O script Javascript implementa criptografia estática de páginas da web

Autor：Eve Cole Data da Última Atualização：2009-06-08 18:34:42

Dois dias atrás, vi alguém perguntando sobre criptografia estática de páginas da web, então escrevi esta

ideia de código:

Ao criptografar: primeiro criptografe a chave do usuário A com md5 para B e, em seguida, use B para XOR o arquivo de origem S0 para obter o arquivo de destino S1 e salve S1 em variáveis js.

Ao descriptografar : peça a chave e opere da mesma forma que a criptografia.

Como o MD5 é usado, eu pessoalmente acho que ele não pode ser quebrado sem uma chave (exceto para violência)

Vamos experimentar haha:

O código fonte é o seguinte:

<html> <head> <title>Web Encoder</title> <style> body { font-size:12px; line-height:12px; 0px; preenchimento:4px } #t1, #t2 { largura:100%; largura da borda:1px; } entrada { largura da borda:1px; preenchimento-esquerda:10px; preenchimento-direita:4px; } </style> <script> function webEncode(){ strSource=escape(XOR(t1.value,STR. md5(p1.value))); //strSource=t1.value; strSource.length;i+=70){ strOut+="strHTML+=""+addSlash(strSource.substring(i,i+70))+"";rn"; "+addSlash(strSource.substring(i,strSource.length))+"";rn"; strOut+=XOR+"rn" //abaixo do código carrega o objeto STR strOut+="var STR = rn{rnthexcase : 0, /* formato de saída hexadecimal 0 - minúsculas; 1 - "; strOut+="maiúsculas */rntb64pad : "", / * caractere de preenchimento base 64 "=" para "; strOut+="conformidade estrita com RFC */rntchrsz : 8, /* bits por caractere de entrada"; strOut+=" 8 - ASCII; 16 - Unicode */rntrntb64_hmac_md5:rnttfunction(chave, "; strOut+="dados) { return binl2b64(core_hmac_md5(chave, dados) }); ,rnttrntb64_md5:rn"; strOut+="ttfunction(s){ return binl2b64(core_md5(str2binl(s), s.length * this.c "; strOut+="hrsz));},rnttrntbinl2b64:rnttfunction(binarray){rntt var tab = "ABCDE"; strOut+="FGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";rntt var"; strOut+=" str = "";rntt for(var i = 0; i < binarray.length * 4; i += 3)rntt {"; strOut+="rntt var tripleto = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) "; strOut+="<< 16)rntt (((binarray[i+1 >> 2] >> 8 * ((i+1) %4)) & "; strOut+="0xFF) << 8 )rntt ((binarray[i+2 >> 2] >> 8 * ((i+2)%"; strOut+ ="4)) & 0xFF);rntt for(var j = 0; j < 4; j++)rntt {rntt if(i "; strOut+="* 8 + j * 6 > binarray.length * 32) str += this.b64pad;rntt else "; strOut+="str += tab.charAt((tripleto >> 6*(3-j)) & 0x3F);rntt }rntt }rnttr"; strOut+="eturn str;rn tt},rnttrntbinl2hex:rnttfunction(binarray){rntt var hex_t"; strOut+="ab = this.hexcase ? 0; i < binarray.length * 4; > ((i%4)*8+4)) & 0xF) +rntt"; strOut+=" hex_tab.charAt((binarray[i>>2] >> ((i%4) *8 )) & 0xF);rntt "; strOut+=" }rntt return str;rntt},rnt rntbinl2str:rnttfunction(bin){rntt var st"; strOut+="r = "";rntt máscara var = (1 << this.chrsz) - 1;rntt for(var i = 0; i <"; strOut+=" bin.length * 32; i += this.chrsz)r ntt str += String.fromCharCode(("; strOut+="bin[i>>5] >>> (i % 32)) & máscara);rntt return str; rntt},rnttrntbit_rol:"; strOut+="rnttfunction(num, cnt){return (num << cnt) | (num >>> (32 - cnt));},rn"; strOut+="ttrntcore_hmac_md5:rnttfunction(chave, dados){ rntt var bkey = str2binl(k"; strOut+="ey);rntt if(bkey.length > 16) bkey = core_md5(bkey, key.length * this"; strOut+=".chrsz);rnttrntt var ipad = Array(16), opad = Array(16);rntt for(var" ; strOut+=" i = 0; i < 