64 lines
2.1 KiB
JavaScript
64 lines
2.1 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.bufferEqual = exports.randomBytes = exports.hash = exports.verifyBlob = exports.createPublicKey = 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 crypto_1 = __importDefault(require("crypto"));
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const SHA256_ALGORITHM = 'sha256';
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function createPublicKey(key) {
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if (typeof key === 'string') {
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return crypto_1.default.createPublicKey(key);
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}
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else {
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return crypto_1.default.createPublicKey({ key, format: 'der', type: 'spki' });
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}
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}
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exports.createPublicKey = createPublicKey;
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function verifyBlob(data, key, signature, algorithm) {
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// The try/catch is to work around an issue in Node 14.x where verify throws
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// an error in some scenarios if the signature is invalid.
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try {
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return crypto_1.default.verify(algorithm, data, key, signature);
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}
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catch (e) {
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/* istanbul ignore next */
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return false;
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}
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}
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exports.verifyBlob = verifyBlob;
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function hash(data) {
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const hash = crypto_1.default.createHash(SHA256_ALGORITHM);
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return hash.update(data).digest();
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}
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exports.hash = hash;
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function randomBytes(count) {
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return crypto_1.default.randomBytes(count);
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}
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exports.randomBytes = randomBytes;
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function bufferEqual(a, b) {
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try {
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return crypto_1.default.timingSafeEqual(a, b);
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}
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catch {
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/* istanbul ignore next */
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return false;
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}
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}
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exports.bufferEqual = bufferEqual;
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