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livesmart
V2EX  ›  Python

用 python 写模拟登陆，一段 javascript 加密代码，我用 python 重写了一遍，但是运行结果不对。。求指点。。。

  •   
  •   livesmart · Apr 26, 2016 · 6375 views
    This topic created in 3845 days ago, the information mentioned may be changed or developed.

    这段代码关键部分就是 function ee(){} 我输入密码，然后经过加密，通过 post 方式请求返回服务器。我用 python 写个模拟登陆，但是这段加密搞不定，照着写出来的代码，运行结果不对。。 正确的值如下： upass: E1f0813d4cea349c75b135043842608b123456781

    ~~~~~~~~~~~~~javascript 代码~~~~~~~~~~~~~~~~~~~~~~~~

    <html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script language="JavaScript"><!--
sv=0;sv1=0;v6='http://[::]:9002/v6                                     ';myv6ip='                                       ';v4serip='10.100.10.104'  ;m46=0;v46ip='172.19.213.68'                          ;
ps=1;pid='1';calg='12345678';
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 rol(num,cnt){return(num<<cnt)|(num>>>(32-cnt));}
function cmn(q,a,b,x,s,t){return safe_add(rol(safe_add(safe_add(a,q),safe_add(x,t)),s),b);}
function ff(a,b,c,d,x,s,t){return cmn((b&c)|((~b)&d),a,b,x,s,t);}
function gg(a,b,c,d,x,s,t){return cmn((b&d)|(c&(~d)),a,b,x,s,t);}
function hh(a,b,c,d,x,s,t){return cmn(b^c^d,a,b,x,s,t);}
function ii(a,b,c,d,x,s,t){return cmn(c^(b|(~d)),a,b,x,s,t);}
function coreMD5(x){
var a=1732584193
var b=-271733879
var c=-1732584194
var d=271733878
for(i=0; i < x.length; i+=16){
var olda=a
var oldb=b
var oldc=c
var oldd=d
a=ff(a,b,c,d,x[i+0],7,-680876936)
d=ff(d,a,b,c,x[i+1],12,-389564586)
c=ff(c,d,a,b,x[i+2],17,606105819)
b=ff(b,c,d,a,x[i+3],22,-1044525330)
a=ff(a,b,c,d,x[i+4],7,-176418897)
d=ff(d,a,b,c,x[i+5],12,1200080426)
c=ff(c,d,a,b,x[i+6],17,-1473231341)
b=ff(b,c,d,a,x[i+7],22,-45705983)
a=ff(a,b,c,d,x[i+8],7,1770035416)
d=ff(d,a,b,c,x[i+9],12,-1958414417)
c=ff(c,d,a,b,x[i+10],17,-42063)
b=ff(b,c,d,a,x[i+11],22,-1990404162)
a=ff(a,b,c,d,x[i+12],7,1804603682)
d=ff(d,a,b,c,x[i+13],12,-40341101)
c=ff(c,d,a,b,x[i+14],17,-1502002290)
b=ff(b,c,d,a,x[i+15],22,1236535329)
a=gg(a,b,c,d,x[i+1],5,-165796510)
d=gg(d,a,b,c,x[i+6],9,-1069501632)
c=gg(c,d,a,b,x[i+11],14,643717713)
b=gg(b,c,d,a,x[i+0],20,-373897302)
a=gg(a,b,c,d,x[i+5],5,-701558691)
d=gg(d,a,b,c,x[i+10],9,38016083)
c=gg(c,d,a,b,x[i+15],14,-660478335)
b=gg(b,c,d,a,x[i+4],20,-405537848)
a=gg(a,b,c,d,x[i+9],5,568446438)
d=gg(d,a,b,c,x[i+14],9,-1019803690)
c=gg(c,d,a,b,x[i+3],14,-187363961)
b=gg(b,c,d,a,x[i+8],20,1163531501)
a=gg(a,b,c,d,x[i+13],5,-1444681467)
d=gg(d,a,b,c,x[i+2],9,-51403784)
c=gg(c,d,a,b,x[i+7],14,1735328473)
b=gg(b,c,d,a,x[i+12],20,-1926607734)
a=hh(a,b,c,d,x[i+5],4,-378558)
d=hh(d,a,b,c,x[i+8],11,-2022574463)
c=hh(c,d,a,b,x[i+11],16,1839030562)
b=hh(b,c,d,a,x[i+14],23,-35309556)
a=hh(a,b,c,d,x[i+1],4,-1530992060)
d=hh(d,a,b,c,x[i+4],11,1272893353)
c=hh(c,d,a,b,x[i+7],16,-155497632)
b=hh(b,c,d,a,x[i+10],23,-1094730640)
a=hh(a,b,c,d,x[i+13],4,681279174)
d=hh(d,a,b,c,x[i+0],11,-358537222)
c=hh(c,d,a,b,x[i+3],16,-722521979)
b=hh(b,c,d,a,x[i+6],23,76029189)
a=hh(a,b,c,d,x[i+9],4,-640364487)
d=hh(d,a,b,c,x[i+12],11,-421815835)
c=hh(c,d,a,b,x[i+15],16,530742520)
b=hh(b,c,d,a,x[i+2],23,-995338651)
a=ii(a,b,c,d,x[i+0],6,-198630844)
d=ii(d,a,b,c,x[i+7],10,1126891415)
c=ii(c,d,a,b,x[i+14],15,-1416354905)
b=ii(b,c,d,a,x[i+5],21,-57434055)
a=ii(a,b,c,d,x[i+12],6,1700485571)
d=ii(d,a,b,c,x[i+3],10,-1894986606)
c=ii(c,d,a,b,x[i+10],15,-1051523)
b=ii(b,c,d,a,x[i+1],21,-2054922799)
a=ii(a,b,c,d,x[i+8],6,1873313359)
d=ii(d,a,b,c,x[i+15],10,-30611744)
c=ii(c,d,a,b,x[i+6],15,-1560198380)
b=ii(b,c,d,a,x[i+13],21,1309151649)
a=ii(a,b,c,d,x[i+4],6,-145523070)
d=ii(d,a,b,c,x[i+11],10,-1120210379)
c=ii(c,d,a,b,x[i+2],15,718787259)
b=ii(b,c,d,a,x[i+9],21,-343485551)
a=safe_add(a,olda)
b=safe_add(b,oldb)
c=safe_add(c,oldc)
d=safe_add(d,oldd);}
return [a,b,c,d];}

