CRC is a non-cryptographic checksum function, so it actually doesn't belong on Crypro.SE.
Our help center currently states:
Cryptography Stack Exchange is for asking questions about the mathematics and properties of cryptographic systems, their analysis ("cryptanalysis") and subsidiary topics that generally make up cryptology, such as random number generation. As such, we welcome questions on topics such as:
- Asymmetric and symmetric cryptographic algorithms
- Cryptographic protocols
- Cryptanalysis techniques
- Cryptographic hash functions, cryptographically secure hashing
- Cryptography- and/or cryptanalysis-related Entropy and information theory
- Cryptographically Secure (Pseudo-)Random Number Generation
I don't really see how CRC (being a non-cryptographic checksum function) would fit it there. Only when questions go (for example) "CRC vs SHA1", mentioning/handling CRC makes sense.
If we want to generally include all questions about error detection functions and other non-cryptographic types of checksums, we should reconsider our general theme (currently being cryptography) as well as several related help-center descriptions. Something tells me we don't want to go there... we're a site dedicated to cryptography and cryptanalysis; not a mixed-purpose Stack Overflow kind of site. If we were, we would most probably have been called "Algorithms.SE" or something alike. Yet, we're Crypto.SE - a clear name that says it all!
Last but not least, it should be noted that questions about CRC tend to find a nice home at Stack Overflowquestions about CRC tend to find a nice home at Stack Overflow, just like checksums in generalchecksums in general.
Edit: As the recent migration shows, people like Mark Adler tend to check such Q&As at SOAs the recent migration shows, people like Mark Adler tend to check such Q&As at SO - so, things like CRC definitely have a safe haven at Stack Overflow!
