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Apoorv Joshi

What Is Certificate Authority Authorization & How To Use It

CAA is a security measure or in simpler language, it is a standard that is designed to basically protect websites and help in preventing unauthorized SSL certificate. Certificate Authorities (CAs) is the powerful entity whose job is to make sure that every single SSL certificate is authorized by using different methods of domain validation. It is normally done by linking the particular SSL certificate with particular website using a particular domain. But the CA should be listed as an authorized issuer of certificate.

As CAA specify which CAs are genuine and are allowed to issue certificate for a domain, it helps in preventing or minimizing chances of hacking or misusing SSL certificate.

Benefits of CAA

  • It helps in preventing illegal or unauthorized issuance of comodo SSL certificate

  • Organization are also helped by limiting CAs they use.

  • The site owners are also benefited as they can now specify which Certificate Authorities (CAs) have the authority to issue SSL certificate to their domain name.

  • All the CAs have to check for the authenticity before issuing SSL certificate.

Need for CAA

As benefits of Certificate Authority Authorization (CAA) are clear, next thing that hits our minds is “Do I need CAA?”. The answer is very clear…YES, we very much need CAA. As we know CAA records are used to check the authenticity of CAs i.e. which CA is authorized to issue SSL certificate as well as it provides immense amount of security from hackers. It also gives rights to the domain owner to exclude particular CA. CA can’t issue any Comodo SSL certificate without authentication. In other words, we can say that CAA can bring down the risk of issuing the SSL certificates by unauthorized Certificate Authorities (CAs).

For any domain, CA can issue certificate and with increase in HTTPS, there is an increase in SSL certificates. To put a control over this, a powerful approach was required. CAA is designed to stop unauthorized issuance of SSL certificates.

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