Quelle test_WebCrypto_HKDF.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/dom/crypto/test/test_WebCrypto_HKDF.html

<!DOCTYPE html>
<html>

<head>
<title>WebCrypto Test Suite</title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<link rel="stylesheet" href="./test_WebCrypto.css"/>
<script src="/tests/SimpleTest/SimpleTest.js"></script>


<script src="util.js"></script>


<script src="simpledb.js"></script>


<script src="./test-vectors.js"></script>


<script src="./test-array.js"></script>

<script>/* <![CDATA[*/
"use strict";

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Deriving zero bits should produce an empty array",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "SHA-256",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveBits"])
      .then(x => crypto.subtle.deriveBits(alg, x, 0))
      .then(memcmp_complete(that, new Uint8Array([])))
      .catch(error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Derive eight bits with HKDF, no salt or info given",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "SHA-256",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveBits"])
      .then(x => crypto.subtle.deriveBits(alg, x, 8))
      .then(memcmp_complete(that, new Uint8Array([0x8d])))
      .catch(error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Deriving too many bits should fail",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "SHA-256",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    function deriveBits(x) {
      // The maximum length (in bytes) of output material for HKDF is 255 times
      // the digest length. In this case, the digest length (in bytes) of
      // SHA-256 is 32; 32*255 = 8160. deriveBits expects the length to be in
      // bits, so 8160*8=65280 and add 1 to exceed the maximum length.
      return crypto.subtle.deriveBits(alg, x, 65281);
    }

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveBits"])
      .then(deriveBits, error(that))
      .then(error(that), complete(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Deriving with an unsupported PRF should fail",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "HMAC",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    function deriveBits(x) {
      return crypto.subtle.deriveBits(alg, x, 8);
    }

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveBits"])
      .then(deriveBits, error(that))
      .then(error(that), complete(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Deriving with a non-HKDF key should fail",
  function() {
    var that = this;

    var alg = {
      name: "HKDF",
      hash: "HMAC",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    function deriveBits(x) {
      return crypto.subtle.deriveBits(alg, x, 8);
    }

    var ecAlg = {name: "ECDH", namedCurve: "P-256"};
    crypto.subtle.generateKey(ecAlg, false, ["deriveBits"])
      .then(deriveBits, error(that))
      .then(error(that), complete(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Derive known values from test vectors (SHA-1 and SHA-256)",
  function() {
    var that = this;
    var tests = tv.hkdf.slice();
    if (!tests.length) {
      error(that)("No tests found");
      return;
    }

    function next() {
      if (!tests.length) {
        return Promise.resolve();
      }

      var test = tests.shift();
      var {key} = test;

      return crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveBits"])
        .then(function(baseKey) {
          return crypto.subtle.deriveBits({
            name: "HKDF",
            hash: test.prf,
            salt: test.salt,
            info: test.info,
          }, baseKey, test.data.byteLength * 8);
        })
        .then(function(data) {
          if (!util.memcmp(data, test.data)) {
            throw new Error("derived bits don't match expected value");
          }

          // Next test vector.
          return next();
        });
    }

    next().then(complete(that), error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Derive known values from test vectors (JWK, SHA-256)",
  function() {
    var that = this;
    var test = tv.hkdf[0];
    var alg = {
      name: "HKDF",
      hash: test.prf,
      salt: test.salt,
      info: test.info,
    };

    crypto.subtle.importKey("jwk", test.jwk, "HKDF", false, ["deriveBits"])
      .then(x => crypto.subtle.deriveBits(alg, x, test.data.byteLength * 8))
      .then(memcmp_complete(that, test.data), error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Test wrapping/unwrapping an HKDF key",
  function() {
    var that = this;
    var hkdfKey = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
    var alg = {name: "AES-GCM", length: 256, iv: new Uint8Array(16)};
    var wrappingKey;

    function wrap(x) {
      wrappingKey = x;
      return crypto.subtle.encrypt(alg, wrappingKey, hkdfKey);
    }

    function unwrap(wrappedKey) {
      return crypto.subtle.unwrapKey(
        "raw", wrappedKey, wrappingKey, alg, "HKDF", false, ["deriveBits"])
        .then(rawKey => {
          return crypto.subtle.deriveBits({
            name: "HKDF",
            hash: "SHA-256",
            salt: new Uint8Array(),
            info: new Uint8Array(),
          }, rawKey, 8);
        })
        .then(derivedBits => {
          if (!util.memcmp(derivedBits, new Uint8Array([0x8d]))) {
            throw new Error("deriving bits failed");
          }

          // Forward to reuse.
          return wrappedKey;
        });
    }

    crypto.subtle.generateKey(alg, false, ["encrypt", "unwrapKey"])
      .then(wrap)
      .then(unwrap)
      .then(complete(that), error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Unwrapping an HKDF key in PKCS8 format should fail",
  function() {
    var that = this;
    var hkdfKey = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
    var alg = {name: "AES-GCM", length: 256, iv: new Uint8Array(16)};
    var wrappingKey;

    function wrap(x) {
      wrappingKey = x;
      return crypto.subtle.encrypt(alg, wrappingKey, hkdfKey);
    }

    function unwrap(x) {
      return crypto.subtle.unwrapKey(
        "pkcs8", x, wrappingKey, alg, "HKDF", false, ["deriveBits"]);
    }

    crypto.subtle.generateKey(alg, false, ["encrypt", "unwrapKey"])
      .then(wrap, error(that))
      .then(unwrap, error(that))
      .then(error(that), complete(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Derive an AES key using with HKDF",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "SHA-256",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    function deriveKey(x) {
      var targetAlg = {name: "AES-GCM", length: 256};
      return crypto.subtle.deriveKey(alg, x, targetAlg, false, ["encrypt"]);
    }

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveKey"])
      .then(deriveKey)
      .then(complete(that), error(that));
  }
);

// -----------------------------------------------------------------------------
TestArray.addTest(
  "Deriving an HKDF key with HKDF should fail",
  function() {
    var that = this;
    var key = util.hex2abv("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");

    var alg = {
      name: "HKDF",
      hash: "SHA-256",
      salt: new Uint8Array(),
      info: new Uint8Array(),
    };

    function deriveKey(x) {
      return crypto.subtle.deriveKey(alg, x, "HKDF", false, ["deriveBits"]);
    }

    crypto.subtle.importKey("raw", key, "HKDF", false, ["deriveKey"])
      .then(deriveKey)
      .then(error(that), complete(that));
  }
);

/* ]]>*/</script>
</head>

<body>

<div id="content">
<div id="head">
  <b>Web</b>Crypto<br>
</div>

    <div id="start" onclick="start();">RUN ALL</div>

    <div id="resultDiv" class="content">
    Summary:
    <span class="pass"><span id="passN">0</span> passed, </span>
    <span class="fail"><span id="failN">0</span> failed, </span>
    <span class="pending"><span id="pendingN">0</span> pending.</span>
    <br/>
    <br/>

    <table id="results">
        <tr>
            <th>Test</th>
            <th>Result</th>
            <th>Time</th>
        </tr>
    </table>

    </div>

    <div id="foot"></div>
</div>

</body>
</html>

Messung V0.5

¤ Dauer der Verarbeitung: 0.39 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.