Update protocol to support both CRC32 and CRC32C algorithm.

		SHA1 = 1; // see NIST

		SHA2 = 2; // see NIST

		SHA3 = 3; // see NIST. The length of the tag determined the length of the hash

		CRC32C = 4; // CRC32C

		CRC64 = 5; // CRC64

		CRC32 = 6; // the CRC32 is the standard Ethernet CRC32. See IEEE

		CRC32C = 4;

		CRC64 = 5;

		CRC32 = 6;

		// 7-99 are reserved.

		// 100-inf are private algorithms.

	}