China DOS Union

Han~ Just download two QQs, one from Tencent and one from Shanhuhong, isn't that done?? I'm just like this...

How to convert the password? How to convert the password?

First, convert the password using MD5, then transform it using Base64. Maybe you can calculate Base64 mentally, but MD5 is impossible; you still need to use a tool to transform it. The tool is provided on the 10th floor.

How to generate the password after PWDHASH using MD5 + base64?

...Hmm, study, study

md5 can be done, but base64 can't. The password I generated doesn't work. I downloaded that tool, but I just want to know how to change it! Could some friend give me some advice? My base64 tool seems to calculate incorrectly.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>Base64 Encoding and Encryption</title>
</head>

<body>
<table width="773" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td>
<script language=javascript>
var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var base64DecodeChars = new Array(
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);

function base64encode(str) {
var out, i, len;
var c1, c2, c3;

len = str.length;
i = 0;
out = "";
while(i < len) {
c1 = str.charCodeAt(i++) & 0xff;
if(i == len)
{
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt((c1 & 0x3) << 4);
out += "==";
break;
}
c2 = str.charCodeAt(i++);
if(i == len)
{
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
out += base64EncodeChars.charAt((c2 & 0xF) << 2);
out += "=";
break;
}
c3 = str.charCodeAt(i++);
out += base64EncodeChars.charAt(c1 >> 2);
out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
out += base64EncodeChars.charAt(c3 & 0x3F);
}
return out;
}

function base64decode(str) {
var c1, c2, c3, c4;
var i, len, out;

len = str.length;
i = 0;
out = "";
while(i < len) {
/* c1 */
do {
c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
} while(i < len && c1 == -1);
if(c1 == -1)
break;

/* c2 */
do {
c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
} while(i < len && c2 == -1);
if(c2 == -1)
break;

out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));

/* c3 */
do {
c3 = str.charCodeAt(i++) & 0xff;
if(c3 == 61)
return out;
c3 = base64DecodeChars[c3];
} while(i < len && c3 == -1);
if(c3 == -1)
break;

out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));

/* c4 */
do {
c4 = str.charCodeAt(i++) & 0xff;
if(c4 == 61)
return out;
c4 = base64DecodeChars[c4];
} while(i < len && c4 == -1);
if(c4 == -1)
break;
out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
}
return out;
}

function utf16to8(str) {
var out, i, len, c;

out = "";
len = str.length;
for(i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}

function utf8to16(str) {
var out, i, len, c;
var char2, char3;

out = "";
len = str.length;
i = 0;
while(i < len) {
c = str.charCodeAt(i++);
switch(c >> 4)
{
case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
// 0xxxxxxx
out += str.charAt(i-1);
break;
case 12: case 13:
// 110x xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
break;
case 14:
// 1110 xxxx 10xx xxxx 10xx xxxx
char2 = str.charCodeAt(i++);
char3 = str.charCodeAt(i++);
out += String.fromCharCode(((c & 0x0F) << 12) |
((char2 & 0x3F) << 6) |
((char3 & 0x3F) << 0));
break;
}
}

return out;
}


function doit() {
var f = document.f
f.output.value = base64encode(utf16to8(f.source.value))
f.decode.value = utf8to16(base64decode(f.output.value))
}
</script>
<H1 align="center">Base64 Encoding and Encryption
</H1>
<FORM NAME="f">
Original Code<BR>
<TEXTAREA NAME="source" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
Base64 encode<BR>
<TEXTAREA NAME="output" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
Base64 decode<BR>
<TEXTAREA NAME="decode" ROWS=4 COLS=60 WRAP="soft"></TEXTAREA><BR><BR>
<INPUT TYPE=BUTTON VALUE="Convert" ONCLICK="doit()">
</FORM>
</td>
</tr>
</table>
</body>
</html>

