ImportantQuestions/ceaserchipher.html at main · SuperDev991/ImportantQuestions · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1 style="text-align: center;">Caesar Cipher Converter</h1>
<div class="container" >
    <input type="text" id="query" style="display: block; width: 100%; height: 10%; position: absolute;
    left: 50%;
      top: 30%;
      -webkit-transform: translate(-50%, -50%);
      transform: translate(-50%, -50%);
      width: 60%;
      font-size: large;
      margin: auto;">
    <button type="submit" onclick="encrypted()" style="width: 5%; height: 5%; display: block; position: absolute;
left: 50%;
top: 50%;
">Convert</button>
<p id="result" style= "font-size: 20px; position: absolute;
left: 50%;
top: 60%;
background-color: yellow;"></p>
</div>

      <script>

          function encrypted(){

              var msg= document.getElementById("query").value;
              var val= 50;
            //   console.log(val);
              var res= encrypt(msg, val);
                document.getElementById("result").innerHTML= res;
              console.log(res);
          }
        function encrypt(msg, key)
    {
        // console.log(msg+key);
        var encMsg = "";

        for(var i = 0; i < msg.length; i++)
        {
            var code = msg.charCodeAt(i);

            // Encrypt only letters in 'A' ... 'Z' interval
            if (code >= 65 && code <= 65 + 26 - 1)
            {
                code -= 65;
                code = mod(code + key, 26);
                code += 65;
            }

            encMsg += String.fromCharCode(code);
        }
        // console.log(encMsg);
        return encMsg;
    }

-
    // Modulo function: n mod p
    function mod(n, p)
    {
        if ( n < 0 )
            n = p - Math.abs(n) % p;
        return n % p;
    }
    </script>
</body>
</html>