JS实现PHP base64encode加密

JS实现PHP base64encode的JS加密,PHP使用base64decode的解密即可

JS加密 JS实现base64encode加密

function base64encode(str){

var out,i,len,base64EncodeChars=”ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/”;
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;
}