public static byte[] Decrypt(this byte[] data,
DeriveBytes key,
SymmetricAlgorithm algorithmUsing = null,
string initialVector = "OFRna73m*aze01xY",
int keySize = 256)
{
if (data.IsNull())
return null;
algorithmUsing = algorithmUsing.NullCheck(() => new RijndaelManaged());
Guard.NotEmpty(initialVector, "initialVector");
using (DeriveBytes derivedPassword = key)
{
using (SymmetricAlgorithm symmetricKey = algorithmUsing)
{
symmetricKey.Mode = CipherMode.CBC;
byte[] plainTextBytes;
using (
ICryptoTransform decryptor = symmetricKey.CreateDecryptor(derivedPassword.GetBytes(keySize/8),
initialVector.ToByteArray()))
{
using (var memStream = new MemoryStream(data))
{
using (var cryptoStream = new CryptoStream(memStream, decryptor, CryptoStreamMode.Read))
{
plainTextBytes = cryptoStream.ReadAllBinary();
}
}
}
symmetricKey.Clear();
return plainTextBytes;
}
}
}
private static RijndaelManaged CreateKey(DeriveBytes deriveBytes)
{
var result = new RijndaelManaged {Mode = CipherMode.CBC, Padding = PaddingMode.PKCS7};
result.Key = deriveBytes.GetBytes(result.KeySize / 8);
result.IV = deriveBytes.GetBytes(result.BlockSize / 8);
return result;
}
/// <summary>
/// Decrypts a string
/// </summary>
/// <param name="Data">Text to be decrypted (Base 64 string)</param>
/// <param name="Key">Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc. Really anything that implements DeriveBytes)</param>
/// <param name="EncodingUsing">Encoding that the output string should use (defaults to UTF8)</param>
/// <param name="AlgorithmUsing">Algorithm to use for decryption (defaults to AES)</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)</param>
/// <returns>A decrypted string</returns>
public static string Decrypt(this string Data,
DeriveBytes Key,
Encoding EncodingUsing = null,
SymmetricAlgorithm AlgorithmUsing = null,
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (Data.IsNullOrEmpty())
return "";
return Convert.FromBase64String(Data)
.Decrypt(Key, AlgorithmUsing, InitialVector, KeySize)
.ToEncodedString(EncodingUsing);
}
/// <summary>
/// Decrypts a string
/// </summary>
/// <param name="Data">Text to be decrypted (Base 64 string)</param>
/// <param name="Key">
/// Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc.
/// Really anything that implements DeriveBytes)
/// </param>
/// <param name="EncodingUsing">
/// Encoding that the output string should use (defaults to UTF8)
/// </param>
/// <param name="AlgorithmUsing">Algorithm to use for decryption (defaults to AES)</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <returns>A decrypted string</returns>
public static string Decrypt(this string Data,
DeriveBytes Key,
Encoding EncodingUsing = null,
string AlgorithmUsing = "AES",
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (string.IsNullOrEmpty(Data))
return "";
return Data.FromBase64()
.Decrypt(Key, AlgorithmUsing, InitialVector, KeySize)
.ToString(EncodingUsing);
}
/// <summary>
/// Decrypts a string
/// </summary>
/// <param name="data">Text to be decrypted (Base 64 string)</param>
/// <param name="key">Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc. Really anything that implements DeriveBytes)</param>
/// <param name="encodingUsing">Encoding that the output string should use (defaults to UTF8)</param>
/// <param name="algorithmUsing">Algorithm to use for decryption (defaults to AES)</param>
/// <param name="initialVector">Needs to be 16 ASCII characters long</param>
/// <param name="keySize">Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)</param>
/// <returns>A decrypted string</returns>
public static string Decrypt(this string data,
DeriveBytes key,
Encoding encodingUsing = null,
SymmetricAlgorithm algorithmUsing = null,
string initialVector = "OFRna73m*aze01xY",
int keySize = 256)
{
if (data.IsNullOrEmpty())
return "";
return Convert.FromBase64String(data)
.Decrypt(key, algorithmUsing, initialVector, keySize)
.ToEncodedString(encodingUsing);
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="Data">Data to encrypt</param>
/// <param name="Key">Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc. Really anything that implements DeriveBytes)</param>
/// <param name="AlgorithmUsing">Algorithm to use for encryption (defaults to AES)</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)</param>
/// <param name="EncodingUsing">Encoding that the original string is using (defaults to UTF8)</param>
/// <returns>An encrypted byte array</returns>
public static string Encrypt(this string Data,
DeriveBytes Key,
Encoding EncodingUsing = null,
