What is a certificate?

A certificate (more properly called a public-key certificate in this context) is an electronic document that is signed by a certification authority asserting the binding between identifying information and a public key that can be used to authenticate the entity to which the identifying information applies.

As a minimum, the identifying information includes a domain name, and the browser verifies that the URL displayed in its address bar is in the domain identified by the certificate.

The certification authority’s public key can be used to verify its signature on a certificate. If the certificate is valid and the domain it contains includes the URL displayed in the browser’s address bar, then the browser will display a padlock icon.
  • 0 Users Found This Useful
Was this answer helpful?

Related Articles

The CSR cannot be decoded or is invalid

CSR is possibly missing one or more required fields. The CSR must contain a minimum of the...

What does the Warranty actually mean?

We believe it is important to protect the end user. If we fail to properly validate the...

What is a certification authority?

A certification authority (sometimes referred to as a certificate authority) is a trusted third...

I have accidentally deleted or lost my private key

First check your backups and see if you can re-install the "private key". If you don't know how...

What is a Private Key? What is a Public Key?

Public key cryptography is a form of cryptography which generally allows users to communicate...