function binl2hex(binarray){
var hex_tab="0123456789abcdef"
var str=""
for(var i=0; i < binarray.length * 4; i++){
str+=hex_tab.charAt((binarray[i>>2] >>((i%4)*8+4))&0xF)+
hex_tab.charAt((binarray[i>>2] >>((i%4)*8))&0xF)
}
return str;}

function binl2b64(binarray){
var tab="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
var str=""
for(var i=0; i < binarray.length * 32; i+=6){
str+=tab.charAt(((binarray[i>>5] <<(i%32))&0x3F)|((binarray[i>>5+1] >>(32-i%32))&0x3F))
}
return str;}

function str2binl(str){
var nblk=((str.length+8)>>6)+1 // number of 16-word blocks
var blks=new Array(nblk * 16)
for(var i=0; i < nblk * 16; i++) blks[i]=0
for(var i=0; i < str.length; i++)
blks[i>>2]|=(str.charCodeAt(i)&0xFF) <<((i%4) * 8)
blks[i>>2]|=0x80 <<((i%4) * 8)
blks[nblk*16-2]=str.length * 8
return blks;}

function strw2binl(str){
var nblk=((str.length+4)>>5)+1 // number of 16-word blocks
var blks=new Array(nblk * 16)
for(var i=0; i < nblk * 16; i++) blks[i]=0
for(var i=0; i < str.length; i++)
blks[i>>1]|=str.charCodeAt(i) <<((i%2) * 16)
blks[i>>1]|=0x80 <<((i%2) * 16)
blks[nblk*16-2]=str.length * 16
return blks;}

function hexMD5(str){return binl2hex(coreMD5( str2binl(str)))}
function hexMD5w(str){return binl2hex(coreMD5(strw2binl(str)))}
function b64MD5(str){return binl2b64(coreMD5( str2binl(str)))}
function b64MD5w(str){return binl2b64(coreMD5(strw2binl(str)))}
function calcMD5(str){return binl2hex(coreMD5( str2binl(str)))}

