/// Generates a unique encryption vector
public static byte[] GenerateEncryptionVector()
{
//Generate a Vector
RijndaelManaged rm = new RijndaelManaged();
rm.GenerateIV();
return rm.IV;
}
static void Main(string[] args)
{
using (var rijndael = new RijndaelManaged())
using (var hmacsha256 = new HMACSHA256())
{
rijndael.GenerateKey();
rijndael.GenerateIV();
hmacsha256.Initialize();
Console.WriteLine(template, new SoapHexBinary(rijndael.Key), new SoapHexBinary(rijndael.IV), new SoapHexBinary(hmacsha256.Key));
}
Console.WriteLine("press any key to exit...");
Console.ReadKey();
}
// create Rijndael initialization vector
private static byte[] CreateRijndaelIv()
{
byte[] rijndaelIv;
using (var myRijndael = new RijndaelManaged())
{
myRijndael.Mode = CipherMode.CBC;
myRijndael.KeySize = 256;
myRijndael.BlockSize = 256;
myRijndael.Padding = PaddingMode.Zeros;
myRijndael.GenerateIV();
rijndaelIv = myRijndael.IV;
}
return rijndaelIv;
}
public static string Encrypt(string input, string keyy)
{
byte[] key, data = System.Text.Encoding.UTF8.GetBytes(input), encdata;
try
{
using (var md5 = new MD5CryptoServiceProvider())
{
key = md5.ComputeHash(Encoding.UTF8.GetBytes(keyy));
}
using (var ms = new MemoryStream())
{
using (var rd = new RijndaelManaged())
{
rd.Key = key;
rd.GenerateIV();
byte[] iv = rd.IV;
using (var cs = new CryptoStream(ms, rd.CreateEncryptor(), CryptoStreamMode.Write))
{
ms.Write(iv, 0, iv.Length); // write first 16 bytes IV, followed by encrypted message
cs.Write(data, 0, data.Length);
cs.FlushFinalBlock();
}
iv = null;
}
encdata = ms.ToArray();
}
return(Convert.ToBase64String(encdata));
}
catch
{
return(string.Empty);
}
finally
{
encdata = null;
data = null;
key = null;
}
}
public void RijndaelExample()
{
string original = "Here is some data to encrypt!";
// Create a new instance of the RijndaelManaged
// class. This generates a new key and initialization
// vector (IV).
using (var myRijndael = new RijndaelManaged()) {
myRijndael.GenerateKey();
myRijndael.GenerateIV();
// Encrypt the string to an array of bytes.
byte[] encrypted;
var encryptor = myRijndael.CreateEncryptor(myRijndael.Key, myRijndael.IV);
// Create the streams used for encryption.
using (var msEncrypt = new MemoryStream()) {
using (var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)) {
using (var swEncrypt = new StreamWriter(csEncrypt)) {
//Write all data to the stream.
swEncrypt.Write(original);
}
encrypted = msEncrypt.ToArray();
}
}
// Decrypt the bytes to a string.
string plaintext = null;
var decryptor = myRijndael.CreateDecryptor(myRijndael.Key, myRijndael.IV);
// Create the streams used for decryption.
using (var msDecrypt = new MemoryStream(encrypted)) {
using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read)) {
using (var srDecrypt = new StreamReader(csDecrypt)) {
// Read the decrypted bytes from the decrypting stream
// and place them in a string.
plaintext = srDecrypt.ReadToEnd();
}
}
}
//Display the original data and the decrypted data.
Assert.AreEqual(plaintext, original);
}
}
public static byte[] Encrypt(byte[] input, byte[] keyy)
{
byte[] key, data = input, encdata;
try
{
using (var md5 = new MD5CryptoServiceProvider())
{
key = md5.ComputeHash(keyy);
}
using (var ms = new MemoryStream())
{
using (var rd = new RijndaelManaged())
{
rd.Key = key;
rd.GenerateIV();
byte[] iv = rd.IV;
using (var cs = new CryptoStream(ms, rd.CreateEncryptor(), CryptoStreamMode.Write))
{
ms.Write(iv, 0, iv.Length); // write first 16 bytes IV, followed by encrypted message
cs.Write(data, 0, data.Length);
cs.FlushFinalBlock();
}
iv = null;
}
encdata = ms.ToArray();
}
return(encdata);
}
catch
{
return(new byte[0]);
}
finally
{
encdata = null;
data = null;
key = null;
}
}
/// <summary>
/// Encrypts and encodes a string value.
