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      1 // Copyright 2014 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 #include "chrome/common/extensions/api/networking_private/networking_private_crypto.h"
      5 
      6 #include "base/base64.h"
      7 #include "base/logging.h"
      8 #include "base/strings/stringprintf.h"
      9 #include "testing/gtest/include/gtest/gtest.h"
     10 
     11 // Tests of networking_private_crypto support for Networking Private API.
     12 class NetworkingPrivateCryptoTest : public testing::Test {
     13  protected:
     14   // Verify that decryption of |encrypted| data using |private_key_pem| matches
     15   // |plain| data.
     16   bool VerifyByteString(const std::string& private_key_pem,
     17                         const std::string& plain,
     18                         const std::vector<uint8>& encrypted) {
     19     std::string decrypted;
     20     if (networking_private_crypto::DecryptByteString(
     21             private_key_pem, encrypted, &decrypted))
     22       return decrypted == plain;
     23     return false;
     24   }
     25 };
     26 
     27 // Test that networking_private_crypto::VerifyCredentials behaves as expected.
     28 TEST_F(NetworkingPrivateCryptoTest, VerifyCredentials) {
     29   static const char kCertData[] =
     30       "-----BEGIN CERTIFICATE-----"
     31       "MIIDhzCCAm8CBFE2SCMwDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCVVMxEzARBgNVBAgM"
     32       "CkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEzARBgNVBAoMCkdvb2dsZSBJ"
     33       "bmMxEjAQBgNVBAsMCUdvb2dsZSBUVjEYMBYGA1UEAwwPRXVyZWthIEdlbjEgSUNBMB4XDTEz"
     34       "MDMwNTE5MzE0N1oXDTMzMDIyODE5MzE0N1owgYMxFjAUBgNVBAcTDU1vdW50YWluIFZpZXcx"
     35       "EjAQBgNVBAsTCUdvb2dsZSBUVjETMBEGA1UEChMKR29vZ2xlIEluYzETMBEGA1UECBMKQ2Fs"
     36       "aWZvcm5pYTELMAkGA1UEBhMCVVMxHjAcBgNVBAMUFWV2dF9lMTYxIDAwMWExMWZmYWNkZjCC"
     37       "ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAPHGDV0lLoTYK78q13y/2u77YTjgbBlW"
     38       "AOxgrSNcMmGHx1K0aPyo50p99dGQnjapW6jtGrMzReWV2Wz3VL8rYlqY7oWjeJwsLQwo2tcn"
     39       "7vIZ/PuvPz9xgnGMUbBOfhCf3Epb1N4Jz82pxxrOFhUawWAglC9C4fUeZLCZpOJsQd4QeAzn"
     40       "kydl3xbqdSm74kwxE6vkGEzSCDnC7aYx0Rvvr1mZOKdl4AinYrxzWgmVsTnaFT1soSjmC5e/"
     41       "i6Jcrs4dDFgY6mKy9Qtly2XPSCYljm6L4SgqgJNmlpY0qYJgO++BdofIbU2jsOiCMvIuKkbM"
     42       "n72NsPQG0QhnVMwk7kYg6kkCAwEAAaMNMAswCQYDVR0TBAIwADANBgkqhkiG9w0BAQUFAAOC"
     43       "AQEAW0bQl9yjBc7DgMp94i7ZDOUxKQrzthephuwzb3/wWiTHcw6KK6FRPefXn6NPWxKKeQmv"
     44       "/tBxHbVlmYRXUbrhksnD0aUki4InvtL2m0H1fPfMxmJRFE+HoSXu+s0sGON831JaMcYRbAku"
     45       "5uHnltaGNzOI0KPHFGoCDmjAZD+IuoR2LR4FuuTrECK7KLjkdf//z5d5j7nBDPZS7uTCwC/B"
     46       "wM9asRj3tJA5VRFbLbsit1VI7IaRCk9rsSKkpBUaVeKbPLz+y/Z6JonXXT6AxsfgUSKDd4B7"
     47       "MYLrTwMQfGuUaaaKko6ldKIrovjrcPloQr1Hxb2bipFcjLmG7nxQLoS6vQ=="
     48       "-----END CERTIFICATE-----";
     49   static const char kName[] = "eureka8997";
     50   static const char kSsdpUdn[] = "c5b2a83b-5958-7ce6-b179-e1f44699429b";
     51   static const char kHotspotBssid[] = "00:1A:11:FF:AC:DF";
     52   static const char kPublicKey[] =
     53       "MIGJAoGBAK3SXmWZBOhJibv8It05qIbgHXXhnCXxHkW+C6jNMHR5sZgDpFaOY1xwXERjKdJx"
     54       "cwrEy3VAT5Uv9MgHPBvxxJku76HYh1yVfIw1rhLnHBTHSxwUzJNCrgc3l3t/UACacLjVNIzc"
     55       "cDpYf2vnOcA+t1t6IXRjzuU2NdwY4dJXNtWPAgMBAAE=";
