third_party/WebKit/LayoutTests/crypto/subtle/hkdf/unwrapKey.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("Test unwrapping an HKDF key");
  13
  14 jsTestIsAsync = true;
  15
  16 kHkdfKey = hexStringToUint8Array("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
  17 kIv = new Uint8Array(16);
  18
  19 var extractable = true;
  20 var derivingKeyAlgorithm = {
  21     name: "HKDF",
  22     hash: "SHA-256",
  23     salt: new Uint8Array(),
  24     info: new Uint8Array()
  25 };
  26
  27 Promise.resolve(null).then(function(result) {
  28     // Create a key to use for wrapping/unwrapping
  29     return crypto.subtle.generateKey({name: "AES-GCM", length: 256}, false, ['encrypt', 'unwrapKey']);
  30 }).then(function(result) {
  31     wrappingKey = result;
  32
  33     shouldEvaluateAs("wrappingKey.algorithm.name", "AES-GCM");
  34     shouldEvaluateAs("wrappingKey.extractable", false);
  35     shouldEvaluateAs("wrappingKey.usages.join(',')", "encrypt,unwrapKey");
  36
  37     // Wrap the HKDF key. Since the HKDF algorithm does not support the export
  38     // key operation, it is wrapped by calling encrypt.
  39     return crypto.subtle.encrypt({name: "AES-GCM", length: 256, iv: kIv}, wrappingKey, kHkdfKey);
  40 }).then(function(result) {
  41     wrappedKey = result;
  42
  43     // Unwrap it as a raw key.
  44     return crypto.subtle.unwrapKey("raw", wrappedKey, wrappingKey, {name: "AES-GCM", length: 256, iv: kIv}, "HKDF", false, ['deriveBits']);
  45 }).then(function(result) {
  46     unwrappedHkdfKey = result;
  47
  48     shouldEvaluateAs("unwrappedHkdfKey.algorithm.name", "HKDF");
  49     shouldEvaluateAs("unwrappedHkdfKey.extractable", false);
  50     shouldEvaluateAs("unwrappedHkdfKey.usages.join(',')", "deriveBits");
  51
  52     debug("\nUnwrap an HKDF key using pkcs8 as the format.");
  53     return crypto.subtle.unwrapKey("pkcs8", wrappedKey, wrappingKey, {name: "AES-GCM", length: 256, iv: kIv}, "HKDF", false, ['deriveBits']);
  54 }).then(failAndFinishJSTest, function(result) {
  55     logError(result);
  56 }).then(finishJSTest, failAndFinishJSTest);
  57
  58 </script>
  59
  60 </body>
  61 </html>