/// </summary>
/// <param name="data">The string you wish to encrypt.</param>
/// <returns>The encrypted and encoded string.</returns>
public string encrypt(string data)
{
string encrypted_text = "";
byte[] encrypted_bytes = new byte[0];
switch (this.cipher)
{
case CIPHER_AES128:
RijndaelManaged myRijndael = new RijndaelManaged();
// setting the key here lets Rijndael know how many bits to use for the IV
myRijndael.Key = this.key;
// create a random IV
myRijndael.GenerateIV();
// encrypt our data string
byte[] aes = encryptAES128(data, myRijndael.Key, myRijndael.IV);
// concatenate the IV and the encrypted bytes so PHP can decrypt them later
encrypted_bytes = new byte[myRijndael.IV.Length + aes.Length];
Buffer.BlockCopy(myRijndael.IV, 0, encrypted_bytes, 0, myRijndael.IV.Length);
Buffer.BlockCopy(aes, 0, encrypted_bytes, myRijndael.IV.Length, aes.Length);
break;
case CIPHER_RC4:
encrypted_bytes = encryptRC4(data, this.key);
break;
}
// encode our concatenated byte array to the apropriate string format
switch (this.encoder)
{
case ENCODE_HEX:
encrypted_text = bin2hex(encrypted_bytes);
break;
case ENCODE_BASE64:
encrypted_text = Convert.ToBase64String(encrypted_bytes);
break;
}
// return the string
return(encrypted_text);
}
/// <summary>
/// 获得初始向量IV
/// </summary>
/// <returns>初试向量IV</returns>
private static byte[] GetLegalIV()
{
string sTemp = "E4ghj*Ghg7!rNIfb&95GUY86GfghUb#er57HBh(u％g6HJ($jhWk7&!hg4ui％$hjk";
mobjCryptoService.GenerateIV();
byte[] bytTemp = mobjCryptoService.IV;
int IVLength = bytTemp.Length;
if (sTemp.Length > IVLength)
{
sTemp = sTemp.Substring(0, IVLength);
}
else if (sTemp.Length < IVLength)
{
sTemp = sTemp.PadRight(IVLength);
}
return(ASCIIEncoding.ASCII.GetBytes(sTemp));
}
public EncryptedMessage Encrypt <T>(T obj)
{
_aes.GenerateIV();
using (MemoryStream memoryStream = new MemoryStream())
{
using (CryptoStream cryptoStream = new CryptoStream(memoryStream, _aes.CreateEncryptor(), CryptoStreamMode.Write))
{
byte[] bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(obj));
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
return(new EncryptedMessage
{
IV = _aes.IV,
CipherText = memoryStream.ToArray()
});
}
}
}
/// <summary>
/// Encrypts a message with AES with a given key and a random salt that gets encoded as the first 16 bytes of the encrypted buffer
/// </summary>
/// <param name="clearStream">The stream to be encrypted</param>
/// <param name="clientId">The clientId whose AES key to use</param>
/// <returns>The encrypted stream with encoded salt</returns>
public static Stream EncryptStream(Stream clearStream, uint clientId)
{
using (RijndaelManaged aes = new RijndaelManaged())
{
aes.Key = NetworkingManager.singleton.isServer ? NetworkingManager.singleton.ConnectedClients[clientId].AesKey : NetworkingManager.singleton.clientAesKey;
aes.GenerateIV();
using (CryptoStream cs = new CryptoStream(clearStream, aes.CreateEncryptor(), CryptoStreamMode.Read))
{
using (PooledBitStream outStream = PooledBitStream.Get())
{
outStream.Write(aes.IV, 0, 16);
outStream.CopyFrom(cs);
return(outStream);
}
}
}
}
public (byte[] IV, byte[] Key) GenerateKeys(bool overwriteInstanceKeys)
{
using (var rijndaelManaged = new RijndaelManaged())
{
Configurate(rijndaelManaged);
rijndaelManaged.GenerateIV();
rijndaelManaged.GenerateKey();
if (overwriteInstanceKeys)
{
_settings.IV = rijndaelManaged.IV;
_settings.Key = rijndaelManaged.Key;
}
return(rijndaelManaged.IV, rijndaelManaged.Key);
}
}
public static string EncryptMessage(byte[] text, string key)
{
RijndaelManaged aes = new RijndaelManaged();
aes.KeySize = 256;
aes.BlockSize = 256;
aes.Padding = PaddingMode.Zeros;
aes.Mode = CipherMode.CBC;
aes.Key = Encoding.Default.GetBytes(key);
aes.GenerateIV();
string IV = ("-[--IV-[-" + Encoding.Default.GetString(aes.IV));
