const openpgp = typeof window !== 'undefined' && window.openpgp ? window.openpgp : require('../../dist/openpgp');
const BN = require('bn.js');
const chai = require('chai');
chai.use(require('chai-as-promised'));
const expect = chai.expect;
describe('Elliptic Curve Cryptography', function () {
const elliptic_curves = openpgp.crypto.publicKey.elliptic;
const key_data = {
p256: {
priv: new Uint8Array([
0x2B, 0x48, 0x2B, 0xE9, 0x88, 0x74, 0xE9, 0x49,
0x1F, 0x89, 0xCC, 0xFF, 0x0A, 0x26, 0x05, 0xA2,
0x3C, 0x2A, 0x35, 0x25, 0x26, 0x11, 0xD7, 0xEA,
0xA1, 0xED, 0x29, 0x95, 0xB5, 0xE1, 0x5F, 0x1D
]),
pub: new Uint8Array([
0x04,
0x80, 0x2C, 0x40, 0x76, 0x31, 0x20, 0xB6, 0x9B,
0x48, 0x3B, 0x05, 0xEB, 0x6C, 0x1E, 0x3F, 0x49,
0x84, 0xF7, 0xD2, 0xAD, 0x16, 0xA1, 0x6F, 0x62,
0xFD, 0xCA, 0xEC, 0xB4, 0xA0, 0xBD, 0x4C, 0x1A,
0x6F, 0xAA, 0xE7, 0xFD, 0xC4, 0x7D, 0x89, 0xCC,
0x06, 0xCA, 0xFE, 0xAE, 0xCD, 0x0E, 0x9E, 0x62,
0x57, 0xA4, 0xC3, 0xE7, 0x5E, 0x69, 0x10, 0xEE,
0x67, 0xC2, 0x09, 0xF9, 0xEF, 0xE7, 0x9E, 0x56])
},
p384: {
priv: new Uint8Array([
0xB5, 0x38, 0xDA, 0xF3, 0x77, 0x58, 0x3F, 0x94,
0x5B, 0xC2, 0xCA, 0xC6, 0xA9, 0xFC, 0xAA, 0x3F,
0x97, 0xB0, 0x54, 0x26, 0x10, 0xB4, 0xEC, 0x2A,
0xA7, 0xC1, 0xA3, 0x4B, 0xC0, 0xBD, 0xFE, 0x3E,
0xF1, 0xBE, 0x76, 0xCB, 0xE8, 0xAB, 0x3B, 0xBD,
0xB6, 0x84, 0xC7, 0x8B, 0x91, 0x2F, 0x76, 0x8B
]),
pub: new Uint8Array([
0x04,
0x44, 0x83, 0xA0, 0x3E, 0x5B, 0x0A, 0x0D, 0x9B,
0xA0, 0x06, 0xDF, 0x38, 0xC7, 0x64, 0xCD, 0x62,
0x7D, 0x5E, 0x3D, 0x3B, 0x50, 0xF5, 0x06, 0xC7,
0xF7, 0x9B, 0xF0, 0xDE, 0xB1, 0x0C, 0x64, 0x74,
0x0D, 0x03, 0x67, 0x24, 0xA0, 0xFF, 0xD1, 0x3D,
0x03, 0x96, 0x48, 0xE7, 0x73, 0x5E, 0xF1, 0xC0,
0x62, 0xCC, 0x33, 0x5A, 0x2A, 0x66, 0xA7, 0xAB,
0xCA, 0x77, 0x52, 0xB8, 0xCD, 0xB5, 0x91, 0x16,
0xAF, 0x42, 0xBB, 0x79, 0x0A, 0x59, 0x51, 0x68,
0x8E, 0xEA, 0x32, 0x7D, 0x4A, 0x4A, 0xBB, 0x26,
0x13, 0xFB, 0x95, 0xC0, 0xB1, 0xA4, 0x54, 0xCA,
0xFA, 0x85, 0x8A, 0x4B, 0x58, 0x7C, 0x61, 0x39])
},
p521: {
priv: new Uint8Array([
0x00, 0xBB, 0x35, 0x27, 0xBC, 0xD6, 0x7E, 0x35,
0xD5, 0xC5, 0x99, 0xC9, 0xB4, 0x6C, 0xEE, 0xDE,
0x79, 0x2D, 0x77, 0xBD, 0x0A, 0x08, 0x9A, 0xC2,
0x21, 0xF8, 0x35, 0x1C, 0x49, 0x5C, 0x40, 0x11,
0xAC, 0x95, 0x2A, 0xEE, 0x91, 0x3A, 0x60, 0x5A,
0x25, 0x5A, 0x95, 0x38, 0xDC, 0xEB, 0x59, 0x8E,
0x33, 0xAD, 0xC0, 0x0B, 0x56, 0xB1, 0x06, 0x8C,
0x57, 0x48, 0xA3, 0x73, 0xDB, 0xE0, 0x19, 0x50,
0x2E, 0x79
]),
pub: new Uint8Array([
0x04,
0x01, 0x0D, 0xD5, 0xCA, 0xD8, 0xB0, 0xEF, 0x9F,
0x2B, 0x7E, 0x58, 0x99, 0xDE, 0x05, 0xF6, 0xF6,
0x64, 0x6B, 0xCD, 0x59, 0x2E, 0x39, 0xB8, 0x82,
0xB3, 0x13, 0xE6, 0x7D, 0x50, 0x85, 0xC3, 0xFA,
0x93, 0xA5, 0x3F, 0x92, 0x85, 0x42, 0x36, 0xC0,
0x83, 0xC9, 0xA4, 0x38, 0xB3, 0xD1, 0x99, 0xDA,
0xE1, 0x02, 0x37, 0x7A, 0x3A, 0xC2, 0xB4, 0x55,
0xEC, 0x1C, 0x0F, 0x00, 0x97, 0xFC, 0x75, 0x93,
0xFE, 0x87, 0x00, 0x7D, 0xBE, 0x1A, 0xF5, 0xF9,
0x57, 0x5C, 0xF2, 0x50, 0x2D, 0x14, 0x32, 0xEE,
0x9B, 0xBE, 0xB3, 0x0E, 0x12, 0x2F, 0xF8, 0x85,