     56   static const char kNonce[] = "+6KSGuRu833m1+TP";
     57   static const char kSignedData[] =
     58       "vwMBgANrp5XpCswLyk/OTXT56ORPeIWjH7xAdCk3qgjkwI6+8o56zJS02+tC5hhIHWh7oppT"
     59       "mWYF4tKvBQ3GeCz7IW9f7HWDMtO7x7yRWxzJyehaJbCfXvLdfs0/WKllzvGVBgNpcIAwU2NS"
     60       "FUG/jpXclntFzds0EUJG9wHxS6PXXSYRu+PlIFdCDcQJsUlnwO9AGFOJRV/aARGh8YUTWCFI"
     61       "QPOtPEqT5eegt+TLf01Gq0YcrRwSTKy1I3twOnWiMfIdkJdQKPtBwwbvuAyGuqYFocfjKABb"
     62       "nH9Tvl04yyO3euKbYlSqaF/l8CXmzDJTyO7tDOFK59bV9auE4KljrQ==";
     63   static const char kBadSubjectCertData[] =
     64       "-----BEGIN CERTIFICATE-----"
     65       "MIIDejCCAmICBFEtN4wwDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCVVMxEzARBgNVBAgM"
     66       "CkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEzARBgNVBAoMCkdvb2dsZSBJ"
     67       "bmMxEjAQBgNVBAsMCUdvb2dsZSBUVjEYMBYGA1UEAwwPRXVyZWthIEdlbjEgSUNBMB4XDTEz"
     68       "MDIyNjIyMzAzNloXDTMzMDIyMTIyMzAzNlowdzETMBEGA1UECBMKQ2FsaWZvcm5pYTELMAkG"
     69       "A1UEBhMCVVMxFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxEjAQBgNVBAsTCUdvb2dsZSBUVjET"
     70       "MBEGA1UEChMKR29vZ2xlIEluYzESMBAGA1UEAxQJZXZ0X2UxMjYyMIIBIjANBgkqhkiG9w0B"
     71       "AQEFAAOCAQ8AMIIBCgKCAQEAo7Uu+bdyCjtiUYpmNU4ZvRjDg6VkEh/g0YPDG2pICBU4XKvs"
     72       "qHH1i0hbtWp1J79hV9Rqst1yHT02Oeh3o1SOd2zeamYzmvXRVN7AZqfQlzWxwxk/ltpXGwew"
     73       "m+EIR2bP4kpvyEKvvziTMtTxviOK+A395QyodMhMXClKTus/Gme2r1fBoQqJJR/zrmwXCsl5"
     74       "kpdhj7FOIII3BCYV0zejjQquzywjsKfCVON28VGgJdaKgmXxkeRYYWVNnuTNna57vXe16FP6"
     75       "hS1ty1U77ESffLTpNJ/M4tsd2dMVVTDuGeX3q8Ix4TN8cqpqu1AKEf59hygys9j6cHZRKR/d"
     76       "iv0+uQIDAQABow0wCzAJBgNVHRMEAjAAMA0GCSqGSIb3DQEBBQUAA4IBAQAZx6XyEK9SLHE+"
     77       "rbKCVsLN9+hTEa50aikPmxOZt+lFuB4+VJZ/GCPQCZJIde2tlWUe2YBgoZw2xUKgIsM3Yq42"
     78       "Gawi35/oZ3qycTgYU8KJP9kUMbYNAH90mz9BDH7MmnRID5dFexHyBCG88EJ+ZvxmUVn0EVDc"
     79       "sSMt11wIAZ/T+/gsE1120d/GxhjYQ9YZz7SZXBQfRdqCdcPNl2+QSHHl+WvYLzdJa2xYj39/"
     80       "kQu47Vp7X5rZrHSBvzdVymH0Od2D18t+Q6lxbSdyUNhP1MVhdkT1Ct4OmRS3FJ4aannXMhfq"
     81       "Ng7k4Sfif5iktYT4VRKpThe0EGJNfqKJKYtvHEVC"
     82       "-----END CERTIFICATE-----";
     83   static const char kBadCertData[] = "not a certificate";
     84   static const char kBadNonce[] = "bad nonce";
     85   static const char kBadHotspotBssid[] = "bad bssid";
     86 
     87   std::string unsigned_data = base::StringPrintf(
     88       "%s,%s,%s,%s,%s", kName, kSsdpUdn, kHotspotBssid, kPublicKey, kNonce);
     89   std::string signed_data;
     90   base::Base64Decode(kSignedData, &signed_data);
     91 
     92   // Checking basic verification operation.
     93   EXPECT_TRUE(networking_private_crypto::VerifyCredentials(
     94       kCertData, signed_data, unsigned_data, kHotspotBssid));
     95 
     96   // Checking that verification fails when the certificate is signed, but
     97   // subject is malformed.
     98   EXPECT_FALSE(networking_private_crypto::VerifyCredentials(
     99       kBadSubjectCertData, signed_data, unsigned_data, kHotspotBssid));
    100 
    101   // Checking that verification fails when certificate has invalid format.
    102   EXPECT_FALSE(networking_private_crypto::VerifyCredentials(
    103       kBadCertData, signed_data, unsigned_data, kHotspotBssid));
    104 
    105   // Checking that verification fails when Hotspot Bssid is invalid.
