{"id":145722,"date":"2021-05-19T10:06:21","date_gmt":"2021-05-19T04:36:21","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=145722"},"modified":"2021-05-19T14:28:42","modified_gmt":"2021-05-19T08:58:42","slug":"crl-certificate","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/crl-certificate\/","title":{"rendered":"CRL Certificate | Implications, Information and Why is a Certificate Revocation List Important?"},"content":{"rendered":"<p><strong>CRL Certificate:<\/strong> In the field of cryptography, a CRL certificate (abbreviation for certificate revocation list) is a list of digital certificates that have been revoked by issuing a CA before the scheduled date of expiry and hence, it should not be trusted.<\/p>\n<p>Students can find more about\u00a0<a href=\"https:\/\/cbselibrary.com\/certificate\/\" target=\"_blank\" rel=\"noopener\">certificates<\/a>, explore the types used for academic purposes, professional purposes and more.<\/p>\n<h2>What is a CRL Certificate?<\/h2>\n<p>CRL is the abbreviation for Certificate Revocation List. Its definition, as per the National Institute of Standards and Technology (NIST) is as follows: \u201cCRL is a list of revoked public-key certificates created and digitally signed by a Certification Authority (CA)\u201d.<\/p>\n<p>However, the Internet Engineering Task Force\u2019 RFC 5280 profile defines CRL as: \u201cA time-stamped and signed data structure that a certificate authority (CA) or CRL issuer periodically issues to communicate the revocation status of affected digital certificates.\u201d<\/p>\n<h3>Why do you need a CRL?<\/h3>\n<p>As the name implies, a CRL distinguishes untrusted certificates from trusted ones. Moreover, the certification revocation lists are offered on an hourly, daily or weekly basis as per the needs of the provider.<\/p>\n<h3>CRL Implications<\/h3>\n<p>When the CA revokes a certificate in a particular website, the visitors of the website are shown a warning before they can access the content. The warning is as follows:<\/p>\n<p>\u201cYour connection is not private\u201d attackers might be trying to steal your information from (website url)&#8230;\u201d<\/p>\n<p>If you are a business, then the above message is disconcerting as it can drive away visitors and potential customers from your website.<\/p>\n<h3>CRL &#8211; Why Does CA Revoke a Certificate on Your Website?<\/h3>\n<p>There are many reasons why this can happen:<\/p>\n<ul>\n<li>The Certificate Authority is compromised<\/li>\n<li>Either someone has compromised your certificate\u2019s private key<\/li>\n<li>The Certificate Authority is-issued a certificate and issued a new one to replace it<\/li>\n<li>A certificate was fraudulently signed with a stolen key<\/li>\n<\/ul>\n<h3>Why is a Certificate Revocation List Important?<\/h3>\n<p>Digital certificates are valid for a period of 2 years, but some will have 398 days or less if issued on or after 1st September 2020. However, not all certificates will survive their entire validity &#8211; some may be revoked early &#8211; and this is when they become a part of the Certificate Revocation List. For a client, this can be a problem if they are not aware of which particular certificate is revoked. Hence to make certificate revocations much easier to track, Certificate Authorities will add them to the Certificate Revocation List.<\/p>\n<h3>Information Included on a CRL<\/h3>\n<p>A certificate revocation list can include the following information:<\/p>\n<ul>\n<li>Serial number of the certificate<\/li>\n<li>Signature algorithm of the certificate<\/li>\n<li>CN &#8211; common name<\/li>\n<li>Extensions of the certificate<\/li>\n<li>Date and time of revocation<\/li>\n<li>CRL issuer\u2019s name<\/li>\n<li>Date by which the next CRL will generate.<\/li>\n<\/ul>\n<h3>FAQ&#8217;s on CRL Certificate<\/h3>\n<p><strong>Question 1.<\/strong><br \/>\nWhat is a CRL Certificate?<\/p>\n<p><strong>Answer:<\/strong><br \/>\nIn the field of cryptography, a CRL certificate (abbreviation for certificate revocation list) is a list of digital certificates that have been revoked by issuing a CA before the scheduled date of expiry.<\/p>\n<p><strong>Question 2.<\/strong><br \/>\nWhy do you need a CRL?<\/p>\n<p><strong>Answer:<\/strong><br \/>\nCertificate revocations become much easier to track when Certificate Authorities add them to the Certificate Revocation List.<\/p>\n<p><strong>Question 3.<\/strong><br \/>\nWhat are the various kinds of information included on a CRL?<\/p>\n<p><strong>Answer:<\/strong><br \/>\nA certificate revocation list can include the following information: serial number of the certificate, signature algorithm of the certificate, cn &#8211; common name, extensions of the certificate, date and time of revocation, crl issuer\u2019s name, the date by which the next crl will generate.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CRL Certificate: In the field of cryptography, a CRL certificate (abbreviation for certificate revocation list) is a list of digital certificates that have been revoked by issuing a CA before the scheduled date of expiry and hence, it should not be trusted. Students can find more about\u00a0certificates, explore the types used for academic purposes, professional &#8230; <a title=\"CRL Certificate | Implications, Information and Why is a Certificate Revocation List Important?\" class=\"read-more\" href=\"https:\/\/cbselibrary.com\/crl-certificate\/\" aria-label=\"More on CRL Certificate | Implications, Information and Why is a Certificate Revocation List Important?\">Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":145730,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[92677],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.8 (Yoast SEO v18.4.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CRL Certificate | Implications, Information and Why is a Certificate Revocation List Important? - CBSE Library<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cbselibrary.com\/crl-certificate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CRL Certificate | Implications, Information and Why is a Certificate Revocation List Important?\" \/>\n<meta property=\"og:description\" content=\"CRL Certificate: In the field of cryptography, a CRL certificate (abbreviation for certificate revocation list) is a list of digital certificates that have been revoked by issuing a CA before the scheduled date of expiry and hence, it should not be trusted. 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