Question

怎么用js在客户端实现MD5加密

我不是要js的MD5加密代码，服务器端我用的是asp
我已经有一个MD5.js的文件 也能正常调用实现字符串的MD5（）加密
我现在要实现的是用js加密我form里密码文本域的东西 name是pwd
简单的说就是我在提交表单的时候（注册页的确定按钮 button1）要用js实现密码的加密 然后把加密的密码传递给服务器并存在数据库里 后面我可以自己写 就是用js编程我不会实现 点按钮加密密码并提交这一步 解决了再加分
先谢谢了

Answer 1

使用下面的函数，例如varpwd=hex_md5("hello world");对"hello world"进行md5加密。

var hexcase = 0;
function hex_md5(a) {
   if (a == "") return a;
   return rstr2hex(rstr_md5(str2rstr_utf8(a)))
}
function hex_hmac_md5(a, b) {
   return rstr2hex(rstr_hmac_md5(str2rstr_utf8(a), str2rstr_utf8(b)))
}
function md5_vm_test() {
   return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72"
}
function rstr_md5(a) {
   return binl2rstr(binl_md5(rstr2binl(a), a.length * 8))
}
function rstr_hmac_md5(c, f) {
   var e = rstr2binl(c);
   if (e.length > 16) {
       e = binl_md5(e, c.length * 8)
   }
   var a = Array(16),
   d = Array(16);
   for (var b = 0; b < 16; b++) {
       a[b] = e[b] ^ 909522486;
       d[b] = e[b] ^ 1549556828
   }
   var g = binl_md5(a.concat(rstr2binl(f)), 512 + f.length * 8);
   return binl2rstr(binl_md5(d.concat(g), 512 + 128))
}
function rstr2hex(c) {
   try {
       hexcase
   } catch(g) {
       hexcase = 0
   }
   var f = hexcase ? "0123456789ABCDEF": "0123456789abcdef";
   var b = "";
   var a;
   for (var d = 0; d < c.length; d++) {
       a = c.charCodeAt(d);
       b += f.charAt((a >>> 4) & 15) + f.charAt(a & 15)
   }
   return b
}
function str2rstr_utf8(c) {
   var b = "";
   var d = -1;
   var a, e;
   while (++d < c.length) {
       a = c.charCodeAt(d);
       e = d + 1 < c.length ? c.charCodeAt(d + 1) : 0;
       if (55296 <= a && a <= 56319 && 56320 <= e && e <= 57343) {
           a = 65536 + ((a & 1023) << 10) + (e & 1023);
           d++
       }
       if (a <= 127) {
           b += String.fromCharCode(a)
       } else {
           if (a <= 2047) {
               b += String.fromCharCode(192 | ((a >>> 6) & 31), 128 | (a & 63))
           } else {
               if (a <= 65535) {
                   b += String.fromCharCode(224 | ((a >>> 12) & 15), 128 | ((a >>> 6) & 63), 128 | (a & 63))
               } else {
                   if (a <= 2097151) {
                       b += String.fromCharCode(240 | ((a >>> 18) & 7), 128 | ((a >>> 12) & 63), 128 | ((a >>> 6) & 63), 128 | (a & 63))
                   }
               }
           }
       }
   }
   return b
}
function rstr2binl(b) {
   var a = Array(b.length >> 2);
   for (var c = 0; c < a.length; c++) {
       a[c] = 0
   }
   for (var c = 0; c < b.length * 8; c += 8) {
       a[c >> 5] |= (b.charCodeAt(c / 8) & 255) << (c % 32)
   }
   return a
}
function binl2rstr(b) {
   var a = "";
   for (var c = 0; c < b.length * 32; c += 8) {
       a += String.fromCharCode((b[c >> 5] >>> (c % 32)) & 255)
   }
   return a
}
function binl_md5(p, k) {
   p[k >> 5] |= 128 << ((k) % 32);