16; i++)rntt {rntt ipad[i] = bkey[i] ^ 0x36363636;rnt t"; strOut+=" opad[i] = bkey[i] ^ 0x5C5C5C5C;rntt }rnttrntt var hash = core_md"; strOut+ ="5(ipad.concat(str2binl(dados)), 512 + data.length * this.chrsz);rnttr"; strOut+="eturn core_md5(opad.concat(hash), 512 + 128);rntt},rnttrntcore_md5:rnt"; strOut+="tfunction(x, len){r ntt /* acrescenta preenchimento */rnttx[len >> 5] |= 0x80 "; strOut+="<< ((len) % 32);rn ttx[(((len + 64) >>> 9) << 4) + 14] = len;rnttrntt"; strOut+=" var a = 1732584193;rntt var b = -271733879;rntt var c = -17325841"; strOut+="94;rntt var d = 271733878; rnttrntt for(var i = 0; i < x.comprimento; i +"; strOut+="= 16)rntt {r ntt var olda = a;rntt var oldb = b;rntt var oldc"; strOut+=" = c;rntt var oldd = d;rnttrntta = this.md5_ff(a, b, c, d, x[i+"; strOut+=" 0], 7 , -680876936); rnttd = this.md5_ff(d, a, b, c, x[i+ 1], 12, "; strOut+="-389564586);rnttc = this.md5_ff (c, d, a, b, x[i+ 2], 17, 60610581"; strOut+="9);rnttb = this.md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);rntt "; strOut+=" a = this.md5_ff(a, b, c, d, x[i+ 4], 7, -176418897);r nttd = th"; strOut+="is.md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);rnttc = this.md5_f"; strOut+="f(c, d, a, b, x[i+ 6], 17, -1473231341);rnttb = this.md5_ff(b, c, "; strOut+="d, a , x[i+ 7], 22, -45705983);rntta = this.md5_ff(a, b, c, d, x[i+"; strOut+=" 8], 7, 1770035416); rnttd = this.md5_ff(d, a, b, c, x[i+ 9], 12,"; strOut+=" -1958414417);rnttc = this.md5_ff (c, d, a, b, x[i+10], 17, -42063)"; strOut+=";rnttb = this.md5_ff(b, c, d, a, x[ i+11], 22, -1990404162);rntt "; strOut+=" a = this.md5_ff(a, b, c, d, x[i+12], 7, 1804603682); rnttd = thi"; strOut+="s.md5_ff(d, a, b, c, x[i+13], 12, -40341101);rnttc = isto .md5_ff(c"; strOut+=", d, a, b, x[i+14], 17, -1502002290);rnttb = this.md5_ff(b, c, d, "; strOut+="a, x[i+15], 22, 1236535329);rnttrntta = this.md5_gg(a, b, c, d, x"; strOut+ ="[i+ 1], 5, -165796510);rnttd = this.md5_gg(d, a, b, c, x[i+ 6], 9"; strOut+=" , -1069501632) ;rnttc = isto.md5_gg(c, d, a, b, x[i+11], 14, 6437"; strOut+="17713);rnttb = isto .md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);rn"; strOut+="tta = this.md5_gg(a, b, c, d, x [i+ 5], 5, -701558691);rnttd ="; strOut+=" this.md5_gg(d, a, b, c, x[i+10], 9, 38016083); rnttc = this.md5_"; strOut+="gg(c, d, a, b, x[i+15], 14, -660478335);rnttb = this. md5_gg(b, c, "; strOut+="d, a, x[i+ 4], 20, -405537848);rntta = this.md5_gg(a, b, c, d, x[ i"; strOut+="+ 9], 5, 568446438);rnttd = this.md5_gg(d, a, b, c, x[i+14], 9,"; strOut+=" -1019803690);rnttc = this.md5_gg(c, d, a, b, x[i+ 3], 14, -187363"; strOut+="961);rnt tb = this.md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);rnt"; strOut+="ta = this.md5_gg(a, b, c, d , x[i+13], 5 , -1444681467);rnttd ="; strOut+=" this.md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784 );rnttc = isto.md5_"; strOut+="gg(c, d, a, b, x[i+ 7], 14, 1735328473);rnttb = isto .md5_gg(b, c,"; strOut+=" d, a, x[i+12], 20, -1926607734);rnttrntta = this.md5_hh( a, b, c, "; strOut+="d, x[i+ 5], 4, -378558);rnttd = this.md5_hh(d, a, b, c, x[i+ 8 ], "; strOut+="11, -2022574463);rnttc = this.md5_hh(c, d, a, b, x[i+11], 16, 183"; strOut+="9030562 );rnttb = this.md5_hh(b, c, d, a, x[i+14], 23, -35309556);r"; strOut+="ntta = this.md5_hh(a, b, c, d, x[i+ 1], 4, -1530992060);rnttd"; strOut+=" = this.md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);rnttc = isto."; strOut+="md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); rnttb = this.md5_hh(b,"; strOut+=" c, d, a, x[i+10], 23, -1094730640);rntta = this.md5_hh (a, b, c, d"; strOut+=", x[i+13], 4, 681279174);rnttd = this.md5_hh(d, a, b, c, x[i+ 0]"; strOut+=", 11, -358537222);rnttc = this.md5_hh(c, d, a, b, x[i+ 3], 16, -72"; strOut+=" 2521979);rnttb = this.md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);r"; strOut+="ntta = this .md5_hh(a, b, c, d, x[i+ 9], 4, -640364487);rnttd "; strOut+="= this.md5_hh(d, a, b, c, x [i+12], 11, -421815835);rnttc = this.md"; strOut+="5_hh(c, d, a, b, x[i+15], 16, 530742520) ;rnttb = this.md5_hh(b, c"; strOut+=", d, a, x[i+ 2], 23, -995338651);rnttr ntta = this.md5_ii(a, b, c, "; strOut+="d, x[i+ 0], 6 , -198630844);rnttd = this.md5_ii(d, a, b, c, x[i+ 7"; strOut+="], 10, 1126891415);rnttc = this.md5_ii(c, d, a, b, x[i+14], 15, -"; strOut+="1416354905);rnttb = this.md5_ii(b, c, d, a, x[i+ 5], 21, -57434055"; strOut+="); rntta = this.md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);rntt "; strOut+=" d = this.md5_ii (d, a, b, c, x[i+ 3], 10, -1894986606);rnttc = th"; strOut+="is.md5_ii(c, d, a, b, x[ i+10], 15, -1051523);rnttb = this.md5_ii(b"; strOut+=", c, d, a, x[i+ 1], 21, -2054922799); rntta = this.md5_ii(a, b, c, "; strOut+="d, x[i+ 8], 6 , 1873313359);rnttd = this.md5_ii(d , a, b, c, x[i+1"; strOut+="5], 10, -30611744);rnttc = this.md5_ii(c, d, a, b, x[i+ 6], 15, -1"; strOut+="560198380);rnttb = this.md5_ii(b, c, d, a, x[i+13], 21, 130915164"; strOut+= "9);rntta = this.md5_ii(a, b, c, d, x[i+ 4], 6, -145523070);rntt "; d = this.md5_ii(d, a, b, c, x[i+11], 10, -1120210379);rnttc = th"; strOut+="is.md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);rnttb = this.md5_ii"; strOut+="(b, c, d, a, x[i+ 9], 21, - 343485551);rnttrntta = this.safe_add(a,"; strOut+=" olda);rnttb = this.safe_add(b, oldb );rnttc = this.safe_add(c,"; strOut+=" oldc);rnttd = this.safe_add(d, oldd);rnt t }rntt return Array(a,"; strOut+=" b, c, d);rntt},rnttrn thex_hmac_md5:function(chave, dados){ return this.b"; strOut+="inl2hex(this.core_hmac_md5(chave, dados) },rntrnthex_md5:function(s){ re"; strOut+="turn this.binl2hex(this.core_md5(this.str2binl(s), s.length * this.chr"; strOut+="sz));},rntrn tmd5:function(s){return(this.hex_md5(s));},rnrntmd5_cmn:fu"; strOut+="nction(q, a, b, x, s, t ){return this.safe_add(this.bit_rol(this.safe_a"; strOut+="dd(this.safe_add(a, q), this.safe_add(x, t)), s),b);},r nrntmd5_ff:func"; strOut+="tion(a, b, c, d, x, s, t){retornar isto.md5_cmn((b & c) | ((~b) & d ), a,"; strOut+=" b, x, s, t);},rnrntmd5_gg:function(a, b, c, d, x, s, t){retornar isso .m"; strOut+="d5_cmn((b & d) | (c & (~d)), a, b, x, s, t);},rnrntmd5_hh:function( a, "; strOut+="b, c, d, x, s, t){retornar isto.md5_cmn(b ^ c ^ d, a, b, x, s, t);},rnr n"; strOut+="tmd5_ii:function(a, b, c, d, x, s, t){return this.md5_cmn(c ^ (b | (~d"; strOut+=")), a, b, x, s, t);},rnrntmd5_vm_test:function(){return hex_md5("abc")"; strOut+=" == "900150983cd24fb0d6963f7d28e17f72";}, rntrntsafe_add:rnttfunction(x"; strOut+=", y){rntt var lsw = (x & 0xFFFF) + ( y & 0xFFFF);rntt var msw = (x >>"; strOut+=" 16) + (y >> 16) + (lsw >> 16);rntt retornar (msw << 16) | (lsw & 0xFFF"; strOut+="F);rntt},rnttrntstr2binl:rn ttfunction(str){rntt var bin = Array();rnt"; strOut+="t var máscara = (1 << this.chrsz) - 