public static string Base64Encode(string text, Settings.Settings settings = null)
{
/*
* finalBytes will contain the following:
* +---------+-------+------+
* | Salt | Salt | Data |
* | bytes | bytes | |
* | Length | | |
* | 2 bytes | | |
* +---------+-------+------+
*/
if (string.IsNullOrEmpty(text))
{
return(text);
}
settings ??= new Settings.Settings();
ushort saltSize = ByteHelper.GetByteSize(settings.SaltSize);
byte[] bytes = settings.Encoding.GetBytes(text);
byte[] finalBytes = new byte[Constants.SHORT_SIZE + saltSize // Salt
+ bytes.Length // Data
];
int n = 0;
BitConverter.GetBytes(saltSize).CopyTo(finalBytes, n);
n = Constants.SHORT_SIZE;
if (saltSize > 0)
{
byte[] saltBytes = new byte[saltSize];
using (IRandomNumberGenerator random = CreateRandomNumberGenerator())
random.GetNonZeroBytes(saltBytes);
saltBytes.CopyTo(finalBytes, n);
n += saltBytes.Length;
}
bytes.CopyTo(finalBytes, n);
return(Convert.ToBase64String(finalBytes));
}