function xproc1(str){
var EChars="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var out,i,len,c1,c2,c3;
len=str.length;
i=0;
out = "";
while(i<len){
c1=str.charCodeAt(i++)&0xff;
if(i==len){out+=EChars.charAt(c1>>2);
out+=EChars.charAt((c1&0x3)<<4);
out+= "==";
break;}
c2=str.charCodeAt(i++);
if(i==len){out+=EChars.charAt(c1>>2);
out+=EChars.charAt(((c1&0x3)<<4)|((c2&0xF0)>>4));
out+=EChars.charAt((c2&0xF)<<2);
out+="=";
break;}
c3=str.charCodeAt(i++);
out+=EChars.charAt(c1>>2);
out+=EChars.charAt(((c1&0x3)<<4)|((c2&0xF0)>>4));
out+=EChars.charAt(((c2&0xF)<<2)|((c3&0xC0)>>6));
out+=EChars.charAt(c3&0x3F);}
return out;}

function cc(ss){f0.R1.value=ss;}
function ee(){
if(f1.DDDDD.value==""){alert("??ê?è??úμ???o? Please enter your account account number");return false;}
f0.DDDDD.value=f1.DDDDD.value
if(ps==0){f0.upass.value=xproc1(f1.upass.value);}
else{tmpchar=pid+f1.upass.value+calg;f0.upass.value=calcMD5(tmpchar)+calg+pid;f0.R2.value=1;}
document.f0.submit();
return false;}

    //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~` 我用 python 写的加密代码

    
def safe_add(x,y):
    lsw=(x & 0xFFFF)+(y & 0xFFFF)
    msw=(x >> 16)+(y >> 16)+(lsw >> 16)
    return(msw << 16)|(lsw & 0xFFFF)

def rol(num,cnt):
    tmp = num << 2
    tmp1 = abs(num) >> (32 - cnt)
    return (tmp | tmp1)

def cmn(q,a,b,x,s,t):
    return safe_add(rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b)

def ff(a,b,c,d,x,s,t):
    return cmn((b & c)|((~b) & d),a,b,x,s,t)

def gg(a,b,c,d,x,s,t):
    return cmn((b & d)|(c & (~d)),a,b,x,s,t)

def hh(a,b,c,d,x,s,t):
    return cmn(b ^ c ^ d, a, b, x, s, t)

def ii(a,b,c,d,x,s,t):
    return cmn(c^(b|(~d)),a,b,x,s,t)