ICryptoTransform AESEncrypt = aes.CreateEncryptor(aes.Key, aes.IV);
byte[] buffer = text;
return Convert.ToBase64String(Encoding.Default.GetBytes(Encoding.Default.GetString(AESEncrypt.TransformFinalBlock(buffer, 0, buffer.Length)) + IV));
}
public byte[] GenerateAesKeys()
{
try
{
using (RijndaelManaged myRijndael = new RijndaelManaged())
{
myRijndael.GenerateIV();
this.initializationVector = myRijndael.IV;
this.GetAESKey(myRijndael);
}
}
catch (Exception e)
{
Console.WriteLine("Error: {0}", e.Message);
}
return(this.initializationVector);
}
/// <summary>
/// 获得初始向量IV
/// </summary>
/// <returns>初试向量IV</returns>
private static byte[] GetLegalIV()
{
string sTemp = IV;
myRijndael.GenerateIV();
byte[] bytTemp = myRijndael.IV;
int IVLength = bytTemp.Length;
if (sTemp.Length > IVLength)
{
sTemp = sTemp.Substring(0, IVLength);
}
else if (sTemp.Length < IVLength)
{
sTemp = sTemp.PadRight(IVLength, ' ');
}
return(ASCIIEncoding.ASCII.GetBytes(sTemp));
}
//Prevoius
//public string EncryptString(string text)
//{
// try
// {
// var key = Encoding.UTF8.GetBytes(keyString);
// using (var aesAlg = Aes.Create())
// {
// using (var encryptor = aesAlg.CreateEncryptor(key, aesAlg.IV))
// {
// using (var msEncrypt = new MemoryStream())
// {
// using (var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
// using (var swEncrypt = new StreamWriter(csEncrypt))
// {
// swEncrypt.Write(text);
// }
// var iv = aesAlg.IV;
// var decryptedContent = msEncrypt.ToArray();
// var result = new byte[iv.Length + decryptedContent.Length];
// Buffer.BlockCopy(iv, 0, result, 0, iv.Length);
// Buffer.BlockCopy(decryptedContent, 0, result, iv.Length, decryptedContent.Length);
// return Convert.ToBase64String(result);
// }
// }
// }
// }
// catch (Exception ex)
// {
// return ex.Message;
// }
//}
//// Previous
//public string DecryptString(string cipherText)
//{
// try
// {
// var fullCipher = Convert.FromBase64String(cipherText);
// var iv = new byte[16];
// var cipher = new byte[16];
// Buffer.BlockCopy(fullCipher, 0, iv, 0, iv.Length);
// Buffer.BlockCopy(fullCipher, iv.Length, cipher, 0, iv.Length);
// var key = Encoding.UTF8.GetBytes(keyString);
// using (var aesAlg = Aes.Create())
// {
// using (var decryptor = aesAlg.CreateDecryptor(key, iv))
// {
// string result;
// using (var msDecrypt = new MemoryStream(cipher))
// {
// using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
// {
// using (var srDecrypt = new StreamReader(csDecrypt))
// {
// result = srDecrypt.ReadToEnd();
// }
// }
// }
// return result;
// }
// }
// }
// catch (Exception ex)
// {
// return ex.Message;
// }
//}
public string GenerateKey(int iKeySize)
{
RijndaelManaged aesEncryption = new RijndaelManaged();
aesEncryption.KeySize = iKeySize;
aesEncryption.BlockSize = 128;
aesEncryption.Mode = CipherMode.CBC;
//aesEncryption.Padding = PaddingMode.PKCS7;
aesEncryption.Padding = PaddingMode.ISO10126;
aesEncryption.GenerateIV();
string ivStr = Convert.ToBase64String(aesEncryption.IV);
aesEncryption.GenerateKey();
string keyStr = Convert.ToBase64String(aesEncryption.Key);
string completeKey = ivStr + "," + keyStr;
return(Convert.ToBase64String(ASCIIEncoding.UTF8.GetBytes(completeKey)));
}
/// <summary>
///
/// </summary>
public static AesKey GetNewAesKey(
int keySize = 256,
int blockSize = 128,
CipherMode cipherMode = CipherMode.CBC,
PaddingMode paddingMode = PaddingMode.PKCS7)
{
using (var key = new RijndaelManaged())
{
key.Mode = cipherMode;
key.Padding = paddingMode;
key.KeySize = keySize;
key.BlockSize = blockSize;
key.GenerateKey();
key.GenerateIV();
return(new AesKey(key));
}
}
/// <summary>
/// Encrypts the given array of bytes, using the configured key. Returns an <see cref="EncryptedData"/> containing the encrypted
/// bytes and the generated salt.
