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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebAuthn getPublicKey</title>
<meta name="timeout" content="long">
<link rel="help" href="https://w3c.github.io/webauthn/#sctn-public-key-easy">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="helpers.js"></script>
<script src="resources/utils.js"></script>
<script>
function testGetPublicKey() {
standardSetup(function() {
promise_test(async t => {
let cred = await createCredential();
const response = cred.response;
assert_equals(response.getPublicKeyAlgorithm(),
cose_alg_ECDSA_w_SHA256);
const attestationObject =
new Cbor(response.attestationObject).getCBOR();
const claimedAuthDataHex = uint8ArrayToHex(
new Uint8Array(response.getAuthenticatorData()));
const actualAuthDataHex = uint8ArrayToHex(attestationObject.authData);
assert_equals(actualAuthDataHex, claimedAuthDataHex);
// Check that the x and y coordinates of the public key appear in
// the claimed SPKI, at least.
const spkiHex = uint8ArrayToHex(
new Uint8Array(response.getPublicKey()));
const authData = parseAuthenticatorData(attestationObject.authData);
const pubKey = authData.attestedCredentialData.credentialPublicKey;
const xHex = uint8ArrayToHex(pubKey.x);
const yHex = uint8ArrayToHex(pubKey.y);
assert_not_equals(-1, spkiHex.indexOf(xHex));
assert_not_equals(-1, spkiHex.indexOf(yHex));
t.done();
});
});
}
testGetPublicKey();
/* JSHINT */
/* globals standardSetup, createCredential */
</script>
</head>
<body></body>
</html>
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