public static UInt32 CheckSumFile(string fileName)
{
CRC32 crc = new CRC32();
int bufferLen = 32*1024;
using (FileStream fs = File.OpenRead(fileName))
{
byte[] buffer = new byte[bufferLen];
while (true)
{
int n = fs.Read(buffer, 0, bufferLen);
if (n == 0) break;
crc.Write(buffer, 0, n);
}
}
return crc.Sum32();
}
public static UInt32 CheckSumBytes(byte[] data)
{
CRC32 crc = new CRC32();
crc.Write(data, 0, data.Length);
return crc.Sum32();
}