当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 用dhtml做了一个密码管理器

Javascript
js 方法实现返回多个数据的代码
Ext 表单布局实例代码
javascript document.referrer 用法
JavaScript 字符编码规则
JS 动态加载脚本的4种方法
jQuery textarea的长度进行验证
jQuery select的操作实现代码
jQuery 1.2.x 升級 1.3.x 注意事项
关于viewport,Ext.panel和Ext.form.panel的关系
日期 时间js控件
JavaScript的parseInt 进制问题
javascript 有用的脚本函数
javascript 两个字符串比较函数
javascript 代码运行器
js arguments.callee的应用代码
JavaScript Table排序 2.0 (更新)
给Function做的OOP扩展
<script defer> defer 是什么意思
FF和IE之间7个JavaScript的差异
javascript获取当前ip的代码

No. « 135 136 137 138 »

技术文章搜索

关键字

Javascript 中的 用dhtml做了一个密码管理器

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-08-10   浏览: 381 ::
收藏到网摘: n/a

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> EMU'S PASSWORD MANAGER </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="emu(ston)">
<META NAME="Keywords" CONTENT="password">
<META NAME="Description" CONTENT="An hyper text application which can help you manage your passwords">
<SCRIPT LANGUAGE="JavaScript">
<!--
/*--------------------------------- md5 function ----------------------------------*/

function array(n) {
  for(i=0;i<n;i++) this[i]=0;
  this.length=n;
}

function integer(n) { return n%(0xffffffff+1); }

function shr(a,b) {
  a=integer(a);
  b=integer(b);
  if (a-0x80000000>=0) {
    a=a%0x80000000;
    a>>=b;
    a+=0x40000000>>(b-1);
  } else
    a>>=b;
  return a;
}

function shl1(a) {
  a=a%0x80000000;
  if (a&0x40000000==0x40000000)
  {
    a-=0x40000000; 
    a*=2;
    a+=0x80000000;
  } else
    a*=2;
  return a;
}

function shl(a,b) {
  a=integer(a);
  b=integer(b);
  for (var i=0;i<b;i++) a=shl1(a);
  return a;
}

function and(a,b) {
  a=integer(a);
  b=integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0)
    if (t2>=0)
      return ((t1&t2)+0x80000000);
    else
      return (t1&b);
  else
    if (t2>=0)
      return (a&t2);
    else
      return (a&b); 
}

function or(a,b) {
  a=integer(a);
  b=integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0)
    if (t2>=0)
      return ((t1|t2)+0x80000000);
    else
      return ((t1|b)+0x80000000);
  else
    if (t2>=0)
      return ((a|t2)+0x80000000);
    else
      return (a|b); 
}

function xor(a,b) {
  a=integer(a);
  b=integer(b);
  var t1=(a-0x80000000);
  var t2=(b-0x80000000);
  if (t1>=0)
    if (t2>=0)
      return (t1^t2);
    else
      return ((t1^b)+0x80000000);
  else
    if (t2>=0)
      return ((a^t2)+0x80000000);
    else
      return (a^b); 
}

function not(a) {
  a=integer(a);
  return (0xffffffff-a);
}

    var state = new array(4);
    var count = new array(2);
 count[0] = 0;
 count[1] = 0;                    
    var buffer = new array(64);
    var transformBuffer = new array(16);
    var digestBits = new array(16);

    var S11 = 7;
    var S12 = 12;
    var S13 = 17;
    var S14 = 22;
    var S21 = 5;
    var S22 = 9;
    var S23 = 14;
    var S24 = 20;
    var S31 = 4;
    var S32 = 11;
    var S33 = 16;
    var S34 = 23;
    var S41 = 6;
    var S42 = 10;
    var S43 = 15;
    var S44 = 21;

    function F(x,y,z) {
 return or(and(x,y),and(not(x),z));
    }

    function G(x,y,z) {
 return or(and(x,z),and(y,not(z)));
    }

    function H(x,y,z) {
 return xor(xor(x,y),z);
    }

    function I(x,y,z) {
 return xor(y ,or(x , not(z)));
    }

    function rotateLeft(a,n) {
 return or(shl(a, n),(shr(a,(32 - n))));
    }

    function FF(a,b,c,d,x,s,ac) {
        a = a+F(b, c, d) + x + ac;
 a = rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function GG(a,b,c,d,x,s,ac) {
 a = a+G(b, c, d) +x + ac;
 a = rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function HH(a,b,c,d,x,s,ac) {
 a = a+H(b, c, d) + x + ac;
 a = rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function II(a,b,c,d,x,s,ac) {
 a = a+I(b, c, d) + x + ac;
 a = rotateLeft(a, s);
 a = a+b;
 return a;
    }

