Method Nettle.crc32c() Method crc32c int(0..) crc32c(string(8bit) data, void|int(0..) seed) Description Implements the Castagnoli CRC, CRC32C. Hardware optimized on Intel CPUs with SSE 4.2. Parameter seed Can be fed with the result of the previous invocation to chain on new data. Defaults to zero on virgin runs.