0x11, 0x1A, 0x4F, 0x88, 0x50, 0xA4, 0xDB, 0x37,
0xA6, 0x53, 0x5C, 0xB7, 0x87, 0xA6, 0x06, 0x21,
0x15, 0xCC, 0x12, 0xC0, 0x1C, 0x83, 0x6F, 0x7B,
0x5A, 0x8A, 0x36, 0x4E, 0x46, 0x9E, 0x54, 0x3F,
0xE2, 0xF7, 0xED, 0x63, 0xC9, 0x92, 0xA4, 0x38,
0x2B, 0x9C, 0xE2, 0xB7])
},
secp256k1: {
priv: new Uint8Array([
0x9E, 0xB0, 0x30, 0xD6, 0xE1, 0xCE, 0xAA, 0x0B,
0x7B, 0x8F, 0xDE, 0x5D, 0x91, 0x4D, 0xDC, 0xA0,
0xAD, 0x05, 0xAB, 0x8F, 0x87, 0x9B, 0x57, 0x48,
0xAE, 0x8A, 0xE0, 0xF9, 0x39, 0xBD, 0x24, 0x00
]),
pub: new Uint8Array([
0x04,
0xA8, 0x02, 0x35, 0x2C, 0xB7, 0x24, 0x95, 0x51,
0x0A, 0x65, 0x26, 0x7D, 0xDF, 0xEA, 0x64, 0xB3,
0xA8, 0xE1, 0x4F, 0xDD, 0x12, 0x84, 0x7E, 0x59,
0xDB, 0x81, 0x0F, 0x89, 0xED, 0xFB, 0x29, 0xFB,
0x07, 0x60, 0x29, 0x7D, 0x39, 0x8F, 0xB8, 0x68,
0xF0, 0xFD, 0xA6, 0x67, 0x83, 0x55, 0x75, 0x7D,
0xB8, 0xFD, 0x0B, 0xDF, 0x76, 0xCE, 0xBC, 0x95,
0x4B, 0x92, 0x26, 0xFC, 0xAA, 0x7A, 0x7C, 0x3F])
}
};
const signature_data = {
priv: new Uint8Array([
0x14, 0x2B, 0xE2, 0xB7, 0x4D, 0xBD, 0x1B, 0x22,
0x4D, 0xDF, 0x96, 0xA4, 0xED, 0x8E, 0x5B, 0xF9,
0xBD, 0xD3, 0xFE, 0xAE, 0x3F, 0xB2, 0xCF, 0xEE,
0xA7, 0xDB, 0xD0, 0x58, 0xA7, 0x47, 0xF8, 0x7C
]),
pub: new Uint8Array([
0x04,
0xD3, 0x36, 0x11, 0xF9, 0xF9, 0xAB, 0x39, 0x23,
0x15, 0xB9, 0x71, 0x7B, 0x2A, 0x0B, 0xA6, 0x6D,
0x39, 0x6D, 0x64, 0x87, 0x22, 0x9A, 0xA3, 0x0A,
0x55, 0x27, 0x14, 0x2E, 0x1C, 0x61, 0xA2, 0x8A,
0xDA, 0x4E, 0x8F, 0xCE, 0x04, 0xBE, 0xE2, 0xC3,
0x82, 0x0B, 0x21, 0x4C, 0xBC, 0xED, 0x0E, 0xE2,
0xF1, 0x14, 0x33, 0x9A, 0x86, 0x5F, 0xC6, 0xF9,
0x8E, 0x95, 0x24, 0x10, 0x1F, 0x0F, 0x13, 0xE4]),
message: new Uint8Array([
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
]),
hashed: new Uint8Array([
0xbe, 0x45, 0xcb, 0x26, 0x05, 0xbf, 0x36, 0xbe,
0xbd, 0xe6, 0x84, 0x84, 0x1a, 0x28, 0xf0, 0xfd,
0x43, 0xc6, 0x98, 0x50, 0xa3, 0xdc, 0xe5, 0xfe,
0xdb, 0xa6, 0x99, 0x28, 0xee, 0x3a, 0x89, 0x91
]),
signature: {
r: new Uint8Array([
0xF1, 0x78, 0x1C, 0xA5, 0x13, 0x21, 0x0C, 0xBA,
0x6F, 0x18, 0x5D, 0xB3, 0x01, 0xE2, 0x17, 0x1B,
0x67, 0x65, 0x7F, 0xC6, 0x1F, 0x50, 0x12, 0xFB,
0x2F, 0xD3, 0xA4, 0x29, 0xE3, 0xC2, 0x44, 0x9F
]),
s: new Uint8Array([
0x7F, 0x08, 0x69, 0x6D, 0xBB, 0x1B, 0x9B, 0xF2,
0x62, 0x1C, 0xCA, 0x80, 0xC6, 0x15, 0xB2, 0xAE,
0x60, 0x50, 0xD1, 0xA7, 0x1B, 0x32, 0xF3, 0xB1,
0x01, 0x0B, 0xDF, 0xC6, 0xAB, 0xF0, 0xEB, 0x01
])
}
};
describe('Basic Operations', function () {
it('Creating curve from name or oid', function (done) {
for (let name_or_oid in openpgp.enums.curves) {
expect(new elliptic_curves.Curve(name_or_oid)).to.exist;
}
done();
});
it('Creating KeyPair', function () {
const names = ['p256', 'p384', 'p521', 'secp256k1', 'curve25519', 'brainpoolP256r1', 'brainpoolP384r1', 'brainpoolP512r1'];
return Promise.all(names.map(function (name) {
const curve = new elliptic_curves.Curve(name);
return curve.genKeyPair().then(keyPair => {
expect(keyPair).to.exist;
});
}));
});
it('Creating KeyPair from data', function (done) {
