/// <summary>
/// Decrypts a string using the <see cref="Aes"/> algorithm.
/// </summary>
/// <param name="s">The string to decrypt.</param>
/// <param name="parameters">The <see cref="AesParameters"/> structure holding the key and initialization vector.</param>
/// <returns>Returns the decrypted <see cref="string"/>.</returns>
public string AesDecrypt(string s, AesParameters parameters)
{
var transform = aes.CreateDecryptor(parameters.AesKey, parameters.AesIV);
var memoryStream = new MemoryStream(Convert.FromBase64String(s));
var cryptoStream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Read);
var reader = new StreamReader(cryptoStream);
var decrypted = reader.ReadToEnd();
reader.Dispose();
cryptoStream.Dispose();
memoryStream.Dispose();
transform.Dispose();
return(decrypted);
}
/// <summary>
/// Encrypts a string using the <see cref="Aes"/> algorithm.
/// </summary>
/// <param name="s">The string to encrypt.</param>
/// <param name="parameters">The <see cref="AesParameters"/> structure holding the key and initialization vector.</param>
/// <returns>Returns the encrypted <see cref="string"/>.</returns>
public string AesEncrypt(string s, AesParameters parameters)
{
var transform = aes.CreateEncryptor(parameters.AesKey, parameters.AesIV);
var memoryStream = new MemoryStream();
using (var cryptoStream = new CryptoStream(memoryStream, transform, CryptoStreamMode.Write)) {
using (var writer = new StreamWriter(cryptoStream)) {
writer.Write(s);
}
}
var encrypted = Convert.ToBase64String(memoryStream.ToArray());
memoryStream.Dispose();
transform.Dispose();
return(encrypted);
}