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I was wondering about some other valid alternative to the XOR Bit-Level
encryption algorithm.
well last night i wrote my question in a kind of hurry so what I was really meaning was to find out what other alternatives are out there beside the XOR to keep some sort of basic encryption, as far as I was thinking I was considering a bit swapping following a simple rule like a math formula with a key or so.
xor eax, eaxis actually used to substitutemov eax, 0in assembly (because it has same speed and is shorter in bytecode). So, if XOR is as fast as MOV, there is practically no such thing that has “lower computational complexity” than XOR and does similar thing (in terms of this question).