@okta/okta-auth-js/esm/browser/crypto/oidcHash.js

The Okta Auth SDK

/*!
 * Copyright (c) 2015-present, Okta, Inc. and/or its affiliates. All rights reserved.
 * The Okta software accompanied by this notice is provided pursuant to the Apache License, Version 2.0 (the "License.")
 *
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * 
 * See the License for the specific language governing permissions and limitations under the License.
 */

import { stringToBase64Url } from './base64.js';
import { webcrypto as c } from './browser.js';

function getOidcHash(str) {
    var buffer = new TextEncoder().encode(str);
    return c.subtle.digest('SHA-256', buffer).then(function (arrayBuffer) {
        var intBuffer = new Uint8Array(arrayBuffer);
        var firstHalf = intBuffer.slice(0, 16);
        var hash = String.fromCharCode.apply(null, firstHalf);
        var b64u = stringToBase64Url(hash);
        return b64u;
    });
}

export { getOidcHash };
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