SymmetricAlgorithm AlgorithmUsing = null,
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (Data.IsNullOrEmpty())
return "";
return Data.ToByteArray(EncodingUsing)
.Encrypt(Key, AlgorithmUsing, InitialVector, KeySize)
.ToBase64String();
}
public static byte[] Encrypt(this byte[] Data,
DeriveBytes Key,
SymmetricAlgorithm AlgorithmUsing = null,
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (Data.IsNull())
return null;
AlgorithmUsing = AlgorithmUsing.NullCheck(()=>new RijndaelManaged());
InitialVector.ThrowIfNullOrEmpty("InitialVector");
using (DeriveBytes DerivedPassword = Key)
{
using (SymmetricAlgorithm SymmetricKey = AlgorithmUsing)
{
SymmetricKey.Mode = CipherMode.CBC;
byte[] CipherTextBytes = null;
using (ICryptoTransform Encryptor = SymmetricKey.CreateEncryptor(DerivedPassword.GetBytes(KeySize / 8), InitialVector.ToByteArray()))
{
using (MemoryStream MemStream = new MemoryStream())
{
using (CryptoStream CryptoStream = new CryptoStream(MemStream, Encryptor, CryptoStreamMode.Write))
{
CryptoStream.Write(Data, 0, Data.Length);
CryptoStream.FlushFinalBlock();
CipherTextBytes = MemStream.ToArray();
}
}
}
SymmetricKey.Clear();
return CipherTextBytes;
}
}
}
public static byte[] Decrypt(this byte[] Data,
DeriveBytes Key,
SymmetricAlgorithm AlgorithmUsing = null,
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (Data.IsNull())
return null;
AlgorithmUsing = AlgorithmUsing.NullCheck(()=>new RijndaelManaged());
InitialVector.ThrowIfNullOrEmpty("InitialVector");
using (DeriveBytes DerivedPassword = Key)
{
using (SymmetricAlgorithm SymmetricKey = AlgorithmUsing)
{
SymmetricKey.Mode = CipherMode.CBC;
byte[] PlainTextBytes = null;
using (ICryptoTransform Decryptor = SymmetricKey.CreateDecryptor(DerivedPassword.GetBytes(KeySize / 8), InitialVector.ToByteArray()))
{
using (MemoryStream MemStream = new MemoryStream(Data))
{
using (CryptoStream CryptoStream = new CryptoStream(MemStream, Decryptor, CryptoStreamMode.Read))
{
PlainTextBytes = CryptoStream.ReadAllBinary();
}
}
}
SymmetricKey.Clear();
return PlainTextBytes;
}
}
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="Data">Data to encrypt</param>
/// <param name="Key">
/// Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc.
/// Really anything that implements DeriveBytes)
/// </param>
/// <param name="AlgorithmUsing">Algorithm to use for encryption (defaults to AES)</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <returns>An encrypted byte array</returns>
public static byte[] Encrypt(this byte[] Data,
DeriveBytes Key,
string AlgorithmUsing = "AES",
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
var TempManager = IoC.Manager.Bootstrapper.Resolve<Manager>();
if (TempManager == null)
return new byte[0];
return TempManager.Encrypt(Data, Key, AlgorithmUsing, InitialVector, KeySize);
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="Data">Data to encrypt</param>
/// <param name="Key">
/// Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc.
/// Really anything that implements DeriveBytes)
/// </param>
/// <param name="AlgorithmUsing">Algorithm to use for encryption (defaults to AES)</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <param name="EncodingUsing">
/// Encoding that the original string is using (defaults to UTF8)
/// </param>
/// <returns>An encrypted byte array</returns>
public static string Encrypt(this string Data,
DeriveBytes Key,
Encoding EncodingUsing = null,
string AlgorithmUsing = "AES",
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
if (string.IsNullOrEmpty(Data))
return "";
return Data.ToByteArray(EncodingUsing)
.Encrypt(Key, AlgorithmUsing, InitialVector, KeySize)
.ToString(Base64FormattingOptions.None);
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="Data">Data to be encrypted</param>
/// <param name="Key">Password to encrypt with</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <param name="Algorithm">Algorithm</param>
/// <returns>An encrypted byte array</returns>
public byte[] Encrypt(byte[] Data, DeriveBytes Key,
string Algorithm = "AES",
string InitialVector = "OFRna73m*aze01xY",
int KeySize = 256)
{
Contract.Requires<NullReferenceException>(SymmetricAlgorithms != null, "SymmetricAlgorithms");
var Found = SymmetricAlgorithms.FirstOrDefault(x => x.CanHandle(Algorithm));
if (Found == null)
throw new ArgumentException(Algorithm + " not found");
return Found.Encrypt(Data, Key, Algorithm, InitialVector, KeySize);
}
public static byte[] Encrypt(this byte[] data,
DeriveBytes key,
SymmetricAlgorithm algorithmUsing = null,
