<keygen> - HTML CSS HTML Tag

HTML CSS examples for HTML Tag:keygen

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Introduction

The keygen element generates a public/private pair of keys.

When the form is submitted, a new pair of keys is created.

The public key is sent to the server, and the private key is retained by the browser and added to the user's key store.

The keygen Element summary

Element: keygen
Local Attributes:challenge, keytype, autofocus, name, disabled, form
Contents:None
Tag Style: Void
New in HTML5?Yes
Changes in HTML5:N/A
Style Convention:None

The name, disabled, form, and autofocus attributes work as they do for the input element.

The keytype attribute sets the algorithm to generate the key pair, but the only supported value is RSA.

Demo Code

ResultView the demo in separate window 

<!DOCTYPE html>
<html lang="en">
 <head>
  <title>Example of HTML keygen Tag</title>
 </head><!--  w w w . ja va 2  s .  c  o  m-->
 <body>
  <form action="../html5/demo_keygen.php" method="post">
   <label>Username: <input type="text" name="username"></label>
   <label>Encryption: <keygen name="key"></label>
   <input type="submit" value="Submit">
  </form>
  <p><strong>Note:</strong> The keygen tag is not supported in Internet Explorer.</p>
 </body>
</html>

Tag-Specific Attributes

The following table shows the attributes that are specific to the <keygen> tag.

Attribute Value Description
autofocus autofocus This Boolean attribute specifies that a keygen element should automatically get focus when the page loads.
challenge challenge Specifies a challenge string that is submitted along with the public key. The default value is an empty string, if not specified.
disabled disabled This Boolean attribute indicates that the keygen form control disabled for interaction.
form form-id Specifies the <form> element that the <keygen> element is associated with (its form owner).
keytype rsadsaec Specifies the type of key generated. The default value is 'rsa'.
name name Defines a name for the keygen element, which is submitted with the form data.

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