w3.CRC - a simple to use CRC library

Supported CRC algorithms (atm):

• CRC8 ATM-2
• CRC16 CCITT
• CRC32c (Catagnolli)

CRC8, CRC16 and CRC32

Recommended for data with less than 256B

The CRC calculation is as follows:

byte[] data = BitConverter.GetBytes("Hello, world!");  // Input data - byte array
uint crc = CRC8.ComputeChecksum(data);

Along with the data validation:

using var stream = File.OpenRead("testFile.bin");  // Input data - also a byte array
bool isValid = CRC8.Validate(dataWithCRC);

CRC32Stream

The CRC32Stream is different as it uses streams as inputs instead of byte arrays to save memory space when calculating the CRC. The calculation is as follows:

var crcStream = new CRC32Stream(inputStream);
uint crc = crcStream.ComputeChecksum(8192, 0, (int)crcStream.Length);

And for the validation:

var crcStream = new CRC32Stream(inputStream);
bool isValid = crcStream.Validate(8192, 0, (int)crcStream.Length);

Planned CRCs:

• None