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CRC32C (Castagnoli) hash calculator

The CRC32 variant with the Castagnoli polynomial; it can be hardware-accelerated with SSE4.2 and ARMv8 instructions (iSCSI, ext4, Btrfs).

CRC32C (Castagnoli) is not a cryptographic hash but an error-detecting checksum. It does not protect against deliberate changes.
Up to 10 MiB; the file never leaves your browser.

Technical details

Output
32 bits (8 hex characters)
Standard
RFC 3720 (iSCSI)
Designed by
Guy Castagnoli, 1993
Security status
Not cryptographic (checksum)
Speed
Very fast

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