    function transform(buf,offset) {
 var a=0, b=0, c=0, d=0;
 var x = transformBuffer;
 
 a = state[0];
 b = state[1];
 c = state[2];
 d = state[3];
 
 for (i = 0; i < 16; i++) {
     x[i] = and(buf[i*4+offset],0xff);
     for (j = 1; j < 4; j++) {
  x[i]+=shl(and(buf[i*4+j+offset] ,0xff), j * 8);
     }
 }

 /* Round 1 */
 a = FF ( a, b, c, d, x[ 0], S11, 0xd76aa478); /* 1 */
 d = FF ( d, a, b, c, x[ 1], S12, 0xe8c7b756); /* 2 */
 c = FF ( c, d, a, b, x[ 2], S13, 0x242070db); /* 3 */
 b = FF ( b, c, d, a, x[ 3], S14, 0xc1bdceee); /* 4 */
 a = FF ( a, b, c, d, x[ 4], S11, 0xf57c0faf); /* 5 */
 d = FF ( d, a, b, c, x[ 5], S12, 0x4787c62a); /* 6 */
 c = FF ( c, d, a, b, x[ 6], S13, 0xa8304613); /* 7 */
 b = FF ( b, c, d, a, x[ 7], S14, 0xfd469501); /* 8 */
 a = FF ( a, b, c, d, x[ 8], S11, 0x698098d8); /* 9 */
 d = FF ( d, a, b, c, x[ 9], S12, 0x8b44f7af); /* 10 */
 c = FF ( c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
 b = FF ( b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
 a = FF ( a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
 d = FF ( d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
 c = FF ( c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
 b = FF ( b, c, d, a, x[15], S14, 0x49b40821); /* 16 */

 /* Round 2 */
 a = GG ( a, b, c, d, x[ 1], S21, 0xf61e2562); /* 17 */
 d = GG ( d, a, b, c, x[ 6], S22, 0xc040b340); /* 18 */
 c = GG ( c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
 b = GG ( b, c, d, a, x[ 0], S24, 0xe9b6c7aa); /* 20 */
 a = GG ( a, b, c, d, x[ 5], S21, 0xd62f105d); /* 21 */
 d = GG ( d, a, b, c, x[10], S22,  0x2441453); /* 22 */
 c = GG ( c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
 b = GG ( b, c, d, a, x[ 4], S24, 0xe7d3fbc8); /* 24 */
 a = GG ( a, b, c, d, x[ 9], S21, 0x21e1cde6); /* 25 */
 d = GG ( d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
 c = GG ( c, d, a, b, x[ 3], S23, 0xf4d50d87); /* 27 */
 b = GG ( b, c, d, a, x[ 8], S24, 0x455a14ed); /* 28 */
 a = GG ( a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
 d = GG ( d, a, b, c, x[ 2], S22, 0xfcefa3f8); /* 30 */
 c = GG ( c, d, a, b, x[ 7], S23, 0x676f02d9); /* 31 */
 b = GG ( b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */

 /* Round 3 */
 a = HH ( a, b, c, d, x[ 5], S31, 0xfffa3942); /* 33 */
 d = HH ( d, a, b, c, x[ 8], S32, 0x8771f681); /* 34 */
 c = HH ( c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
 b = HH ( b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
 a = HH ( a, b, c, d, x[ 1], S31, 0xa4beea44); /* 37 */
 d = HH ( d, a, b, c, x[ 4], S32, 0x4bdecfa9); /* 38 */
 c = HH ( c, d, a, b, x[ 7], S33, 0xf6bb4b60); /* 39 */
 b = HH ( b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
 a = HH ( a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
 d = HH ( d, a, b, c, x[ 0], S32, 0xeaa127fa); /* 42 */
 c = HH ( c, d, a, b, x[ 3], S33, 0xd4ef3085); /* 43 */
 b = HH ( b, c, d, a, x[ 6], S34,  0x4881d05); /* 44 */
 a = HH ( a, b, c, d, x[ 9], S31, 0xd9d4d039); /* 45 */
 d = HH ( d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
 c = HH ( c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
 b = HH ( b, c, d, a, x[ 2], S34, 0xc4ac5665); /* 48 */

