/// <summary>
/// Decrypts a byte array encrypted using <see cref="Encrypt(string,byte[],string,int,int,out SymmetricKey)" />.
/// </summary>
/// <param name="rsaKey">The decrypting RSA key as XML or as a secure key container name.</param>
/// <param name="cipherText">The encrypted data.</param>
/// <returns>The decrypted data.</returns>
/// <exception cref="CryptographicException">Thrown is the encrypted data block is incorrectly formatted.</exception>
public static byte[] Decrypt(string rsaKey, byte[] cipherText)
{
SymmetricKey symmetricKey = null;
try
{
return(Decrypt(rsaKey, cipherText, out symmetricKey));
}
finally
{
if (symmetricKey != null)
{
symmetricKey.Dispose();
}
}
}
/// <summary>
/// Encrypts a byte array using a combination of an asymmetric RSA key and the
/// specified symmetric encryption algorithm and a one-time key generated by
/// the method.
/// </summary>
/// <param name="rsaKey">The encrypting RSA key as XML or as a secure key container name.</param>
/// <param name="plainText">The data to be encrypted.</param>
/// <param name="algorithm">The symmetric encryption algorithm name.</param>
/// <param name="keySize">The one-time symmetric key size to generate in bits.</param>
/// <param name="paddedSize">Specifies the minimum padded size of the encrypted content.</param>
/// <returns>The encrypted result.</returns>
/// <remarks>
/// <para>
/// The current supported cross platform encryption algorithms
/// are: "DES", "RC2", "TripleDES", and "AES" (Rijndael).
/// </para>
/// </remarks>
/// <exception cref="ArgumentException">Thrown if the requested encryption algorithm is unknown.</exception>
public static byte[] Encrypt(string rsaKey, byte[] plainText, string algorithm, int keySize, int paddedSize)
{
SymmetricKey symmetricKey = null;
try
{
return(Encrypt(rsaKey, plainText, algorithm, keySize, paddedSize, out symmetricKey));
}
finally
{
if (symmetricKey != null)
{
symmetricKey.Dispose();
}
}
}