I don't understand JavaScript very well, but it should be okay to use it to do Base64 and md5. I found some information online and can implement md5+base64 transformation. The following is a complete web page
<HTML> <HEAD> <META http-equiv=Content-Type content=text/html; charset=gb2312> <TITLE>JavaScript的md5加密办法</TITLE> </HEAD> <BODY > <input id=test value=> <input type=button value=md5 onclick="alert(hex_md5(test.value))"> <input type=button value=md5+Base64 onclick="alert(b64_md5(test.value))"> <script> var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */ var b64pad = "="; /* base-64 pad character. "=" for strict RFC compliance */ var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */ function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));} function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); } function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); } function calcMD5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} function md5_vm_test() { return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; } function core_md5(x, len) { x |= 0x80 << ((len) % 32); x = len; var a = 1732584193; var b = -271733879; var c = -1732584194; var d = 271733878; for(var i = 0; i < x.length; i += 16) { var olda = a; var oldb = b; var oldc = c; var oldd = d; a = md5_ff(a, b, c, d, x, 7 , -680876936); d = md5_ff(d, a, b, c, x, 12, -389564586); c = md5_ff(c, d, a, b, x, 17, 606105819); b = md5_ff(b, c, d, a, x, 22, -1044525330); a = md5_ff(a, b, c, d, x, 7 , -176418897); d = md5_ff(d, a, b, c, x, 12, 1200080426); c = md5_ff(c, d, a, b, x, 17, -1473231341); b = md5_ff(b, c, d, a, x, 22, -45705983); a = md5_ff(a, b, c, d, x, 7 , 1770035416); d = md5_ff(d, a, b, c, x, 12, -1958414417); c = md5_ff(c, d, a, b, x, 17, -42063); b = md5_ff(b, c, d, a, x, 22, -1990404162); a = md5_ff(a, b, c, d, x, 7 , 1804603682); d = md5_ff(d, a, b, c, x, 12, -40341101); c = md5_ff(c, d, a, b, x, 17, -1502002290); b = md5_ff(b, c, d, a, x, 22, 1236535329); a = md5_gg(a, b, c, d, x, 5 , -165796510); d = md5_gg(d, a, b, c, x, 9 , -1069501632); c = md5_gg(c, d, a, b, x, 14, 643717713); b = md5_gg(b, c, d, a, x, 20, -373897302); a = md5_gg(a, b, c, d, x, 5 , -701558691); d = md5_gg(d, a, b, c, x, 9 , 38016083); c = md5_gg(c, d, a, b, x, 14, -660478335); b = md5_gg(b, c, d, a, x, 20, -405537848); a = md5_gg(a, b, c, d, x, 5 , 568446438); d = md5_gg(d, a, b, c, x, 9 , -1019803690); c = md5_gg(c, d, a, b, x, 14, -187363961); b = md5_gg(b, c, d, a, x, 20, 1163531501); a = md5_gg(a, b, c, d, x, 5 , -1444681467); d = md5_gg(d, a, b, c, x, 9 , -51403784); c = md5_gg(c, d, a, b, x, 14, 1735328473); b = md5_gg(b, c, d, a, x, 20, -1926607734); a = md5_hh(a, b, c, d, x, 4 , -378558); d = md5_hh(d, a, b, c, x, 11, -2022574463); c = md5_hh(c, d, a, b, x, 16, 1839030562); b = md5_hh(b, c, d, a, x, 23, -35309556); a = md5_hh(a, b, c, d, x, 4 , -1530992060); d = md5_hh(d, a, b, c, x, 11, 1272893353); c = md5_hh(c, d, a, b, x, 16, -155497632); b = md5_hh(b, c, d, a, x, 23, -1094730640); a = md5_hh(a, b, c, d, x, 4 , 681279174); d = md5_hh(d, a, b, c, x, 11, -358537222); c = md5_hh(c, d, a, b, x, 16, -722521979); b = md5_hh(b, c, d, a, x, 23, 76029189); a = md5_hh(a, b, c, d, x, 4 , -640364487); d = md5_hh(d, a, b, c, x, 11, -421815835); c = md5_hh(c, d, a, b, x, 16, 530742520); b = md5_hh(b, c, d, a, x, 23, -995338651); a = md5_ii(a, b, c, d, x, 6 , -198630844); d = md5_ii(d, a, b, c, x, 10, 1126891415); c = md5_ii(c, d, a, b, x, 15, -1416354905); b = md5_ii(b, c, d, a, x, 21, -57434055); a = md5_ii(a, b, c, d, x, 6 , 1700485571); d = md5_ii(d, a, b, c, x, 10, -1894986606); c = md5_ii(c, d, a, b, x, 15, -1051523); b = md5_ii(b, c, d, a, x, 21, -2054922799); a = md5_ii(a, b, c, d, x, 6 , 1873313359); d = md5_ii(d, a, b, c, x, 10, -30611744); c = md5_ii(c, d, a, b, x, 15, -1560198380); b = md5_ii(b, c, d, a, x, 21, 1309151649); a = md5_ii(a, b, c, d, x, 6 , -145523070); d = md5_ii(d, a, b, c, x, 10, -1120210379); c = md5_ii(c, d, a, b, x, 15, 718787259); b = md5_ii(b, c, d, a, x, 21, -343485551); a = safe_add(a, olda); b = safe_add(b, oldb); c = safe_add(c, oldc); d = safe_add(d, oldd); } return Array(a, b, c, d); } function md5_cmn(q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); } function md5_ff(a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); } function md5_gg(a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); } function md5_hh(a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); } function md5_ii(a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); } function core_hmac_md5(key, data) { var bkey = str2binl(key); if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz); var ipad = Array(16), opad = Array(16); for(var i = 0; i < 16; i++) { ipad = bkey ^ 0x36363636; opad = bkey ^ 0x5C5C5C5C; } var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz); return core_md5(opad.concat(hash), 512 + 128); } function safe_add(x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw & 0xFFFF); } function bit_rol(num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); } function str2binl(str) { var bin = Array(); var mask = (1 << chrsz) - 1; for(var i = 0; i < str.length * chrsz; i += chrsz) bin |= (str.charCodeAt(i / chrsz) & mask) << (i%32); return bin; } function binl2hex(binarray) { var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; var str = ""; for(var i = 0; i < binarray.length * 4; i++) { str += hex_tab.charAt((binarray >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray >> ((i%4)*8 )) & 0xF); } return str; } function binl2b64(binarray) { var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; var str = ""; for(var i = 0; i < binarray.length * 4; i += 3) { var triplet = (((binarray >> 8 * ( i %4)) & 0xFF) << 16) | (((binarray >> 8 * ((i+1)%4)) & 0xFF) << 8 ) | ((binarray >> 8 * ((i+2)%4)) & 0xFF); for(var j = 0; j < 4; j++) { if(i * 8 + j * 6 > binarray.length * 32) str += b64pad; else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); } } return str; } </script> </BODY> </HTML>

