Even just hearing the monicker "xor" brings me back to the nineties, analysing viruses that sometimes "encrypted" – or at least obfuscated – themselves using a

Even just hearing the monicker "xor" brings me back to the nineties, analysing viruses that sometimes "encrypted" – or at least obfuscated – themselves using a `xor` operation, or zeroing out a register in assembly code. A lot of nostalgic feelings and personal history for such a small logical operator...