tor-browser

The Tor Browser
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test_webauthn_attestation_conveyance.html (4122B)

      1 <!DOCTYPE html>
      2 <meta charset=utf-8>
      3 <head>
      4  <title>W3C Web Authentication - Attestation Conveyance</title>
      5  <script src="/tests/SimpleTest/SimpleTest.js"></script>
      6  <script type="text/javascript" src="u2futil.js"></script>
      7  <script type="text/javascript" src="pkijs/common.js"></script>
      8  <script type="text/javascript" src="pkijs/asn1.js"></script>
      9  <script type="text/javascript" src="pkijs/x509_schema.js"></script>
     10  <script type="text/javascript" src="pkijs/x509_simpl.js"></script>
     11  <script type="text/javascript" src="cbor.js"></script>
     12  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
     13 </head>
     14 <body>
     15 
     16  <h1>W3C Web Authentication - Attestation Conveyance</h1>
     17  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1428916">Mozilla Bug 1428916</a>
     18  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1416056">Mozilla Bug 1416056</a>
     19 
     20  <script class="testbody" type="text/javascript">
     21    "use strict";
     22 
     23    add_task(async () => {
     24      await SpecialPowers.pushPrefEnv({"set": [
     25        ["security.webauthn.always_allow_direct_attestation", true],
     26      ]});
     27      await addVirtualAuthenticator();
     28    });
     29 
     30    function verifyAnonymizedCertificate(aResult) {
     31      return webAuthnDecodeCBORAttestation(aResult.response.attestationObject)
     32      .then(({fmt, attStmt}) => {
     33        is(fmt, "none", "Is a None Attestation");
     34        is(typeof(attStmt), "object", "attStmt is a map");
     35        is(Object.keys(attStmt).length, 0, "attStmt is empty");
     36      });
     37    }
     38 
     39    async function verifyDirectCertificate(aResult) {
     40      let clientDataHash = await crypto.subtle.digest("SHA-256", aResult.response.clientDataJSON)
     41          .then(digest => new Uint8Array(digest));
     42      let {fmt, attStmt, authData, authDataObj} = await webAuthnDecodeCBORAttestation(aResult.response.attestationObject);
     43      is(fmt, "packed", "Is a Packed Attestation");
     44      let signedData = new Uint8Array(authData.length + clientDataHash.length);
     45      signedData.set(authData);
     46      signedData.set(clientDataHash, authData.length);
     47      let valid = await verifySignature(authDataObj.publicKeyHandle, signedData, new Uint8Array(attStmt.sig));
     48      ok(valid, "Signature is valid.");
     49    }
     50 
     51    function arrivingHereIsBad(aResult) {
     52      ok(false, "Bad result! Received a: " + aResult);
     53    }
     54 
     55    function expectTypeError(aResult) {
     56      ok(aResult.toString().startsWith("TypeError"), "Expecting a TypeError, got " + aResult);
     57    }
     58 
     59    // Start a new MakeCredential() request.
     60    function requestMakeCredential(attestation) {
     61      let publicKey = {
     62        rp: {id: document.domain, name: "none"},
     63        user: {id: new Uint8Array(), name: "none", displayName: "none"},
     64        challenge: crypto.getRandomValues(new Uint8Array(16)),
     65        timeout: 5000, // the minimum timeout is actually 15 seconds
     66        pubKeyCredParams: [{type: "public-key", alg: cose_alg_ECDSA_w_SHA256}],
     67        attestation,
     68      };
     69 
     70      return navigator.credentials.create({publicKey});
     71    }
     72 
     73    // Test success cases for make credential.
     74    add_task(async function test_make_credential_success () {
     75      // No selection criteria should be equal to none, which means anonymized
     76      await requestMakeCredential()
     77        .then(verifyAnonymizedCertificate)
     78        .catch(arrivingHereIsBad);
     79 
     80      // Request an unknown attestation type. This should be treated as "none".
     81      await requestMakeCredential("unknown")
     82        .then(verifyAnonymizedCertificate)
     83        .catch(arrivingHereIsBad);
     84 
     85      // Request no attestation.
     86      await requestMakeCredential("none")
     87        .then(verifyAnonymizedCertificate)
     88        .catch(arrivingHereIsBad);
     89 
     90      // Request indirect attestation, which is the same as direct.
     91      await requestMakeCredential("indirect")
     92        .then(verifyDirectCertificate)
     93        .catch(arrivingHereIsBad);
     94 
     95      // Request direct attestation, which will prompt for user intervention.
     96      await requestMakeCredential("direct")
     97        .then(verifyDirectCertificate)
     98        .catch(arrivingHereIsBad);
     99    });
    100  </script>
    101 
    102 </body>
    103 </html>