| /* | 
 |  *  Copyright 2011 The WebRTC Project Authors. All rights reserved. | 
 |  * | 
 |  *  Use of this source code is governed by a BSD-style license | 
 |  *  that can be found in the LICENSE file in the root of the source | 
 |  *  tree. An additional intellectual property rights grant can be found | 
 |  *  in the file PATENTS.  All contributing project authors may | 
 |  *  be found in the AUTHORS file in the root of the source tree. | 
 |  */ | 
 |  | 
 | #include <string.h> | 
 | #include <memory> | 
 | #include <string> | 
 | #include <vector> | 
 |  | 
 | #include "absl/strings/str_replace.h" | 
 | #include "rtc_base/checks.h" | 
 | #include "rtc_base/fake_ssl_identity.h" | 
 | #include "rtc_base/helpers.h" | 
 | #include "rtc_base/logging.h" | 
 | #include "rtc_base/message_digest.h" | 
 | #include "rtc_base/ssl_fingerprint.h" | 
 | #include "rtc_base/ssl_identity.h" | 
 | #include "test/gtest.h" | 
 |  | 
 | using rtc::SSLIdentity; | 
 |  | 
 | const char kTestCertificate[] = | 
 |     "-----BEGIN CERTIFICATE-----\n" | 
 |     "MIIB6TCCAVICAQYwDQYJKoZIhvcNAQEEBQAwWzELMAkGA1UEBhMCQVUxEzARBgNV\n" | 
 |     "BAgTClF1ZWVuc2xhbmQxGjAYBgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRswGQYD\n" | 
 |     "VQQDExJUZXN0IENBICgxMDI0IGJpdCkwHhcNMDAxMDE2MjIzMTAzWhcNMDMwMTE0\n" | 
 |     "MjIzMTAzWjBjMQswCQYDVQQGEwJBVTETMBEGA1UECBMKUXVlZW5zbGFuZDEaMBgG\n" | 
 |     "A1UEChMRQ3J5cHRTb2Z0IFB0eSBMdGQxIzAhBgNVBAMTGlNlcnZlciB0ZXN0IGNl\n" | 
 |     "cnQgKDUxMiBiaXQpMFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJ+zw4Qnlf8SMVIP\n" | 
 |     "Fe9GEcStgOY2Ww/dgNdhjeD8ckUJNP5VZkVDTGiXav6ooKXfX3j/7tdkuD8Ey2//\n" | 
 |     "Kv7+ue0CAwEAATANBgkqhkiG9w0BAQQFAAOBgQCT0grFQeZaqYb5EYfk20XixZV4\n" | 
 |     "GmyAbXMftG1Eo7qGiMhYzRwGNWxEYojf5PZkYZXvSqZ/ZXHXa4g59jK/rJNnaVGM\n" | 
 |     "k+xIX8mxQvlV0n5O9PIha5BX5teZnkHKgL8aKKLKW1BK7YTngsfSzzaeame5iKfz\n" | 
 |     "itAE+OjGF+PFKbwX8Q==\n" | 
 |     "-----END CERTIFICATE-----\n"; | 
 |  | 
 | const unsigned char kTestCertSha1[] = {0xA6, 0xC8, 0x59, 0xEA, 0xC3, 0x7E, 0x6D, | 
 |                                        0x33, 0xCF, 0xE2, 0x69, 0x9D, 0x74, 0xE6, | 
 |                                        0xF6, 0x8A, 0x9E, 0x47, 0xA7, 0xCA}; | 
 | const unsigned char kTestCertSha224[] = { | 
 |     0xd4, 0xce, 0xc6, 0xcf, 0x28, 0xcb, 0xe9, 0x77, 0x38, 0x36, | 
 |     0xcf, 0xb1, 0x3b, 0x4a, 0xd7, 0xbd, 0xae, 0x24, 0x21, 0x08, | 
 |     0xcf, 0x6a, 0x44, 0x0d, 0x3f, 0x94, 0x2a, 0x5b}; | 
 | const unsigned char kTestCertSha256[] = { | 
 |     0x41, 0x6b, 0xb4, 0x93, 0x47, 0x79, 0x77, 0x24, 0x77, 0x0b, 0x8b, | 
 |     0x2e, 0xa6, 0x2b, 0xe0, 0xf9, 0x0a, 0xed, 0x1f, 0x31, 0xa6, 0xf7, | 
 |     0x5c, 0xa1, 0x5a, 0xc4, 0xb0, 0xa2, 0xa4, 0x78, 0xb9, 0x76}; | 
 | const unsigned char kTestCertSha384[] = { | 
 |     0x42, 0x31, 0x9a, 0x79, 0x1d, 0xd6, 0x08, 0xbf, 0x3b, 0xba, 0x36, 0xd8, | 
 |     0x37, 0x4a, 0x9a, 0x75, 0xd3, 0x25, 0x6e, 0x28, 0x92, 0xbe, 0x06, 0xb7, | 
 |     0xc5, 0xa0, 0x83, 0xe3, 0x86, 0xb1, 0x03, 0xfc, 0x64, 0x47, 0xd6, 0xd8, | 
 |     0xaa, 0xd9, 0x36, 0x60, 0x04, 0xcc, 0xbe, 0x7d, 0x6a, 0xe8, 0x34, 0x49}; | 
 | const unsigned char kTestCertSha512[] = { | 
 |     0x51, 0x1d, 0xec, 0x02, 0x3d, 0x51, 0x45, 0xd3, 0xd8, 0x1d, 0xa4, | 
 |     0x9d, 0x43, 0xc9, 0xee, 0x32, 0x6f, 0x4f, 0x37, 0xee, 0xab, 0x3f, | 
 |     0x25, 0xdf, 0x72, 0xfc, 0x61, 0x1a, 0xd5, 0x92, 0xff, 0x6b, 0x28, | 
 |     0x71, 0x58, 0xb3, 0xe1, 0x8a, 0x18, 0xcf, 0x61, 0x33, 0x0e, 0x14, | 
 |     0xc3, 0x04, 0xaa, 0x07, 0xf6, 0xa5, 0xda, 0xdc, 0x42, 0x42, 0x22, | 
 |     0x35, 0xce, 0x26, 0x58, 0x4a, 0x33, 0x6d, 0xbc, 0xb6}; | 
 |  | 
 | // These PEM strings were created by generating an identity with | 
 | // |SSLIdentity::Generate| and invoking |identity->PrivateKeyToPEMString()|, | 
