/// <summary>
/// Method to encrypt with the RFC2898 technique, with a supplied RFC2898 info
/// </summary>
/// <param name="input">the string to encrypt</param>
/// <param name="cryptInfo">the RFC2898 crypt info</param>
/// <returns>a byte array of the encrypted data</returns>
public static byte[] EncryptRfc2898(string input, RFC2898CryptInfo cryptInfo)
{
LogManager.Instance.Log().Debug("Calling Encrypt RFC2989");
byte[] toEncode = new ASCIIEncoding().GetBytes(input);
byte[] key = new Rfc2898DeriveBytes(cryptInfo.password, new ASCIIEncoding().GetBytes(cryptInfo.salt)).GetBytes(256 / 8);
RijndaelManaged symmetricKey = new RijndaelManaged()
{
Mode = CipherMode.CBC,
Padding = PaddingMode.Zeros
};
var encryptor = symmetricKey.CreateEncryptor(key, new ASCIIEncoding().GetBytes(cryptInfo.VIKey));
byte[] encodedBytes;
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream, encryptor, CryptoStreamMode.Write);
cStream.Write(toEncode, 0, toEncode.Length);
cStream.FlushFinalBlock();
encodedBytes = mStream.ToArray();
cStream.Close();
mStream.Close();
return(encodedBytes);
}
/// <summary>
/// Method to encrypt with the RFC2898 technique, with the static RFC2898 info
/// </summary>
/// <param name="input">the string to encrypt</param>
/// <returns>a byte array of the encrypted data</returns>
public static byte[] EncryptRfc2898(string input)
{
LogManager.Instance.Log().Debug("Calling Encrypt RFC2989 with default crypt info");
if (RFC2898_cryptInfo == null)
{
LogManager.Instance.Log().Debug("Creating a new static instance of RFC2898 Crypt info");
RFC2898_cryptInfo = new RFC2898CryptInfo();
}
return(EncryptRfc2898(input, RFC2898_cryptInfo));
}
/// <summary>
/// Method to decrypt with the RFC2898 technique, with a supplied RFC2898 info
/// </summary>
/// <param name="input">the byte array to decrypt</param>
/// <param name="cryptInfo">the RFC2898 crypt info</param>
/// <returns>decrypted string data</returns>
public static string DecryptRfc2898(byte[] input, RFC2898CryptInfo cryptInfo)
{
LogManager.Instance.Log().Debug("Calling Decrypt RFC2989");
byte[] key = new Rfc2898DeriveBytes(cryptInfo.password, new ASCIIEncoding().GetBytes(cryptInfo.salt)).GetBytes(256 / 8);
RijndaelManaged symmetricKey = new RijndaelManaged()
{
Mode = CipherMode.CBC,
Padding = PaddingMode.None
};
var decryptor = symmetricKey.CreateDecryptor(key, new ASCIIEncoding().GetBytes(cryptInfo.VIKey));
MemoryStream mStream = new MemoryStream(input);
CryptoStream cStream = new CryptoStream(mStream, decryptor, CryptoStreamMode.Read);
byte[] fromEncode = new byte[input.Length];
cStream.Read(fromEncode, 0, fromEncode.Length);
mStream.Close();
cStream.Close();
return(new ASCIIEncoding().GetString(fromEncode).TrimEnd('\0'));
}