/// </summary>
public EncryptedData Encrypt(byte[] bytes)
{
using (var rijndael = new RijndaelManaged())
{
rijndael.GenerateIV();
rijndael.Key = _key;
using (var encryptor = rijndael.CreateEncryptor())
using (var destination = new MemoryStream())
using (var cryptoStream = new CryptoStream(destination, encryptor, CryptoStreamMode.Write))
{
cryptoStream.Write(bytes, 0, bytes.Length);
cryptoStream.FlushFinalBlock();
return(new EncryptedData(destination.ToArray(), rijndael.IV));
}
}
}
static void Main(string[] args)
{
using (RijndaelManaged myRijndael = new RijndaelManaged())
{
myRijndael.GenerateKey();
myRijndael.GenerateIV();
// Encrypt the string to an array of bytes.
var key = Convert.ToBase64String(myRijndael.Key);
var Iv = Convert.ToBase64String(myRijndael.IV);
Console.WriteLine(" Key and IV Generator");
Console.WriteLine();
Console.WriteLine(" KEY" + " - " + Convert.ToBase64String(myRijndael.Key));
Console.WriteLine(" IV" + " - " + Convert.ToBase64String(myRijndael.IV));
Console.WriteLine();
Console.WriteLine("-----------Press enter key to close-------------");
}
Console.ReadLine();
}
private void btnAesKeyIv_Click(object sender, EventArgs e)
{
RijndaelManaged aesEncryption = new RijndaelManaged();
aesEncryption.KeySize = 256;
aesEncryption.BlockSize = 128;
aesEncryption.Mode = CipherMode.CBC;
aesEncryption.Padding = PaddingMode.PKCS7;
aesEncryption.GenerateIV();
string ivStr = Convert.ToBase64String(aesEncryption.IV);
aesEncryption.GenerateKey();
string keyStr = Convert.ToBase64String(aesEncryption.Key);
string completeKey = string.Format("IV: {0}\r\nKey: {1}", ivStr, keyStr);
txtEncodingOutput.Text = completeKey;
}
public string MakeWebCacheRequest(WebCache cache, string request)
{
try
{
RijndaelManaged crypt = new RijndaelManaged();
crypt.BlockSize = 256;
crypt.Padding = PaddingMode.Zeros;
crypt.GenerateIV();
crypt.Key = cache.AccessKey;
byte[] data = ASCIIEncoding.ASCII.GetBytes(request);
byte[] encrypted = crypt.CreateEncryptor().TransformFinalBlock(data, 0, data.Length);
// php decode requests
byte[] ivEnc = Utilities.CombineArrays(crypt.IV, encrypted);
string get = Convert.ToBase64String(ivEnc);
string response = Utilities.WebDownloadString(cache.Address + "?get=" + Uri.EscapeDataString(get));
if (response == null || response == "")
{
throw new Exception("Access key not accepted");
}
// php encode response
byte[] decoded = Convert.FromBase64String(response);
// decode response
crypt.IV = Utilities.ExtractBytes(decoded, 0, 32);
data = Utilities.ExtractBytes(decoded, 32, decoded.Length - 32);
byte[] decrypted = crypt.CreateDecryptor().TransformFinalBlock(data, 0, data.Length);
response = ASCIIEncoding.ASCII.GetString(decrypted);
response = response.Trim('\0');
return(response);
}
catch (Exception ex)
{
return("error: " + ex.Message);
}
}
public override byte[] Encrypt(byte[] source)
{
using (RijndaelManaged myRijndael = new RijndaelManaged())
{
if (Key == null)
{
myRijndael.GenerateKey();
Key = myRijndael.Key;
KeySize = myRijndael.KeySize;
}
else
{
myRijndael.Key = Key;
}
if (IV == null)
{
myRijndael.GenerateIV();
IV = myRijndael.IV;
}
else
{
myRijndael.IV = IV;
}
// Encrypt the string to an array of bytes.
