CertiGuide to Security+  9  Chapter 4:  Basics of Cryptography (Domain 4.0; 15%)       9  4.5  Key Management and Certificate Lifecycles

4.5.7.1  M of N Control 1 4.5.9  Destruction

Renewal is the process of revalidating a certificate that has neared or passed its expiration date.

There are two variations on certificate renewal, according to VeriSign⁴⁰⁹:

• Use your current public key from your public/private key pair from the existing certificate
  
  
• Create and use a new public key that you provide from a newly created public/private key pair. This is essentially a new certificate. (This is VeriSign’s suggested option).

If a certificate is not renewed before its expiration date, then it is considered to be expired and can no longer be relied upon.

4.5.7.1  M of N Control 1 4.5.9  Destruction