public static Encryption CreateClientGame(GameEncryptionType type, uint seed)
{
IEncryptor encryptor;
IDecryptor decryptor;
switch (type)
{
case GameEncryptionType.None:
encryptor = new NoEncryption();
decryptor = new Huffman();
break;
case GameEncryptionType.Old: // Blowfish
encryptor = new BlowfishEncryption();
decryptor = new Huffman();
break;
case GameEncryptionType.Rare: // Blowfish + Twofish
encryptor = new BlowfishTwofishEncryption(seed);
decryptor = new Huffman();
break;
case GameEncryptionType.New: // Twofish + MD5
encryptor = new TwofishEncryption(seed);
decryptor = new HuffmanMD5Encryption(seed);
break;
default:
throw new Exception("Internal error.");
}
return new Encryption(encryptor, decryptor);
}
/// <summary>
/// Read meta information <see cref="Entity"/>
/// </summary>
/// <param name="stream">Stream.</param>
/// <param name="decryptor">Decryptor.</param>
/// <param name="decryptIndexBlock">Index Decrypt Block.</param>
/// <param name="endian">File endian.</param>
/// <param name="version">File version.</param>
/// <returns></returns>
public static Entity Read(Stream stream, IDecryptor decryptor, ref ulong decryptIndexBlock, Endian endian)
{
var cryptBlockCount = 0ul;
var nextDecrIndex = 0ul;
var type = decryptor.ReadInt32(stream, decryptIndexBlock + cryptBlockCount, ref nextDecrIndex, endian);
var blockSize = (ulong)Marshal.SizeOf(type);
cryptBlockCount += (blockSize + Decryptor.CryptBlockSize - 1) / Decryptor.CryptBlockSize;
var size = decryptor.ReadInt32(stream, decryptIndexBlock + cryptBlockCount, ref nextDecrIndex, endian);
blockSize = (ulong)Marshal.SizeOf(size);
cryptBlockCount += (blockSize + Decryptor.CryptBlockSize - 1) / Decryptor.CryptBlockSize;
var startDecryptIndexBlock = decryptIndexBlock + cryptBlockCount;
var offset = stream.Position;
cryptBlockCount += (ulong)((size + Decryptor.CryptBlockSize - 1) / Decryptor.CryptBlockSize);
stream.Seek(size, SeekOrigin.Current);
decryptIndexBlock += cryptBlockCount;
return(new Entity
{
Type = type,
Size = size,
OffsetRawBlock = offset,
DecryptIndexBlock = startDecryptIndexBlock,
});
}
static void Main(string[] args)
{
DecryptorFactory decryptorFactory = new DecryptorFactory();
IDecryptor applicationDecryptor = decryptorFactory.CreateDecryptor();
AuthorizerFactory authorizerFactory = new AuthorizerFactory();
IAuthorizer applicationAuthorizer = authorizerFactory.CreateAuthorizer();
Context applicationContext = new Context(applicationDecryptor, applicationAuthorizer);
UI userInterface = new UI();
bool readAnotherFile = false;
do
{
applicationContext = userInterface.AddUserInfoToContext(applicationContext);
// handles opening file and displaying content to the console
FileReader ApplicationFileReader = new FileReader(applicationContext);
ApplicationFileReader.DisplayContent();
// ask user if application should read another file
readAnotherFile = userInterface.AskReadAnotherFile();
} while (readAnotherFile);
}
// Constructor.
public LetsKodeUiComponent
(
ITestBackgroundDataProvider <UserRole, TestEnvironment> testBackgroundDataProvider,
IDecryptor decryptor = null
)
: base(testBackgroundDataProvider, decryptor)
{
}
// To match the ISerializer<T> interface we must take passphrase and salt as parameter
// restricting the usages of this class' instances.
