A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks
and storage devices to detect accidental changes to digital data. Blocks of data entering
these systems get a short check value attached, based on the remainder of a polynomial
division of their contents.
The most common variant of the CRC32 checksum, sometimes called CRC-32b, is based on the
following generator polynomial: g(x) = x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 +
x7 + x5 + x4 + x2 + x + 1. This code processes one bit at a time.
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