1c07d268b8
As specified in openpgp-crypto-refresh-09. Instead of encoding the symmetric key algorithm in the PKESK ciphertext (requiring padding), the symmetric key algorithm is left unencrypted. Co-authored-by: Lukas Burkhalter <lukas.burkhalter@proton.ch>
255 lines
10 KiB
JavaScript
255 lines
10 KiB
JavaScript
const sandbox = require('sinon/lib/sinon/sandbox');
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const { use: chaiUse, expect } = require('chai');
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chaiUse(require('chai-as-promised'));
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const openpgp = typeof window !== 'undefined' && window.openpgp ? window.openpgp : require('../..');
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const OID = require('../../src/type/oid');
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const KDFParams = require('../../src/type/kdf_params');
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const elliptic_curves = require('../../src/crypto/public_key/elliptic');
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const util = require('../../src/util');
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const elliptic_data = require('./elliptic_data');
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const random = require('../../src/crypto/random');
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const key_data = elliptic_data.key_data;
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/* eslint-disable no-invalid-this */
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module.exports = () => describe('ECDH key exchange @lightweight', function () {
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const decrypt_message = function (oid, hash, cipher, priv, pub, ephemeral, data, fingerprint) {
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if (util.isString(data)) {
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data = util.stringToUint8Array(data);
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} else {
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data = new Uint8Array(data);
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}
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return Promise.resolve().then(() => {
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const curve = new elliptic_curves.Curve(oid);
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return elliptic_curves.ecdh.decrypt(
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new OID(curve.oid),
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new KDFParams({ cipher, hash }),
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new Uint8Array(ephemeral),
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data,
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new Uint8Array(pub),
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new Uint8Array(priv),
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new Uint8Array(fingerprint)
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);
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});
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};
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const secp256k1_value = new Uint8Array([
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0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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]);
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const secp256k1_point = new Uint8Array([
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0x04,
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0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC,
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0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07,
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0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9,
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0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98,
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0x48, 0x3A, 0xDA, 0x77, 0x26, 0xA3, 0xC4, 0x65,
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0x5D, 0xA4, 0xFB, 0xFC, 0x0E, 0x11, 0x08, 0xA8,
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0xFD, 0x17, 0xB4, 0x48, 0xA6, 0x85, 0x54, 0x19,
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0x9C, 0x47, 0xD0, 0x8F, 0xFB, 0x10, 0xD4, 0xB8
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]);
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const secp256k1_invalid_point = new Uint8Array([
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0x04,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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]);
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const secp256k1_data = new Uint8Array([
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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]);
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it('Invalid curve oid', function (done) {
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expect(decrypt_message(
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'', 2, 7, [], [], [], [], []
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)).to.be.rejectedWith(Error, /Unknown curve/).notify(done);
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});
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it('Invalid ephemeral key', function (done) {
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if (!openpgp.config.useIndutnyElliptic && !util.getNodeCrypto()) {
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this.skip();
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}
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expect(decrypt_message(
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'secp256k1', 2, 7, [], [], [], [], []
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)).to.be.rejectedWith(Error, /Private key is not valid for specified curve|Unknown point format/).notify(done);
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});
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it('Invalid elliptic public key', function (done) {
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if (!openpgp.config.useIndutnyElliptic && !util.getNodeCrypto()) {
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this.skip();
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}
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expect(decrypt_message(
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'secp256k1', 2, 7, secp256k1_value, secp256k1_point, secp256k1_invalid_point, secp256k1_data, []
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)).to.be.rejectedWith(Error, /Public key is not valid for specified curve|Failed to translate Buffer to a EC_POINT|Invalid elliptic public key/).notify(done);
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});
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it('Invalid key data integrity', function (done) {
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if (!openpgp.config.useIndutnyElliptic && !util.getNodeCrypto()) {
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this.skip();
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}
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expect(decrypt_message(
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'secp256k1', 2, 7, secp256k1_value, secp256k1_point, secp256k1_point, secp256k1_data, []
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)).to.be.rejectedWith(Error, /Key Data Integrity failed/).notify(done);
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});
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const Q1 = new Uint8Array([
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64,
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48, 226, 162, 114, 194, 194, 67, 214,
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199, 10, 173, 22, 216, 240, 197, 202,
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114, 49, 127, 107, 152, 58, 119, 48,
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234, 194, 192, 66, 53, 165, 137, 93
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]);
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const d1 = new Uint8Array([
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65, 200, 132, 198, 77, 86, 126, 196,
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247, 169, 156, 201, 32, 52, 3, 198,
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127, 144, 139, 47, 153, 239, 64, 235,
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61, 7, 17, 214, 64, 211, 215, 80
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]);
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const Q2 = new Uint8Array([
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64,
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154, 115, 36, 108, 33, 153, 64, 184,
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25, 139, 67, 25, 178, 194, 227, 53,
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254, 40, 101, 213, 28, 121, 154, 62,
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27, 99, 92, 126, 33, 223, 122, 91
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]);
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const d2 = new Uint8Array([
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123, 99, 163, 24, 201, 87, 0, 9,
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204, 21, 154, 5, 5, 5, 127, 157,
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237, 95, 76, 117, 89, 250, 64, 178,
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72, 69, 69, 58, 89, 228, 113, 112
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]);
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const fingerprint1 = new Uint8Array([
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177, 183,
