Generated Password in JavaScript
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<HTML>
<HEAD>
<TITLE>Password Generator</TITLE>
<!--
CryptoMX Tools
Copyright (C) 2004 - 2006 Derek Buitenhuis
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-->
</head>
<body>
<SCRIPT LANGUAGE="JavaScript">
function GeneratePassword() {
if (parseInt(navigator.appVersion) <= 3) {
alert("Sorry this only works in 4.0 browsers");
return true;
}
var length=8;
var sPassword = "";
length = document.aForm.charLen.value;
var noPunction = (document.aForm.punc.checked);
var randomLength = (document.aForm.rLen.checked);
if (randomLength) {
length = Math.random();
length = parseInt(length * 100);
length = (length % 7) + 6
}
for (i=0; i < length; i++) {
numI = getRandomNum();
if (noPunction) { while (checkPunc(numI)) { numI = getRandomNum(); } }
sPassword = sPassword + String.fromCharCode(numI);
}
document.aForm.passField.value = sPassword
return true;
}
function getRandomNum() {
// between 0 - 1
var rndNum = Math.random()
// rndNum from 0 - 1000
rndNum = parseInt(rndNum * 1000);
// rndNum from 33 - 127
rndNum = (rndNum % 94) + 33;
return rndNum;
}
function checkPunc(num) {
if ((num >=33) && (num <=47)) { return true; }
if ((num >=58) && (num <=64)) { return true; }
if ((num >=91) && (num <=96)) { return true; }
if ((num >=123) && (num <=126)) { return true; }
return false;
}
</SCRIPT>
<FORM NAME="aForm">
<TABLE>
<TR>
<TD>
Generated Password:<BR>
<INPUT TYPE="text" NAME="passField" VALUE="" SIZE="40"><BR>
</TD>
<TD>
# of chars<BR>
<INPUT TYPE="text" NAME="charLen" VALUE="8" SIZE="3">
</TD>
</TR>
<TR>
<TD>
<INPUT TYPE="checkbox" NAME="punc" CHECKED> No Punctuation Marks <BR>
<INPUT TYPE="checkbox" NAME="rLen"> Random Length (6 - 12) <BR>
</TD>
</TR>
<TR>
<TD COLSPAN="2" ALIGN=CENTER>
<br>
<INPUT TYPE="button" VALUE=" Generate Password " onClick="GeneratePassword()">
</TD>
</TR>
</TABLE>
</FORM>
</BODY>
</HTML>
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