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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
/* global tv */
const WEBCRYPTO_ALG_PROBE = "WEBCRYPTO_ALG";
ChromeUtils.defineESModuleGetters(this, {
TelemetryTestUtils: "resource://testing-common/TelemetryTestUtils.sys.mjs",
});
add_task(async function ecdh_key() {
let hist = TelemetryTestUtils.getAndClearHistogram(WEBCRYPTO_ALG_PROBE);
let alg = { name: "ECDH", namedCurve: "P-256" };
let x = await crypto.subtle.generateKey(alg, false, [
"deriveKey",
"deriveBits",
]);
let data = await crypto.subtle.deriveBits(
{ name: "ECDH", public: x.publicKey },
x.privateKey,
128
);
is(data.byteLength, 128 / 8, "Should be 16 bytes derived");
TelemetryTestUtils.assertHistogram(hist, 20, 1);
});
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