 | // |identity->PublicKeyToPEMString()| and | 
 | // |identity->certificate().ToPEMString()|. If the crypto library is updated, | 
 | // and the update changes the string form of the keys, these will have to be | 
 | // updated too.  The fingerprint, fingerprint algorithm and base64 certificate | 
 | // were created by calling |identity->certificate().GetStats()|. | 
 | static const char kRSA_PRIVATE_KEY_PEM[] = | 
 |     "-----BEGIN PRIVATE KEY-----\n" | 
 |     "MIICdQIBADANBgkqhkiG9w0BAQEFAASCAl8wggJbAgEAAoGBAMQPqDStRlYeDpkX\n" | 
 |     "erRmv+a1naM8vSVSY0gG2plnrnofViWRW3MRqWC+020MsIj3hPZeSAnt/y/FL/nr\n" | 
 |     "4Ea7NXcwdRo1/1xEK7U/f/cjSg1aunyvHCHwcFcMr31HLFvHr0ZgcFwbgIuFLNEl\n" | 
 |     "7kK5HMO9APz1ntUjek8BmBj8yMl9AgMBAAECgYA8FWBC5GcNtSBcIinkZyigF0A7\n" | 
 |     "6j081sa+J/uNz4xUuI257ZXM6biygUhhvuXK06/XoIULJfhyN0fAm1yb0HtNhiUs\n" | 
 |     "kMOYeon6b8FqFaPjrQf7Gr9FMiIHXNK19uegTMKztXyPZoUWlX84X0iawY95x0Y3\n" | 
 |     "73f6P2rN2UOjlVVjAQJBAOKy3l2w3Zj2w0oAJox0eMwl+RxBNt1C42SHrob2mFUT\n" | 
 |     "rytpVVYOasr8CoDI0kjacjI94sLum+buJoXXX6YTGO0CQQDdZwlYIEkoS3ftfxPa\n" | 
 |     "Ai0YTBzAWvHJg0r8Gk/TkHo6IM+LSsZ9ZYUv/vBe4BKLw1I4hZ+bQvBiq+f8ROtk\n" | 
 |     "+TDRAkAPL3ghwoU1h+IRBO2QHwUwd6K2N9AbBi4BP+168O3HVSg4ujeTKigRLMzv\n" | 
 |     "T4R2iNt5bhfQgvdCgtVlxcWMdF8JAkBwDCg3eEdt5BuyjwBt8XH+/O4ED0KUWCTH\n" | 
 |     "x00k5dZlupsuhE5Fwe4QpzXg3gekwdnHjyCCQ/NCDHvgOMTkmhQxAkA9V03KRX9b\n" | 
 |     "bhvEzY/fu8gEp+EzsER96/D79az5z1BaMGL5OPM2xHBPJATKlswnAa7Lp3QKGZGk\n" | 
 |     "TxslfL18J71s\n" | 
 |     "-----END PRIVATE KEY-----\n"; | 
 | static const char kRSA_PUBLIC_KEY_PEM[] = | 
 |     "-----BEGIN PUBLIC KEY-----\n" | 
 |     "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDED6g0rUZWHg6ZF3q0Zr/mtZ2j\n" | 
 |     "PL0lUmNIBtqZZ656H1YlkVtzEalgvtNtDLCI94T2XkgJ7f8vxS/56+BGuzV3MHUa\n" | 
 |     "Nf9cRCu1P3/3I0oNWrp8rxwh8HBXDK99Ryxbx69GYHBcG4CLhSzRJe5CuRzDvQD8\n" | 
 |     "9Z7VI3pPAZgY/MjJfQIDAQAB\n" | 
 |     "-----END PUBLIC KEY-----\n"; | 
 | static const char kRSA_CERT_PEM[] = | 
 |     "-----BEGIN CERTIFICATE-----\n" | 
 |     "MIIBnDCCAQWgAwIBAgIJAOEHLgeWYwrpMA0GCSqGSIb3DQEBCwUAMBAxDjAMBgNV\n" | 
 |     "BAMMBXRlc3QxMB4XDTE2MDQyNDE4MTAyMloXDTE2MDUyNTE4MTAyMlowEDEOMAwG\n" | 
 |     "A1UEAwwFdGVzdDEwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMQPqDStRlYe\n" | 
 |     "DpkXerRmv+a1naM8vSVSY0gG2plnrnofViWRW3MRqWC+020MsIj3hPZeSAnt/y/F\n" | 
 |     "L/nr4Ea7NXcwdRo1/1xEK7U/f/cjSg1aunyvHCHwcFcMr31HLFvHr0ZgcFwbgIuF\n" | 
 |     "LNEl7kK5HMO9APz1ntUjek8BmBj8yMl9AgMBAAEwDQYJKoZIhvcNAQELBQADgYEA\n" | 
 |     "C3ehaZFl+oEYN069C2ht/gMzuC77L854RF/x7xRtNZzkcg9TVgXXdM3auUvJi8dx\n" | 
 |     "yTpU3ixErjQvoZew5ngXTEvTY8BSQUijJEaLWh8n6NDKRbEGTdAk8nPAmq9hdCFq\n" | 
 |     "e3UkexqNHm3g/VxG4NUC1Y+w29ai0/Rgh+VvgbDwK+Q=\n" | 
 |     "-----END CERTIFICATE-----\n"; | 
 | static const char kRSA_FINGERPRINT[] = | 
 |     "3C:E8:B2:70:09:CF:A9:09:5A:F4:EF:8F:8D:8A:32:FF:EA:04:91:BA:6E:D4:17:78:16" | 
 |     ":2A:EE:F9:9A:DD:E2:2B"; | 
 | static const char kRSA_FINGERPRINT_ALGORITHM[] = "sha-256"; | 
 | static const char kRSA_BASE64_CERTIFICATE[] = | 
 |     "MIIBnDCCAQWgAwIBAgIJAOEHLgeWYwrpMA0GCSqGSIb3DQEBCwUAMBAxDjAMBgNVBAMMBXRlc3" | 
 |     "QxMB4XDTE2MDQyNDE4MTAyMloXDTE2MDUyNTE4MTAyMlowEDEOMAwGA1UEAwwFdGVzdDEwgZ8w" | 
 |     "DQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMQPqDStRlYeDpkXerRmv+a1naM8vSVSY0gG2plnrn" | 
 |     "ofViWRW3MRqWC+020MsIj3hPZeSAnt/y/FL/nr4Ea7NXcwdRo1/1xEK7U/f/cjSg1aunyvHCHw" | 
 |     "cFcMr31HLFvHr0ZgcFwbgIuFLNEl7kK5HMO9APz1ntUjek8BmBj8yMl9AgMBAAEwDQYJKoZIhv" | 
 |     "cNAQELBQADgYEAC3ehaZFl+oEYN069C2ht/gMzuC77L854RF/x7xRtNZzkcg9TVgXXdM3auUvJ" | 
 |     "i8dxyTpU3ixErjQvoZew5ngXTEvTY8BSQUijJEaLWh8n6NDKRbEGTdAk8nPAmq9hdCFqe3Ukex" | 