public EncryptionSerializer(ISerializer <T> serializer, IEncryptor encryptor, IDecryptor decryptor, SecureString passphrase, string salt)
{
_serializer = serializer;
_encryptor = encryptor;
_decryptor = decryptor;
_passphrase = passphrase;
_salt = salt;
}
public Encryption(IEncryptor enc, IDecryptor dec)
{
if (enc == null) throw new ArgumentNullException("enc");
if (dec == null) throw new ArgumentNullException("dec");
encryptor = enc;
decryptor = dec;
}
public void Setup()
{
IAlgorithmFactory algorithmFactory = new GenericAlgorithmFactory <AesManaged>();
ICryptoSettings settings = new Settings();
encryptor = new StringEncryptor(algorithmFactory, settings);
decryptor = new StringDecryptor(algorithmFactory, settings);
}
// Constructor.
public SignInFlowComponent
(
ITestBackgroundDataProvider <UserRole, TestEnvironment> testBackgroundDataProvider,
IDecryptor decryptor
)
: base(testBackgroundDataProvider, decryptor)
{
}
public void DecryptFile(string filePath)
{
if (File.Exists(filePath) && !IsPlainText(filePath))
{
IDecryptor decryptor = _keyProvider.GetDecryptor();
byte[] decryptedbytes = decryptor.Transform(File.ReadAllBytes(filePath));
File.WriteAllBytes(filePath, decryptedbytes);
}
}
private void DecryptWorkerDoWork(object sender, DoWorkEventArgs e)
{
TimeSpan ts;
const int timeSlice = 50;
const int nrOfSpeedMeasurements = 50;
ulong passwordCount = 0, prevPasswordCount = 0;
object[] args = (object[])e.Argument;
IDecryptor decryptor = DecryptorFactory.Get((EncryptionRecord)args[0]);
IPasswordIterator passwordIterator = (IPasswordIterator)args[1];
ValidationMode validationMode = (ValidationMode)args[2];
IMovingAverage avg = new SimpleMovingAverage(nrOfSpeedMeasurements);
PasswordValidity passwordValidity = PasswordValidity.Invalid;
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
string currentPassword = passwordIterator.GetNextPassword();
while (!string.IsNullOrEmpty(currentPassword) &&
validationMode != ValidationMode.None &&
!decryptBackgroundWorker.CancellationPending)
{
passwordValidity = decryptor.ValidatePassword(currentPassword, validationMode);
passwordCount++;
ts = stopWatch.Elapsed;
if (ts.Milliseconds > timeSlice || passwordValidity != PasswordValidity.Invalid)
{
avg.AddSample((60000 * (passwordCount - prevPasswordCount)) / ((ulong)ts.Milliseconds + 1)); //Avoid div by zero
decryptBackgroundWorker.ReportProgress(0, new object[]
{ passwordValidity, currentPassword, (ulong)avg.Average, passwordCount });
prevPasswordCount = passwordCount;
stopWatch.Restart();
if ((passwordValidity & PasswordValidity.OwnerPasswordIsValid) == PasswordValidity.OwnerPasswordIsValid)
{
validationMode &= ~ValidationMode.ValidateOwnerPassword;
}
if ((passwordValidity & PasswordValidity.UserPasswordIsValid) == PasswordValidity.UserPasswordIsValid)
{
validationMode &= ~ValidationMode.ValidateUserPassword;
}
}
currentPassword = passwordIterator.GetNextPassword();
}
if (decryptBackgroundWorker.CancellationPending)
{
e.Cancel = true;
}
else
{
e.Result = passwordCount;
}
}
public IConfigurationStore Initialize(
IConfigurationValidator validator = null,
IErrorLogger errorLogger = null,
IDecryptor decryptor = null)
{
_validator = validator ?? new DefaultValidator();
_errorLogger = errorLogger ?? new DefaultErrorLogger();
