public static string Encrypt(string data, byte[] key, byte[] salt, AesCryptographyLevel bits)
{
var clearBytes = Encoding.Unicode.GetBytes(data);
var pdb = new Rfc2898DeriveBytes(key, salt, 5);
switch (bits)
{
case AesCryptographyLevel.Aes128:
return Convert.ToBase64String(Encrypt(clearBytes, pdb.GetBytes(16), pdb.GetBytes(16)));
case AesCryptographyLevel.Aes192:
return Convert.ToBase64String(Encrypt(clearBytes, pdb.GetBytes(24), pdb.GetBytes(16)));
default:
return Convert.ToBase64String(Encrypt(clearBytes, pdb.GetBytes(32), pdb.GetBytes(16)));
}
}
public static string Decrypt(string data, byte[] key, byte[] salt, AesCryptographyLevel bits)
{
var cipherBytes = Convert.FromBase64String(data);
var pdb = new Rfc2898DeriveBytes(key, salt, 5);
switch (bits)
{
case AesCryptographyLevel.Aes128:
return(Encoding.Unicode.GetString(Decrypt(cipherBytes, pdb.GetBytes(16), pdb.GetBytes(16))));
case AesCryptographyLevel.Aes192:
return(Encoding.Unicode.GetString(Decrypt(cipherBytes, pdb.GetBytes(24), pdb.GetBytes(16))));
default:
return(Encoding.Unicode.GetString(Decrypt(cipherBytes, pdb.GetBytes(32), pdb.GetBytes(16))));
}
}
