public static void GetData()
{
client = new Socket(ipAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
ConnectToServer();
SendMessage("3;" + App.compID.ToString());
ReceiveMessage();
string decryptedResponse = aesManager.Decrypt(Convert.FromBase64String(response));
data.Companies = JsonConvert.DeserializeObject <ObservableCollection <Company> >(decryptedResponse.Split(";")[0]);
data.Accounts = JsonConvert.DeserializeObject <ObservableCollection <Account> >(decryptedResponse.Split(";")[1]);
App.chartData = JsonConvert.DeserializeObject <ChartData>(decryptedResponse.Split(";")[2]);
Disconnect();
}
/// <summary>
/// Reads a keyName and passphrase from the server and attempts to answer it.
/// </summary>
/// <param name="client"></param>
/// <param name="packet"></param>
internal static void Passphrase(this ClusterClient client, Packet packet)
{
string keyName = packet.ReadString();
byte[] cypher = Convert.FromBase64String(packet.ReadString());
byte[] iv = Convert.FromBase64String(packet.ReadString());
client.AnswerPassphrase(AESManager.Decrypt(keyName, cypher, iv));
}
private void btnAESDecrypt_Click(object sender, EventArgs e)
{
if (this.IsAESValid())
{
if (!string.IsNullOrEmpty(this.txtAESEncryptedText.Text))
{
AESManager certificateManager = new AESManager(this.txtAESEncryptionKey.Text, this.txtAESSalt.Text);
this.txtAESClearText.Text = certificateManager.Decrypt(this.txtAESEncryptedText.Text);
}
}
}
public string DecryptString(string encryptedString, string decryptionKey, string decryptionSalt)
{
string retVal = string.Empty;
if (!string.IsNullOrEmpty(encryptedString))
{
AESManager internalManager = new AESManager(decryptionKey, decryptionSalt);
retVal = internalManager.Decrypt(encryptedString);
}
return(retVal);
}
/// <summary>
/// Decrypt to a PucksAndProgramming User
/// </summary>
/// <param name="encryptedString">The encrypted string</param>
/// <returns>A PucksAndProgramming user instance</returns>
public PucksAndProgramming.Common.DomainModel.User Decrypt(string encryptedString)
{
PucksAndProgramming.Common.DomainModel.User retVal = null;
if (!string.IsNullOrEmpty(encryptedString))
{
AESManager encryptor = new AESManager(this.EncryptionKey, this.Salt);
string decryptedValue = encryptor.Decrypt(encryptedString);
retVal = PucksAndProgramming.Common.Utilities.SerializationUtilities.DeserializeXmlToObject <PucksAndProgramming.Common.DomainModel.User>(decryptedValue);
}
return(retVal);
}
/// <summary>
/// This method decrypts a string using the configuration settings supplied
/// </summary>
/// <param name="encryptedString">The encrypted string</param>
/// <returns>The passed in string, decrypted</returns>
public string DecryptString(string encryptedString)
{
string retVal = string.Empty;
if (!string.IsNullOrEmpty(encryptedString))
{
switch (this.EncryptionMethod)
{
case EncryptionMethodOptions.None:
retVal = encryptedString;
break;
case EncryptionMethodOptions.AES:
AESConfiguration aesconfiguration = AESConfiguration.GetInstance();
AESManager aesencryption = new AESManager(aesconfiguration.EncryptionKey, aesconfiguration.Salt);
retVal = aesencryption.Decrypt(encryptedString);
break;
case EncryptionMethodOptions.CertificateKeyFile:
KeyFileConfiguration keyfileConfiguration = KeyFileConfiguration.GetInstance();