   p[(((k + 64) >>> 9) << 4) + 14] = k;
   var o = 1732584193;
   var n = -271733879;
   var m = -1732584194;
   var l = 271733878;
   for (var g = 0; g < p.length; g += 16) {
       var j = o;
       var h = n;
       var f = m;
       var e = l;
       o = md5_ff(o, n, m, l, p[g + 0], 7, -680876936);
       l = md5_ff(l, o, n, m, p[g + 1], 12, -389564586);
       m = md5_ff(m, l, o, n, p[g + 2], 17, 606105819);
       n = md5_ff(n, m, l, o, p[g + 3], 22, -1044525330);
       o = md5_ff(o, n, m, l, p[g + 4], 7, -176418897);
       l = md5_ff(l, o, n, m, p[g + 5], 12, 1200080426);
       m = md5_ff(m, l, o, n, p[g + 6], 17, -1473231341);
       n = md5_ff(n, m, l, o, p[g + 7], 22, -45705983);
       o = md5_ff(o, n, m, l, p[g + 8], 7, 1770035416);
       l = md5_ff(l, o, n, m, p[g + 9], 12, -1958414417);
       m = md5_ff(m, l, o, n, p[g + 10], 17, -42063);
       n = md5_ff(n, m, l, o, p[g + 11], 22, -1990404162);
       o = md5_ff(o, n, m, l, p[g + 12], 7, 1804603682);
       l = md5_ff(l, o, n, m, p[g + 13], 12, -40341101);
       m = md5_ff(m, l, o, n, p[g + 14], 17, -1502002290);
       n = md5_ff(n, m, l, o, p[g + 15], 22, 1236535329);
       o = md5_gg(o, n, m, l, p[g + 1], 5, -165796510);
       l = md5_gg(l, o, n, m, p[g + 6], 9, -1069501632);
       m = md5_gg(m, l, o, n, p[g + 11], 14, 643717713);
       n = md5_gg(n, m, l, o, p[g + 0], 20, -373897302);
       o = md5_gg(o, n, m, l, p[g + 5], 5, -701558691);
       l = md5_gg(l, o, n, m, p[g + 10], 9, 38016083);
       m = md5_gg(m, l, o, n, p[g + 15], 14, -660478335);
       n = md5_gg(n, m, l, o, p[g + 4], 20, -405537848);
       o = md5_gg(o, n, m, l, p[g + 9], 5, 568446438);
       l = md5_gg(l, o, n, m, p[g + 14], 9, -1019803690);
       m = md5_gg(m, l, o, n, p[g + 3], 14, -187363961);
       n = md5_gg(n, m, l, o, p[g + 8], 20, 1163531501);
       o = md5_gg(o, n, m, l, p[g + 13], 5, -1444681467);
       l = md5_gg(l, o, n, m, p[g + 2], 9, -51403784);
       m = md5_gg(m, l, o, n, p[g + 7], 14, 1735328473);
       n = md5_gg(n, m, l, o, p[g + 12], 20, -1926607734);
       o = md5_hh(o, n, m, l, p[g + 5], 4, -378558);
       l = md5_hh(l, o, n, m, p[g + 8], 11, -2022574463);
       m = md5_hh(m, l, o, n, p[g + 11], 16, 1839030562);
       n = md5_hh(n, m, l, o, p[g + 14], 23, -35309556);
       o = md5_hh(o, n, m, l, p[g + 1], 4, -1530992060);
       l = md5_hh(l, o, n, m, p[g + 4], 11, 1272893353);
       m = md5_hh(m, l, o, n, p[g + 7], 16, -155497632);
       n = md5_hh(n, m, l, o, p[g + 10], 23, -1094730640);
       o = md5_hh(o, n, m, l, p[g + 13], 4, 681279174);
       l = md5_hh(l, o, n, m, p[g + 0], 11, -358537222);
       m = md5_hh(m, l, o, n, p[g + 3], 16, -722521979);
       n = md5_hh(n, m, l, o, p[g + 6], 23, 76029189);
       o = md5_hh(o, n, m, l, p[g + 9], 4, -640364487);
