crc32itu

crc32 ITU

ITU I.363.5 algorithm (a.k.a. AAL5 CRC) was popularised by BZIP2 but also used in ATM transmissions.

This is not implemented in golang's hash/crc32 package, but can be found hidden in compress/bzip2 and is the equivalent of PHP's hash('crc32', ...).

the algorithm is the same as that in POSIX 1003.2-1992 in Cksum but that stuffs the size into the CRC at the end for extra measure.