 |     "qNHm3g/VxG4NUC1Y+w29ai0/Rgh+VvgbDwK+Q="; | 
 |  | 
 | static const char kECDSA_PRIVATE_KEY_PEM[] = | 
 |     "-----BEGIN PRIVATE KEY-----\n" | 
 |     "MIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg/AkEA2hklq7dQ2rN\n" | 
 |     "ZxYL6hOUACL4pn7P4FYlA3ZQhIChRANCAAR7YgdO3utP/8IqVRq8G4VZKreMAxeN\n" | 
 |     "rUa12twthv4uFjuHAHa9D9oyAjncmn+xvZZRyVmKrA56jRzENcEEHoAg\n" | 
 |     "-----END PRIVATE KEY-----\n"; | 
 | static const char kECDSA_PUBLIC_KEY_PEM[] = | 
 |     "-----BEGIN PUBLIC KEY-----\n" | 
 |     "MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEe2IHTt7rT//CKlUavBuFWSq3jAMX\n" | 
 |     "ja1GtdrcLYb+LhY7hwB2vQ/aMgI53Jp/sb2WUclZiqwOeo0cxDXBBB6AIA==\n" | 
 |     "-----END PUBLIC KEY-----\n"; | 
 | static const char kECDSA_CERT_PEM[] = | 
 |     "-----BEGIN CERTIFICATE-----\n" | 
 |     "MIIBFDCBu6ADAgECAgkArpkxjw62sW4wCgYIKoZIzj0EAwIwEDEOMAwGA1UEAwwF\n" | 
 |     "dGVzdDMwHhcNMTYwNDI0MTgxNDM4WhcNMTYwNTI1MTgxNDM4WjAQMQ4wDAYDVQQD\n" | 
 |     "DAV0ZXN0MzBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABHtiB07e60//wipVGrwb\n" | 
 |     "hVkqt4wDF42tRrXa3C2G/i4WO4cAdr0P2jICOdyaf7G9llHJWYqsDnqNHMQ1wQQe\n" | 
 |     "gCAwCgYIKoZIzj0EAwIDSAAwRQIhANyreQ/K5yuPPpirsd0e/4WGLHou6bIOSQks\n" | 
 |     "DYzo56NmAiAKOr3u8ol3LmygbUCwEvtWrS8QcJDygxHPACo99hkekw==\n" | 
 |     "-----END CERTIFICATE-----\n"; | 
 | static const char kECDSA_FINGERPRINT[] = | 
 |     "9F:47:FA:88:76:3D:18:B8:00:A0:59:9D:C3:5D:34:0B:1F:B8:99:9E:68:DA:F3:A5:DA" | 
 |     ":50:33:A9:FF:4D:31:89"; | 
 | static const char kECDSA_FINGERPRINT_ALGORITHM[] = "sha-256"; | 
 | static const char kECDSA_BASE64_CERTIFICATE[] = | 
 |     "MIIBFDCBu6ADAgECAgkArpkxjw62sW4wCgYIKoZIzj0EAwIwEDEOMAwGA1UEAwwFdGVzdDMwHh" | 
 |     "cNMTYwNDI0MTgxNDM4WhcNMTYwNTI1MTgxNDM4WjAQMQ4wDAYDVQQDDAV0ZXN0MzBZMBMGByqG" | 
 |     "SM49AgEGCCqGSM49AwEHA0IABHtiB07e60//wipVGrwbhVkqt4wDF42tRrXa3C2G/i4WO4cAdr" | 
 |     "0P2jICOdyaf7G9llHJWYqsDnqNHMQ1wQQegCAwCgYIKoZIzj0EAwIDSAAwRQIhANyreQ/K5yuP" | 
 |     "Ppirsd0e/4WGLHou6bIOSQksDYzo56NmAiAKOr3u8ol3LmygbUCwEvtWrS8QcJDygxHPACo99h" | 
 |     "kekw=="; | 
 |  | 
 | struct IdentityAndInfo { | 
 |   std::unique_ptr<rtc::SSLIdentity> identity; | 
 |   std::vector<std::string> ders; | 
 |   std::vector<std::string> pems; | 
 |   std::vector<std::string> fingerprints; | 
 | }; | 
 |  | 
 | IdentityAndInfo CreateFakeIdentityAndInfoFromDers( | 
 |     const std::vector<std::string>& ders) { | 
 |   RTC_CHECK(!ders.empty()); | 
 |   IdentityAndInfo info; | 
 |   info.ders = ders; | 
 |   for (const std::string& der : ders) { | 
 |     info.pems.push_back(rtc::SSLIdentity::DerToPem( | 
 |         "CERTIFICATE", reinterpret_cast<const unsigned char*>(der.c_str()), | 
 |         der.length())); | 
 |   } | 
 |   info.identity.reset(new rtc::FakeSSLIdentity(info.pems)); | 
 |   // Strip header/footer and newline characters of PEM strings. | 
 |   for (size_t i = 0; i < info.pems.size(); ++i) { | 
 |     absl::StrReplaceAll({{"-----BEGIN CERTIFICATE-----", ""}, | 
 |                          {"-----END CERTIFICATE-----", ""}, | 
 |                          {"\n", ""}}, | 
 |                         &info.pems[i]); | 
 |   } | 
 |   // Fingerprints for the whole certificate chain, starting with leaf | 
 |   // certificate. | 
 |   const rtc::SSLCertChain& chain = info.identity->cert_chain(); | 
 |   std::unique_ptr<rtc::SSLFingerprint> fp; | 
 |   for (size_t i = 0; i < chain.GetSize(); i++) { | 
 |     fp = rtc::SSLFingerprint::Create("sha-1", chain.Get(i)); | 
 |     EXPECT_TRUE(fp); | 
 |     info.fingerprints.push_back(fp->GetRfc4572Fingerprint()); | 
 |   } | 
 |   EXPECT_EQ(info.ders.size(), info.fingerprints.size()); | 
 |   return info; | 
 | } | 
 |  | 
