Our Hash code in Javascript.
Hash JavaScript File:
"use strict";
function hashWord(msg) {
// encoding eqn { Tn = (n-2)t1 + 2^n } - please use your own eqn
var hash;
var n;
var t1;
var x;
for (var i = 0; i < msg.length; i++) {
// get unicode of this character as n
n = msg.charCodeAt(i);
t1 = i + 1;
// use recurrence series equation to hash
x = bigInt(n).subtract(2).multiply(t1).add(bigInt(2).pow(n));
if (i === 0) {
hash = x;
continue;
}
// bitwise rotate left with the modulo of x
var binary = bigInt(hash).toString(2);
x = bigInt(x).mod(binary.length);
var slice_1 = binary.slice(x).split('');
// keep as '1' to preserve hash size
slice_1[0] = 1;
slice_1 = slice_1.join('');
var slice_2 = binary.slice(0, x);
hash = String(slice_1) + String(slice_2);
hash = bigInt(hash, 2);
}
hash = bigInt(hash).toString(16);
hash = hash.toUpperCase();
return hash;
}HTML File:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Hashes</title>
<script src="BigInteger.min.js"></script>
<script src="Hashes.js"></script>
</head>
<body>
<h3>One Way Encryption</h3>
<!-- This is where the result will be displayed when it is ready.-->
<div id="word_hash"></div>
<script>
var message = "merry xmas";
var result = hashWord(message);
document.getElementById("word_hash").innerHTML +=
"Message is '" + message + "';<br/><br/>Encrypted version is '" + result + "'.";
</script>
</body>
</html>Try it out!
Elegance (0.0)
