286 lines
13 KiB
JavaScript
286 lines
13 KiB
JavaScript
const openpgp = typeof window !== 'undefined' && window.openpgp ? window.openpgp : require('../../dist/openpgp');
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const chai = require('chai');
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const elliptic_data = require('./elliptic_data');
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chai.use(require('chai-as-promised'));
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const expect = chai.expect;
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const key_data = elliptic_data.key_data;
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/* eslint-disable no-invalid-this */
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describe('ECDH key exchange @lightweight', function () {
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const elliptic_curves = openpgp.crypto.publicKey.elliptic;
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const decrypt_message = function (oid, hash, cipher, priv, pub, ephemeral, data, fingerprint) {
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if (openpgp.util.isString(data)) {
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data = openpgp.util.str_to_Uint8Array(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 openpgp.OID(curve.oid),
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new openpgp.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, /Not valid curve/).notify(done);
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});
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it('Invalid ephemeral key', function (done) {
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if (!openpgp.config.use_indutny_elliptic && !openpgp.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.use_indutny_elliptic && !openpgp.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.use_indutny_elliptic && !openpgp.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, 74, 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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async function genPublicEphemeralKey(curve, Q, fingerprint) {
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const curveObj = new openpgp.crypto.publicKey.elliptic.Curve(curve);
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const oid = new openpgp.OID(curveObj.oid);
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const { publicKey: V, sharedKey } = await openpgp.crypto.publicKey.elliptic.ecdh.genPublicEphemeralKey(
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curveObj, Q
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);
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let cipher_algo = curveObj.cipher;
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const hash_algo = curveObj.hash;
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const kdfParams = new openpgp.KDFParams({ cipher: cipher_algo, hash: hash_algo });
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const param = openpgp.crypto.publicKey.elliptic.ecdh.buildEcdhParam(
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openpgp.enums.publicKey.ecdh, oid, kdfParams, fingerprint
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);
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cipher_algo = openpgp.enums.read(openpgp.enums.symmetric, cipher_algo);
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const Z = await openpgp.crypto.publicKey.elliptic.ecdh.kdf(
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hash_algo, sharedKey, openpgp.crypto.cipher[cipher_algo].keySize, param, curveObj, false
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);
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return { V, Z };
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}
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async function genPrivateEphemeralKey(curve, V, Q, d, fingerprint) {
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const curveObj = new openpgp.crypto.publicKey.elliptic.Curve(curve);
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const oid = new openpgp.OID(curveObj.oid);
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const { sharedKey } = await openpgp.crypto.publicKey.elliptic.ecdh.genPrivateEphemeralKey(
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curveObj, V, Q, d
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);
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let cipher_algo = curveObj.cipher;
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const hash_algo = curveObj.hash;
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const kdfParams = new openpgp.KDFParams({ cipher: cipher_algo, hash: hash_algo });
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const param = openpgp.crypto.publicKey.elliptic.ecdh.buildEcdhParam(
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openpgp.enums.publicKey.ecdh, oid, kdfParams, fingerprint
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);
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cipher_algo = openpgp.enums.read(openpgp.enums.symmetric, cipher_algo);
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const Z = await openpgp.crypto.publicKey.elliptic.ecdh.kdf(
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hash_algo, sharedKey, openpgp.crypto.cipher[cipher_algo].keySize, param, curveObj, false
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);
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return Z;
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}
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async function genPrivateEphemeralKeySpecific(fun, curve, V, Q, d, fingerprint) {
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const curveObj = new openpgp.crypto.publicKey.elliptic.Curve(curve);
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const oid = new openpgp.OID(curveObj.oid);
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let result;
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switch (fun) {
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case 'webPrivateEphemeralKey': {
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result = await openpgp.crypto.publicKey.elliptic.ecdh[fun](
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curveObj, V, Q, d
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);
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break;
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}
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case 'nodePrivateEphemeralKey':
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case 'ellipticPrivateEphemeralKey': {
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result = await openpgp.crypto.publicKey.elliptic.ecdh[fun](
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curveObj, V, d
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);
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break;
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}
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}
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const sharedKey = result.sharedKey;
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let cipher_algo = curveObj.cipher;
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const hash_algo = curveObj.hash;
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const kdfParams = new openpgp.KDFParams({ cipher: cipher_algo, hash: hash_algo });
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const param = openpgp.crypto.publicKey.elliptic.ecdh.buildEcdhParam(
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openpgp.enums.publicKey.ecdh, oid, kdfParams, fingerprint
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);
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cipher_algo = openpgp.enums.read(openpgp.enums.symmetric, cipher_algo);
