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HTML | keygen Tag

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  • Difficulty Level : Basic
  • Last Updated : 30 May, 2022
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The <keygen> tag in HTML is used to specify a key-pair generator field in a form. The purpose of <keygen> element is to provide a secure way to authenticate users. When a from is submitted then two keys are generated, private key and public key. The private key stored locally, and the public key is sent to the server. The public key is used to generate client certificate to authenticate user for future. 

Note: <keygen> tag is not supported in html5

Syntax:

<keygen name = "name">

Example: 

html




<!DOCTYPE html>
<html>
    <head>
        <title>
            HTML keygen tag
        </title>
    </head>
     
    <body>
        <h1 style = "color:green;">
            GeeksforGeeks
        </h1>
         
        <h2>Keygen Tag</h2>
         
        <form>
            Username: <input type="text" name="uname">
            <br><br>
            Encryption: <keygen name="secure">
            <input type="submit">
        </form>
    </body>
</html>                   

Output:

 key1 

Supported Browsers: The browser supported by <keygen> tag are listed below:

  • Google Chrome
  • Firefox
  • Safari
  • Opera
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