Calculate a BSD-style checksum from text. The algorithm rotates a 16-bit sum and adds each byte.
BSD checksum values mainly matter when matching old Unix sum behavior or legacy documentation. For newer file integrity checks, a named CRC or cryptographic hash is usually specified.
The calculator displays the 16-bit result as 4 hexadecimal characters. Some command-line tools display BSD sums in decimal, so convert the base before comparing.
The BSD checksum returns a 16-bit value, usually shown as 4 hexadecimal characters here.
Paste text into the input pane. Batch mode calculates one BSD checksum per line.
No. The BSD checksum uses a rotating 16-bit sum, not a CRC polynomial.
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