X509CertificateManager keyfileEncryption = new X509CertificateManager(keyfileConfiguration.KeyFile, keyfileConfiguration.KeyFilePassword);
retVal = keyfileEncryption.Decrypt(encryptedString);
break;
case EncryptionMethodOptions.CertificateKeyStore:
KeyStoreConfiguration keystoreConfiguration = KeyStoreConfiguration.GetInstance();
X509CertificateManager keystoreEncryption = new X509CertificateManager(keystoreConfiguration.StoreName, keystoreConfiguration.StoreLocation, keystoreConfiguration.CertificateName);
retVal = keystoreEncryption.Decrypt(encryptedString);
break;
case EncryptionMethodOptions.RSAXmlKeyFile:
RSAXmlKeyFileConfiguration rsaxmlKeyFileConfiguration = RSAXmlKeyFileConfiguration.GetInstance();
RSAXmlKeyFileManager rsaxmlKeyFileEncryption = new RSAXmlKeyFileManager(rsaxmlKeyFileConfiguration.PublicKeyFile, rsaxmlKeyFileConfiguration.PrivateKeyFile);
retVal = rsaxmlKeyFileEncryption.Decrypt(encryptedString);
break;
}
}
return(retVal);
}
static void Main(string[] args)
{
/*AesCryptoServiceProvider aes = new AesCryptoServiceProvider();
* ICryptoTransform encryptor = aes.CreateEncryptor();
* MemoryStream ms = new MemoryStream();
* CryptoStream cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write);
*
* cs.Dispose();
*
* try
* {
* ms.Write(new byte[] { 0, 0, 0, 0 }, 0, 4);
* }
* catch (Exception e)
* {
* Console.WriteLine($"1. {e.Message}");
* }
*
* try
* {
* encryptor.TransformFinalBlock(new byte[] { 0, 0, 0, 0 }, 0, 4);
* }
* catch (Exception e)
* {
* Console.WriteLine($"2. {e.Message}");
* }
*
* try
* {
* aes.CreateDecryptor();
* }
* catch (Exception e)
* {
* Console.WriteLine($"3. {e.Message}");
* }*/
byte[] buffer = new byte[81920];
byte[] decrypted;
DateTime printed = DateTime.Now;
TimeSpan printSpan = new TimeSpan(0, 0, 1);
int read;
using (FileStream sStream = File.OpenRead(SEND_PATH))
using (FileStream rStream = File.Create(RECEIVE_PATH))
using (AESManager aes1 = new AESManager())
using (AESManager aes2 = new AESManager(aes1.KeyIVPair))
{
while (sStream.Position != sStream.Length)
{
read = sStream.Read(buffer, 0, 81920);
decrypted = aes2.Decrypt(aes1.Encrypt(buffer));
rStream.Write(decrypted, 0, read);
if (DateTime.Now - printed > printSpan)
{
Console.WriteLine($"{sStream.Position}/{sStream.Length} ({(double)sStream.Position / (double)sStream.Length}) 완료...");
printed = DateTime.Now;
}
}
}
Console.WriteLine("파일이 손상없이 암/복호화되었는지 확인합니다...");
FileInfo sent = new FileInfo(SEND_PATH);
FileInfo received = new FileInfo(RECEIVE_PATH);
if (sent.Length != received.Length)
{
Console.WriteLine($"파일의 길이가 다릅니다. (전송한 파일 : {sent.Length}, 받은 파일 : {received.Length})");
return;
}
byte[] sBuffer = new byte[81920], rBuffer = new byte[81920];
try
{
using (FileStream sStream = sent.OpenRead())
using (FileStream rStream = received.OpenRead())
{
while (sStream.Position != sStream.Length)
{
sStream.Read(sBuffer, 0, 81920);
read = rStream.Read(rBuffer, 0, 81920);
for (int i = 0; i < read; ++i)
{
if (sBuffer[i] != rBuffer[i])
{
throw new Exception($"{(sStream.Position - read + i)}에서 ({sStream.Position - 81920} ~ {sStream.Position}) 불일치를 발견하였습니다. (전체 길이 {sent.Length})");
}
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return;
}
Console.WriteLine("파일이 일치합니다.");
Console.ReadKey(false);
}