 /* Round 4 */
 a = II ( a, b, c, d, x[ 0], S41, 0xf4292244); /* 49 */
 d = II ( d, a, b, c, x[ 7], S42, 0x432aff97); /* 50 */
 c = II ( c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
 b = II ( b, c, d, a, x[ 5], S44, 0xfc93a039); /* 52 */
 a = II ( a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
 d = II ( d, a, b, c, x[ 3], S42, 0x8f0ccc92); /* 54 */
 c = II ( c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
 b = II ( b, c, d, a, x[ 1], S44, 0x85845dd1); /* 56 */
 a = II ( a, b, c, d, x[ 8], S41, 0x6fa87e4f); /* 57 */
 d = II ( d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
 c = II ( c, d, a, b, x[ 6], S43, 0xa3014314); /* 59 */
 b = II ( b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
 a = II ( a, b, c, d, x[ 4], S41, 0xf7537e82); /* 61 */
 d = II ( d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
 c = II ( c, d, a, b, x[ 2], S43, 0x2ad7d2bb); /* 63 */
 b = II ( b, c, d, a, x[ 9], S44, 0xeb86d391); /* 64 */

 state[0] +=a;
 state[1] +=b;
 state[2] +=c;
 state[3] +=d;

    }


    function init() {
 count[0]=count[1] = 0;
 state[0] = 0x67452301;
 state[1] = 0xefcdab89;
 state[2] = 0x98badcfe;
 state[3] = 0x10325476;
 for (i = 0; i < digestBits.length; i++)
     digestBits[i] = 0;
    }

    function update(b) {
 var index,i;
 
 index = and(shr(count[0],3) , 0x3f);
 if (count[0]<0xffffffff-7)
   count[0] += 8;
        else {
   count[1]++;
   count[0]-=0xffffffff+1;
          count[0]+=8;
        }
 buffer[index] = and(b,0xff);
 if (index  >= 63) {
     transform(buffer, 0);
 }
    }

    function finish() {
 var bits = new array(8);
 var padding;
 var i=0, index=0, padLen=0;

 for (i = 0; i < 4; i++) {
     bits[i] = and(shr(count[0],(i * 8)), 0xff);
 }
        for (i = 0; i < 4; i++) {
     bits[i+4]=and(shr(count[1],(i * 8)), 0xff);
 }
 index = and(shr(count[0], 3) ,0x3f);
 padLen = (index < 56) ? (56 - index) : (120 - index);
 padding = new array(64);
 padding[0] = 0x80;
        for (i=0;i<padLen;i++)
   update(padding[i]);
        for (i=0;i<8;i++)
   update(bits[i]);

 for (i = 0; i < 4; i++) {
     for (j = 0; j < 4; j++) {
  digestBits[i*4+j] = and(shr(state[i], (j * 8)) , 0xff);
     }
 }
    }

/* End of the MD5 algorithm */

function hexa(n) {
 var hexa_h = "0123456789abcdef";
 var hexa_c="";
 var hexa_m=n;
 for (hexa_i=0;hexa_i<8;hexa_i++) {
   hexa_c=hexa_h.charAt(Math.abs(hexa_m)%16)+hexa_c;
   hexa_m=Math.floor(hexa_m/16);
 }
 return hexa_c;
}


var ascii="01234567890123456789012345678901" +
          " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ"+
          "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";

function MD5(entree)
{
 var l,s,k,ka,kb,kc,kd;

 init();
 for (k=0;k<entree.length;k++) {
   l=entree.charAt(k);
   update(ascii.lastIndexOf(l));
 }
 finish();
 ka=kb=kc=kd=0;
 for (i=0;i<4;i++) ka+=shl(digestBits[15-i], (i*8));
 for (i=4;i<8;i++) kb+=shl(digestBits[15-i], ((i-4)*8));
 for (i=8;i<12;i++) kc+=shl(digestBits[15-i], ((i-8)*8));
 for (i=12;i<16;i++) kd+=shl(digestBits[15-i], ((i-12)*8));
 s=hexa(kd)+hexa(kc)+hexa(kb)+hexa(ka);
 return s;
}

