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index.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<title>honda hack register</title>
</head>
<body>
<main>
<p >本田黑科技注册码生成器，根据当前最新版得来，后续版本有可能会改变算法<br /> 注册码格式为'XXXX-XXXX'，后四位字符随便输，不做判断(20210219)</p>
<div>
<div>
<div>
设备ID：<input type="text" id="device_id" placeholder="设备ID，例如'FDF4367A'" >
<button type="button" id="calc" onclick="on_button_click()" >计算</button>
</div>
<div>
注册码：<input id="reg_code" type="text" placeholder="注册码" readonly>
</div>
</div>
</div>
</main>
<script>
function is_valid_code(code) {
return typeof code === 'string'
&& code.length === 8
&& !isNaN(Number('0x' + code))
}
function hash_code(str) {
var hash = 0, i, chr;
for (i = 0; i < str.length; i++) {
chr = str.charCodeAt(i);
hash = ((hash << 5) - hash) + chr;
hash |= 0; // Convert to 32bit integer
}
return hash;
}
function round(v) {
return (v >= 0 || -1) * Math.floor(Math.abs(v));
}
function on_button_click() {
var device_id = document.getElementById("device_id").value.toUpperCase();
if(!is_valid_code(device_id)) {
alert('请输入8位设备ID');
return false;
}
var str = "google.com" + device_id;
var code = hash_code(str);
var c = Math.imul(code, code);
var d = round(53 / code);
var e = round(code / 4);
var f = Math.imul(e, 113);
var i = c + d + f;
var j = 65535 & ((i & 65535) + ((i & -65536) >>> 16));
var hex_str = j.toString(16).padStart(4,0);
document.getElementById("reg_code").value = hex_str.toUpperCase()+'-XXXX';
};
</script>
</body>
</html>