// Create a decrytor to perform the stream transform.
ICryptoTransform encryptor = myRijndael.CreateEncryptor(myRijndael.Key, myRijndael.IV);
byte[] encrypted;
// Create the streams used for encryption.
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
csEncrypt.Write(source, 0, source.Length);
csEncrypt.FlushFinalBlock();
encrypted = msEncrypt.ToArray();
}
}
return(encrypted);
}
}
public static byte[] Encrypt <T>(T data, bool lz4 = false, bool index = false)
{
if (data == null)
{
return(null);
}
var array = ConvertByte(data);
if (lz4)
{
var array2 = LZ4Codec.EncodeHC(array, 0, array.Length);
if (array2.Length > 0)
{
var value = array.Length;
array = new byte[array2.Length + 4];
Buffer.BlockCopy(BitConverter.GetBytes(value), 0, array, 0, 4);
Buffer.BlockCopy(array2, 0, array, 4, array2.Length);
}
else
{
MessageBox.Show(@"圧縮失敗！: " + data);
}
}
using (var rhinelandManaged = new RijndaelManaged())
{
rhinelandManaged.BlockSize = 128;
rhinelandManaged.KeySize = 128;
rhinelandManaged.Key = index ? PrivateKey : IndexKey;
rhinelandManaged.Mode = CipherMode.CBC;
rhinelandManaged.Padding = PaddingMode.PKCS7;
rhinelandManaged.GenerateIV();
var iV = rhinelandManaged.IV;
using (var cryptoTransform = rhinelandManaged.CreateEncryptor())
{
var array2 = cryptoTransform.TransformFinalBlock(array, 0, array.Length);
var array3 = new byte[iV.Length + array2.Length];
Buffer.BlockCopy(iV, 0, array3, 0, 16);
Buffer.BlockCopy(array2, 0, array3, 16, array2.Length);
return(array3);
}
}
}
/// <summary>
/// 获得初始向量IV
/// </summary>
/// <returns>初试向量IV</returns>
private byte[] GetLegalIV(string strVI)
{
SymmetricAlgorithm mobjCryptoService = new RijndaelManaged();
string sTemp = strVI;
mobjCryptoService.GenerateIV();
byte[] bytTemp = mobjCryptoService.IV;
int IVLength = bytTemp.Length;
if (sTemp.Length > IVLength)
{
sTemp = sTemp.Substring(0, IVLength);
}
else if (sTemp.Length < IVLength)
{
sTemp = sTemp.PadRight(IVLength, ' ');
}
return(ASCIIEncoding.ASCII.GetBytes(sTemp));
}
public static byte[] EncryptBytes(byte[] data, byte[] key)
{
RijndaelManaged crypt = new RijndaelManaged();
crypt.Key = key;
crypt.GenerateIV();
crypt.Padding = PaddingMode.PKCS7;
ICryptoTransform encryptor = crypt.CreateEncryptor();
byte[] transformed = encryptor.TransformFinalBlock(data, 0, data.Length);
byte[] final = new byte[crypt.IV.Length + transformed.Length];
crypt.IV.CopyTo(final, 0);
transformed.CopyTo(final, crypt.IV.Length);
return(final);
}
public static string AesEncrypt(string key, string iv, string plainText)
{
// with the specified key and IV.
