Interesting, I learned recently the reason that Galois fields are so important in error correction codes (and encryption) is that they enable invertable matrix

Interesting, I learned recently the reason that Galois fields are so important in error correction codes (and encryption) is that they enable invertable matrix operations using integers which makes them easy compute in dedicated hardware. Apparently development of the error correction codes used on CDs wouldn't have been feasible with the computing power of the time without being able to build custom silicon for it.