for (const name in key_data) {
const pair = key_data[name];
const curve = new elliptic_curves.Curve(name);
expect(curve).to.exist;
const keyPair = curve.keyFromPrivate(pair.priv);
expect(keyPair).to.exist;
const pub = keyPair.getPublic();
expect(pub).to.exist;
expect(openpgp.util.Uint8Array_to_hex(pub)).to.equal(openpgp.util.Uint8Array_to_hex(pair.pub));
}
done();
});
it('Signature verification', function (done) {
const curve = new elliptic_curves.Curve('p256');
const key = curve.keyFromPublic(signature_data.pub);
expect(
key.verify(signature_data.message, signature_data.signature, 8, signature_data.hashed)
).to.eventually.be.true.notify(done);
});
it('Invalid signature', function (done) {
const curve = new elliptic_curves.Curve('p256');
const key = curve.keyFromPublic(key_data.p256.pub);
expect(
key.verify(signature_data.message, signature_data.signature, 8, signature_data.hashed)
).to.eventually.be.false.notify(done);
});
it('Signature generation', function () {
const curve = new elliptic_curves.Curve('p256');
let key = curve.keyFromPrivate(key_data.p256.priv);
return key.sign(signature_data.message, 8, signature_data.hashed).then(async ({ r, s }) => {
const signature = { r: new Uint8Array(r.toArray()), s: new Uint8Array(s.toArray()) };
key = curve.keyFromPublic(key_data.p256.pub);
await expect(
key.verify(signature_data.message, signature, 8, signature_data.hashed)
).to.eventually.be.true;
});
});
it('Shared secret generation', function (done) {
const curve = new elliptic_curves.Curve('p256');
let key1 = curve.keyFromPrivate(key_data.p256.priv);
let key2 = curve.keyFromPublic(signature_data.pub);
const shared1 = openpgp.util.Uint8Array_to_hex(key1.derive(key2).toArrayLike(Uint8Array));
key1 = curve.keyFromPublic(key_data.p256.pub);
key2 = curve.keyFromPrivate(signature_data.priv);
const shared2 = openpgp.util.Uint8Array_to_hex(key2.derive(key1).toArrayLike(Uint8Array));
expect(shared1).to.equal(shared2);
done();
});
});
describe('ECDSA signature', function () {
const verify_signature = async function (oid, hash, r, s, message, pub) {
if (openpgp.util.isString(message)) {
message = openpgp.util.str_to_Uint8Array(message);
} else if (!openpgp.util.isUint8Array(message)) {
message = new Uint8Array(message);
}
const ecdsa = elliptic_curves.ecdsa;
return ecdsa.verify(
oid, hash, { r: new Uint8Array(r), s: new Uint8Array(s) }, message, new Uint8Array(pub), await openpgp.crypto.hash.digest(hash, message)
);
};
const secp256k1_dummy_value = new Uint8Array([
0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]);
const secp256k1_point = new Uint8Array([
0x04,
0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC,
0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07,
0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9,
0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98,
0x48, 0x3A, 0xDA, 0x77, 0x26, 0xA3, 0xC4, 0x65,
0x5D, 0xA4, 0xFB, 0xFC, 0x0E, 0x11, 0x08, 0xA8,
