{"id":5252,"date":"2018-12-28T00:51:01","date_gmt":"2018-12-28T08:51:01","guid":{"rendered":"https:\/\/cheapsslsecurity.com\/blog\/?p=5252"},"modified":"2021-01-26T07:31:19","modified_gmt":"2021-01-26T15:31:19","slug":"comodo-rsa-certification-authority","status":"publish","type":"post","link":"https:\/\/cheapsslsecurity.com\/blog\/comodo-rsa-certification-authority\/","title":{"rendered":"Comodo RSA Certification Authority Explained by SSLsecurity"},"content":{"rendered":"

A quick explanation of Root CA certificates – Comodo RSA domain validation secure server CA<\/h2>\n

In this article, we\u2019ll explain what a Comodo RSA Certification Authority<\/strong> is and why it\u2019s the most respected authority for signing SSL certificates.<\/p>\n

Comodo RSA Certification Authority<\/h2>\n

Comodo RSA<\/strong> Certification Authority refers to the Comodo CA\u2019s root. Essentially, this is the root from which all other SSL certificates are signed and they are consequently chained to it. Comodo RSA is currently the world\u2019s most trustworthy certification authority with over 100 million websites secured. You can explore more about Comodo CA through our exclusive blog post “Comodo SSL Review \u2013 Why It\u2019s a Top-Notch Certificate Authority<\/a>.”<\/p>\n

Comodo RSA: Glossary of Terms<\/h2>\n

It\u2019s possible that you\u2019re confused about some of the terms we\u2019ve used in the explanation above. For the non-initiated, the following is a comprehensive glossary of SSL-related terms.<\/p>\n

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Root Certificate<\/h2>\n

The Root Certificate, or the issuing SSL certificate, is generally preinstalled into a web browser\u2019s trust store. As such, the user\u2019s browser needs to climb up the chain of trust and it needs to be linked to the trusted root. Only then can the SSL certificate be trusted. The SSL certificate can be chained directly to the root. However, it usually links through a series of intermediate certificates so the issuing root is not compromised. Read our previous blog post for Comodo Root Signing Certificate and Comodo Intermediate Certificate<\/a>.<\/p>\n

Certificate Chain<\/h2>\n

As mentioned above, the SSL certificate links through a series of intermediate chains \u2014 not directly \u2014 to the root certificate. If the SSL certificate doesn\u2019t link back to a root, the browser will not accept it. The chain that is formed to link back to the root is called a Certificate Chain.<\/p>\n

Intermediate Certificate<\/h2>\n

It is technically possible for an SSL certificate to link directly to the root certificate. However, trusted roots like Comodo RSA Certification Authority are extremely valuable. As such, certificate authorities don\u2019t issue directly from them so that they are not exposed and there\u2019s no chance of them being compromised. To protect the root, CAs issue the certificate through intermediate certificates.<\/p>\n

Intermediate certificates can be used for two purposes:<\/h2>\n