third_party/WebKit/LayoutTests/crypto/subtle/derive-hkdf-keys.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 deriving HKDF keys with deriveKey()");
  13
  14 jsTestIsAsync = true;
  15
  16 var extractable = true;
  17 var derivingKeyAlgorithm = {
  18     name: "HKDF",
  19     hash: "SHA-256",
  20     salt: new Uint8Array(),
  21     info: new Uint8Array()
  22 };
  23
  24 var privateKeyJSON = {
  25     "kty": "EC",
  26     "crv": "P-256",
  27     "d": "1mGcHOo_eTxXMTgSjWLLa5DCZIf0o8NNySooVNefCIw",
  28     "x": "QcD58SaUjtYiUaUnTaOMWC7YKyfQ5yD0-8F9RStayBU",
  29     "y": "CjHmp9BL54FleRbhJVQb1MgVu5YsFn7tJt0VWof_jj0"
  30 };
  31
  32 var publicKeyJSON = {
  33     "kty": "EC",
  34     "crv": "P-256",
  35     "x": "AGzVMZDcNVrG7e8m9bLFTy7Si7o1IcU-SNyI8_Up62E",
  36     "y": "bSVna0fR_BTIgH5--cEXXgOB3J2IlxKTmb8YeOZ7UKE"
  37 };
  38
  39 var secret = hexStringToUint8Array("82b17497eefdeee07fb108496b1e88b1975e42a98046b5521d18edc96a639fea");
  40
  41 var hkdfAlgorithm = {
  42     name: "HKDF",
  43     hash: "SHA-256",
  44     salt: new Uint8Array(),
  45     info: new Uint8Array()
  46 }
  47
  48 Promise.resolve(null).then(function(result) {
  49     return crypto.subtle.importKey("jwk", privateKeyJSON, {name: "ECDH", namedCurve: "P-256"}, true, ["deriveKey"]);
  50 }).then(function(result) {
  51     privateKey = result;
  52
  53     return crypto.subtle.importKey("jwk", publicKeyJSON, {name: "ECDH", namedCurve: "P-256"}, true, []);
  54 }).then(function(result) {
  55     publicKey = result;
  56
  57     debug("Derive an HKDF key from ECDH keys");
  58     return crypto.subtle.deriveKey({name: "ECDH", namedCurve: "P-256", public: publicKey}, privateKey, "HKDF", true, ['deriveKey', 'deriveBits']);
  59 }).then(function(result) {
  60     hkdfKey = result;
  61
  62     shouldEvaluateAs("hkdfKey.algorithm.name", "HKDF");
  63     shouldEvaluateAs("hkdfKey.extractable", true);
  64     shouldEvaluateAs("hkdfKey.usages.join(',')", "deriveKey,deriveBits");
  65
  66     debug("\nDerive 128 bits from the HKDF key");
  67     return crypto.subtle.deriveBits(hkdfAlgorithm, hkdfKey, 128);
  68 }).then(function(result) {
  69     derivedBits = result;
  70
  71     return crypto.subtle.importKey("raw", secret, hkdfAlgorithm, true, ['deriveBits']);
  72 }).then(function(hkdfKey) {
  73     return crypto.subtle.deriveBits(hkdfAlgorithm, hkdfKey, 128);
  74 }).then(function(result) {
  75     expectedDerivedBits = result;
  76
  77     shouldEvaluateAs("bytesToHexString(derivedBits)", bytesToHexString(expectedDerivedBits));
  78 }).then(finishJSTest, failAndFinishJSTest);
  79
  80 </script>
  81
  82 </body>
  83 </html>