Editing Longitudinal redundancy check (section)

== Other forms ==

Many protocols use an XOR-based longitudinal redundancy check byte (often called [[block check character]] or BCC), including the serial line interface protocol (SLIP, not to be confused with the later and well-known [[Serial Line Internet Protocol|Serial Line '''Internet''' Protocol]]),<ref>
{{IETF RFC|914}}.
"A Thinwire Protocol for connecting personal computers to the INTERNET".
Appendix D: "Serial Line Interface Protocol (SLIP)".
</ref>
the [[IEC 62056]]-21 standard for electrical-meter reading, smart cards as defined in [[ISO/IEC 7816]], and the [[ACCESS.bus]] protocol.

An 8-bit LRC such as this is equivalent to a [[cyclic redundancy check]] using the polynomial ''x''<sup>8</sup> + 1, but the independence of the bit streams is less clear when looked at in that way.