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();
}
}
internal static void Encrypt(CryptoRequest request)
{
CryptoContainer container = request.ValidateEncryption();
ReportAndCancellationToken token = request.Token ?? new ReportAndCancellationToken();
token.CanReportProgress = request.InData.CanSeek;
using (var aes = GetAes())
using (var encryptor = GetEncryptorAndSetAes(aes, request))
{
int bufferSize = aes.BlockSize;
if (token.CanReportProgress ?? false)
{
token.NumberOfIterations = (int)Math.Ceiling(request.InData.Length / (double)bufferSize);
}
CryptoStream cs = new CryptoStream(request.OutData, encryptor, CryptoStreamMode.Write);
byte[] buffer = new byte[bufferSize];
int read = 0;
int iterationCount = 0;
while ((read = request.InData.Read(buffer, 0, bufferSize)) > 0)
{
cs.Write(buffer, 0, read);
cs.Flush();
if (token.IsCanceled)
{
break;
}
iterationCount++;
token.ReportProgressInternal(iterationCount);
}
if (token.IsCanceled)
{
return;
}
cs.FlushFinalBlock();
}
if (!request.SkipValidations)
{
container.WriteChecksAndEmbeddedData();
}
}