using (RijndaelManaged rijAlg = new RijndaelManaged())
{
rijAlg.GenerateIV();
rijAlg.GenerateKey();
ICryptoTransform encryptor = rijAlg.CreateEncryptor(rijAlg.Key, rijAlg.IV);
using MemoryStream msEncrypt = new MemoryStream();
using CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write);
using StreamWriter swEncrypt = new StreamWriter(csEncrypt);
swEncrypt.Write(plainText);
return(Convert.ToBase64String(msEncrypt.ToArray()));
}
}
/// <summary>
/// Encrypts a string using AES 256-bit encryption
/// </summary>
public static string Encrypt(string plainText)
{
if (string.IsNullOrEmpty(plainText))
{
return("");
}
var plainTextBytes = Encoding.UTF8.GetBytes(plainText);
var keyBytes = GetEncryptionKey();
var aes = new RijndaelManaged();
aes.KeySize = KeySize;
aes.Mode = CipherMode.CBC;
aes.GenerateIV(); // We use a generated IV
var ivBytes = aes.IV;
byte[] cipherTextBytes = null;
using (var encryptor = aes.CreateEncryptor(keyBytes, ivBytes)) {
using (var ms = new MemoryStream()) {
using (var cs = new CryptoStream(ms, encryptor, CryptoStreamMode.Write)) {
// Prepend the IV to the encrypted bytes, so that we can
// retrieve it later when decrypting. (The IV is used to
// randomize the encryption process, so that the same password
// encrypted twice generates a different cipher text each time).
// As it is only used for randomisation on encryption, it does
// not matter that it can be extracted easily from the cipher
// text; without the encryption key, the IV is useless.
ms.Write(ivBytes, 0, aes.IV.Length);
cs.Write(plainTextBytes, 0, plainTextBytes.Length);
cs.FlushFinalBlock();
cipherTextBytes = ms.ToArray();
ms.Close();
cs.Close();
}
}
}
aes.Clear();
return(Convert.ToBase64String(cipherTextBytes));
}
public static byte[] Encrypt(byte[] input, byte[] key)
{
if (key == null || key.Length == 0)
{
throw new Exception("Key can not be empty.");
}
if (input == null || input.Length == 0)
{
throw new ArgumentException("Input can not be empty.");
}
using (var md5 = new MD5CryptoServiceProvider())
{
key = md5.ComputeHash(key);
}
byte[] data = input, encdata = new byte[0];
try
{
using (var ms = new MemoryStream())
{
using (var rd = new RijndaelManaged {
Key = key
})
{
rd.GenerateIV();
using (var cs = new CryptoStream(ms, rd.CreateEncryptor(), CryptoStreamMode.Write))
{
ms.Write(rd.IV, 0, rd.IV.Length); // write first 16 bytes IV, followed by encrypted message
cs.Write(data, 0, data.Length);
}
}
encdata = ms.ToArray();
}
}
catch
{
}
return(encdata);
}
public String Encrypt(String StringToEncrypt, String Key32)
{
if (Key32.Length != 32)
{
return(String.Empty);
}
if (StringToEncrypt == String.Empty)
{
return(String.Empty);
}
RijndaelManaged myRijndael = new RijndaelManaged();
myRijndael.Key = str_to_bytes(Key32);
myRijndael.GenerateIV();
String encrypted = Convert.ToBase64String(encryptStringToBytes_AES(StringToEncrypt, myRijndael.Key, myRijndael.IV), Base64FormattingOptions.None);
String iv = Convert.ToBase64String(myRijndael.IV, Base64FormattingOptions.None);
return(iv + "|" + encrypted);
}
protected override void SerializeMessage(Stream output, object message)
{
using (var rijndael = new RijndaelManaged())
{
rijndael.Key = this.encryptionKey;
rijndael.Mode = CipherMode.CBC;
rijndael.GenerateIV();
using (var encryptor = rijndael.CreateEncryptor())
using (var outputWrapper = new UndisposableStream(output))
using (var encryptionStream = new CryptoStream(outputWrapper, encryptor, CryptoStreamMode.Write))
{
outputWrapper.Write(rijndael.IV, 0, rijndael.IV.Length);
this.inner.Serialize(encryptionStream, message);
encryptionStream.Flush();
encryptionStream.FlushFinalBlock();
}
}
}
public virtual void Serialize <T>(Stream output, T graph)
{
using (var rijndael = new RijndaelManaged())
{
rijndael.Key = this.encryptionKey;
rijndael.Mode = CipherMode.CBC;
rijndael.GenerateIV();
