Shortening the Let's Encrypt Chain of Trust - Let's Encrypt
When Let’s Encrypt first launched, we needed to ensure that our certificates were widely trusted. To that end, we arranged to have our intermediate certificates cross-signed by IdenTrust’s DST Root CA X3. This meant that all certificates issued by those intermediates would be trusted, even while our own ISRG Root X1 wasn’t yet. During subsequent years, our Root X1 became widely trusted on its own.
1751984 - Let's Encrypt: TLS Using ALPN TLS Version and OID
This update provides additional information about this incident but does not yet constitute a full incident report. An initial timeline of actions taken to investigate and resolve this incident follows. All times are UTC. Tuesday Jan 25, 2022 16:48 Bug report sent to ISRG engineering 17:41 TLS-ALPN-01 challenge type disabled in Staging 17:57 Fix to require TLS1.2+ landed in Boulder 18:10 Fix to di
Let's Encrypt's root certificate has expired, and it might break your devices | TechCrunch
Let’s Encrypt’s root certificate has expired, and it might break your devices One of the largest providers of HTTPS certificates, Let’s Encrypt, saw its root certificate expire this week — meaning you might need to upgrade your devices to prevent them from breaking. Let’s Encrypt, a free-to-use nonprofit, issues certificates that encrypt the connections between your devices and the wider internet,
Let's Encrypt's Root Certificate is expiring!
Scott Helme Security researcher, entrepreneur and international speaker who specialises in web technologies. More posts by Scott Helme. On 30th September 2021, the root certificate that Let's Encrypt are currently using, the IdentTrust DST Root CA X3 certificate, will expire. You may or may not need to do anything about this Root CA expiring, but I'm betting a few things will probably break on tha
The Next Gen Database Servers Powering Let's Encrypt - Let's Encrypt
Let’s Encrypt helps to protect a huge portion of the Web by providing TLS certificates to more than 235 million websites. A database is at the heart of how Let’s Encrypt manages certificate issuance. If this database isn’t performing well enough, it can cause API errors and timeouts for our subscribers. Database performance is the single most critical factor in our ability to scale while meeting s
Let's Encrypt's New Root and Intermediate Certificates - Let's Encrypt
On Thursday, September 3rd, 2020, Let’s Encrypt issued six new certificates: one root, four intermediates, and one cross-sign. These new certificates are part of our larger plan to improve privacy on the web, by making ECDSA end-entity certificates widely available, and by making certificates smaller. Given that we issue 1.5 million certificates every day, what makes these ones special? Why did we
2020.02.29 CAA Rechecking Bug - Incidents - Let's Encrypt Community Support
On 2020-02-29 UTC, Let’s Encrypt found a bug in our CAA code. Our CA software, Boulder, checks for CAA records at the same time it validates a subscriber’s control of a domain name. Most subscribers issue a certificate immediately after domain control validation, but we consider a validation good for 30 days. That means in some cases we need to check CAA records a second time, just before issuance
Revoking certain certificates on March 4 - Help - Let's Encrypt Community Support
[Update 2020-03-05: The most up-to-date summary is at 2020.02.29 CAA Rechecking Bug] Due to the 2020.02.29 CAA Rechecking Bug, we unfortunately need to revoke many Let’s Encrypt TLS/SSL certificates. We’re e-mailing affected subscribers for whom we have contact information. This post and thread will collect answers to frequently asked questions about this revocation, and how to avoid problems by r
Let's Encrypt Has Issued a Billion Certificates - Let's Encrypt
We issued our billionth certificate on February 27, 2020. We’re going to use this big round number as an opportunity to reflect on what has changed for us, and for the Internet, leading up to this event. In particular, we want to talk about what has happened since the last time we talked about a big round number of certificates - one hundred million. One thing that’s different now is that the Web
ACME v1/v2: Validating challenges from multiple network vantage points - API Announcements - Let's Encrypt Community Support
On Wednesday February 19th, 2020 we’ll turn on stricter validation requirements in production. We’ll make multiple validation requests from different network perspectives. Most issuance should continue as normal; we believe that a small number of domain names may need fixing. The most common issue will be hosts that use extremely strict firewall rules to allow validation from only specified IP add
Looking Forward to 2019 - Let's Encrypt
Let’s Encrypt had a great year in 2018. We’re now serving more than 150 million websites while maintaining a stellar security and compliance track record. Most importantly though, the Web went from 67% encrypted page loads to 77% in 2018, according to statistics from Mozilla. This is an incredible rate of change! We’d like to thank all of the people and organizations who worked hard to create a mo
Let’s Encrypt at Scale
#Security Enabling HTTPS on 3,000+ websites is a bit of a pain. But as we are now in the age of increasing online privacy, we had to knuckle down and find a way to do it. We provide a platform for trade dealers to upload and advertise their stock online. As an extension of this, we offer a product that allows customers to host a private website using this stock, under their own domain. We wanted t
Certificates for localhost - Let's Encrypt
Last updated: Dec 21, 2017 | See all Documentation Sometimes people want to get a certificate for the hostname “localhost”, either for use in local development, or for distribution with a native application that needs to communicate with a web application. Let’s Encrypt can’t provide certificates for “localhost” because nobody uniquely owns it, and it’s not rooted in a top level domain like “.com”
Wildcard Certificates Coming January 2018 - Let's Encrypt
Update, March 13, 2018 Wildcard certificate support is live. Let’s Encrypt will begin issuing wildcard certificates in January of 2018. Wildcard certificates are a commonly requested feature and we understand that there are some use cases where they make HTTPS deployment easier. Our hope is that offering wildcards will help to accelerate the Web’s progress towards 100% HTTPS. Let’s Encrypt is curr
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Let’s Encrypt improves how we manage OCSP responses - Let's Encrypt
2022.01.25 Issue with TLS-ALPN-01 Validation Method
Naked Security – Sophos News
RHEL/CentOS 7 Fix for Let’s Encrypt Change
DNS alias mode
Let's Encrypt Status