0xFD, 0x17, 0xB4, 0x48, 0xA6, 0x85, 0x54, 0x19,
0x9C, 0x47, 0xD0, 0x8F, 0xFB, 0x10, 0xD4, 0xB8]);
const secp256k1_invalid_point = new Uint8Array([
0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
const secp256k1_invalid_point_format = new Uint8Array([
0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
it('Invalid curve oid', function () {
return Promise.all([
expect(verify_signature(
'invalid oid', 8, [], [], [], []
)).to.be.rejectedWith(Error, /Not valid curve/),
expect(verify_signature(
"\x00", 8, [], [], [], []
)).to.be.rejectedWith(Error, /Not valid curve/)
]);
});
it('Invalid public key', function () {
return Promise.all([
expect(verify_signature(
'secp256k1', 8, [], [], [], []
)).to.be.rejectedWith(Error, /Unknown point format/),
expect(verify_signature(
'secp256k1', 8, [], [], [], secp256k1_invalid_point_format
)).to.be.rejectedWith(Error, /Unknown point format/)
]);
});
it('Invalid point', function (done) {
expect(verify_signature(
'secp256k1', 8, [], [], [], secp256k1_invalid_point
)).to.be.rejectedWith(Error, /Invalid elliptic public key/).notify(done);
});
it('Invalid signature', function (done) {
expect(verify_signature(
'secp256k1', 8, [], [], [], secp256k1_point
)).to.eventually.be.false.notify(done);
});
const p384_message = new Uint8Array([
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
]);
const p384_r = new Uint8Array([
0x9D, 0x07, 0xCA, 0xA5, 0x9F, 0xBE, 0xB8, 0x76,
0xA9, 0xB9, 0x66, 0x0F, 0xA0, 0x64, 0x70, 0x5D,
0xE6, 0x37, 0x40, 0x43, 0xD0, 0x8E, 0x40, 0xA8,
0x8B, 0x37, 0x83, 0xE7, 0xBC, 0x1C, 0x4C, 0x86,
0xCB, 0x3C, 0xD5, 0x9B, 0x68, 0xF0, 0x65, 0xEB,
0x3A, 0xB6, 0xD6, 0xA6, 0xCF, 0x85, 0x3D, 0xA9
]);
const p384_s = new Uint8Array([
0x32, 0x85, 0x78, 0xCC, 0xEA, 0xC5, 0x22, 0x83,
0x10, 0x73, 0x1C, 0xCF, 0x10, 0x8A, 0x52, 0x11,
0x8E, 0x49, 0x9E, 0xCF, 0x7E, 0x17, 0x18, 0xC3,
0x11, 0x11, 0xBC, 0x0F, 0x6D, 0x98, 0xE2, 0x16,
0x68, 0x58, 0x23, 0x1D, 0x11, 0xEF, 0x3D, 0x21,
0x30, 0x75, 0x24, 0x39, 0x48, 0x89, 0x03, 0xDC
]);
it('Valid signature', function (done) {
expect(verify_signature('p384', 8, p384_r, p384_s, p384_message, key_data.p384.pub))
.to.eventually.be.true.notify(done);
});
it('Sign and verify message', function () {
const curve = new elliptic_curves.Curve('p521');
return curve.genKeyPair().then(async keyPair => {
const keyPublic = new Uint8Array(keyPair.getPublic());
const keyPrivate = new Uint8Array(keyPair.getPrivate());
const oid = curve.oid;
const message = p384_message;
return elliptic_curves.ecdsa.sign(oid, 10, message, keyPrivate, await openpgp.crypto.hash.digest(10, message)).then(async signature => {
await expect(elliptic_curves.ecdsa.verify(oid, 10, signature, message, keyPublic, await openpgp.crypto.hash.digest(10, message)))
.to.eventually.be.true;
});
});
});
});
describe('ECDH key exchange', function () {
const decrypt_message = function (oid, hash, cipher, priv, ephemeral, data, fingerprint) {