Some changes have been made, and now it can generate correct and usable md5+base64 values

[ Last edited by my3439955 on 2007-4-28 at 11:21 AM ]

Hehe! Everyone is still having quite a lively discussion!

Hehe, I will use the search function of this forum more in the future

Originally posted by tbs198400 at 2007-4-22 13:58:
Hehe, I need to use the forum's search function more in the future

There is no denying that this post also has its value

My password after MD5 encryption: the 16-bit MD5 is 1abc93846cb5d329; the 32-bit is d997bd5e1abc93846cb5d3295c18b71a. Then I used base64 conversion: the 16-bit is MWFiYzkzODQ2Y2I1ZDMyOQ==; the 32-bit is ZDk5N2JkNWUxYWJjOTM4NDZjYjVkMzI5NWMxOGI3MWE=. But my real password text is 2Ze9Xhq8k4RstdMpXBi3Gg==. Where did I go wrong? help me

Learning... really posts for learning technology... Thanks to all the predecessors

Originally posted by vsda2008 at 2007-4-23 07:04:
My password, after MD5 encryption, the 16-bit is 1abc93846cb5d329
The 32-bit is d997bd5e1abc93846cb5d3295c18b71a
Then I use base64 conversion The 16-bit is MWFiYzkzODQ ...

Your MD5 has undergone hexadecimal transformation, so that MD5 can be displayed intuitively, but it is not the real MD5. The MD5 of the upper layer may not all be displayable characters

Originally posted by my3439955 at 2007-4-22 11:36 PM:

Your MD5 has been transformed into hexadecimal, which allows the MD5 to be displayed visually, but it is not the actual MD5. The MD5 of the upper layer may not all be displayable characters

After reading your post, I'm very confused
What should I do then

It's that I didn't make it clear. The MD5 you got is not incorrect. It's just that there's an extra step. You got a 32-bit d997bd5e1abc93846cb5d3295c18b71a. This is not the true face of MD5. It's transformed into hexadecimal for people to represent it conveniently. For example, there's a character like (10) which can't be displayed as a character. Then how to represent it? For convenience, the result is represented in hexadecimal form. As long as 0-9 A-F- can represent all. After talking so much, it seems that I didn't explain it very clearly.