用dhtml做了一个密码管理器

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<TITLE> EMU'S PASSWORD MANAGER </TITLE>

<!--

/*--------------------------------- 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> </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>   <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>

<br>

<button onclick="addPwd()" disabled>Add new<br>password item</button>  

<button onclick="changeAccessPwd()" disabled>Change access<br>password</button>  

<button onclick="changeAccessPwdRemander()" disabled>Change access<br>password remander</button>  

<button onclick="createPwd()" disabled>Create a new<br>random password</button>  

</center>

</BODY>

</HTML>