_decryptor = decryptor ?? new DefaultDecryptor();
return(this);
}
public int SetDecryptor(string dll)
{
Decrypt = Decryptor.Decryptor.InitDecryptDll(dll);
if (Decrypt == null)
{
Console.WriteLine("Unable to load the decryptor dll!");
return(-1);
}
return(Decrypt.DecryptInit());
}
public AuthBasicFeature()
{
this.dataProvider = new InsuranceOneTestBackgroundDataProvider();
this.decryptor = new DummyDecryptor();
this.signInComponent
= new SignInFlowComponent <UserRole, TestEnvironment>
(
this.dataProvider,
this.decryptor
);
}
internal static T Decrypt <T>(Encrypted encrypted, IDecryptor decryptor)
{
var plaintext = decryptor.Decrypt(encrypted).ToUtf8();
try
{
return(JsonConvert.DeserializeObject <T>(plaintext));
}
catch (JsonException e)
{
throw new InternalErrorException("Failed to parse JSON", e);
}
}
static void Main(string[] args)
{
// TODO - change with your decryptor
IDecryptor decryptor = null;
var uplink = new Uplink(decryptor);
var results = uplink.Run();
results.ForEach(Console.WriteLine);
Console.WriteLine("\nPress Enter to exit...");
Console.ReadLine();
}
public void PrintFile(string filePath)
{
if (File.Exists(filePath) && !IsPlainText(filePath))
{
IDecryptor decryptor = _keyProvider.GetDecryptor();
byte[] decryptedBytes = decryptor.Transform(File.ReadAllBytes(filePath));
_printer.Print(Encoding.ASCII.GetString(decryptedBytes));
}
else
{
_printer.Print(File.ReadAllText(filePath));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Connection"/> class.
/// </summary>
/// <param name="socket">The socket.</param>
/// <param name="encryptor">The encryptor.</param>
/// <param name="decryptor">The decryptor.</param>
public Connection(Socket socket, IEncryptor encryptor, IDecryptor decryptor)
{
this.socket = socket;
this.remoteEndPoint = socket.RemoteEndPoint;
this.encryptor = encryptor;
this.decryptor = decryptor;
encryptor?.Reset();
decryptor?.Reset();
this.receiveEventArgs = new SocketAsyncEventArgs();
this.receiveEventArgs.SetBuffer(this.buffer, 0, this.buffer.Length);
this.receiveEventArgs.Completed += (sender, args) => this.EndReceive(args);
}
public static Either <Response <ErrorCode>, Response <T> > Read <T>(IDecryptor decryptorLeft,
IDecryptor decryptorRight, NetMQMessage message)
{
// Frame 0: Message type
// Frame 1: Payload
Debug.Assert(message.FrameCount == 2);
var type = (MessageType)message.First.ConvertToInt32();
return(type == MessageType.Error
? (Either <Response <ErrorCode>, Response <T> >) new Left <Response <ErrorCode>, Response <T> >(
Read <ErrorCode>(decryptorLeft, message))
: new Right <Response <ErrorCode>, Response <T> >(Read <T>(decryptorRight, message)));
}
public Encryption(IEncryptor enc, IDecryptor dec)
{
if (enc == null)
{
throw new ArgumentNullException("enc");
}
if (dec == null)
{
throw new ArgumentNullException("dec");
}
encryptor = enc;
decryptor = dec;
}
public DbSettingsBridge(IOptionsSnapshot <DbSettings> dbSettings, ISettingsValidator validator, IDecryptor decryptor)
{
_dbSettings = dbSettings ?? throw new ArgumentNullException(nameof(dbSettings));
_decryptor = decryptor ?? throw new ArgumentException(nameof(decryptor));
if (validator == null)
{
throw new ArgumentNullException(nameof(validator));
}
if (!validator.TryValidate(dbSettings.Value, out var validationException))
{
throw validationException;
}
