public int ReadAndDecrypt(byte[] buffer, int offset, int count)
{
int queueSize = _data.Count;
int sizeToRead = count - queueSize;
if (sizeToRead > 0)
{
int alignedSize = sizeToRead + ((~sizeToRead + 1) & 0xf);
Span <byte> cipherText = stackalloc byte[RarRijndael.CRYPTO_BLOCK_SIZE];
for (int i = 0; i < alignedSize / 16; i++)
{
//long ax = System.currentTimeMillis();
_actualStream.Read(cipherText);
var readBytes = _rijndael.ProcessBlock(cipherText);
foreach (var readByte in readBytes)
{
_data.Enqueue(readByte);
}
}
for (int i = 0; i < count; i++)
{
buffer[offset + i] = _data.Dequeue();
}
}
return(count);
}
private byte[] ReadAndDecryptBytes(int count)
{
int queueSize = data.Count;
int sizeToRead = count - queueSize;
if (sizeToRead > 0)
{
int alignedSize = sizeToRead + ((~sizeToRead + 1) & 0xf);
for (int i = 0; i < alignedSize / 16; i++)
{
//long ax = System.currentTimeMillis();
byte[] cipherText = ReadBytesNoCrc(16);
var readBytes = rijndael.ProcessBlock(cipherText);
foreach (var readByte in readBytes)
{
data.Enqueue(readByte);
}
}
}
var decryptedBytes = new byte[count];
for (int i = 0; i < count; i++)
{
var b = data.Dequeue();
decryptedBytes[i] = b;
UpdateCrc(b);
}
this.readCount += count;
return(decryptedBytes);
}