用Javascript实现数据加密解密效果

2024-04-27 14:03:19

字体：大中小

来源：转载

供稿：网友

加密.hta代码(完全可以保存为html，执行效果一样)

程序代码
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>设置加密邮件内容</title>
<script type="text/javascript">
function itArt(){
        this.html="Hello";
        this.CSS="color:#000;width:640px;text-indent:20px;padding:5px;border:solid 5px #666;margin:5px;background:#CCC;margin-left:auto;margin-right:auto";
        this.length=0;
}

itArt.PRototype = {
        init:function(){
                this.length=this.html.length;
        },
        play:function(){
                this.init();
                this.setPassWord();
                this.echo();
        },
        setHtml:function(v){
                this.html=v;
        },
        setPassword:function(){
                var tmp="";
                for(var i=0;i<this.length;i++){
                        tmp+="$"+this.html.charCodeAt(i);
                }
                this.html=tmp;
                tmp="";
                for(var i=0;i<this.html.length;i+=3){
                        tmp+=" "+this.html.substr(i,3);
                }
                this.html=tmp;
                tmp="";
                for(var i=0;i<this.html.length;i++){
                        tmp+=" "+this.html.charCodeAt(i);
                }
                this.html=tmp;
        },
        echo:function(){
                var t=document.createElement("div");
                t.innerHTML=this.html;
                if(window.ActiveXObject)
                        t.style.cssText=this.css;
                else
                        t.setAttribute("style",this.css);
                //不想用DOM删掉子元素了，反正各浏览器都支持
                document.getElementById("x100").innerHTML="";
                document.getElementById("x100").appendChild(t);
        }
}
function setPassword(t){
        if(t!=""){
                var demo=new itArt();
                demo.setHtml(t);
                demo.play();
        }else{
                alert("请输入内容开始加密");
        }
}
window.onload=function(){
        setPassword("你好，猜猜我给你的密文是什么？哈哈，猜不到吧");
}
</script>
</head>
<body>
<textarea style="display:block;color:#000;width:640px;height:280px;text-indent:20px;border:solid 5px #666;margin:5px;background:#FFF;margin-left:auto;margin-right:auto" ondblclick="setPassword(this.value);" title="双击开始加密">你好，猜猜我给你的密文是什么？哈哈，猜不到吧</textarea>
<div id="x100">
</div>
</body>
</html>

解密

程序代码

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>获取加密邮件内容</title>
<script type="text/Javascript">
function itArt(){
        this.html="Hello";
        this.css="color:#000;width:640px;text-indent:20px;padding:5px;border:solid 5px #666;margin:5px;background:#CCC;margin-left:auto;margin-right:auto";
        this.length=0;
}

itArt.prototype = {
        init:function(){
                this.length=this.html.length;
        },
        play:function(){
                this.init();
                this.setPassword();
                this.echo();
        },
        setHtml:function(v){
                this.html=v;
        },
        setPassword:function(){
                var tmp=this.html.split(" "),tmps="";
                for(i=0;i<tmp.length;i++){
                        tmps+=String.fromCharCode(tmp[i]);
                }
                this.html=tmps.replace(" ","");
                tmps="";
                tmp=this.html.split("$");
                for(i=0;i<tmp.length;i++){
                        if(tmp[i]!=""&&tmp[i]!=0){
                                tmps+=String.fromCharCode(tmp[i].replace(" ",""));
                        }
                }
                this.html=tmps;
        },
        echo:function(){
                var t=document.createElement("div");
                t.innerHTML=this.html;
                if(window.ActiveXObject)
                        t.style.cssText=this.css;
                else
                        t.setAttribute("style",this.css);
                //不想用DOM删掉子元素了，反正各浏览器都支持
                document.getElementById("x100").innerHTML="";
                document.getElementById("x100").appendChild(t);
        }
}

demo=new itArt();
demo.setHtml();
function getPassword(t){
        if(t!=""){
        var demo=new itArt();
        demo.setHtml(t);
        demo.play();
        }else{
                alert("请输入内容开始解密");
        }
}
window.onload=function(){
        getPassword("32 36 50 48 32 51 50 48 32 36 50 50 32 57 48 57 32 36 54 53 32 50 57 50 32 36 50 57 32 52 54 56 32 36 50 57 32 52 54 56 32 36 50 53 32 49 48 53 32 36 51 50 32 52 55 51 32 36 50 48 32 51 50 48 32 36 51 48 32 51 52 48 32 36 50 51 32 52 57 52 32 36 50 53 32 57 57 49 32 36 50 54 32 49 53 57 32 36 50 48 32 49 54 48 32 36 50 48 32 48 52 48 32 36 54 53 32 51 49 49 32 36 51 50 32 36 50 49 32 55 48 52 32 36 50 49 32 55 48 52 32 36 54 53 32 50 57 50 32 36 50 57 32 52 54 56 32 36 49 57 32 57 56 49 32 36 50 49 32 48 52 48 32 36 50 49 32 53 52 51");
}
</script>
</head>
<body>
<textarea style="display:block;color:#000;width:640px;height:280px;text-indent:20px;border:solid 5px #666;margin:5px;background:#FFF;margin-left:auto;margin-right:auto" ondblclick="getPassword(this.value);" title="双击开始解密">32 36 50 48 32 51 50 48 32 36 50 50 32 57 48 57 32 36 54 53 32 50 57 50 32 36 50 57 32 52 54 56 32 36 50 57 32 52 54 56 32 36 50 53 32 49 48 53 32 36 51 50 32 52 55 51 32 36 50 48 32 51 50 48 32 36 51 48 32 51 52 48 32 36 50 51 32 52 57 52 32 36 50 53 32 57 57 49 32 36 50 54 32 49 53 57 32 36 50 48 32 49 54 48 32 36 50 48 32 48 52 48 32 36 54 53 32 51 49 49 32 36 51 50 32 36 50 49 32 55 48 52 32 36 50 49 32 55 48 52 32 36 54 53 32 50 57 50 32 36 50 57 32 52 54 56 32 36 49 57 32 57 56 49 32 36 50 49 32 48 52 48 32 36 50 49 32 53 52 51</textarea>
<div id="x100">
</div>
</body>
</html>