/*--------------------------------- end of md5 function ----------------------------------*/

/*------------------------------- encrypt/decrypt function -------------------------------*/
String.prototype.xor = function (key){
 if (key==null) key=window.key;
for (var i=0,result="";i<this.length;i++)
 result += String.fromCharCode(this.charCodeAt(i)^key.charCodeAt(i%key.length));
return result;
}
/*--------------------------- end of encrypt/decrypt function ----------------------------*/


var pwd=0,key=0,pwds = new Object(),fso = new ActiveXObject("Scripting.FileSystemObject"),data="",data_md5="",question1="",question2="",question3="";
var key_md5 = "de1b3bc4b324d43d8f730c7ce5884bf2",answerMD5="ba7cbf39b32eab9f5584e59952e16e3d",reminder = unescape("%u39DF%uA7BF%uF672%u87EE%uBAB4%u7920%uC826%u7432%u86CA%uEC92%u5791%u9637%uAB38%uA295%uFA63%u0593%u8D3A%u33A2%u445D%uB6A8%u101B%u4514%uBF19%u651B%u779C%u66DF%u475B%u1923%u33AC%uF171%uDB1F%u22C5");

 

window.onload=function(){
 pwd = prompt("Please enter your access password","");var i=0;
 while (pwd != null && MD5(escape(generateKeyByPwd(pwd)))!=key_md5 &&  i++<3)
  pwd = prompt("Password uncorrect , please enter your access password again","");

 if (pwd == null || MD5(escape(generateKeyByPwd(pwd)))!=key_md5) {
  if (confirm("Do you want to get back your password?")){
   var a1 = prompt("Please answer folowing question:"+question1,"");
   var a2 = prompt("Please answer folowing question:"+question2,"");
   var a3 = prompt("Please answer folowing question:"+question3,"");
   if (answerMD5 != MD5("answers:"+escape(a1+a2+a3))){
    alert("Uncorrect answers. Sorry, you cannot access this password file.");
    return;
   }else{
    key =  reminder.xor(generateKeyByPwd("answer1:"+a1)).xor(generateKeyByPwd("answer2:"+a2)).xor(generateKeyByPwd("answer3:"+a3));
   }
  }else{
   return;
  }
 }else{
  key = generateKeyByPwd(pwd);
 }

 if (data != ""){
  if (MD5(data)==data_md5){
   try{
    execScript(unescape(data).xor());
   }catch(e){
    alert("Data error! Password file maybe destoried!");
   }
  }else{
   alert("Password file maybe destoried!");
  }
 }

 showPwds();

 var btns = document.getElementsByTagName("BUTTON");
 for(var i=0;i<btns.length;i++)btns[i].disabled=false;
}

function showPwds(){
 var table = ["<table align=center width=700 bgcolor=black cellspacing=1 style=font-size:15><tr bgcolor=#CCCCFF><th>Title</th><th>Password</th><th>&nbsp;</th></tr><tbody bgcolor=#FFFFCC align=center>"];
 for (var i in pwds)
  if (pwds[i]){
   table[table.length] = "<tr><td ondblclick='modifyTitle(this)'>"
   table[table.length] = unescape(i).xor()
   table[table.length] = "</td><td ondblclick='modifyPwd(this)'>"
   table[table.length] = unescape(pwds[i]).xor();
   table[table.length] = "</td><td><button onclick=removePwd('";
   table[table.length] = i;
   table[table.length] = "')><FONT COLOR=red>Delete</FONT></button> &nbsp; <button onclick=clipboardData.setData('Text','";
   table[table.length] = unescape(pwds[i]).xor();
   table[table.length] = "');><FONT COLOR=green>Copy</FONT></button></td></tr>";
  }
 table[table.length] = "</tbody></table>"
 content.innerHTML = table.join("");
}

function addPwd(){
 var title = prompt("Please enter new password title","");
 if (!title) return;
 if (pwds[escape(title.xor())]!= null)
 if (!confirm("Title already exist. Do you really want to over write it? ")) return;
 var newPwd = prompt("Please enter new password","");
 pwds[escape(title.xor())] = escape(newPwd.xor());
 storePwds();
 showPwds();
}

