Recently one of our website visitor emailed us saying that they were getting some error on a website which said ‘Security Certificate Expired‘ and were worried if their computer was attached with a virus or else if the website had some issues. This had happened actually with two different websites ie one with a Online banking website and another shopping portal. If there is a fix for this kind of problem it would have been a great solution.
Before we start working on the issue of expired certificate, you need to understand what is a security certificate. Basically this is a key which is used to decrypt encrypted messages by an authenticated message receiver. These certificates are normally found on the websites which require users to send or receive important and confidential information like passwords, credit card details, banking information etc, hence most of these data is encrypted and the same is acknowledged in the form of a certificate.
The errors would show different kind of messages for different web browsers like in the Microsoft Internet Explorer you would see a message saying there is a problem with this website security certificate, in Firefox you would get a error message saying Secure Connection failed and in the Google Chrome browser you will get a message saying that the server’s security certificate is not yet valid.
One quick solution for this would be to change the date on your computer. This means that all these secure websites are given security certificates for a time period and when this expires you get a error message on your screen. Hence changing your computer’s date would make the certificate still valid and make your browsing experience with no errors.
Another way to fix these errors is by modifying some of the settings in your web browser to by pass these errors. In the Internet Explorer browser you need to click on Tools > Internet Options > Advanced > Uncheck on ‘Check for publisher’s certificate revocation’ option. Thats it from now on Internet Explorer Browser wont be checking for the certificate whenever you access any of these kind of websites.
For Firefox Browser you need to Go to Tools > Options > Advanced > Encryption Tab > Validation. Here uncheck the option which says ‘Use the Online Certificate Status Protocol (OCSP) to confirm the current validity of certificates. This would disable the browser for checking these certificates and display you the errors.