 | class SSLIdentityTest : public ::testing::Test { | 
 |  public: | 
 |   void SetUp() override { | 
 |     identity_rsa1_.reset(SSLIdentity::Generate("test1", rtc::KT_RSA)); | 
 |     identity_rsa2_.reset(SSLIdentity::Generate("test2", rtc::KT_RSA)); | 
 |     identity_ecdsa1_.reset(SSLIdentity::Generate("test3", rtc::KT_ECDSA)); | 
 |     identity_ecdsa2_.reset(SSLIdentity::Generate("test4", rtc::KT_ECDSA)); | 
 |  | 
 |     ASSERT_TRUE(identity_rsa1_); | 
 |     ASSERT_TRUE(identity_rsa2_); | 
 |     ASSERT_TRUE(identity_ecdsa1_); | 
 |     ASSERT_TRUE(identity_ecdsa2_); | 
 |  | 
 |     test_cert_ = rtc::SSLCertificate::FromPEMString(kTestCertificate); | 
 |     ASSERT_TRUE(test_cert_); | 
 |   } | 
 |  | 
 |   void TestGetSignatureDigestAlgorithm() { | 
 |     std::string digest_algorithm; | 
 |  | 
 |     ASSERT_TRUE(identity_rsa1_->certificate().GetSignatureDigestAlgorithm( | 
 |         &digest_algorithm)); | 
 |     ASSERT_EQ(rtc::DIGEST_SHA_256, digest_algorithm); | 
 |  | 
 |     ASSERT_TRUE(identity_rsa2_->certificate().GetSignatureDigestAlgorithm( | 
 |         &digest_algorithm)); | 
 |     ASSERT_EQ(rtc::DIGEST_SHA_256, digest_algorithm); | 
 |  | 
 |     ASSERT_TRUE(identity_ecdsa1_->certificate().GetSignatureDigestAlgorithm( | 
 |         &digest_algorithm)); | 
 |     ASSERT_EQ(rtc::DIGEST_SHA_256, digest_algorithm); | 
 |  | 
 |     ASSERT_TRUE(identity_ecdsa2_->certificate().GetSignatureDigestAlgorithm( | 
 |         &digest_algorithm)); | 
 |     ASSERT_EQ(rtc::DIGEST_SHA_256, digest_algorithm); | 
 |  | 
 |     // The test certificate has an MD5-based signature. | 
 |     ASSERT_TRUE(test_cert_->GetSignatureDigestAlgorithm(&digest_algorithm)); | 
 |     ASSERT_EQ(rtc::DIGEST_MD5, digest_algorithm); | 
 |   } | 
 |  | 
 |   typedef unsigned char DigestType[rtc::MessageDigest::kMaxSize]; | 
 |  | 
 |   void TestDigestHelper(DigestType digest, | 
 |                         const SSLIdentity* identity, | 
 |                         const std::string& algorithm, | 
 |                         size_t expected_len) { | 
 |     DigestType digest1; | 
 |     size_t digest_len; | 
 |     bool rv; | 
 |  | 
 |     memset(digest, 0, expected_len); | 
 |     rv = identity->certificate().ComputeDigest(algorithm, digest, | 
 |                                                sizeof(DigestType), &digest_len); | 
 |     EXPECT_TRUE(rv); | 
 |     EXPECT_EQ(expected_len, digest_len); | 
 |  | 
 |     // Repeat digest computation for the identity as a sanity check. | 
 |     memset(digest1, 0xff, expected_len); | 
 |     rv = identity->certificate().ComputeDigest(algorithm, digest1, | 
 |                                                sizeof(DigestType), &digest_len); | 
 |     EXPECT_TRUE(rv); | 
 |     EXPECT_EQ(expected_len, digest_len); | 
 |  | 
 |     EXPECT_EQ(0, memcmp(digest, digest1, expected_len)); | 
 |   } | 
 |  | 
 |   void TestDigestForGeneratedCert(const std::string& algorithm, | 
 |                                   size_t expected_len) { | 
 |     DigestType digest[4]; | 
 |  | 
 |     ASSERT_TRUE(expected_len <= sizeof(DigestType)); | 
 |  | 
 |     TestDigestHelper(digest[0], identity_rsa1_.get(), algorithm, expected_len); | 
 |     TestDigestHelper(digest[1], identity_rsa2_.get(), algorithm, expected_len); | 
 |     TestDigestHelper(digest[2], identity_ecdsa1_.get(), algorithm, | 
 |                      expected_len); | 
 |     TestDigestHelper(digest[3], identity_ecdsa2_.get(), algorithm, | 
 |                      expected_len); | 
 |  | 
 |     // Sanity check that all four digests are unique.  This could theoretically | 
 |     // fail, since cryptographic hash collisions have a non-zero probability. | 
 |     for (int i = 0; i < 4; i++) { | 