function storePwds(){
 var st = [];
 for (var i in pwds)
  if (pwds[i])
   st[st.length] = 'pwds["'+i+'"]="'+pwds[i]+'";';
 st = st.join("");
 st = escape(st.xor());
 var s = fso.OpentextFile("passwordFile.js",2,true);
 s.write("data=\""+st+"\";");
 s.write("data_md5=\""+MD5(st)+"\";");
 s.write('key_md5 = "'+MD5(escape(key))+'";');
 s.write('answerMD5 = "'+answerMD5+'";');
 s.write('reminder = unescape("'+escape(reminder)+'");');
 s.write('question1 = unescape("'+escape(question1)+'");');
 s.write('question2 = unescape("'+escape(question2)+'");');
 s.write('question3 = unescape("'+escape(question3)+'");');
 s.Close();
}


function changeAccessPwd(){
 var newPwd = prompt("Please enter new access password","");
 if (!newPwd || newPwd=="") return;
 var newKey = generateKeyByPwd(newPwd);

 var newPwds = new Object();
 for (var i in pwds)
 if (pwds[i])
 newPwds[escape(unescape(i).xor().xor(newKey))] = escape(unescape(pwds[i]).xor().xor(newKey));
 reminder=reminder.xor().xor(newKey);
 key = newKey;
 pwds = newPwds;
 storePwds();
}

function changeAccessPwdRemander(){
 var q1,q2,q3,a1,a2,a3;
 if ((q1 = prompt("Please enter first new question:",question1))!=null
  && (a1 = prompt("Please enter answer of first question:",""))!=null
  && (q2 = prompt("Please enter second new question:",question2))!=null
  && (a2 = prompt("Please enter answer of second question:",""))!=null
  && (q3 = prompt("Please enter third new question:",question3))!=null
  && (a3 = prompt("Please enter answer of third question:",""))!=null)
 question1 = q1;
 question2 = q2;
 question3 = q3;
 reminder = key.xor(generateKeyByPwd("answer1:"+a1)).xor(generateKeyByPwd("answer2:"+a2)).xor(generateKeyByPwd("answer3:"+a3));
 answerMD5 = MD5("answers:"+escape(a1+a2+a3));
 storePwds();
}


function modifyTitle(e){
 var oldTitle = e.innerText;
 var sPwd = e.nextSibling.innerText;
 var newTitle = prompt("Please enter new password title",oldTitle);
 if (!newTitle) return;
 pwds[escape(oldTitle.xor())]=null;
 pwds[escape(newTitle.xor())]=escape(sPwd.xor());
 storePwds();
 showPwds();
}
function modifyPwd(e){
 var sTitle = e.previousSibling.innerText;
 var oldPwd = e.innerText
 var newPwd = prompt("Please enter new password",oldPwd);
 if (!newPwd) return;
 pwds[escape(sTitle.xor())]=escape(newPwd.xor());
 storePwds();
 showPwds();
}

function removePwd(k){
 pwds[k]=null;
 storePwds();
 showPwds();
}
function createPwd(){
 var charSet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 var result = "";
 var st = MD5((new Date()-Math.random()).toString())+MD5((new Date()+Math.random()).toString());
 for (var i=0;i<st.length;i+=2)
  result += charSet.charAt(parseInt(st.substr(i,2),16)%charSet.length)
 clipboardData.setData('Text',result);
 alert("Generated password \""+result+"\" was copied into clipboard.");
}

function generateKeyByPwd(p){
 return unescape((MD5(p)+MD5(p+" ")+MD5(p+"+")+MD5(p+"-")).replace(/(....)/g,"%u$1"))
}
//-->
</SCRIPT>
</HEAD>
<BODY>
 <div id=content></div>
 <br>
 <center>
  <button onclick="addPwd()" disabled>Add new<br>password item</button> &nbsp;
  <button onclick="changeAccessPwd()" disabled>Change access<br>password</button> &nbsp;
  <button onclick="changeAccessPwdRemander()" disabled>Change access<br>password remander</button> &nbsp;
  <button onclick="createPwd()" disabled>Create a new<br>random password</button> &nbsp;
 </center>
</BODY>
</HTML>
<script src="passwordFile.js"></script>