}
private static ICollection <Entity> ReadEntities(IDecryptor decryptor, string fileName)
{
using (var stream = File.OpenRead(fileName))
{
var header = ReadHeader(stream);
var endian = GetEndian(header.Version);
var cryptBlockIndex = 0ul;
var countEntities = decryptor.ReadInt32(stream, cryptBlockIndex, ref cryptBlockIndex, endian);
return(Enumerable.Range(0, countEntities)
.Select(v => Entity.Read(stream, decryptor, ref cryptBlockIndex, endian))
.ToArray());
}
}
public FileContainer(string filePath, ILogger logger = null)
{
FilePath = filePath;
_logger = logger;
if (!File.Exists(FilePath))
{
_logger?.LogCritical("File not found: {filePath}.", filePath);
throw new FileNotFoundException("File not found.", filePath);
}
Initialize();
_decryptor = new Decryptor(Header.Seed);
}
public static Response <T> Read <T>(IDecryptor decryptor, NetMQMessage message)
{
// Frame 0: Message type
// Frame 1: Payload
Debug.Assert(message.FrameCount == 2);
var type = (MessageType)message.Pop().ConvertToInt32();
var payload = default(T);
if (!message.First.IsEmpty)
{
payload = JsonConvert.DeserializeObject <T>(decryptor.Decrypt(message.Pop().ToByteArray()));
}
return(new Response <T>(type, payload));
}
private void Setup(string cryptoId)
{
_cryptoMock = new Mock <ICrypto>();
_encryptor = new Mock <IEncryptor>().Object;
_decryptor = new Mock <IDecryptor>().Object;
_cryptoMock.Setup(f => f.CanEncrypt(cryptoId)).Returns(true);
_cryptoMock.Setup(f => f.CanEncrypt(It.Is <string>(s => s != cryptoId))).Returns(false);
_cryptoMock.Setup(f => f.Encrypt(It.IsAny <string>(), It.IsAny <string>())).Returns($"EncryptedString : {cryptoId}");
_cryptoMock.Setup(f => f.Encrypt(It.IsAny <byte[]>(), It.IsAny <string>())).Returns(Encoding.UTF8.GetBytes(cryptoId));
_cryptoMock.Setup(f => f.GetEncryptor(cryptoId)).Returns(_encryptor);
_cryptoMock.Setup(f => f.CanDecrypt(cryptoId)).Returns(true);
_cryptoMock.Setup(f => f.CanDecrypt(It.Is <string>(s => s != cryptoId))).Returns(false);
_cryptoMock.Setup(f => f.Decrypt(It.IsAny <string>(), It.IsAny <string>())).Returns($"DecryptedString : {cryptoId}");
_cryptoMock.Setup(f => f.Decrypt(It.IsAny <byte[]>(), It.IsAny <string>())).Returns(Encoding.UTF8.GetBytes(cryptoId));
_cryptoMock.Setup(f => f.GetDecryptor(cryptoId)).Returns(_decryptor);
}
public ClientAuthorization(
IDecryptor decryptor,
IEncryptor encryptor,
IServiceContext serviceContext,
IRepository <AuthorizationInfo> authorizationInfoRepo)
{
_decryptor = decryptor;
_authorizationInfoRepo = authorizationInfoRepo;
_encryptor = encryptor;
_serviceContext = serviceContext;
// 初始化授权数据并保存到缓存中
var authorizationCaches = _authorizationInfoRepo.GetAllList().Select(p => {
return(new AuthorizationCache(p, _serviceContext));
}).ToList();
_auths = authorizationCaches;
}
public static Int32 ReadInt32(
this IDecryptor decryptor,
Stream stream,
ulong cryptBlockIndex,
ref ulong nextCryptBlockIndex,
Endian endian
)
{
var buffer = stream.FillBuffer(4);
decryptor.Decrypt(buffer, cryptBlockIndex, ref nextCryptBlockIndex);
if (endian == Endian.Big)
{
Array.Reverse(buffer);
}
return(BitConverter.ToInt32(buffer, 0));
}
private static void ProcessDecryptCommand(DecryptVerbOptions options)
{
string inputFilePath = options.InputFilePath;
Console.Out.WriteLine($@"The file ""{Path.GetFileName(inputFilePath)}"" is being decrypted...");