 |       for (int j = 0; j < 4; j++) { | 
 |         if (i != j) | 
 |           EXPECT_NE(0, memcmp(digest[i], digest[j], expected_len)); | 
 |       } | 
 |     } | 
 |   } | 
 |  | 
 |   void TestDigestForFixedCert(const std::string& algorithm, | 
 |                               size_t expected_len, | 
 |                               const unsigned char* expected_digest) { | 
 |     bool rv; | 
 |     DigestType digest; | 
 |     size_t digest_len; | 
 |  | 
 |     ASSERT_TRUE(expected_len <= sizeof(DigestType)); | 
 |  | 
 |     rv = test_cert_->ComputeDigest(algorithm, digest, sizeof(digest), | 
 |                                    &digest_len); | 
 |     EXPECT_TRUE(rv); | 
 |     EXPECT_EQ(expected_len, digest_len); | 
 |     EXPECT_EQ(0, memcmp(digest, expected_digest, expected_len)); | 
 |   } | 
 |  | 
 |   void TestCloningIdentity(const SSLIdentity& identity) { | 
 |     // Convert |identity| to PEM strings and create a new identity by converting | 
 |     // back from the string format. | 
 |     std::string priv_pem = identity.PrivateKeyToPEMString(); | 
 |     std::string publ_pem = identity.PublicKeyToPEMString(); | 
 |     std::string cert_pem = identity.certificate().ToPEMString(); | 
 |     std::unique_ptr<SSLIdentity> clone( | 
 |         SSLIdentity::FromPEMStrings(priv_pem, cert_pem)); | 
 |     EXPECT_TRUE(clone); | 
 |  | 
 |     // Make sure the clone is identical to the original. | 
 |     EXPECT_TRUE(identity == *clone); | 
 |     ASSERT_EQ(identity.certificate().CertificateExpirationTime(), | 
 |               clone->certificate().CertificateExpirationTime()); | 
 |  | 
 |     // At this point we are confident that the identities are identical. To be | 
 |     // extra sure, we compare PEM strings of the clone with the original. Note | 
 |     // that the PEM strings of two identities are not strictly guaranteed to be | 
 |     // equal (they describe structs whose members could be listed in a different | 
 |     // order, for example). But because the same function is used to produce | 
 |     // both PEMs, its a good enough bet that this comparison will work. If the | 
 |     // assumption stops holding in the future we can always remove this from the | 
 |     // unittest. | 
 |     std::string clone_priv_pem = clone->PrivateKeyToPEMString(); | 
 |     std::string clone_publ_pem = clone->PublicKeyToPEMString(); | 
 |     std::string clone_cert_pem = clone->certificate().ToPEMString(); | 
 |     ASSERT_EQ(priv_pem, clone_priv_pem); | 
 |     ASSERT_EQ(publ_pem, clone_publ_pem); | 
 |     ASSERT_EQ(cert_pem, clone_cert_pem); | 
 |   } | 
 |  | 
 |  protected: | 
 |   std::unique_ptr<SSLIdentity> identity_rsa1_; | 
 |   std::unique_ptr<SSLIdentity> identity_rsa2_; | 
 |   std::unique_ptr<SSLIdentity> identity_ecdsa1_; | 
 |   std::unique_ptr<SSLIdentity> identity_ecdsa2_; | 
 |   std::unique_ptr<rtc::SSLCertificate> test_cert_; | 
 | }; | 
 |  | 
 | TEST_F(SSLIdentityTest, FixedDigestSHA1) { | 
 |   TestDigestForFixedCert(rtc::DIGEST_SHA_1, 20, kTestCertSha1); | 
 | } | 
 |  | 
 | // HASH_AlgSHA224 is not supported in the chromium linux build. | 
 | TEST_F(SSLIdentityTest, FixedDigestSHA224) { | 
 |   TestDigestForFixedCert(rtc::DIGEST_SHA_224, 28, kTestCertSha224); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, FixedDigestSHA256) { | 
 |   TestDigestForFixedCert(rtc::DIGEST_SHA_256, 32, kTestCertSha256); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, FixedDigestSHA384) { | 
 |   TestDigestForFixedCert(rtc::DIGEST_SHA_384, 48, kTestCertSha384); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, FixedDigestSHA512) { | 
 |   TestDigestForFixedCert(rtc::DIGEST_SHA_512, 64, kTestCertSha512); | 
 | } | 
 |  | 
