Checksum

Standard CRC-32 checksum for ZIP files and Ethernet - detects accidental data corruption

Fast Adler-32 checksum used in zlib compression - optimized for speed over accuracy

Cyclic redundancy check (16-bit)

Cyclic redundancy check (8-bit)

Cyclic redundancy check (64-bit)

RFC 1071 Internet checksum algorithm

Compact Fletcher-4 checksum - position-dependent error detection for small data blocks

Fletcher-8 checksum algorithm - efficient 8-bit error detection with burst error protection

Standard Fletcher-16 checksum - widely used for network protocols and data integrity

Enhanced Fletcher-32 checksum - stronger error detection for larger data sets and files

Luhn algorithm - credit card validation checksum used worldwide for financial data integrity

Verhoeff algorithm - advanced decimal checksum with transposition error detection capabilities

Damm algorithm - quasigroup-based checksum providing single-digit error correction