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In today’s Internet world, the image of a green pad lock in the browser is unanimously thought to be a synonym of trust. This green pad lock is being used to represent active and valid SSL certificates, indicating the trustworthiness in terms of security and proper authentication of your website. Protecting your website is crucial for your organization’s reputation and gaining customers’ trust.
SSL (Secure Socket Layer) provides end-to-end security between the client and server, by establishing a secure channel with the help of encryption. SSL exchanges the cryptographic information on behalf of the client and server and forms a trust relationship between them to ensure the information exchanged is private and secure.
Why do certificates expire?
Now, let’s assume the ownership of the end entity changes from owner A to owner B, however, the certificate issued to the end entity is still valid. What if the new owner B misuses the certificate or domain in the name of owner A, as the certificate still contains the information proprietary to owner A. Thus, it’s important for Certificate Authorities that are issuing trusted certificates to ensure that the information they’re using to authenticate domains and organizations is as up-to-date and accurate as possible, hence it is mandatory to associate an expiry date with the certificate.