 | // HASH_AlgSHA224 is not supported in the chromium linux build. | 
 | TEST_F(SSLIdentityTest, DigestSHA224) { | 
 |   TestDigestForGeneratedCert(rtc::DIGEST_SHA_224, 28); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, DigestSHA256) { | 
 |   TestDigestForGeneratedCert(rtc::DIGEST_SHA_256, 32); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, DigestSHA384) { | 
 |   TestDigestForGeneratedCert(rtc::DIGEST_SHA_384, 48); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, DigestSHA512) { | 
 |   TestDigestForGeneratedCert(rtc::DIGEST_SHA_512, 64); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, IdentityComparison) { | 
 |   EXPECT_TRUE(*identity_rsa1_ == *identity_rsa1_); | 
 |   EXPECT_FALSE(*identity_rsa1_ == *identity_rsa2_); | 
 |   EXPECT_FALSE(*identity_rsa1_ == *identity_ecdsa1_); | 
 |   EXPECT_FALSE(*identity_rsa1_ == *identity_ecdsa2_); | 
 |  | 
 |   EXPECT_TRUE(*identity_rsa2_ == *identity_rsa2_); | 
 |   EXPECT_FALSE(*identity_rsa2_ == *identity_ecdsa1_); | 
 |   EXPECT_FALSE(*identity_rsa2_ == *identity_ecdsa2_); | 
 |  | 
 |   EXPECT_TRUE(*identity_ecdsa1_ == *identity_ecdsa1_); | 
 |   EXPECT_FALSE(*identity_ecdsa1_ == *identity_ecdsa2_); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, FromPEMStringsRSA) { | 
 |   std::unique_ptr<SSLIdentity> identity( | 
 |       SSLIdentity::FromPEMStrings(kRSA_PRIVATE_KEY_PEM, kRSA_CERT_PEM)); | 
 |   EXPECT_TRUE(identity); | 
 |   EXPECT_EQ(kRSA_PRIVATE_KEY_PEM, identity->PrivateKeyToPEMString()); | 
 |   EXPECT_EQ(kRSA_PUBLIC_KEY_PEM, identity->PublicKeyToPEMString()); | 
 |   EXPECT_EQ(kRSA_CERT_PEM, identity->certificate().ToPEMString()); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, FromPEMStringsEC) { | 
 |   std::unique_ptr<SSLIdentity> identity( | 
 |       SSLIdentity::FromPEMStrings(kECDSA_PRIVATE_KEY_PEM, kECDSA_CERT_PEM)); | 
 |   EXPECT_TRUE(identity); | 
 |   EXPECT_EQ(kECDSA_PRIVATE_KEY_PEM, identity->PrivateKeyToPEMString()); | 
 |   EXPECT_EQ(kECDSA_PUBLIC_KEY_PEM, identity->PublicKeyToPEMString()); | 
 |   EXPECT_EQ(kECDSA_CERT_PEM, identity->certificate().ToPEMString()); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, CloneIdentityRSA) { | 
 |   TestCloningIdentity(*identity_rsa1_); | 
 |   TestCloningIdentity(*identity_rsa2_); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, CloneIdentityECDSA) { | 
 |   TestCloningIdentity(*identity_ecdsa1_); | 
 |   TestCloningIdentity(*identity_ecdsa2_); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, PemDerConversion) { | 
 |   std::string der; | 
 |   EXPECT_TRUE(SSLIdentity::PemToDer("CERTIFICATE", kTestCertificate, &der)); | 
 |  | 
 |   EXPECT_EQ( | 
 |       kTestCertificate, | 
 |       SSLIdentity::DerToPem("CERTIFICATE", | 
 |                             reinterpret_cast<const unsigned char*>(der.data()), | 
 |                             der.length())); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, GetSignatureDigestAlgorithm) { | 
 |   TestGetSignatureDigestAlgorithm(); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, SSLCertificateGetStatsRSA) { | 
 |   std::unique_ptr<SSLIdentity> identity( | 
 |       SSLIdentity::FromPEMStrings(kRSA_PRIVATE_KEY_PEM, kRSA_CERT_PEM)); | 
 |   std::unique_ptr<rtc::SSLCertificateStats> stats = | 
 |       identity->certificate().GetStats(); | 
 |   EXPECT_EQ(stats->fingerprint, kRSA_FINGERPRINT); | 
 |   EXPECT_EQ(stats->fingerprint_algorithm, kRSA_FINGERPRINT_ALGORITHM); | 
 |   EXPECT_EQ(stats->base64_certificate, kRSA_BASE64_CERTIFICATE); | 
 |   EXPECT_FALSE(stats->issuer); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, SSLCertificateGetStatsECDSA) { | 
 |   std::unique_ptr<SSLIdentity> identity( | 
 |       SSLIdentity::FromPEMStrings(kECDSA_PRIVATE_KEY_PEM, kECDSA_CERT_PEM)); | 