byte[] inputByteArray = File.ReadAllBytes(options.InputFilePath);
byte[] keyByteArray = File.ReadAllBytes(options.KeyPath);
IDecryptor desDecryptor = CryptoFactory.CreateDecryptor(inputByteArray, keyByteArray);
byte[] decryptedData = desDecryptor.DecryptData();
GenerateOutputFileNameIfNotSet(options);
FileStream outputFileStream = File.OpenWrite(options.OutputFilePath);
outputFileStream.Write(decryptedData, 0, decryptedData.Length);
Console.Out.WriteLine($"The result file is: {Path.GetFileName(options.OutputFilePath)}");
}
public virtual byte[] DecryptByteArray(byte[] b)
{
try {
MemoryStream ba = new MemoryStream();
IDecryptor dec = securityHandler.GetDecryptor();
byte[] b2 = dec.Update(b, 0, b.Length);
if (b2 != null)
{
ba.Write(b2);
}
b2 = dec.Finish();
if (b2 != null)
{
ba.Write(b2);
}
return(ba.ToArray());
}
catch (System.IO.IOException e) {
throw new PdfException(PdfException.PdfEncryption, e);
}
}
public IEnumerable <byte[]> GetDataBlocks(IDecryptor decryptor)
{
byte[] buf = null;
while (true)
{
if (buf != null)
{
//yield return decryptor.DecryptBlock(buf, false);
yield return(buf);
}
byte tag = this._binaryReader.ReadByte();
if (tag != 0x42)
{
yield break;
}
IFileStreamHandler <IDictionary <string, object> > dataHandler =
this._handlerFactory.GetHandler <IDictionary <string, object> >(tag);
IDictionary <string, object> contentDirectory = dataHandler.Handle(this._binaryReader);
contentDirectory.TryGetValue("type", out var typeValue);
string typeValueString = typeValue as string;
if (!"data".Equals(typeValueString))
{
if ("metadata".Equals(typeValueString))
{
contentDirectory.TryGetValue("file_md5", out var md5Value);
string md5String = md5Value as string;
if (md5String != null)
{
this._contentHash = md5String;
}
}
yield break;
}
buf = (byte[])contentDirectory["data"];
}
}
public static Request <T> Read <T>(IDecryptor decryptor, NetMQMessage message)
{
// Frame 0: RequesterID
// Frame 1: Empty
// Frame 2: Message type
// Frame 3: Payload
Debug.Assert(message.FrameCount == 4);
var requester = message.Pop().ToByteArray();
message.Pop(); // Empty frame
var type = (MessageType)message.Pop().ConvertToInt32();
var payload = default(T);
if (!message.First.IsEmpty)
{
payload = JsonConvert.DeserializeObject <T>(decryptor.Decrypt(message.Pop().ToByteArray()));
}
return(new Request <T>(requester, type, payload));
}
public static Request <object> Read(IDecryptor decryptor, NetMQMessage message)
{
return(Read <object>(decryptor, message));
}
internal static T Decrypt <T>(R.Encrypted encrypted, IDecryptor decryptor)
{
return(Decrypt <T>(Encrypted.Parse(encrypted), decryptor));
}
public static Encryption CreateClientLogin(LoginEncryptionType type, uint seed, uint key1, uint key2)
{
IEncryptor encryptor;
IDecryptor decryptor;
switch (type)
{
case LoginEncryptionType.None:
NoEncryption encryption = new NoEncryption();
encryptor = encryption;
decryptor = encryption;
break;
case LoginEncryptionType.Old:
case LoginEncryptionType.Rare:
throw new Exception("Unsupported login encryption.");
case LoginEncryptionType.New:
encryptor = new LoginEncryption(seed, key1, key2);
decryptor = new NoEncryption();
break;
default:
throw new Exception("Internal error.");
}
return new Encryption(encryptor, decryptor);
}