def coreMD5(x):
    a=1732584193
    b=-271733879
    c=-1732584194
    d=271733878
    for i in range(0,len(x),16):
        olda=a
        oldb=b
        oldc=c
        oldd=d
        a = ff(a, b, c, d, x[i + 0], 7, -680876936)
        d = ff(d, a, b, c, x[i + 1], 12, -389564586)
        c = ff(c, d, a, b, x[i + 2], 17, 606105819)
        b = ff(b, c, d, a, x[i + 3], 22, -1044525330)
        a = ff(a, b, c, d, x[i + 4], 7, -176418897)
        d = ff(d, a, b, c, x[i + 5], 12, 1200080426)
        c = ff(c, d, a, b, x[i + 6], 17, -1473231341)
        b = ff(b, c, d, a, x[i + 7], 22, -45705983)
        a = ff(a, b, c, d, x[i + 8], 7, 1770035416)
        d = ff(d, a, b, c, x[i + 9], 12, -1958414417)
        c = ff(c, d, a, b, x[i + 10], 17, -42063)
        b = ff(b, c, d, a, x[i + 11], 22, -1990404162)
        a = ff(a, b, c, d, x[i + 12], 7, 1804603682)
        d = ff(d, a, b, c, x[i + 13], 12, -40341101)
        c = ff(c, d, a, b, x[i + 14], 17, -1502002290)
        b = ff(b, c, d, a, x[i + 15], 22, 1236535329)
        a = gg(a, b, c, d, x[i + 1], 5, -165796510)
        d = gg(d, a, b, c, x[i + 6], 9, -1069501632)
        c = gg(c, d, a, b, x[i + 11], 14, 643717713)
        b = gg(b, c, d, a, x[i + 0], 20, -373897302)
        a = gg(a, b, c, d, x[i + 5], 5, -701558691)
        d = gg(d, a, b, c, x[i + 10], 9, 38016083)
        c = gg(c, d, a, b, x[i + 15], 14, -660478335)
        b = gg(b, c, d, a, x[i + 4], 20, -405537848)
        a = gg(a, b, c, d, x[i + 9], 5, 568446438)
        d = gg(d, a, b, c, x[i + 14], 9, -1019803690)
        c = gg(c, d, a, b, x[i + 3], 14, -187363961)
        b = gg(b, c, d, a, x[i + 8], 20, 1163531501)
        a = gg(a, b, c, d, x[i + 13], 5, -1444681467)
        d = gg(d, a, b, c, x[i + 2], 9, -51403784)
        c = gg(c, d, a, b, x[i + 7], 14, 1735328473)
        b = gg(b, c, d, a, x[i + 12], 20, -1926607734)
        a = hh(a, b, c, d, x[i + 5], 4, -378558)
        d = hh(d, a, b, c, x[i + 8], 11, -2022574463)
        c = hh(c, d, a, b, x[i + 11], 16, 1839030562)
        b = hh(b, c, d, a, x[i + 14], 23, -35309556)
        a = hh(a, b, c, d, x[i + 1], 4, -1530992060)
        d = hh(d, a, b, c, x[i + 4], 11, 1272893353)
        c = hh(c, d, a, b, x[i + 7], 16, -155497632)
        b = hh(b, c, d, a, x[i + 10], 23, -1094730640)
        a = hh(a, b, c, d, x[i + 13], 4, 681279174)
        d = hh(d, a, b, c, x[i + 0], 11, -358537222)
        c = hh(c, d, a, b, x[i + 3], 16, -722521979)
        b = hh(b, c, d, a, x[i + 6], 23, 76029189)
        a = hh(a, b, c, d, x[i + 9], 4, -640364487)
        d = hh(d, a, b, c, x[i + 12], 11, -421815835)
        c = hh(c, d, a, b, x[i + 15], 16, 530742520)
        b = hh(b, c, d, a, x[i + 2], 23, -995338651)
        a = ii(a, b, c, d, x[i + 0], 6, -198630844)
        d = ii(d, a, b, c, x[i + 7], 10, 1126891415)
        c = ii(c, d, a, b, x[i + 14], 15, -1416354905)
        b = ii(b, c, d, a, x[i + 5], 21, -57434055)
        a = ii(a, b, c, d, x[i + 12], 6, 1700485571)
        d = ii(d, a, b, c, x[i + 3], 10, -1894986606)
        c = ii(c, d, a, b, x[i + 10], 15, -1051523)
        b = ii(b, c, d, a, x[i + 1], 21, -2054922799)
        a = ii(a, b, c, d, x[i + 8], 6, 1873313359)
        d = ii(d, a, b, c, x[i + 15], 10, -30611744)
        c = ii(c, d, a, b, x[i + 6], 15, -1560198380)
        b = ii(b, c, d, a, x[i + 13], 21, 1309151649)
        a = ii(a, b, c, d, x[i + 4], 6, -145523070)
        d = ii(d, a, b, c, x[i + 11], 10, -1120210379)
        c = ii(c, d, a, b, x[i + 2], 15, 718787259)
        b = ii(b, c, d, a, x[i + 9], 21, -343485551)
        a = safe_add(a, olda)
        b = safe_add(b, oldb)
        c = safe_add(c, oldc)
        d = safe_add(d, oldd)
    return [a,b,c,d]

def str2binl(str):
    nblk=((len(str)+8) >> 6)+1
    blks=[0 for i in range(0,nblk*16)]

    for i in range(0,len(str)):
        blks[i>>2] = blks[i>>2] | ((int(str[i])& 0xFF) <<((i%4) * 8))
        blks[i>>2] = blks[i>>2] | (0x80 <<((i%4) * 8))
        blks[(nblk*16 - 2)] = len(str) * 8
    return blks


def binl2hex(binarray):
    hex_tab="0123456789abcdef"
    str=""
    for i in range(len(binarray)*4):
        str= str + hex_tab[(binarray[i>>2] >>((i%4)*8+4))&0xF]+hex_tab[(binarray[i>>2] >>((i%4)*8))&0xF]
    return str

def calcMD5(str):
    return binl2hex(coreMD5( str2binl(str)))


str = '12345678'
pid = '1'
calg = '12345678'


