javascript增加干擾數據實(shí)現簡(jiǎn)單加密效果

代碼如下:
var lishustr = "qwertyuiopasdfghjklmnbvcxz";
var s = lishustr.split("");
var lishua = ""; var lishub = ""; var lishuc = ""; var lishud = "";
lishua = s[getRandomNum(1,26)]; lishub = s[getRandomNum(1,26)]; lishuc = s[getRandomNum(1,26)]; lishud = s[getRandomNum(1,26)];
switch ("abcdefghijklmnopqrstuvwxyz".indexOf(lishud) + 1) {
case 1: case 2: case 3: case 4: case 5: case 6: case 7:
md5words = md5words + lishua + lishub + lishuc + lishud; break;
case 8: case 9: case 10: case 11: case 12: case 13: case 14:
md5words = lishua + md5words + lishub + lishuc + lishud; break;
case 15: case 16: case 17: case 18: case 19: case 20:
md5words = lishua + lishub + md5words + lishuc + lishud; break;
case 21: case 22: case 23: case 24: case 25: case 26:
md5words = lishua + lishub + lishuc + md5words + lishud; break;
}
function getRandomNum(lbound, ubound) {
return (Math.floor(Math.random() * (ubound - lbound)) + lbound);
}

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