    106   EXPECT_FALSE(networking_private_crypto::VerifyCredentials(
    107       kCertData, signed_data, unsigned_data, kBadHotspotBssid));
    108 
    109   // Checking that verification fails when there is bad nonce in unsigned_data.
    110   unsigned_data = base::StringPrintf(
    111       "%s,%s,%s,%s,%s", kName, kSsdpUdn, kHotspotBssid, kPublicKey, kBadNonce);
    112   EXPECT_FALSE(networking_private_crypto::VerifyCredentials(
    113       kCertData, signed_data, unsigned_data, kHotspotBssid));
    114 }
    115 
    116 // Test that networking_private_crypto::EncryptByteString behaves as expected.
    117 TEST_F(NetworkingPrivateCryptoTest, EncryptByteString) {
    118   static const char kPublicKey[] =
    119       "MIGJAoGBANTjeoILNkSKHVkd3my/rSwNi+9t473vPJU0lkM8nn9C7+gmaPvEWg4ZNkMd12aI"
    120       "XDXVHrjgjcS80bPE0ykhN9J7EYkJ+43oulJMrEnyDy5KQo7U3MKBdjaKFTS+OPyohHpI8GqH"
    121       "KM8UMkLPVtAKu1BXgGTSDvEaBAuoVT2PM4XNAgMBAAE=";
    122   static const char kPrivateKey[] =
    123       "-----BEGIN PRIVATE KEY-----"
    124       "MIICdwIBADANBgkqhkiG9w0BAQEFAASCAmEwggJdAgEAAoGBANTjeoILNkSKHVkd"
    125       "3my/rSwNi+9t473vPJU0lkM8nn9C7+gmaPvEWg4ZNkMd12aIXDXVHrjgjcS80bPE"
    126       "0ykhN9J7EYkJ+43oulJMrEnyDy5KQo7U3MKBdjaKFTS+OPyohHpI8GqHKM8UMkLP"
    127       "VtAKu1BXgGTSDvEaBAuoVT2PM4XNAgMBAAECgYEAt91H/2zjj8qhkkhDxDS/wd5p"
    128       "T37fRTmMX2ktpiCC23LadOxHm7p39Nk9jjYFxV5cFXpdsFrw1kwl6VdC8LDp3eGu"
    129       "Ku1GCqj5H2fpnkmL2goD01HRkPR3ro4uBHPtTXDbCIz0qp+NGlGG4gPUysMXxHSb"
    130       "E5FIWeUx6gcPvidwrpkCQQD40FXY46KDJT8JVYJMqY6nFQZvptFl+9BGWfheVVSF"
    131       "KBlTQBx/QA+XcC/W9Q/I+NEhdGcxLlkEMUpihSpYffKbAkEA2wmFfccdheTtoOuY"
    132       "8oTurbnFHsS7gLtcR2IbRJKXw80CJxTQA/LMWz0YuFOAYJNl/9ILMfp6MQiI4L9F"
    133       "l6pbtwJAJqkAXcXo72WvKL0flNfXsYBj0p9h8+2vi+7Y15d8nYAAh13zz5XdllM5"
    134       "K7ZCMKDwpbkXe53O+QbLnwk/7iYLtwJAERT6AygfJk0HNzCIeglh78x4EgE3uj9i"
    135       "X/LHu55PFacMTu3xlw09YLQwFFf2wBFeuAeyddBZ7S8ENbrU+5H+mwJBAO2E6gwG"
    136       "e5ZqY4RmsQmv6K0rn5k+UT4qlPeVp1e6LnvO/PcKWOaUvDK59qFZoX4vN+iFUAbk"
    137       "IuvhmL9u/uPWWck="
    138       "-----END PRIVATE KEY-----";
    139   static const std::vector<uint8> kBadKeyData(5, 111);
    140   static const char kTestData[] = "disco boy";
    141   static const char kEmptyData[] = "";
    142 
    143   std::string public_key_string;
    144   base::Base64Decode(kPublicKey, &public_key_string);
    145   std::vector<uint8> public_key(public_key_string.begin(),
    146                                 public_key_string.end());
    147   std::string plain;
    148   std::vector<uint8> encrypted_output;
    149 
    150   // Checking basic encryption operation.
    151   plain = kTestData;
    152   EXPECT_TRUE(networking_private_crypto::EncryptByteString(
    153       public_key, plain, &encrypted_output));
    154   EXPECT_TRUE(VerifyByteString(kPrivateKey, plain, encrypted_output));
    155 
    156   // Checking that we can encrypt the empty string.
    157   plain = kEmptyData;
    158   EXPECT_TRUE(networking_private_crypto::EncryptByteString(
    159       public_key, plain, &encrypted_output));
    160 
    161   // Checking graceful fail for too much data to encrypt.
    162   EXPECT_FALSE(networking_private_crypto::EncryptByteString(
    163       public_key, std::string(500, 'x'), &encrypted_output));
    164 
    165   // Checking graceful fail for a bad key format.
    166   EXPECT_FALSE(networking_private_crypto::EncryptByteString(
    167       kBadKeyData, kTestData, &encrypted_output));
    168 }
    169