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rfl890 / isaacCSPRNG.js

Created June 19, 2023 16:32

	/*
	This is a "rewrite" of isaacCSPRNG by macmcmeans (https://github.com/macmcmeans/isaacCSPRNG)
	It has been adapted to use newer JavaScript features. I've
	removed some features that I deemed unnecessary,
	but you can write them yourselves easily by using
	the random() function as you would with Math.random().
	*/
	class isaacCSPRNG {
	#memory;
	#accumulator;

rfl890 / xoshiro256ss.lua

Created June 15, 2023 15:40

	local function rol64(x, k)
	return (x << k) \| (x >> (64 - k));
	end

	local function xoshiro256ss_step(state)
	local result = rol64(state[2] * 5, 7) * 9;
	local t = state[2] << 17;
	state[3] = state[3] ~ state[1]; state[4] = state[4] ~ state[2]; state[2] = state[2] ~ state[3]; state[1] = state[1] ~ state[4];
	state[3] = state[3] ~ t;
	state[4] = rol64(state[3], 45);

rfl890 / js-string-split.lua

Last active June 9, 2023 20:15

String.split with JavaScript-like behaviour in Lua

	local function js_string_split(s, f)
	local offset = 1
	local nextOffset = 0
	local result = {}
	if not string.find(s, f) then
	return { s }
	end
	if f == "" then
	for i = 1, #s do
	table.insert(result, s:sub(i, i))

rfl890 / btoa-atob-utf8.js

Created May 29, 2023 15:58

btoa and atob with UTF-8 support

	function btoaUTF8(data) {
	const utf8Data = new TextEncoder().encode(data);
	let binaryString = "";
	for (let i = 0; i < utf8Data.length; i++) {
	binaryString += String.fromCharCode(utf8Data[i]);
	}
	return btoa(binaryString);
	}
	function atobUTF8(data) {
	const decodedData = atob(data);