public static uint ComputeFileChecksum(byte[] fileBytes)
{
// caesar uses a 0x8000 block size
// const int blockSize = 0x8000;
const int blockSize = int.MaxValue;
// skip the appended checksum
fileBytes = fileBytes.Take(fileBytes.Length - 4).ToArray();
int fileCursor = 0;
uint currentChecksum = 0xFFFFFFFF;
while (fileCursor < fileBytes.Length)
{
byte[] blockToRead = fileBytes.Skip(fileCursor).Take(blockSize).ToArray();
fileCursor += blockSize;
currentChecksum = CaesarReader.CrcAccumulate(blockToRead, currentChecksum);
}
return(currentChecksum);
}
public static uint ComputeFileChecksumLazy(byte[] fileBytes)
{
return(CaesarReader.CrcAccumulate(fileBytes, 0xFFFFFFFF, fileBytes.Length - 4));
}
