third_party/WebKit/LayoutTests/crypto/subtle/aes-generateKey.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <script src="../../resources/js-test.js"></script>
   5 <script src="resources/common.js"></script>
   6 </head>
   7 <body>
   8 <p id="description"></p>
   9 <div id="console"></div>
  10
  11 <script>
  12 description("Tests generating AES keys");
  13
  14 jsTestIsAsync = true;
  15
  16 // Tests the 24 permutations of keys generated by:
  17 //   kPossibleAlgorithms x kPossibleExtractable x kPossibleKeyUsages x kPossibleKeyLengths
  18 //
  19 // For practical reasons these tests are not exhaustive.
  20
  21 var kPossibleAlgorithms = ['AES-CBC', 'AES-GCM'];
  22 var kPossibleExtractable = [true, false];
  23 var kPossibleKeyUsages = [['encrypt'], ['decrypt', 'wrapKey'], ['encrypt', 'wrapKey', 'unwrapKey']];
  24 var kPossibleKeyLengths = [128, 256];
  25
  26 // Set of all key data generated so far.
  27 var allKeyDataGenerated = {};
  28
  29 function runTest(algorithmName, extractable, keyUsages, keyLengthBits)
  30 {
  31     var genAlgorithm = { name: algorithmName, length: keyLengthBits };
  32
  33     var results = {};
  34
  35     var promise = crypto.subtle.generateKey(genAlgorithm, extractable, keyUsages).then(function(result) {
  36         generatedKey = result;
  37
  38         shouldEvaluateAs("generatedKey.extractable", extractable);
  39         shouldEvaluateAs("generatedKey.algorithm.name", algorithmName);
  40         shouldEvaluateAs("generatedKey.algorithm.length", keyLengthBits);
  41         shouldEvaluateAs("generatedKey.usages.join(',')", keyUsages.join(","));
  42
  43         if (extractable)
  44             return crypto.subtle.exportKey('raw', generatedKey);
  45     });
  46
  47     if (extractable) {
  48         promise = promise.then(function(result) {
  49             keyData = result;
  50             shouldEvaluateAs("keyData.byteLength", keyLengthBits / 8);
  51
  52             var keyDataHex = bytesToHexString(keyData);
  53
  54             // It is very unlikely to generate two identical keys, so
  55             // assume if that happens something is broken.
  56             // (8 extractable keys are generated for each bit length).
  57             if (allKeyDataGenerated[keyDataHex]) {
  58                 testFailed("Generated identical key data: " + keyDataHex);
  59             } else {
  60                 allKeyDataGenerated[keyDataHex] = true;
  61                 testPassed("Generated unique key data of length: " + (keyData.byteLength * 8) + " bits");
  62             }
  63         });
  64     }
  65
  66     return promise;
  67 }
  68
  69 var lastPromise = Promise.resolve(null);
  70
  71 kPossibleAlgorithms.forEach(function(algorithmName) {
  72     kPossibleExtractable.forEach(function(extractable) {
  73         kPossibleKeyUsages.forEach(function(keyUsages) {
  74             kPossibleKeyLengths.forEach(function(keyLengthBits) {
  75                 lastPromise = lastPromise.then(runTest.bind(null, algorithmName, extractable, keyUsages, keyLengthBits));
  76             });
  77         });
  78     });
  79 });
  80
  81 lastPromise.then(finishJSTest, failAndFinishJSTest);
  82
  83 </script>
  84
  85 </body>
  86 </html>