静态网页加密

前两天看见有人问静态网页加密问题，就写了这个代码

思路：

加密时：

先把用户的密钥A用md5加密为B,然后用B异或源文件S0得到目标文件S1,把S1存入js变量中。

解密时

var tab=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz09+/;

var str = ;

for(var i = 0; i < binarray.length * 4; i += 3)

var triplet = (((binarray[i >>2] >>8 * ( i%4))& 0xFF) << 16)

(((binarray[i+1 >>2] >>8 * ((i+1)%4)) &0xFF)<< 8 )

((binarray[i+2 >>2] >>8 * ((i+2)%4))&0xFF);

for(var j = 0; j < 4; j++)

else str += tab.charAt((triplet >>6*(3-j)) &0x3F);

return str;,binl2hex:function(binarray)

var hex_tab = this.hexcase ? 09ABCDEF :09abcdef;

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;,binl2str:function(bin)

var str = ;

var mask = (1 << this.chrsz) - 1;

for(var i = 0; i < bin.length * 32; i += this.chrsz)

str += String.fromCharCode((bin[i>>5] >>>(i %32))& mask);

return str;,bit_rol:function(num, cnt)return (num <>>(32 -cnt));,core_hmac_md5:function(key,data)

var bkey = str2binl(key);

var ipad = Array(16), opad = Array(16);

for(var i = 0; i < 16; i++)

ipad[i] = bkey[i] ^ 0x36363636;

opad[i] = bkey[i] ^ 0x5C5C5C5C;

var hash = core_md5(ipad.concat(str2binl(data)), 512 +data.length* this.chrsz);

return core_md5(opad.concat(hash), 512+128);,core_md5:function(x, len)

/* append padding */

x[len >>5] = 0x80 << ((len) % 32);

x[(((len + 64) >>>9) << 4) + 14] = 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 = this.md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);

d = this.md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);

c = this.md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);

b = this.md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);

a = this.md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);

d = this.md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);

c = this.md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);

b = this.md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);

a = this.md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);

d = this.md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);

c = this.md5_ff(c, d, a, b, x[i+10], 17, -42063);

b = this.md5_ff(b, c, d, a, x[i+11], 22, -1990404162);

a = this.md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);

d = this.md5_ff(d, a, b, c, x[i+13], 12, -40341101);

c = this.md5_ff(c, d, a, b, x[i+14], 17, -1502002290);

b = this.md5_ff(b, c, d, a, x[i+15], 22, 1236535329);

a = this.md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);

d = this.md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);

c = this.md5_gg(c, d, a, b, x[i+11], 14, 643717713);

b = this.md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);

a = this.md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);

d = this.md5_gg(d, a, b, c, x[i+10], 9 , 38016083);

c = this.md5_gg(c, d, a, b, x[i+15], 14, -660478335);

b = this.md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);

a = this.md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);

d = this.md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);

c = this.md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);

b = this.md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);

a = this.md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);

d = this.md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);

c = this.md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);

b = this.md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

a = this.md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);

d = this.md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);

c = this.md5_hh(c, d, a, b, x[i+11], 16, 1839030562);

b = this.md5_hh(b, c, d, a, x[i+14], 23, -35309556);

a = this.md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);

d = this.md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);

c = this.md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);

b = this.md5_hh(b, c, d, a, x[i+10], 23, -1094730640);

a = this.md5_hh(a, b, c, d, x[i+13], 4 , 681279174);

d = this.md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);

c = this.md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);

b = this.md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);

a = this.md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);

d = this.md5_hh(d, a, b, c, x[i+12], 11, -421815835);

c = this.md5_hh(c, d, a, b, x[i+15], 16, 530742520);

b = this.md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

a = this.md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);

d = this.md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);

c = this.md5_ii(c, d, a, b, x[i+14], 15, -1416354905);

b = this.md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);

a = this.md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);

d = this.md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);

c = this.md5_ii(c, d, a, b, x[i+10], 15, -1051523);

b = this.md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);

a = this.md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);

d = this.md5_ii(d, a, b, c, x[i+15], 10, -30611744);

c = this.md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);

b = this.md5_ii(b, c, d, a, x[i+13], 21, 1309151649);

a = this.md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);

d = this.md5_ii(d, a, b, c, x[i+11], 10, -1120210379);

c = this.md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);

b = this.md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

a = this.safe_add(a, olda);

b = this.safe_add(b, oldb);

c = this.safe_add(c, oldc);

d = this.safe_add(d, oldd);

return Array(a, b, c, d);,hex_hmac_md5:function(key, data)returnthis.binl2hex(this.core_hmac_md5(key,data));,hex_md5:function(s)returnthis.binl2hex(this.core_md5(this.str2binl(s),s.length*this.chrsz));,md5:function(s)return(this.hex_md5(s));,md5_cmn:function(q,a,b, x, s,t)returnthis.safe_add(this.bit_rol(this.safe_add(this.safe_add(a,q),this.safe_add(x, t)), s),b);,md5_ff:function(a, b, c, d, x,s,t)return this.md5_cmn((b & c) ((~b) & d), a, b, x,s,t);,md5_gg:function(a, b, c, d, x, s, t)returnthis.md5_cmn((b& d) (c & (~d)), a, b, x, s,t);,md5_hh:function(a, b, c,d, x, s, t)return this.md5_cmn(b ^ c ^d, a, b, x, s,t);,md5_ii:function(a, b, c, d, x, s, t)returnthis.md5_cmn(c ^ (b(~d)), a, b, x, s,t);,md5_vm_test:function()returnhex_md5(abc)900150983cd24fb0d6963f7d28e17f72;,safe_add:function(x,y)

var lsw = (x & 0xFFFF) + (y & 0xFFFF);

var msw = (x >>16) + (y >>16) + (lsw>>16);

return (msw << 16) (lsw&0xFFFF);,str2binl:function(str)

var bin = Array();

var mask = (1 << this.chrsz) - 1;

for(var i = 0; i < str.length * this.chrsz; i+=this.chrsz)

bin[i>>5] = (str.charCodeAt(i / this.chrsz) &mask)<< (i%32);

return bin;,str_hmac_md5:function(key, data)returnbinl2str(core_hmac_md5(key, data)); ,str_md5:function(s)returnbinl2str(core_md5(str2binl(s), s.length*this.chrsz));</Script>Source:

Password:

Encoded:

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