HTML DOM window crypto property

The Window.crypto property returns the crypto object associated with the global object. This is a read-only property. This object allows web pages to access certain cryptographic related services. This crypto object offers some methods to access, exp getRandomValues() method.

Syntax:

var cryp = window.crypto or window.msCrypto;

Value: This property returns an instance of the crypto object.

Example: This example uses the crypto property with its getRandomValues() method to generate a random array of size 5.

html

<!DOCTYPE HTML> 
<html>  
<head>
    <title>window crypto property</title>
</head>   
<body style="text-align:center;">
    <h1 style="color:green;">  
        GeeksForGeeks  
    </h1> 
    <p> 
    HTML | Window.crypto property
    </p>
    <button onclick = "Geeks();">
    click here
    </button>
    <p id="arr"> 
    </p>       
    <script> 
        var arr = document.getElementById("arr");
        function Geeks() {
            var array = new Uint16Array(5);
            console.log(window.crypto);
            a = window.crypto.getRandomValues(array);
            console.log(a);
            arr.innerHTML = "The random array is: "+a;
        } 
    </script> 
</body>   
</html>

Output:

Before Clicking Button:

After Clicking Button:

Also, the crypto object in the console is:

Supported Browsers:

Google Chrome 37
Edge 12
Firefox 1
Safari 5
Opera 24

HTML DOM window crypto property

Explore