<keygen>

The <keygen> element represents a key pair generator control.

Point

• When the control's form is submitted, the private key is stored in the local keystore, and the public key is packaged and sent to the server.

HTML Attributes

• autofocus = boolean
  Allows the author to indicate that a control is to be focused as soon as the page is loaded

• challenge = string
  A challenge string that is submitted along with the public key. [Example A]

• disabled = boolean
  If present, make the control non-interactive and to prevent its value from being submitted.

• form = the ID of a form element in the element's owner
  Associate the keygen element with its form owner.
  By default, the keygen element is associated with its nearest ancestor form element.

• keytype = rsa
  The type of key generated.

• name = unique name
  Represents the element's name.

See also global attributes.

Example

Example A

[try it]:

<keygen name="key" challenge="235ldahlae983dadfar">

HTML Reference

The HTML5 specification defines the <textarea> element in 4.10.13 The textarea element.