       l = md5_hh(l, o, n, m, p[g + 12], 11, -421815835);
       m = md5_hh(m, l, o, n, p[g + 15], 16, 530742520);
       n = md5_hh(n, m, l, o, p[g + 2], 23, -995338651);
       o = md5_ii(o, n, m, l, p[g + 0], 6, -198630844);
       l = md5_ii(l, o, n, m, p[g + 7], 10, 1126891415);
       m = md5_ii(m, l, o, n, p[g + 14], 15, -1416354905);
       n = md5_ii(n, m, l, o, p[g + 5], 21, -57434055);
       o = md5_ii(o, n, m, l, p[g + 12], 6, 1700485571);
       l = md5_ii(l, o, n, m, p[g + 3], 10, -1894986606);
       m = md5_ii(m, l, o, n, p[g + 10], 15, -1051523);
       n = md5_ii(n, m, l, o, p[g + 1], 21, -2054922799);
       o = md5_ii(o, n, m, l, p[g + 8], 6, 1873313359);
       l = md5_ii(l, o, n, m, p[g + 15], 10, -30611744);
       m = md5_ii(m, l, o, n, p[g + 6], 15, -1560198380);
       n = md5_ii(n, m, l, o, p[g + 13], 21, 1309151649);
       o = md5_ii(o, n, m, l, p[g + 4], 6, -145523070);
       l = md5_ii(l, o, n, m, p[g + 11], 10, -1120210379);
       m = md5_ii(m, l, o, n, p[g + 2], 15, 718787259);
       n = md5_ii(n, m, l, o, p[g + 9], 21, -343485551);
       o = safe_add(o, j);
       n = safe_add(n, h);
       m = safe_add(m, f);
       l = safe_add(l, e)
   }
   return Array(o, n, m, l)
}
function md5_cmn(h, e, d, c, g, f) {
   return safe_add(bit_rol(safe_add(safe_add(e, h), safe_add(c, f)), g), d)
}
function md5_ff(g, f, k, j, e, i, h) {
   return md5_cmn((f & k) | ((~f) & j), g, f, e, i, h)
}
function md5_gg(g, f, k, j, e, i, h) {
   return md5_cmn((f & j) | (k & (~j)), g, f, e, i, h)
}
function md5_hh(g, f, k, j, e, i, h) {
   return md5_cmn(f ^ k ^ j, g, f, e, i, h)
}
function md5_ii(g, f, k, j, e, i, h) {
   return md5_cmn(k ^ (f | (~j)), g, f, e, i, h)
}
function safe_add(a, d) {
   var c = (a & 65535) + (d & 65535);
   var b = (a >> 16) + (d >> 16) + (c >> 16);
   return (b << 16) | (c & 65535)
}
function bit_rol(a, b) {
   return (a << b) | (a >>> (32 - b))
};

Answer 2

假如你的JS
MD5函数名是md5
function
$(id_){return
document.getElementById(id_);}
function
enCodePWD(){
$("pwd").value
=
md5($("pwd2").value);
}
<input
type=password
id="pwd2"
onkeydown="enCodePWD()"
/>
原始密码，显示给用户看的
<input
type=hidden
id="pwd"
/>
MD5加密以后的密码，隐藏

Answer 3

假如你的JS MD5函数名是md5

function $(id_){return document.getElementById(id_);}

function enCodePWD(){
$("pwd").value = md5($("pwd2").value);
}

<input type=password id="pwd2" onkeydown="enCodePWD()" /> 原始密码，显示给用户看的
<input type=hidden id="pwd" /> MD5加密以后的密码，隐藏

Answer 4

以下是个例子，使用自定义的函数提交表单
<form name="form1" method="post" action="xxx.asp">
用户名：<input name="user"><br>
密码：<input type="password" name="password_plain"><br>
<input type="hidden" name="password_md5">
<input type="button" value="提交" onclick="mysubmit()">

<script language="javascript">
function mysubmit()
{
document.form1.password_md5.value=md5(document.form1.password_plain);
document.form1.submit
}
</script>