 |   std::unique_ptr<rtc::SSLCertificateStats> stats = | 
 |       identity->certificate().GetStats(); | 
 |   EXPECT_EQ(stats->fingerprint, kECDSA_FINGERPRINT); | 
 |   EXPECT_EQ(stats->fingerprint_algorithm, kECDSA_FINGERPRINT_ALGORITHM); | 
 |   EXPECT_EQ(stats->base64_certificate, kECDSA_BASE64_CERTIFICATE); | 
 |   EXPECT_FALSE(stats->issuer); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityTest, SSLCertificateGetStatsWithChain) { | 
 |   std::vector<std::string> ders; | 
 |   ders.push_back("every der results in"); | 
 |   ders.push_back("an identity + certificate"); | 
 |   ders.push_back("in a certificate chain"); | 
 |   IdentityAndInfo info = CreateFakeIdentityAndInfoFromDers(ders); | 
 |   EXPECT_TRUE(info.identity); | 
 |   EXPECT_EQ(info.ders, ders); | 
 |   EXPECT_EQ(info.pems.size(), info.ders.size()); | 
 |   EXPECT_EQ(info.fingerprints.size(), info.ders.size()); | 
 |  | 
 |   std::unique_ptr<rtc::SSLCertificateStats> first_stats = | 
 |       info.identity->cert_chain().GetStats(); | 
 |   rtc::SSLCertificateStats* cert_stats = first_stats.get(); | 
 |   for (size_t i = 0; i < info.ders.size(); ++i) { | 
 |     EXPECT_EQ(cert_stats->fingerprint, info.fingerprints[i]); | 
 |     EXPECT_EQ(cert_stats->fingerprint_algorithm, "sha-1"); | 
 |     EXPECT_EQ(cert_stats->base64_certificate, info.pems[i]); | 
 |     cert_stats = cert_stats->issuer.get(); | 
 |     EXPECT_EQ(static_cast<bool>(cert_stats), i + 1 < info.ders.size()); | 
 |   } | 
 | } | 
 |  | 
 | class SSLIdentityExpirationTest : public ::testing::Test { | 
 |  public: | 
 |   SSLIdentityExpirationTest() { | 
 |     // Set use of the test RNG to get deterministic expiration timestamp. | 
 |     rtc::SetRandomTestMode(true); | 
 |   } | 
 |   ~SSLIdentityExpirationTest() override { | 
 |     // Put it back for the next test. | 
 |     rtc::SetRandomTestMode(false); | 
 |   } | 
 |  | 
 |   void TestASN1TimeToSec() { | 
 |     struct asn_example { | 
 |       const char* string; | 
 |       bool long_format; | 
 |       int64_t want; | 
 |     } static const data[] = { | 
 |         // clang-format off | 
 |         // clang formatting breaks this nice alignment | 
 |  | 
 |       // Valid examples. | 
 |       {"19700101000000Z",  true,  0}, | 
 |       {"700101000000Z",    false, 0}, | 
 |       {"19700101000001Z",  true,  1}, | 
 |       {"700101000001Z",    false, 1}, | 
 |       {"19700101000100Z",  true,  60}, | 
 |       {"19700101000101Z",  true,  61}, | 
 |       {"19700101010000Z",  true,  3600}, | 
 |       {"19700101010001Z",  true,  3601}, | 
 |       {"19700101010100Z",  true,  3660}, | 
 |       {"19700101010101Z",  true,  3661}, | 
 |       {"710911012345Z",    false, 53400225}, | 
 |       {"20000101000000Z",  true,  946684800}, | 
 |       {"20000101000000Z",  true,  946684800}, | 
 |       {"20151130140156Z",  true,  1448892116}, | 
 |       {"151130140156Z",    false, 1448892116}, | 
 |       {"20491231235959Z",  true,  2524607999}, | 
 |       {"491231235959Z",    false, 2524607999}, | 
 |       {"20500101000000Z",  true,  2524607999+1}, | 
 |       {"20700101000000Z",  true,  3155760000}, | 
 |       {"21000101000000Z",  true,  4102444800}, | 
 |       {"24000101000000Z",  true,  13569465600}, | 
 |  | 
 |       // Invalid examples. | 
 |       {"19700101000000",    true,  -1},  // missing Z long format | 
 |       {"19700101000000X",   true,  -1},  // X instead of Z long format | 
 |       {"197001010000000",   true,  -1},  // 0 instead of Z long format | 
 |       {"1970010100000000Z", true,  -1},  // excess digits long format | 
 |       {"700101000000",      false, -1},  // missing Z short format | 
 |       {"700101000000X",     false, -1},  // X instead of Z short format | 