1; rntt for(var i = 0; i < str.lengt"; strOut+="h * this.chrsz; i += this.chrsz)rntt bin[i>> 5] |= (str.charCodeAt(i"; strOut+=" / this.chrsz) & máscara) << (i%32);rntt return bin;rnt t},rnrntstr_hmac_"; strOut+="md5:function(chave, dados){ return binl2str(core_hmac_md5(chave, dados) },"; strOut+="rn); rntstr_md5:function(s){ return binl2str(core_md5(str2binl(s), s.leng"; strOut+="th * this.chrsz));}rn}rn"; strOut+ =performPage+"rn"; strOut+="performPage();rn"; strOut+="</script>"; :blank"); win.document.write(t2.value); win.document.close(); } function addSlash(str){ return(str).replace(/\/g,"\\" ).replace(///g,"\/").replace(/r/g,"\r").replace(/n/g,"\n").replace( /"/g,"\"").replace(/'/g,"\'").replace(/t/g,"\t"); ,strPass){ var intPassLength=strPass.length; var re=""; for(var i=0;i<strV.length;i++){ re+=String.fromCharCode(strV.charCodeAt(i)^strPass.charCodeAt( i%intPassLength)); } return(re } função performPage(strPass){ if(strPass){ document.cookie="password="+escape(strPass); .md5(strPass))); return(false } //************Se você precisar lembrar a senha automaticamente, altere o seguinte comentário para o código /* var pass=document); .cookie.match(/password=([^;]+)/i); if(pass){ pass=unescape(pass[1]); ))) ; return(false); */ //*********** strAskPass="<table cellpacing=0 cellpadding=0 width=100% height=100% align=center valign=middle > <tr><td> </td><td align=center>"; strAskPass+="<b>Senha:</b><input style="border-width:1px;" type=password id =ps01 onkeydown="if(event.keyCode==13){performPage(this.value);}">"; strAskPass+="<input style="border-width:1px;" type=button onclick ="performPage(ps01.value);" value=Enter></td><td> </td></tr></table>"; document.write(strAskPass); } var STR = { hexcase : 0, /* formato de saída hexadecimal. 0 - minúsculas 1 - maiúsculas */ b64pad : "", /* caractere de bloco base 64 "=" para conformidade estrita com RFC */ chrsz : 8, /* bits. por caractere de entrada. 8 - ASCII; )) , s.length * this.chrsz));}, binl2b64: function(binarray){ var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; ; i += 3) { var tripleto = (((matriz binária[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) | >> 8 * ((i+1)%4)) & 0xFF) << 8 ) ((matriz binária[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF) ; for (var j = 0; j < 4; j++) { if(i * 8 + j * 6 > binarray.length * 32) str += this.b64pad; 6* (3-j)) & 0x3F); return str }, binl2hex: function(binarray){ var hex_tab = this.hexcase ? i = 0; i < binarray.comprimento * 4; charAt( (binarray[i>>2] >> ((i%4)*8 )) & 0xF } return str }, binl2str: function(bin){ var str = ""; << this.chrsz) - 1; for(var i = 0; i < bin.length * 32; i += this.chrsz) str += String.fromCharCode((bin[i>>5] >>> ( i % 32)) & máscara return str }, bit_rol: function(num, cnt){return (num << cnt) | (num >>> (32 - cnt));}, core_hmac_md5: function(key , dados){ var bkey = str2binl(chave); if(bkey.length > 16) bkey = core_md5(bkey, key.length * this.chrsz); for( var i = 0; i < 16; i++) { ipad[i] = bkey[i] ^ 0x36363636; data) ), 512 + data.length * this.chrsz); return core_md5(opad.concat(hash), 512 + 128 }, core_md5: function(x, len){ /* anexar preenchimento */ x[len); >> 5] |= 0x80 << ((len) % 32); 271733879; d; a = isto.md5_ff(a, b, c, d, x[i+ 0], 7, d = isto.md5_ff(d, a, b, c, x[i+ 1], 12); -389564586); , - 1044525330); a = isto.md5_ff(a, b, c, d, x[i+ 4], 7, -176418897); , 12, 