File:Checksum.svg · Wikimedia Commons · See Wikimedia Commons
checksum
Sign in to saveAlso known as check sum
thumb|330px|right|Effect of a typical checksum function (the Unix cksum utility)
~7 min read
Encyclopedic overview
10 sectionsContents
- Algorithms
- Parity byte or parity word
- Sum complement
- Position-dependent
- {{anchor|fuzzy checksum}}Fuzzy checksum
- General considerations
- See also
- References
- Further reading
- External links
thumb|330px|right|Effect of a typical checksum function (the Unix cksum utility)
A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage. By themselves, checksums are often used to verify data integrity but are not relied upon to verify data authenticity.
Excerpted from Wikipedia’s “checksum” article, available under the CC BY-SA 4.0 licence.