/// <summary>
/// Encrypts and encodes the specified data.
/// </summary>
/// <param name="plainText">The plain text.</param>
/// <returns></returns>
public string EncryptAndEncode(string plainText)
{
if (string.IsNullOrEmpty(plainText))
{
return(plainText);
}
CryptoSettings settings = CryptoSettings.GetSettings();
ICryptoProvider cryptoProvider = settings.CryptoProvider;
byte[] iv = cryptoProvider.GenerateRandomIv();
byte[] cipherText = cryptoProvider.EncryptData(plainText, Initialise(), iv);
return(EncodeCipherText(settings.Version, iv, cipherText));
}
/// <summary>
/// Decodes and decrypts the specified cipher text.
/// </summary>
/// <param name="encodedCipherText">The encoded cipher text.</param>
/// <returns></returns>
public string DecodeAndDecrypt(string encodedCipherText)
{
if (string.IsNullOrEmpty(encodedCipherText))
{
return(encodedCipherText);
}
int version;
byte[] iv;
byte[] cipherText;
if (!TryDecodeEncodedCipherText(encodedCipherText, out version, out iv, out cipherText))
{
return(null);
}
CryptoSettings settings = CryptoSettings.GetSettings(version);
ICryptoProvider cryptoProvider = settings.CryptoProvider;
return(cryptoProvider.DecryptData(cipherText, Initialise(), iv));
}