if (openpgp.util.isString(data)) {
data = openpgp.util.str_to_Uint8Array(data);
} else {
data = new Uint8Array(data);
}
return Promise.resolve().then(() => {
const curve = new elliptic_curves.Curve(oid);
return elliptic_curves.ecdh.decrypt(
new openpgp.OID(curve.oid),
cipher,
hash,
new Uint8Array(ephemeral),
data,
new Uint8Array(priv),
new Uint8Array(fingerprint)
);
});
};
const secp256k1_value = new Uint8Array([
0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]);
const secp256k1_point = new Uint8Array([
0x04,
0x79, 0xBE, 0x66, 0x7E, 0xF9, 0xDC, 0xBB, 0xAC,
0x55, 0xA0, 0x62, 0x95, 0xCE, 0x87, 0x0B, 0x07,
0x02, 0x9B, 0xFC, 0xDB, 0x2D, 0xCE, 0x28, 0xD9,
0x59, 0xF2, 0x81, 0x5B, 0x16, 0xF8, 0x17, 0x98,
0x48, 0x3A, 0xDA, 0x77, 0x26, 0xA3, 0xC4, 0x65,
0x5D, 0xA4, 0xFB, 0xFC, 0x0E, 0x11, 0x08, 0xA8,
0xFD, 0x17, 0xB4, 0x48, 0xA6, 0x85, 0x54, 0x19,
0x9C, 0x47, 0xD0, 0x8F, 0xFB, 0x10, 0xD4, 0xB8]);
const secp256k1_invalid_point = new Uint8Array([
0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]);
const secp256k1_data = new Uint8Array([
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]);
it('Invalid curve oid', function (done) {
expect(decrypt_message(
'', 2, 7, [], [], [], []
)).to.be.rejectedWith(Error, /Not valid curve/).notify(done);
});
it('Invalid ephemeral key', function (done) {
expect(decrypt_message(
'secp256k1', 2, 7, [], [], [], []
)).to.be.rejectedWith(Error, /Unknown point format/).notify(done);
});
it('Invalid elliptic public key', function (done) {
expect(decrypt_message(
'secp256k1', 2, 7, secp256k1_value, secp256k1_invalid_point, secp256k1_data, []
)).to.be.rejectedWith(Error, /Invalid elliptic public key/).notify(done);
});
it('Invalid key data integrity', function (done) {
expect(decrypt_message(
'secp256k1', 2, 7, secp256k1_value, secp256k1_point, secp256k1_data, []
)).to.be.rejectedWith(Error, /Key Data Integrity failed/).notify(done);
});
});
const Q1 = new Uint8Array([
64,
48, 226, 162, 114, 194, 194, 67, 214,
199, 10, 173, 22, 216, 240, 197, 202,
114, 49, 127, 107, 152, 58, 119, 48,
234, 194, 192, 66, 53, 165, 137, 93 ]);
const d1 = new Uint8Array ([
65, 200, 132, 198, 77, 86, 126, 196,
247, 169, 156, 201, 32, 52, 3, 198,
127, 144, 139, 47, 153, 239, 64, 235,
61, 7, 17, 214, 64, 211, 215, 80 ]);
const Q2 = new Uint8Array([
64,
154, 115, 36, 108, 33, 153, 64, 184,
25, 139, 67, 25, 178, 194, 227, 53,
254, 40, 101, 213, 28, 121, 154, 62,
27, 99, 92, 126, 33, 223, 122, 91 ]);
const d2 = new Uint8Array([
123, 99, 163, 24, 201, 87, 0, 9,
204, 21, 154, 5, 5, 5, 127, 157,
237, 95, 76, 117, 89, 250, 64, 178,
72, 69, 69, 58, 89, 228, 113, 112 ]);
const fingerprint1 = new Uint8Array([
177, 183,
116, 123, 76, 133, 245, 212, 151, 243, 236,
71, 245, 86, 3, 168, 101, 74, 209, 105 ]);
const fingerprint2 = new Uint8Array([
177, 83,
123, 123, 76, 133, 245, 212, 151, 243, 236,
71, 245, 86, 3, 168, 101, 74, 209, 105 ]);
async function genPublicEphemeralKey(curve, Q, fingerprint) {
