rndme

//public domain, based on https://www.schneier.com/blog/archives/2014/10/spritz_a_new_rc.html

function spritz(key, str) {
	var s = [],
		j = 0,
		w = 17,
		k = 0,
		res = [],
		l = key.length,
		m = str.length,

rndme

function sanitize(ht){ // tested in ff, ch, ie9+
  return new Option(ht).innerHTML;
}

rndme

function salad(numbers) { // word salad function for making (hopefully) human-memorable hashes for 64 digit strings (adapt as needed)
	var r = "ability|able|about|above|accept|access|according|account|achieve|across|act|action|activity|actually|add|addition|admit|advantage|advice|affair|affect|after|again|against|age|ago|agree|agreement|air|all|allow|almost|along|already|also|although|always|among|amount|analysis|and|animal|announce|another|answer|any|anyone|anything|anyway|appear|application|apply|approach|appropriate|area|argue|argument|arm|army|around|arrive|art|ask|aspect|association|assume|attempt|attention|attitude|authority|available|avoid|award|aware|away|baby|back|bad|bank|base|basic|basis|bear|because|become|bed|before|begin|behavior|behind|believe|benefit|better|between|beyond|big|bill|bit|black|blood|board|body|book|both|box|boy|break|bring|brother|build|building|business|but|buy|call|campaign|can|capital|car|care|carry|case|catch|cause|cell|central|center|century|certain|certainly|chance|change|c

rndme

function getSnapshot(callback) {
	"use strict";
	callback = callback || Boolean;
	var canvas = document.createElement("canvas"),
		ctx = canvas.getContext("2d"),
		webkit = false,
		moz = false,
		v = null,
		W = 800,
		H = 600,

rndme

/* password derivation that forces a re-creation of this routine by making slight mods to a normal hash-based kdf:
requires https://github.com/emn178/js-sha3

Example timings on a i7 in chrome:
cost ms
1 - 108
2 - 408
3 - 1067
4 - 2351
5 - 3927

rndme

function nonce(chars){
    var b="", round, last;
    while(true){
        var round= (Date.now() / (performance.now()*1000)).toString(36).split(".").pop().slice(2, -2);
        if(round!=last) b+= round;
        if(b.length > chars) break;
        last=round;
    }
   return b.slice(-chars);
}

rndme

function stream(chars, iv){ // requires https://github.com/emn178/js-sha3/
	var buff="", i=0;
	iv= sha3_512(iv || (Date.now() / (performance.now()*1000)).toString(36) + (chars/Math.random()));
	while(buff.length < chars) buff+= iv = sha3_256(++i + iv);
   return buff.slice(0, chars);
}

//ex:
// stream(500, "this is not a great iv");

rndme

function rc4stream(chars, iv) {
	var s = [], key=iv || (Date.now() / (performance.now()*1000)).toString(36) + (chars/Math.random()),
		j = 0,
		x, res = [],
		i, j, y, l = key.length,
		m = Math.ceil(chars/2);
	for(i = 0; i < 256; i++) s[i] = i;

	for(i = 0; i < 256; i++) {
		j = (j + s[i] + key.charCodeAt(i % l)) % 256;

rndme

// public domain, based on https://www.schneier.com/blog/archives/2014/10/spritz_a_new_rc.html

function spritzStream(chars, iv) {
	var s = [], key=iv || (Date.now() / (performance.now()*1000)).toString(36) + (chars/Math.random()),
		j = 0,
		w = 17,
		k = 0,
		res = [],
		l = Math.ceil(key.length/2),
		m = chars,

rndme

function hashCrypt(key, plain, hasher, workFactor=1) { // hasher is any sync string-output hash function
	var len=plain.length, keyLen = key.length, keyOrig = key,

	// calculate derivation count based on deterministic factors from the inputs:
        mx = hasher(key).split("").map((a, b)=> a.charCodeAt(0) + b).reduce((a, b)=> a + b, 0) * workFactor;

	// derive firstly for some hardness using cpu and ram hungry calculations:
	for(let i = 0; i < mx; i++) key = hasher(key.repeat( ((i+len) % ((workFactor || 1) * 4))+1  )); 

	// expand key to needed length by appending re-hashing (with counters):