75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
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/**
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* @author tlwr [toby@toby.codes]
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* @copyright Crown Copyright 2017
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* @license Apache-2.0
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*/
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import Operation from "../Operation";
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import * as kbpgp from "kbpgp";
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import { promisify } from "es6-promisify";
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import { ASP, importPrivateKey } from "../lib/PGP";
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/**
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* PGP Decrypt operation
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*/
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class PGPDecrypt extends Operation {
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/**
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* PGPDecrypt constructor
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*/
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constructor() {
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super();
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this.name = "PGP Decrypt";
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this.module = "PGP";
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this.description = "Input: the ASCII-armoured PGP message you want to decrypt.\n<br><br>\nArguments: the ASCII-armoured PGP private key of the recipient, \n(and the private key password if necessary).\n<br><br>\nPretty Good Privacy is an encryption standard (OpenPGP) used for encrypting, decrypting, and signing messages.\n<br><br>\nThis function uses the Keybase implementation of PGP.";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [
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{
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"name": "Private key of recipient",
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"type": "text",
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"value": ""
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},
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{
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"name": "Private key passphrase",
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"type": "string",
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"value": ""
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}
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];
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}
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/**
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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async run(input, args) {
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const encryptedMessage = input,
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privateKey = args[0],
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passphrase = args[1],
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keyring = new kbpgp.keyring.KeyRing();
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let plaintextMessage;
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if (!privateKey) return "Enter the private key of the recipient.";
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const key = await importPrivateKey(privateKey, passphrase);
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keyring.add_key_manager(key);
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try {
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plaintextMessage = await promisify(kbpgp.unbox)({
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armored: encryptedMessage,
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keyfetch: keyring,
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asp: ASP
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});
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} catch (err) {
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throw `Couldn't decrypt message with provided private key: ${err}`;
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}
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return plaintextMessage.toString();
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}
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}
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export default PGPDecrypt;
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