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mymonero-core-js/tests/ecdh.spec.js

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// Copyright (c) 2014-2018, MyMonero.com
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
const JSBigInt = require("../cryptonote_utils/biginteger").BigInteger;
const monero_utils = require("../").monero_utils;
it("ecdh_roundtrip", () => {
const test_amounts = [
new JSBigInt(1),
new JSBigInt(1),
new JSBigInt(2),
new JSBigInt(3),
new JSBigInt(4),
new JSBigInt(5),
new JSBigInt(10000),
new JSBigInt("10000000000000000000"),
new JSBigInt("10203040506070809000"),
new JSBigInt("123456789123456789"),
];
for (const amount of test_amounts) {
const k = monero_utils.skGen();
const scalar = monero_utils.skGen(); /*?*/
const amt = monero_utils.d2s(amount.toString());
const t0 = {
mask: scalar,
amount: amt,
};
// both are strings so we can shallow copy
let t1 = { ...t0 };
t1 = monero_utils.encode_rct_ecdh(t1, k);
t1 = monero_utils.decode_rct_ecdh(t1, k);
expect(t1.mask).toEqual(t0.mask);
expect(t1.amount).toEqual(t0.amount);
}
});