string initialVector = "OFRna73m*aze01xY",
int keySize = 256)
{
if (data.IsNull())
return null;
algorithmUsing = algorithmUsing.NullCheck(() => new RijndaelManaged());
Guard.NotEmpty(initialVector, "initialVector");
using (DeriveBytes derivedPassword = key)
{
using (SymmetricAlgorithm symmetricKey = algorithmUsing)
{
symmetricKey.Mode = CipherMode.CBC;
byte[] cipherTextBytes;
using (
ICryptoTransform encryptor = symmetricKey.CreateEncryptor(derivedPassword.GetBytes(keySize/8),
initialVector.ToByteArray()))
{
using (var memStream = new MemoryStream())
{
using (var cryptoStream = new CryptoStream(memStream, encryptor, CryptoStreamMode.Write))
{
cryptoStream.Write(data, 0, data.Length);
cryptoStream.FlushFinalBlock();
cipherTextBytes = memStream.ToArray();
}
}
}
symmetricKey.Clear();
return cipherTextBytes;
}
}
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="data">Data to encrypt</param>
/// <param name="key">Key to use to encrypt the data (can use PasswordDeriveBytes, Rfc2898DeriveBytes, etc. Really anything that implements DeriveBytes)</param>
/// <param name="algorithmUsing">Algorithm to use for encryption (defaults to AES)</param>
/// <param name="initialVector">Needs to be 16 ASCII characters long</param>
/// <param name="keySize">Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)</param>
/// <param name="encodingUsing">Encoding that the original string is using (defaults to UTF8)</param>
/// <returns>An encrypted byte array</returns>
public static string Encrypt(this string data,
DeriveBytes key,
Encoding encodingUsing = null,
SymmetricAlgorithm algorithmUsing = null,
string initialVector = "OFRna73m*aze01xY",
int keySize = 256)
{
if (data.IsNullOrEmpty())
return "";
return data.ToByteArray(encodingUsing)
.Encrypt(key, algorithmUsing, initialVector, keySize)
.ToBase64String();
}
/// <summary>
/// Decrypts a byte array
/// </summary>
/// <param name="Data">Data to be decrypted</param>
/// <param name="Key">Password to decrypt with</param>
/// <param name="Algorithm">Algorithm to use for decryption</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <returns>A decrypted byte array</returns>
public byte[] Decrypt(byte[] Data, DeriveBytes Key, string Algorithm = "AES", string InitialVector = "OFRna73m*aze01xY", int KeySize = 256)
{
if (string.IsNullOrEmpty(InitialVector))
throw new ArgumentNullException(nameof(InitialVector));
if (Data == null)
return null;
using (SymmetricAlgorithm SymmetricKey = GetProvider(Algorithm))
{
byte[] PlainTextBytes = new byte[0];
if (SymmetricKey != null)
{
SymmetricKey.Mode = CipherMode.CBC;
using (ICryptoTransform Decryptor = SymmetricKey.CreateDecryptor(Key.GetBytes(KeySize / 8), InitialVector.ToByteArray()))
{
using (MemoryStream MemStream = new MemoryStream(Data))
{
using (CryptoStream CryptoStream = new CryptoStream(MemStream, Decryptor, CryptoStreamMode.Read))
{
PlainTextBytes = CryptoStream.ReadAllBinary();
}
}
}
SymmetricKey.Clear();
}
return PlainTextBytes;
}
}
/// <summary>
/// Encrypts a byte array
/// </summary>
/// <param name="Data">Data to be encrypted</param>
/// <param name="Key">Password to encrypt with</param>
/// <param name="InitialVector">Needs to be 16 ASCII characters long</param>
/// <param name="KeySize">
/// Can be 64 (DES only), 128 (AES), 192 (AES and Triple DES), or 256 (AES)
/// </param>
/// <param name="Algorithm">Algorithm to use</param>
/// <returns>The encrypted byte array</returns>
public byte[] Encrypt(byte[] Data, DeriveBytes Key, string Algorithm = "AES", string InitialVector = "OFRna73m*aze01xY", int KeySize = 256)
{
if (string.IsNullOrEmpty(InitialVector))
throw new ArgumentNullException(nameof(InitialVector));
if (Data == null)
return null;
using (SymmetricAlgorithm SymmetricKey = GetProvider(Algorithm))
{
byte[] CipherTextBytes = new byte[0];
if (SymmetricKey != null)
{
SymmetricKey.Mode = CipherMode.CBC;
using (ICryptoTransform Encryptor = SymmetricKey.CreateEncryptor(Key.GetBytes(KeySize / 8), InitialVector.ToByteArray()))
{
using (MemoryStream MemStream = new MemoryStream())
{
using (CryptoStream CryptoStream = new CryptoStream(MemStream, Encryptor, CryptoStreamMode.Write))
{
CryptoStream.Write(Data, 0, Data.Length);
CryptoStream.FlushFinalBlock();
CipherTextBytes = MemStream.ToArray();
}
}
}
SymmetricKey.Clear();
}
return CipherTextBytes;
}
}
private static RijndaelManaged GetAesAlgorithm(DeriveBytes bytes)
{
RijndaelManaged aes = new RijndaelManaged();
aes.Mode = CipherMode.CBC;
aes.Key = bytes.GetBytes(aes.KeySize / 8);
aes.IV = bytes.GetBytes(aes.BlockSize / 8);
return aes;
}
