1 /* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 2 * Use of this source code is governed by a BSD-style license that can be 3 * found in the LICENSE file. 4 */ 5 6 7 #include <stdint.h> 8 #include <stdio.h> 9 10 #include "cryptolib.h" 11 #include "file_keys.h" 12 #include "rsa_padding_test.h" 13 #include "test_common.h" 14 #include "utility.h" 15 16 /* Test valid and invalid signatures */ 17 static void TestSignatures(RSAPublicKey* key) { 18 int unexpected_success; 19 int i; 20 21 /* The first test signature is valid. */ 22 TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 0, 23 test_message_sha1_hash), 1, "RSA Padding Test valid sig"); 24 25 /* All other signatures should fail verification. */ 26 unexpected_success = 0; 27 for (i = 1; i < sizeof(signatures) / sizeof(signatures[0]); i++) { 28 if (RSAVerify(key, signatures[i], RSA1024NUMBYTES, 0, 29 test_message_sha1_hash)) { 30 fprintf(stderr, "RSA Padding Test vector %d FAILED!\n", i); 31 unexpected_success++; 32 } 33 } 34 TEST_EQ(unexpected_success, 0, "RSA Padding Test invalid sigs"); 35 36 } 37 38 39 /* Test other error conditions in RSAVerify() */ 40 static void TestRSAVerify(RSAPublicKey* key) { 41 uint8_t sig[RSA1024NUMBYTES]; 42 43 TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 0, 44 test_message_sha1_hash), 1, "RSAVerify() good"); 45 TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES - 1, 0, 46 test_message_sha1_hash), 0, "RSAVerify() sig len"); 47 TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, kNumAlgorithms, 48 test_message_sha1_hash), 0, "RSAVerify() invalid alg"); 49 TEST_EQ(RSAVerify(key, signatures[0], RSA1024NUMBYTES, 3, 50 test_message_sha1_hash), 0, "RSAVerify() wrong alg"); 51 52 /* Corrupt the signature near start and end */ 53 Memcpy(sig, signatures[0], RSA1024NUMBYTES); 54 sig[3] ^= 0x42; 55 TEST_EQ(RSAVerify(key, sig, RSA1024NUMBYTES, 0, test_message_sha1_hash), 0, 56 "RSAVerify() bad sig"); 57 58 Memcpy(sig, signatures[0], RSA1024NUMBYTES); 59 sig[RSA1024NUMBYTES - 3] ^= 0x56; 60 TEST_EQ(RSAVerify(key, sig, RSA1024NUMBYTES, 0, test_message_sha1_hash), 0, 61 "RSAVerify() bad sig end"); 62 } 63 64 65 int main(int argc, char* argv[]) { 66 int error = 0; 67 RSAPublicKey* key; 68 69 /* Read test key */ 70 if (argc != 2) { 71 fprintf(stderr, "Usage: %s <test public key>\n", argv[0]); 72 return 1; 73 } 74 key = RSAPublicKeyFromFile(argv[1]); 75 if (!key) { 76 fprintf(stderr, "Couldn't read RSA public key for the test.\n"); 77 return 1; 78 } 79 80 /* Run tests */ 81 TestSignatures(key); 82 TestRSAVerify(key); 83 84 /* Clean up and exit */ 85 RSAPublicKeyFree(key); 86 87 if (!gTestSuccess) 88 error = 255; 89 90 return error; 91 } 92
