internal static void Encrypt(CryptoRequest request)
{
if (request.Key.Length != 32)
{
throw new ArgumentException("Key must be 32 bytes long.");
}
if (request.IV == null || request.IV.Length != 16)
{
throw new ArgumentException("IV must be 16 bytes in length");
}
CryptoContainer container = null;
if (!request.SkipValidations)
{
container = CryptoContainer.CreateForEncryption(request);
container.WriteEmptyHeaderData();
}
using (var aes = new AesManaged())
{
aes.IV = request.IV;
aes.Key = request.Key;
aes.Padding = PaddingMode.ISO10126;
aes.BlockSize = 128;
if (request.SkipValidations)
{
aes.Padding = PaddingMode.PKCS7;
}
using (var encryptor = aes.CreateEncryptor())
{
CryptoStream cs = new CryptoStream(request.OutData, encryptor, CryptoStreamMode.Write);
int bufferSize = aes.BlockSize;
byte[] buffer = new byte[bufferSize];
int read = 0;
while ((read = request.InData.Read(buffer, 0, bufferSize)) > 0)
{
cs.Write(buffer, 0, read);
cs.Flush();
}
cs.FlushFinalBlock();
}
}
if (!request.SkipValidations)
{
container.WriteChecksAndEmbeddedData();
}
}
public CryptoContainer ValidateEncryption()
{
if (Key.Length != 32)
{
throw new ArgumentException("Key must be 32 bytes long.");
}
if (IV == null || IV.Length != 16)
{
throw new ArgumentException("IV must be 16 bytes in length");
}
CryptoContainer container = null;
if (!SkipValidations)
{
container = CryptoContainer.CreateForEncryption(this);
container.WriteEmptyHeaderData();
}
return(container);
}