def main():
    tmpchar = pid + str +calg
    tmpchar2 = calcMD5(tmpchar)
    passd = tmpchar2 +calg +pid
    print passd


if __name__ == "__main__":
    main()
  • str
  • return
  • var
  • function
    18 replies  •  2016-04-27 09:19:55 +08:00
    m939594960
    m939594960
    Apr 26, 2016
    1
    用 pyv8
    直接用 js 算结果啊
    livesmart
    livesmart
    OP
    Apr 26, 2016
    2
    @m939594960
    谢谢，我去试试。。但是你能不能告诉我，我哪里错了。。。。
    fish267
    fish267
    Apr 26, 2016❤️1
    3
    I prefer go die.
    m939594960
    m939594960
    Apr 26, 2016❤️1
    4
    @livesmart 太多了 我也没仔（ KAN ）细（ BU ）看（ DONG ） 不过对效率等等要求不是很高的话 直接运行这个 js 取结果就好了 应该是最好的办法 。中间那么长一段 其实就是个 md5 加密， python 直接用库生成就好了

    如果非得要用 python 去实现这个加密的过程 推荐吧 js 放到 chrome 中运行一下 然后下断点 看下每一步的数值
    然后 python 也进行一步一步的 查看一下数值 问题出现在哪就很好看出来了
    mV2GK
    mV2GK
    Apr 26, 2016❤️1
    5
    每一步都加个 print 对比下输出不就知道了。。。
    j0kER
    j0kER
    Apr 26, 2016
    6
    @m939594960 pyv8 怎么安装啊。。 pip 安装不起来
    mdzz
    mdzz
    Apr 26, 2016❤️6
    8
    你 TM 在逗我

    >>> import hashlib
    >>> ANS = 'E1f0813d4cea349c75b135043842608b123456781'
    >>>
    >>> str = '12345678'
    >>> pid = '1'
    >>> calg = '12345678'
    >>>
    >>> tmpchar = pid + str + calg
    >>> tmpchar2 = hashlib.md5(tmpchar).hexdigest()
    >>> passd = tmpchar2 + calg + pid
    >>> passd.capitalize() == ANS
    True
    >>>
    livesmart
    livesmart
    OP
    Apr 26, 2016
    9
    @mdzz 万分感谢，，，，
    leyle
    leyle
    Apr 26, 2016
    10
    @mdzz ID 配合回复内容，好有喜感。
    qqmishi
    qqmishi
    Apr 26, 2016
    11
    怎么感觉和我们学校教务网加密方式一样啊 23333

    当初我也是耐心的看了一遍源码，最后放弃直接用 python 的 md5 库了 23333
    fy
    fy
    Apr 26, 2016
    12
    @mdzz 蛤蛤蛤蛤
    est
    est
    Apr 26, 2016
    13
    爬的网站还不够多，没看出来这是 md5 库。。。
    lxy
    lxy
    Apr 26, 2016
    14
    看到那个 calcMD5 还不明白么……
    blotd
    blotd
    Apr 26, 2016❤️1
    15
    ```javascript
    // JS Hashlib Lib ： https://github.com/LuoZijun/hashlib.js
    // 把 hashlib.js 引入你的 html 。
    // <script type="text/javascript" src="hashlib.js"></script>

    var target = 'E1f0813d4cea349c75b135043842608b123456781';

    var str = '12345678';
    var pid = '1';
    var calg = '12345678';

    var tmpchar = pid + str + calg;
    var hash = new hashlib.md5(tmpchar).hexdigest();
    var array = (hash + calg + pid).split('');
    array.splice(0, 1, array[0].toUpperCase() );
    var result = array.join('');
    console.log( 'Target: ' + result + ' Result: ' + result );
    console.log( target == result );

    ```
    zmj1316
    zmj1316
    Apr 26, 2016
    16
    带 js 的除非像这种特别明显的我都是偷懒直接上 pyV8
    guokeke
    guokeke
    Apr 27, 2016 via Android
    17
    →_→，感觉这是某校园网的登录啊，你一定是要干坏事!
    wwxiong
    wwxiong
    Apr 27, 2016❤️1
    18
    python 的位运算机制和 js 是不一样的。特别针对高位有符号左移位。你可以借助 python ctypes 模块来处理。
    python
    >>> -1231313132112 << 2
    -4925252528448
    js
    -1231313132112 << 2
    1074960064
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