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const Z = await openpgp.crypto.publicKey.elliptic.ecdh.kdf(
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hash_algo, sharedKey, openpgp.crypto.cipher[cipher_algo].keySize, param, curveObj, false
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);
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return Z;
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}
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describe('ECDHE key generation', function () {
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it('Invalid curve', function (done) {
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if (!openpgp.config.use_indutny_elliptic && !openpgp.util.getNodeCrypto()) {
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this.skip();
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}
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expect(genPublicEphemeralKey("secp256k1", 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/).notify(done);
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});
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it('Invalid public part of ephemeral key and private key', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
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const ECDHE_Z12 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, Q2, d2, fingerprint1);
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expect(Array.from(ECDHE_Z12).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.false;
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});
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it('Invalid fingerprint', async function () {
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const ECDHE_VZ2 = await genPublicEphemeralKey("curve25519", Q2, fingerprint1);
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const ECDHE_Z2 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ2.V, Q2, d2, fingerprint2);
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expect(Array.from(ECDHE_Z2).join(' ') === Array.from(ECDHE_VZ2.Z).join(' ')).to.be.false;
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});
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it('Different keys', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
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const ECDHE_VZ2 = await genPublicEphemeralKey("curve25519", Q2, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, Q1, d1, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ2.Z).join(' ')).to.be.false;
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});
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it('Successful exchange curve25519', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, Q1, d1, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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});
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it('Successful exchange NIST P256', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("p256", key_data.p256.pub, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKey("p256", ECDHE_VZ1.V, key_data.p256.pub, key_data.p256.priv, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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});
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it('Successful exchange NIST P384', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("p384", key_data.p384.pub, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKey("p384", ECDHE_VZ1.V, key_data.p384.pub, key_data.p384.priv, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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});
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it('Successful exchange NIST P521', async function () {
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const ECDHE_VZ1 = await genPublicEphemeralKey("p521", key_data.p521.pub, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKey("p521", ECDHE_VZ1.V, key_data.p521.pub, key_data.p521.priv, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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});
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it('Comparing keys derived using webCrypto and elliptic', async function () {
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const names = ["p256", "p384", "p521"];
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if (!openpgp.util.getWebCrypto() || !openpgp.config.use_indutny_elliptic) {
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// eslint-disable-next-line no-invalid-this
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this.skip();
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}
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return Promise.all(names.map(async function (name) {
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const curve = new elliptic_curves.Curve(name);
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try {
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await window.crypto.subtle.generateKey({
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name: "ECDSA",
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namedCurve: curve.web.web
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}, false, ["sign", "verify"]);
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} catch (err) {
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openpgp.util.print_debug_error(err);
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return;
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}
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const ECDHE_VZ1 = await genPublicEphemeralKey(name, key_data[name].pub, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKeySpecific('ellipticPrivateEphemeralKey', name, ECDHE_VZ1.V, key_data[name].pub, key_data[name].priv, fingerprint1);
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const ECDHE_Z2 = await genPrivateEphemeralKeySpecific('webPrivateEphemeralKey', name, ECDHE_VZ1.V, key_data[name].pub, key_data[name].priv, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_Z2).join(' ')).to.be.true;
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}));
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});
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it('Comparing keys derived using nodeCrypto and elliptic', async function () {
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const names = ["p256", "p384", "p521"];
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if (!openpgp.util.getNodeCrypto() || !openpgp.config.use_indutny_elliptic) {
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// eslint-disable-next-line no-invalid-this
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this.skip();
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}
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return Promise.all(names.map(async function (name) {
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const ECDHE_VZ1 = await genPublicEphemeralKey(name, key_data[name].pub, fingerprint1);
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const ECDHE_Z1 = await genPrivateEphemeralKeySpecific('ellipticPrivateEphemeralKey', name, ECDHE_VZ1.V, key_data[name].pub, key_data[name].priv, fingerprint1);
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const ECDHE_Z2 = await genPrivateEphemeralKeySpecific('nodePrivateEphemeralKey', name, ECDHE_VZ1.V, key_data[name].pub, key_data[name].priv, fingerprint1);
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
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expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_Z2).join(' ')).to.be.true;
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}));
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});
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});
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});
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