net/quic/crypto/crypto_utils_test.cc

   1 // Copyright (c) 2013 The Chromium 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 #include "net/quic/crypto/crypto_utils.h"
   6
   7 #include "net/quic/test_tools/quic_test_utils.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace net {
  11 namespace test {
  12 namespace {
  13
  14 TEST(CryptoUtilsTest, IsValidSNI) {
  15   // IP as SNI.
  16   EXPECT_FALSE(CryptoUtils::IsValidSNI("192.168.0.1"));
  17   // SNI without any dot.
  18   EXPECT_FALSE(CryptoUtils::IsValidSNI("somedomain"));
  19   // Invalid RFC2396 hostname
  20   // TODO(rtenneti): Support RFC2396 hostname.
  21   // EXPECT_FALSE(CryptoUtils::IsValidSNI("some_domain.com"));
  22   // An empty string must be invalid otherwise the QUIC client will try sending
  23   // it.
  24   EXPECT_FALSE(CryptoUtils::IsValidSNI(""));
  25
  26   // Valid SNI
  27   EXPECT_TRUE(CryptoUtils::IsValidSNI("test.google.com"));
  28 }
  29
  30 TEST(CryptoUtilsTest, NormalizeHostname) {
  31   struct {
  32     const char *input, *expected;
  33   } tests[] = {
  34     { "www.google.com", "www.google.com", },
  35     { "WWW.GOOGLE.COM", "www.google.com", },
  36     { "www.google.com.", "www.google.com", },
  37     { "www.google.COM.", "www.google.com", },
  38     { "www.google.com..", "www.google.com", },
  39     { "www.google.com........", "www.google.com", },
  40   };
  41
  42   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) {
  43     EXPECT_EQ(std::string(tests[i].expected),
  44               CryptoUtils::NormalizeHostname(tests[i].input));
  45   }
  46 }
  47
  48 TEST(CryptoUtilsTest, TestExportKeyingMaterial) {
  49   const struct TestVector {
  50     // Input (strings of hexadecimal digits):
  51     const char* subkey_secret;
  52     const char* label;
  53     const char* context;
  54     size_t result_len;
  55
  56     // Expected output (string of hexadecimal digits):
  57     const char* expected;  // Null if it should fail.
  58   } test_vector[] = {
  59     // Try a typical input
  60     { "4823c1189ecc40fce888fbb4cf9ae6254f19ba12e6d9af54788f195a6f509ca3",
  61       "e934f78d7a71dd85420fceeb8cea0317",
  62       "b8d766b5d3c8aba0009c7ed3de553eba53b4de1030ea91383dcdf724cd8b7217",
  63       32,
  64       "a9979da0d5f1c1387d7cbe68f5c4163ddb445a03c4ad6ee72cb49d56726d679e"
  65     },
  66     // Don't let the label contain nulls
  67     { "14fe51e082ffee7d1b4d8d4ab41f8c55",
  68       "3132333435363700",
  69       "58585858585858585858585858585858",
  70       16,
  71       NULL
  72     },
  73     // Make sure nulls in the context are fine
  74     { "d862c2e36b0a42f7827c67ebc8d44df7",
  75       "7a5b95e4e8378123",
  76       "4142434445464700",
  77       16,
  78       "12d418c6d0738a2e4d85b2d0170f76e1"
  79     },
  80     // ... and give a different result than without
  81     { "d862c2e36b0a42f7827c67ebc8d44df7",
  82       "7a5b95e4e8378123",
  83       "41424344454647",
  84       16,
  85       "abfa1c479a6e3ffb98a11dee7d196408"
  86     },
  87     // Try weird lengths
  88     { "d0ec8a34f6cc9a8c96",
  89       "49711798cc6251",
  90       "933d4a2f30d22f089cfba842791116adc121e0",
  91       23,
  92       "c9a46ed0757bd1812f1f21b4d41e62125fec8364a21db7"
  93     },
  94   };
  95
  96   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_vector); i++) {
  97     // Decode the test vector.
  98     string subkey_secret;
  99     string label;
 100     string context;
 101     ASSERT_TRUE(DecodeHexString(test_vector[i].subkey_secret, &subkey_secret));
 102     ASSERT_TRUE(DecodeHexString(test_vector[i].label, &label));
 103     ASSERT_TRUE(DecodeHexString(test_vector[i].context, &context));
 104     size_t result_len = test_vector[i].result_len;
 105     bool expect_ok = test_vector[i].expected != NULL;
 106     string expected;
 107     if (expect_ok) {
 108       ASSERT_TRUE(DecodeHexString(test_vector[i].expected, &expected));
 109     }
 110
 111     string result;
 112     bool ok = CryptoUtils::ExportKeyingMaterial(subkey_secret,
 113                                                 label,
 114                                                 context,
 115                                                 result_len,
 116                                                 &result);
 117     EXPECT_EQ(expect_ok, ok);
 118     if (expect_ok) {
 119       EXPECT_EQ(result_len, result.length());
 120       test::CompareCharArraysWithHexError("HKDF output",
 121                                           result.data(),
 122                                           result.length(),
 123                                           expected.data(),
 124                                           expected.length());
 125     }
 126   }
 127 }
 128
 129 }  // namespace
 130 }  // namespace test
 131 }  // namespace net