Using JS to encrypt form forms base64

JS can be used to encrypt the foreground data to prevent malicious access, the following code, with Base64 data encryption, can be decrypted in the background.

Introduction of JS

<script type= "Text/javascript" src= "jquery.min.js" ></script><script type= "Text/javascript" src= " Jquery.base64.js "></script>

　　

The data in the HTML

Name:<inputtype= "text"ID= "Name"  ><BR/>Password:<inputtype= "Password"ID= "Password" ><BR/><Buttononclick= "SubmitData ()">Submit</Button>

JS Processing

<script>functionSubmitData () {varobj =NewObject (); Obj.name= $ (' #name '). Val (); Obj.password= $ (' #password '). Val (); //converted to JSON after encryptionvarstr =$.base64.encode (json.stringify (obj)); $.post ("Your URL address", {data:str},function(data) {Console.log (data);    }); }    //extended base64, support ChineseJquery.base64 = (function($) {        //Private Property        varKeystr = "Abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789+/="; //Private method for UTF-8 encoding        functionUtf8encode (String) {string= String.Replace (/\r\n/g, "\ n"); varUtftext = "";  for(varn = 0; n < string.length; n++) {                varc =string.charcodeat (n); if(C < 128) {Utftext+=String.fromCharCode (c); }                Else if((C > 127) && (C < 2048) ) {Utftext+ = String.fromCharCode ((c >> 6) | 192); Utftext+ = String.fromCharCode ((C & 63) | 128); }                Else{Utftext+ = String.fromCharCode ((c >> 12) | 224); Utftext+ = String.fromCharCode (((c >> 6) & 63) | 128); Utftext+ = String.fromCharCode ((C & 63) | 128); }            }            returnUtftext; }        functionencode (input) {varOutput = ""; varchr1, CHR2, CHR3, Enc1, Enc2, enc3, Enc4; vari = 0; Input=Utf8encode (input);  while(I <input.length) {chr1= Input.charcodeat (i++); CHR2= Input.charcodeat (i++); CHR3= Input.charcodeat (i++); Enc1= Chr1 >> 2; ENC2= ((Chr1 & 3) << 4) | (CHR2 >> 4); Enc3= ((CHR2 &) << 2) | (CHR3 >> 6); Enc4= CHR3 & 63; if(IsNaN (CHR2)) {enc3= ENC4 = 64; } Else if(IsNaN (CHR3)) {Enc4= 64; } Output= output +Keystr.charat (ENC1)+ Keystr.charat (ENC2) +Keystr.charat (enc3)+Keystr.charat (ENC4); }            returnoutput; }        return{encode:function(str) {returnencode (str);    }        };    } (JQuery)); </script>

Using JS to encrypt form forms base64