46 lines
1.7 KiB
JavaScript
46 lines
1.7 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.EphemeralSigner = void 0;
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/*
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Copyright 2023 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 EC_KEYPAIR_TYPE = 'ec';
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const P256_CURVE = 'P-256';
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// Signer implementation which uses an ephemeral keypair to sign artifacts.
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// The private key lives only in memory and is tied to the lifetime of the
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// EphemeralSigner instance.
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class EphemeralSigner {
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constructor() {
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this.keypair = crypto_1.default.generateKeyPairSync(EC_KEYPAIR_TYPE, {
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namedCurve: P256_CURVE,
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});
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}
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async sign(data) {
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const signature = crypto_1.default.sign(null, data, this.keypair.privateKey);
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const publicKey = this.keypair.publicKey
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.export({ format: 'pem', type: 'spki' })
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.toString('ascii');
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return {
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signature: signature,
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key: { $case: 'publicKey', publicKey },
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};
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}
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}
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exports.EphemeralSigner = EphemeralSigner;
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