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/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdio.h>
#include "cryptolib.h"
#include "file_keys.h"
#include "rsa_padding_test.h"
#include "test_common.h"
#include "utility.h"
/* Test valid and invalid signatures */
static void TestSignatures(RSAPublicKey* key) {
int unexpected_success;
int i;
/* The first test signature is valid. */
TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 0,
test_message_sha1_hash), 1, "RSA Padding Test valid sig");
/* All other signatures should fail verification. */
unexpected_success = 0;
for (i = 1; i < sizeof(signatures) / sizeof(signatures[0]); i++) {
if (RSAVerify(key, signatures[i], RSA1024NUMBYTES, 0,
test_message_sha1_hash)) {
fprintf(stderr, "RSA Padding Test vector %d FAILED!\n", i);
unexpected_success++;
}
}
TEST_EQ(unexpected_success, 0, "RSA Padding Test invalid sigs");
}
/* Test other error conditions in RSAVerify() */
static void TestRSAVerify(RSAPublicKey* key) {
uint8_t sig[RSA1024NUMBYTES];
TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 0,
test_message_sha1_hash), 1, "RSAVerify() good");
TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES - 1, 0,
test_message_sha1_hash), 0, "RSAVerify() sig len");
TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, kNumAlgorithms + 1,
test_message_sha1_hash), 0, "RSAVerify() invalid alg");
TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 3,
test_message_sha1_hash), 0, "RSAVerify() wrong key");
/* Corrupt the signature near start and end */
Memcpy(sig, signatures[0], RSA1024NUMBYTES);
sig[3] ^= 0x42;
TEST_EQ(RSAVerify(key, sig, RSA1024NUMBYTES, 0, test_message_sha1_hash), 0,
"RSAVerify() bad sig");
Memcpy(sig, signatures[0], RSA1024NUMBYTES);
sig[RSA1024NUMBYTES - 3] ^= 0x56;
TEST_EQ(RSAVerify(key, sig, RSA1024NUMBYTES, 0, test_message_sha1_hash), 0,
"RSAVerify() bad sig end");
}
int main(int argc, char* argv[]) {
int error = 0;
RSAPublicKey* key;
/* Read test key */
if (argc != 2) {
fprintf(stderr, "Usage: %s <test public key>\n", argv[0]);
return 1;
}
key = RSAPublicKeyFromFile(argv[1]);
if (!key) {
fprintf(stderr, "Couldn't read RSA public key for the test.\n");
return 1;
}
/* Run tests */
TestSignatures(key);
TestRSAVerify(key);
/* Clean up and exit */
RSAPublicKeyFree(key);
if (!gTestSuccess)
error = 255;
return error;
}
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