 |       {"7001010000000",     false, -1},  // 0 instead of Z short format | 
 |       {"70010100000000Z",   false, -1},  // excess digits short format | 
 |       {":9700101000000Z",   true,  -1},  // invalid character | 
 |       {"1:700101000001Z",   true,  -1},  // invalid character | 
 |       {"19:00101000100Z",   true,  -1},  // invalid character | 
 |       {"197:0101000101Z",   true,  -1},  // invalid character | 
 |       {"1970:101010000Z",   true,  -1},  // invalid character | 
 |       {"19700:01010001Z",   true,  -1},  // invalid character | 
 |       {"197001:1010100Z",   true,  -1},  // invalid character | 
 |       {"1970010:010101Z",   true,  -1},  // invalid character | 
 |       {"70010100:000Z",     false, -1},  // invalid character | 
 |       {"700101000:01Z",     false, -1},  // invalid character | 
 |       {"2000010100:000Z",   true,  -1},  // invalid character | 
 |       {"21000101000:00Z",   true,  -1},  // invalid character | 
 |       {"240001010000:0Z",   true,  -1},  // invalid character | 
 |       {"500101000000Z",     false, -1},  // but too old for epoch | 
 |       {"691231235959Z",     false, -1},  // too old for epoch | 
 |       {"19611118043000Z",   false, -1},  // way too old for epoch | 
 |  | 
 |         // clang-format off | 
 |     }; | 
 |  | 
 |     unsigned char buf[20]; | 
 |  | 
 |     // Run all examples and check for the expected result. | 
 |     for (const auto& entry : data) { | 
 |       size_t length = strlen(entry.string); | 
 |       memcpy(buf, entry.string, length);    // Copy the ASN1 string... | 
 |       buf[length] = rtc::CreateRandomId();  // ...and terminate it with junk. | 
 |       int64_t res = rtc::ASN1TimeToSec(buf, length, entry.long_format); | 
 |       RTC_LOG(LS_VERBOSE) << entry.string; | 
 |       ASSERT_EQ(entry.want, res); | 
 |     } | 
 |     // Run all examples again, but with an invalid length. | 
 |     for (const auto& entry : data) { | 
 |       size_t length = strlen(entry.string); | 
 |       memcpy(buf, entry.string, length);    // Copy the ASN1 string... | 
 |       buf[length] = rtc::CreateRandomId();  // ...and terminate it with junk. | 
 |       int64_t res = rtc::ASN1TimeToSec(buf, length - 1, entry.long_format); | 
 |       RTC_LOG(LS_VERBOSE) << entry.string; | 
 |       ASSERT_EQ(-1, res); | 
 |     } | 
 |   } | 
 |  | 
 |   void TestExpireTime(int times) { | 
 |     // We test just ECDSA here since what we're out to exercise is the | 
 |     // interfaces for expiration setting and reading. | 
 |     for (int i = 0; i < times; i++) { | 
 |       // We limit the time to < 2^31 here, i.e., we stay before 2038, since else | 
 |       // we hit time offset limitations in OpenSSL on some 32-bit systems. | 
 |       time_t time_before_generation = time(nullptr); | 
 |       time_t lifetime = | 
 |           rtc::CreateRandomId() % (0x80000000 - time_before_generation); | 
 |       rtc::KeyParams key_params = rtc::KeyParams::ECDSA(rtc::EC_NIST_P256); | 
 |       SSLIdentity* identity = | 
 |           rtc::SSLIdentity::GenerateWithExpiration("", key_params, lifetime); | 
 |       time_t time_after_generation = time(nullptr); | 
 |       EXPECT_LE(time_before_generation + lifetime, | 
 |                 identity->certificate().CertificateExpirationTime()); | 
 |       EXPECT_GE(time_after_generation + lifetime, | 
 |                 identity->certificate().CertificateExpirationTime()); | 
 |       delete identity; | 
 |     } | 
 |   } | 
 | }; | 
 |  | 
 | TEST_F(SSLIdentityExpirationTest, TestASN1TimeToSec) { | 
 |   TestASN1TimeToSec(); | 
 | } | 
 |  | 
 | TEST_F(SSLIdentityExpirationTest, TestExpireTime) { | 
 |   TestExpireTime(500); | 
 | } |