const curveObj = new openpgp.crypto.publicKey.elliptic.Curve(curve);
const oid = new openpgp.OID(curveObj.oid);
const { V, S } = await openpgp.crypto.publicKey.elliptic.ecdh.genPublicEphemeralKey(
curveObj, Q
);
let cipher_algo = curveObj.cipher;
const hash_algo = curveObj.hash;
const param = openpgp.crypto.publicKey.elliptic.ecdh.buildEcdhParam(
openpgp.enums.publicKey.ecdh, oid, cipher_algo, hash_algo, fingerprint
);
cipher_algo = openpgp.enums.read(openpgp.enums.symmetric, cipher_algo);
const Z = await openpgp.crypto.publicKey.elliptic.ecdh.kdf(
hash_algo, S, openpgp.crypto.cipher[cipher_algo].keySize, param, curveObj, false
);
return { V, Z };
}
async function genPrivateEphemeralKey(curve, V, d, fingerprint) {
const curveObj = new openpgp.crypto.publicKey.elliptic.Curve(curve);
const oid = new openpgp.OID(curveObj.oid);
const S = await openpgp.crypto.publicKey.elliptic.ecdh.genPrivateEphemeralKey(
curveObj, V, d
);
let cipher_algo = curveObj.cipher;
const hash_algo = curveObj.hash;
const param = openpgp.crypto.publicKey.elliptic.ecdh.buildEcdhParam(
openpgp.enums.publicKey.ecdh, oid, cipher_algo, hash_algo, fingerprint
);
cipher_algo = openpgp.enums.read(openpgp.enums.symmetric, cipher_algo);
const Z = await openpgp.crypto.publicKey.elliptic.ecdh.kdf(
hash_algo, S, openpgp.crypto.cipher[cipher_algo].keySize, param, curveObj, false
);
return Z;
}
describe('ECDHE key generation', function () {
it('Invalid curve', function (done) {
expect(genPublicEphemeralKey("secp256k1", Q1, fingerprint1)
).to.be.rejectedWith(Error, /Unknown point format/).notify(done);
});
it('Invalid public part of ephemeral key and private key', async function () {
const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
const ECDHE_Z12 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, d2, fingerprint1);
expect(Array.from(ECDHE_Z12).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.false;
});
it('Invalid fingerprint', async function () {
const ECDHE_VZ2 = await genPublicEphemeralKey("curve25519", Q2, fingerprint1);
const ECDHE_Z2 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ2.V, d2, fingerprint2);
expect(Array.from(ECDHE_Z2).join(' ') === Array.from(ECDHE_VZ2.Z).join(' ')).to.be.false;
});
it('Different keys', async function () {
const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
const ECDHE_VZ2 = await genPublicEphemeralKey("curve25519", Q2, fingerprint1);
const ECDHE_Z1 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, d1, fingerprint1);
expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ2.Z).join(' ')).to.be.false;
});
it('Successful exchange', async function () {
const ECDHE_VZ1 = await genPublicEphemeralKey("curve25519", Q1, fingerprint1);
const ECDHE_Z1 = await genPrivateEphemeralKey("curve25519", ECDHE_VZ1.V, d1, fingerprint1);
expect(Array.from(ECDHE_Z1).join(' ') === Array.from(ECDHE_VZ1.Z).join(' ')).to.be.true;
});
});
});