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encryptedfield-test.js
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encryptedfield-test.js
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const assert = require('assert');
const expect = require('chai').expect;
const {SodiumPlus} = require('sodium-plus');
let sodium;
const BlindIndex = require('../lib/blindindex');
const CipherSweet = require('../lib/ciphersweet');
const EncryptedField = require('../lib/encryptedfield');
const BoringCrypto = require('../lib/backend/boringcrypto');
const FIPSCrypto = require('../lib/backend/fipsrypto');
const ModernCrypto = require('../lib/backend/moderncrypto');
const LastFourDigits = require('../lib/transformation/lastfourdigits');
const StringProvider = require('../lib/keyprovider/stringprovider');
const Util = require('../lib/util');
let buf, fipsEngine, naclEngine, fipsRandom, naclRandom, brngEngine, brngRandom;
let initialized = false;
/**
* @return {Promise<boolean>}
*/
async function initialize() {
if (initialized) return true;
if (!sodium) sodium = await SodiumPlus.auto();
if (!buf) buf = await sodium.randombytes_buf(32);
if (!fipsEngine) fipsEngine = new CipherSweet(
new StringProvider('4e1c44f87b4cdf21808762970b356891db180a9dd9850e7baf2a79ff3ab8a2fc'),
new FIPSCrypto()
);
if (!naclEngine) naclEngine = new CipherSweet(
new StringProvider('4e1c44f87b4cdf21808762970b356891db180a9dd9850e7baf2a79ff3ab8a2fc'),
new ModernCrypto()
);
if (!brngEngine) brngEngine = new CipherSweet(
new StringProvider('4e1c44f87b4cdf21808762970b356891db180a9dd9850e7baf2a79ff3ab8a2fc'),
new BoringCrypto()
);
if (!fipsRandom) fipsRandom = new CipherSweet(
new StringProvider(buf.toString('hex')),
new FIPSCrypto()
);
if (!naclRandom) naclRandom = new CipherSweet(
new StringProvider(buf.toString('hex')),
new ModernCrypto()
)
if (!brngRandom) brngRandom = new CipherSweet(
new StringProvider(buf.toString('hex')),
new BoringCrypto()
);
initialized = true;
return false;
}
// Testing utility function
function getExampleField(backend, longer = false, fast = false)
{
return (new EncryptedField(backend, 'contacts', 'ssn'))
.addBlindIndex(
new BlindIndex(
'contact_ssn_last_four',
[new LastFourDigits()],
longer ? 64 : 16,
fast
)
)
.addBlindIndex(
new BlindIndex(
'contact_ssn_last_4',
[new LastFourDigits()],
longer ? 64 : 16,
fast
)
)
.addBlindIndex(
new BlindIndex(
'contact_ssn',
[],
longer ? 128 : 32,
fast
)
);
}
describe('EncryptedField', function () {
it('Encrypts / decrypts fields successfully', async function () {
if (!initialized) await initialize();
let eF = new EncryptedField(fipsEngine);
let eM = new EncryptedField(naclEngine);
let eB = new EncryptedField(brngEngine);
let message = 'This is a test message: ' + (await Util.randomBytes(16)).toString('hex');
let aad = 'Test AAD:' + (await Util.randomBytes(32)).toString('hex');
let fCipher = await eF.encryptValue(message);
let fDecrypt = await eF.decryptValue(fCipher);
expect(fDecrypt.toString()).to.be.equal(message);
let thrown = false;
try {
await eF.decryptValue(fCipher, aad);
} catch (e) {
thrown = true;
}
assert(thrown, 'exception thrown when AAD supplied erroneously');
let mCipher = await eM.encryptValue(message);
let mDecrypt = await eM.decryptValue(mCipher);
expect(mDecrypt.toString()).to.be.equal(message);
thrown = false;
try {
await eM.decryptValue(mCipher, aad);
} catch (e) {
thrown = true;
}
assert(thrown, 'exception thrown when AAD supplied erroneously');
let bCipher = await eB.encryptValue(message);
let bDecrypt = await eB.decryptValue(bCipher);
expect(bDecrypt.toString()).to.be.equal(message);
thrown = false;
try {
await eB.decryptValue(bCipher, aad);
} catch (e) {
thrown = true;
}
assert(thrown, 'exception thrown when AAD supplied erroneously');
});
it('Blind Indexing (FIPSCrypto)', async function () {
if (!initialized) await initialize();
let ssn = getExampleField(fipsEngine).setTypedIndexes(true);
ssn.getBlindIndex('111-11-1111', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("idlzpypmia6qu");
expect(example.value).to.be.equal("334b");
});
ssn.getBlindIndex('111-11-2222', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("idlzpypmia6qu");
expect(example.value).to.be.equal("7947");
});
ssn.getBlindIndex('123-45-6788', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("idlzpypmia6qu");
expect(example.value).to.be.equal("d5ac");
});
ssn.getBlindIndex('123-45-6789', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("idlzpypmia6qu");
expect(example.value).to.be.equal("a88e");
});
ssn.getBlindIndex('invalid guess 123', 'contact_ssn')
.then((example) => {
expect(example.type).to.be.equal("stfodrsbpd4ls");
expect(example.value).to.be.equal("ee10e07b");
});
ssn.getBlindIndex('123-45-6789', 'contact_ssn')
.then((example) => {
expect(example.type).to.be.equal("stfodrsbpd4ls");
expect(example.value).to.be.equal("9a15fe14");
});
let random = getExampleField(fipsRandom, true);
random.getBlindIndex('123-45-6789', 'contact_ssn')
.then((example) => {
expect(example).to.not.equal("ee10e07b213a922075a6ada22514528c");
});
});
it('Blind Indexing (ModernCrypto)', async function () {
if (!initialized) await initialize();
let ssn = getExampleField(naclEngine).setTypedIndexes(true);
ssn.getBlindIndex('111-11-1111', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("3dywyifwujcu2");
expect(example.value).to.be.equal("32ae");
});
ssn.getBlindIndex('111-11-2222', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("3dywyifwujcu2");
expect(example.value).to.be.equal("e538");
});
ssn.getBlindIndex('123-45-6788', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("3dywyifwujcu2");
expect(example.value).to.be.equal("8d1a");
});
ssn.getBlindIndex('123-45-6789', 'contact_ssn_last_four')
.then((example) => {
expect(example.type).to.be.equal("3dywyifwujcu2");
expect(example.value).to.be.equal("2acb");
});
ssn.getBlindIndex('invalid guess 123', 'contact_ssn')
.then((example) => {
expect(example.type).to.be.equal("2iztg3wbd7j5a");
expect(example.value).to.be.equal("499db508");
});
ssn.getBlindIndex('123-45-6789', 'contact_ssn')
.then((example) => {
expect(example.type).to.be.equal("2iztg3wbd7j5a");
expect(example.value).to.be.equal("311314c1");
});
let random = getExampleField(naclRandom, true);
random.getBlindIndex('123-45-6789', 'contact_ssn')
.then((example) => {
expect(example).to.not.equal("499db5085e715c2f167c1e2c02f1c80f");
});
});
});