45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.fromDER = exports.toDER = void 0;
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/*
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Copyright 2022 The Sigstore Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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const PEM_HEADER = /-----BEGIN (.*)-----/;
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const PEM_FOOTER = /-----END (.*)-----/;
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function toDER(certificate) {
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let der = '';
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certificate.split('\n').forEach((line) => {
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if (line.match(PEM_HEADER) || line.match(PEM_FOOTER)) {
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return;
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}
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der += line;
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});
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return Buffer.from(der, 'base64');
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}
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exports.toDER = toDER;
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// Translates a DER-encoded buffer into a PEM-encoded string. Standard PEM
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// encoding dictates that each certificate should have a trailing newline after
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// the footer.
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function fromDER(certificate, type = 'CERTIFICATE') {
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// Base64-encode the certificate.
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const der = certificate.toString('base64');
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// Split the certificate into lines of 64 characters.
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const lines = der.match(/.{1,64}/g) || '';
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return [`-----BEGIN ${type}-----`, ...lines, `-----END ${type}-----`]
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.join('\n')
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.concat('\n');
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}
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exports.fromDER = fromDER;
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