using (var encryptor = rijndael.CreateEncryptor())
using (var wrappedOutput = new IndisposableStream(output))
using (var encryptionStream = new CryptoStream(wrappedOutput, encryptor, CryptoStreamMode.Write))
{
wrappedOutput.Write(rijndael.IV, 0, rijndael.IV.Length);
this.inner.Serialize(encryptionStream, graph);
encryptionStream.Flush();
encryptionStream.FlushFinalBlock();
}
}
}
public string Encrypt(string strToEncrypt, SecureString strSecret)
{
if (strToEncrypt == "" || strSecret.Length == 0)
{
return(strToEncrypt);
}
try
{
var rd = new RijndaelManaged();
var md5 = new MD5CryptoServiceProvider();
var key = md5.ComputeHash(Encoding.UTF8.GetBytes(strSecret.ConvertToUnsecureString()));
md5.Clear();
rd.Key = key;
rd.GenerateIV();
var iv = rd.IV;
var ms = new MemoryStream();
ms.Write(iv, 0, iv.Length);
var cs = new CryptoStream(ms, rd.CreateEncryptor(), CryptoStreamMode.Write);
var data = Encoding.UTF8.GetBytes(strToEncrypt);
cs.Write(data, 0, data.Length);
cs.FlushFinalBlock();
var encdata = ms.ToArray();
cs.Close();
rd.Clear();
return(Convert.ToBase64String(encdata));
}
catch (Exception ex)
{
Runtime.MessageCollector.AddMessage(MessageClass.ErrorMsg,
string.Format(Language.strErrorEncryptionFailed, ex.Message));
}
return(strToEncrypt);
}
/// <summary>
/// Create a new AES helper given a password
/// </summary>
/// <param name="password"></param>
/// <returns></returns>
public static AesHelper CreateFromPassword(string password)
{
var phasher = new Rfc2898DeriveBytes(password, 8);
var psalt = phasher.Salt;
var datakeykey = phasher.GetBytes(16); // 128 bits
var phashsalt = new byte[8];
using (RNGCryptoServiceProvider rngCsp = new RNGCryptoServiceProvider())
{
rngCsp.GetBytes(phashsalt);
}
var phashhasher = new Rfc2898DeriveBytes(datakeykey, phashsalt, 8192);
var phashhash = phashhasher.GetBytes(IVSize);
RijndaelManaged dataKeyAesProvider = CreateDataKeyAesProvider(datakeykey);
dataKeyAesProvider.GenerateIV();
return(new AesHelper(datakeykey, psalt, phashhash, phashsalt, dataKeyAesProvider, dataKeyAesProvider.IV));
}
internal static string Encrypt(string data)
{
if (string.IsNullOrEmpty(data) || string.IsNullOrWhiteSpace(data))
{
return(string.Empty);
}
try {
using (RijndaelManaged myRijndael = new RijndaelManaged()) {
myRijndael.GenerateKey();
myRijndael.GenerateIV();
return(Convert.ToBase64String(EncryptStringToBytes(data, myRijndael.Key, myRijndael.IV)));
}
}
catch (Exception e) {
Logger.Exception(e);
return(string.Empty);
}
}
/// <summary>
/// Sets the encrypted CharacterName to the given SecureString, if possible
/// </summary>
/// <param name="CharacterName"></param>
void SetEncryptedCharacterName(System.Security.SecureString CharacterName)
{
if (!App.Settings.UseMasterKey || CharacterName == null)
{
ClearEncryptedCharacterName();
return;
}
if (!App.Settings.RequestMasterPassword())
{
System.Windows.MessageBox.Show("Your configured Master Password is required in order to save EVE Account Character Names and passwords. It can be reset or disabled by un-checking 'Save passwords (securely)', and then all currently saved EVE Account Character Names will be lost.");
return;
}
using (RijndaelManaged rjm = new RijndaelManaged())
{
if (string.IsNullOrEmpty(EncryptedCharacterNameIV))
{
rjm.GenerateIV();
EncryptedCharacterNameIV = Convert.ToBase64String(rjm.IV);
}
else
{
rjm.IV = Convert.FromBase64String(EncryptedCharacterNameIV);
}
using (SecureBytesWrapper sbwKey = new SecureBytesWrapper(App.Settings.PasswordMasterKey, true))
{
rjm.Key = sbwKey.Bytes;
using (ICryptoTransform encryptor = rjm.CreateEncryptor())
{
using (SecureStringWrapper ssw2 = new SecureStringWrapper(CharacterName, Encoding.Unicode))
{
byte[] inblock = ssw2.ToByteArray();
byte[] encrypted = encryptor.TransformFinalBlock(inblock, 0, inblock.Length);
EncryptedCharacterName = Convert.ToBase64String(encrypted);
}
}
}
}
}