1200080426); c = isto.md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); ], 22, -45705983); a = isto.md5_ff(a, b, c, d, x[i+ 8], 7, 1770035416); 9] , 12, -1958414417); c = isto.md5_ff(c, d, a, b, x[i+10], 17, -42063); x[i+11], 22, -1990404162); a = isto.md5_ff(a, b, c, d, x[i+12], 7, 1804603682); , c , x[i+13], 12, -40341101); c = isto.md5_ff(c, d, a, b, x[i+14], 17, -1502002290); , c , d, a, x[i+15], 22, 1236535329); (d , a, b, c, x[i+ 6], 9, -1069501632); .md5_gg (b, c, d, a, x[i+ 0], 20, -373897302); = isto .md5_gg(d, a, b, c, x[i+10], 9, c = isto.md5_gg(c, d, a, b, x[i+15], 14, -660478335); ); b = isto.md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); 568446438) ; d = isto.md5_gg(d, a, b, c, x[i+14], 9, -1019803690); 14, -187363961); ], 5, -1444681467); d = isto.md5_gg(d, a, b, c, x[i+ 2], 9, -51403784); i+ 7 ], 14, 1735328473); b = isto.md5_gg(b, c, d, a, x[i+12], 20, -1926607734); x[i+ 5], 4, -378558); b, x[i+11], 16, 1839030562); b = isto.md5_hh(b, c, d, a, x[i+14], 23, -35309556); , c , d, x[i+ 1], 4, -1530992060); d, a, b, x[i+ 7], 16, -155497632); (a, b, c, d, x[i+13], 4, 681279174 = isto.md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); .md5_hh (c, d, a, b, x[i+ 3], 16, -722521979); isto.md5_hh(a, b, c, d, x[i+ 9], 4, -640364487); ; c = isto.md5_hh(c, d, a, b, x[i+15], 16, 530742520); 995338651) ; a = isto.md5_ii(a, b, c, d, x[i+ 0], 6, -198630844); , 1126891415 ); c = isto.md5_ii(c, d, a, b, x[i+14], 15, -1416354905); , 21 , -57434055); a = isto.md5_ii(a, b, c, d, x[i+12], 6, 1700485571); 3] , 10, -1894986606); c = isto.md5_ii(c, d, a, b, x[i+10], 15, -1051523); x[i+ 1], 21, -2054922799); a = isto.md5_ii(a, b, c, d, x[i+ 8], 6, 1873313359); , x [i+15], 10, -30611744); c = isto.md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); d, a, x[i+13], 21, 1309151649); a = isto.md5_ii(a, b, c, d, x[i+ 4], 6, -145523070); a, b, c, x[i+11], 10, -1120210379); b, c, d, a, x[i+ 9], 21, -343485551); a = this.safe_add(a, olda); oldc) ;d = this.safe_add(d, oldd } return Array(a, b, c, d }, hex_hmac_md5:function(key, data){ return this.binl2hex(this.core_hmac_md5(chave, dados) )) ; }, hex_md5:function(s){return this.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){return this.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){return this.md5_cmn((b & d) | (c & ( ~d)), a, b, x, s, t);}, md5_hh:função(a, b, c, d, x, s, t){retornar isto.md5_cmn(b ^ c ^ d, a, b, x, s, t);}, md5_ii:function(a, b, c, d, x, s, t){retornar isto.md5_cmn(c ^ (b | (~d)), a, b, x, s, t);}, md5_vm_test:function(){return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72";}, safe_add: function(x, y){ var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); str) { var bin = Array(); var máscara = (1 << this.chrsz) - 1 for(var i = 0; i < str.length * this.chrsz; i += this.chrsz) bin[ i> >5] |= (str.charCodeAt(i / this.chrsz) & máscara) << (i%32); dados) ); }, str_md5:função(s){ return binl2str(core_md5(str2binl(s), s.length * this.chrsz));} } </script> </head> <body> <b>Fonte :</b><br> <textarea id=t1></textarea><br> <b>Senha:</b><input type=password value=default id=p1><input type=button onclick=" webEncode( );" value="Iniciar codificação"><br> <b>Codificado:</b><br> <textarea id=t2></textarea><br> <input type=button onclick="runCode( ); " value="Run Code"> </body> </html>

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