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116, 123, 76, 133, 245, 212, 151, 243, 236,
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71, 245, 86, 3, 168, 101, 56, 209, 105
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]);
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const fingerprint2 = new Uint8Array([
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177, 83,
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123, 123, 76, 133, 245, 212, 151, 243, 236,
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71, 245, 86, 3, 168, 101, 74, 209, 105
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]);
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const ecdh = elliptic_curves.ecdh;
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it('Invalid curve', async function () {
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if (!openpgp.config.useIndutnyElliptic && !util.getNodeCrypto()) {
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this.skip();
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}
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const curve = new elliptic_curves.Curve('secp256k1');
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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expect(
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ecdh.encrypt(oid, kdfParams, data, Q1, fingerprint1)
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).to.be.rejectedWith(Error, /Public key is not valid for specified curve|Failed to translate Buffer to a EC_POINT|Unknown point format/);
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});
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it('Different keys', async function () {
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const curve = new elliptic_curves.Curve('curve25519');
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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const { publicKey: V, wrappedKey: C } = await ecdh.encrypt(oid, kdfParams, data, Q1, fingerprint1);
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await expect(
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ecdh.decrypt(oid, kdfParams, V, C, Q2, d2, fingerprint1)
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).to.be.rejectedWith(/Key Data Integrity failed/);
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});
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it('Invalid fingerprint', async function () {
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const curve = new elliptic_curves.Curve('curve25519');
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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const { publicKey: V, wrappedKey: C } = await ecdh.encrypt(oid, kdfParams, data, Q2, fingerprint1);
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await expect(
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ecdh.decrypt(oid, kdfParams, V, C, Q2, d2, fingerprint2)
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).to.be.rejectedWith(/Key Data Integrity failed/);
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});
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it('Successful exchange x25519 (legacy)', async function () {
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const curve = new elliptic_curves.Curve('curve25519');
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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const { publicKey: V, wrappedKey: C } = await ecdh.encrypt(oid, kdfParams, data, Q1, fingerprint1);
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expect(await ecdh.decrypt(oid, kdfParams, V, C, Q1, d1, fingerprint1)).to.deep.equal(data);
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});
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it('Successful exchange x25519', async function () {
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const { ecdhX } = elliptic_curves;
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const data = random.getRandomBytes(32);
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// Bob's keys from https://www.rfc-editor.org/rfc/rfc7748#section-6.1
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const b = util.hexToUint8Array('5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb');
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const K_B = util.hexToUint8Array('de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f');
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const { ephemeralPublicKey, wrappedKey } = await ecdhX.encrypt(openpgp.enums.publicKey.x25519, data, K_B);
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expect(await ecdhX.decrypt(openpgp.enums.publicKey.x25519, ephemeralPublicKey, wrappedKey, K_B, b)).to.deep.equal(data);
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});
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['p256', 'p384', 'p521'].forEach(curveName => {
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it(`NIST ${curveName} - Successful exchange`, async function () {
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const curve = new elliptic_curves.Curve(curveName);
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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const Q = key_data[curveName].pub;
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const d = key_data[curveName].priv;
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const { publicKey: V, wrappedKey: C } = await ecdh.encrypt(oid, kdfParams, data, Q, fingerprint1);
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expect(await ecdh.decrypt(oid, kdfParams, V, C, Q, d, fingerprint1)).to.deep.equal(data);
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});
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});
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describe('Comparing decrypting with and without native crypto', () => {
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let sinonSandbox;
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let getWebCryptoStub;
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let getNodeCryptoStub;
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beforeEach(function () {
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sinonSandbox = sandbox.create();
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});
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afterEach(function () {
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sinonSandbox.restore();
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});
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const disableNative = () => {
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enableNative();
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// stubbed functions return undefined
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getWebCryptoStub = sinonSandbox.stub(util, 'getWebCrypto');
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getNodeCryptoStub = sinonSandbox.stub(util, 'getNodeCrypto');
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};
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const enableNative = () => {
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getWebCryptoStub && getWebCryptoStub.restore();
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getNodeCryptoStub && getNodeCryptoStub.restore();
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};
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['p256', 'p384', 'p521'].forEach(curveName => {
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it(`NIST ${curveName}`, async function () {
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const nodeCrypto = util.getNodeCrypto();
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const webCrypto = util.getWebCrypto();
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if (!nodeCrypto && !webCrypto) {
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this.skip();
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}
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const curve = new elliptic_curves.Curve(curveName);
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const oid = new OID(curve.oid);
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const kdfParams = new KDFParams({ hash: curve.hash, cipher: curve.cipher });
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const data = util.stringToUint8Array('test');
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const Q = key_data[curveName].pub;
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const d = key_data[curveName].priv;
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const { publicKey: V, wrappedKey: C } = await ecdh.encrypt(oid, kdfParams, data, Q, fingerprint1);
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const nativeDecryptSpy = webCrypto ? sinonSandbox.spy(webCrypto, 'deriveBits') : sinonSandbox.spy(nodeCrypto, 'createECDH');
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expect(await ecdh.decrypt(oid, kdfParams, V, C, Q, d, fingerprint1)).to.deep.equal(data);
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disableNative();
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expect(await ecdh.decrypt(oid, kdfParams, V, C, Q, d, fingerprint1)).to.deep.equal(data);
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if (curveName !== 'p521') { // safari does not implement p521 in webcrypto
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expect(nativeDecryptSpy.calledOnce).to.be.true;
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}
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});
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});
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});
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});
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