{
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//Serial.println("Fixed test vectors:");
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testFixedVectors(&testVectorEd25519_1);
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testFixedVectors(&testVectorEd25519_2);
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}
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/*
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void testDH()
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{
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static uint8_t alice_k[32];
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static uint8_t alice_f[32];
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static uint8_t bob_k[32];
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static uint8_t bob_f[32];
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Serial.println("Diffie-Hellman key exchange:");
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Serial.print("Generate random k/f for Alice ... ");
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Serial.flush();
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unsigned long start = micros();
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Curve25519::dh1(alice_k, alice_f);
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unsigned long elapsed = micros() - start;
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Serial.print("elapsed ");
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Serial.print(elapsed);
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Serial.println(" us");
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Serial.print("Generate random k/f for Bob ... ");
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Serial.flush();
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start = micros();
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Curve25519::dh1(bob_k, bob_f);
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elapsed = micros() - start;
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Serial.print("elapsed ");
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Serial.print(elapsed);
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Serial.println(" us");
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Serial.print("Generate shared secret for Alice ... ");
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Serial.flush();
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start = micros();
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Curve25519::dh2(bob_k, alice_f);
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elapsed = micros() - start;
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Serial.print("elapsed ");
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Serial.print(elapsed);
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Serial.println(" us");
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Serial.print("Generate shared secret for Bob ... ");
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Serial.flush();
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start = micros();
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Curve25519::dh2(alice_k, bob_f);
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elapsed = micros() - start;
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Serial.print("elapsed ");
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Serial.print(elapsed);
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Serial.println(" us");
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Serial.print("Check that the shared secrets match ... ");
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if (memcmp(alice_k, bob_k, 32) == 0)
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Serial.println("ok");
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else
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Serial.println("failed");
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}
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*/
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void setup()
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{
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Serial.begin(9600);
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// Start the random number generator. We don't initialise a noise
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// source here because we don't need one for testing purposes.
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// Real applications should of course use a proper noise source.
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RNG.begin("TestEd25519 1.0", 500);
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// Perform the tests.
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testFixedVectors();
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Serial.println();
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//testDH();
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//Serial.println();
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}
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void loop()
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{
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}
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