/* * Copyright 2018 Scytl Secure Electronic Voting SA * * All rights reserved * * See our extended copyright notice in *file 'Copyright.txt' which is part of this source code package */ describe('cryptoPRNG...', function() { 'use strict'; describe('should be able to ..', function() { var privateKeyPem = '-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----'; afterEach(function() { cryptoPRNG._privateKeyPem = ''; cryptoPRNG._pinEntropy = 0; cryptoPRNG._usePrivateKeyEntropy = false; }); it('not execute entropy collector if pinEntropy is not a number', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG.Collectors, 'getPrivateKeyCollector') .and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector( privateKeyPem, 'x10'); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); expect(cryptoPRNG.Collectors.getPrivateKeyCollector) .not.toHaveBeenCalled(); }); }); it('execute entropy collector only if pinEntropy is bigger than 0', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG.Collectors, 'getPrivateKeyCollector') .and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector(privateKeyPem, 0); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); expect(cryptoPRNG.Collectors.getPrivateKeyCollector) .not.toHaveBeenCalled(); }); }); it('execute entropy collector only if private key is not empty', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG.Collectors, 'getPrivateKeyCollector') .and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector('', 10); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); expect(cryptoPRNG.Collectors.getPrivateKeyCollector) .not.toHaveBeenCalled(); }); }); it('add private key entropy collector', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG.Collectors, 'getPrivateKeyCollector') .and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector(privateKeyPem, 100); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); expect(cryptoPRNG.Collectors.getPrivateKeyCollector).toHaveBeenCalled(); }); }); it('add entropy from private key pem', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG, '_collectEntropy').and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector(privateKeyPem, 100); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); var privateKey = forge.pki.privateKeyFromPem(privateKeyPem); var args = cryptoPRNG._collectEntropy.calls.argsFor(0); expect(args[0]).toEqual(privateKey.d); expect(args[1]).toEqual(100); }); }); it('throw exception when private key pem is not correct', function() { cryptolib('cryptoprng', function() { var privateKeyPemInvalid = ['Invalid Pem'].join('\n'); spyOn(cryptoPRNG, '_noWindow').and.returnValue(false); spyOn(cryptoPRNG, '_getCrypto').and.returnValue(null); spyOn(cryptoPRNG, 'startEntropyCollection').and.callThrough(); cryptoPRNG.setDataForPrivateKeyEntropyCollector( privateKeyPemInvalid, 100); expect(function() { cryptoPRNG.startEntropyCollection(); }).toThrowError('Invalid PEM formatted message.'); }); }); it('properly handle entropy collection when window is not defined', function() { cryptolib('cryptoprng', function() { spyOn(cryptoPRNG, '_noWindow').and.returnValue(true); spyOn(cryptoPRNG, '_addNonWindowEntropyCollectors') .and.callThrough(); spyOn(cryptoPRNG, '_getCrypto').and.callThrough(); cryptoPRNG.startEntropyCollection(); cryptoPRNG.stopEntropyCollectionAndCreatePRNG(); expect(cryptoPRNG._addNonWindowEntropyCollectors).toHaveBeenCalled(); expect(cryptoPRNG._getCrypto).not.toHaveBeenCalled(); }); }); describe('return percentage of entropy collected ..', function() { it('equal to 100 when max entropy number is reached', function() { cryptolib('cryptoprng', function() { cryptoPRNG._maxEntropyCounter = 300; cryptoPRNG._entropyCounter = cryptoPRNG._maxEntropyCounter; expect(cryptoPRNG.getEntropyCollectedAsPercentage()).toEqual(100); }); }); it('equal to 100 when entropy counter is bigger than max entropy number', function() { cryptolib('cryptoprng', function() { cryptoPRNG._entropyCounter = cryptoPRNG._maxEntropyCounter + 1; expect(cryptoPRNG.getEntropyCollectedAsPercentage()).toEqual(100); }); }); it('equal to 0 when entropy counter is set to 0', function() { cryptolib('cryptoprng', function() { cryptoPRNG._entropyCounter = 0; expect(cryptoPRNG.getEntropyCollectedAsPercentage()).toEqual(0); }); }); it('equal to 50 when entropy counter = max entropy / 2', function() { cryptolib('cryptoprng', function() { cryptoPRNG._maxEntropyCounter = 300; cryptoPRNG._entropyCounter = cryptoPRNG._maxEntropyCounter / 2; expect(cryptoPRNG.getEntropyCollectedAsPercentage()).toEqual(50); }); }); it('equal to 10 when entropy counter is 10% of maximum entropy', function() { cryptolib('cryptoprng', function() { cryptoPRNG._maxEntropyCounter = 300; cryptoPRNG._entropyCounter = cryptoPRNG._maxEntropyCounter / 10; expect(cryptoPRNG.getEntropyCollectedAsPercentage()).toEqual(10); }); }); }); }); });