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2. Server Name Indication - Wikipedia

   en.wikipedia.org/wiki/Server_Name_Indication

   In March 2020, ESNI was reworked into the ECH extension, after analysis demonstrated that encrypting only the SNI is insufficient. For example, specifications permit the Pre-Shared Key extension to contain any data to facilitate session resumption, even transmission of a cleartext copy of exactly the same server name that is encrypted by ESNI.

3. Public key certificate - Wikipedia

   en.wikipedia.org/wiki/Public_key_certificate

   In cryptography, a public key certificate, also known as a digital certificate or identity certificate, is an electronic document used to prove the validity of a public key. [ 1 ] [ 2 ] The certificate includes the public key and information about it, information about the identity of its owner (called the subject), and the digital signature of ...

4. Automatic Certificate Management Environment - Wikipedia

   en.wikipedia.org/wiki/Automatic_Certificate...

   The ISRG provides free and open-source reference implementations for ACME: certbot is a Python-based implementation of server certificate management software using the ACME protocol, [6] [7] [8] and boulder is a certificate authority implementation, written in Go. [9] Since 2015 a large variety of client options have appeared for all operating ...

5. Domain registration - Wikipedia

   en.wikipedia.org/wiki/Domain_registration

   As of 2010, the retail cost generally ranges from a low of about $7.50 per year to about $35 per year for a simple domain registration, although registrars often drop the price far lower – sometimes even free – when ordered with other products. The maximum period of registration for a domain name is 10 years.

6. Certificate Transparency - Wikipedia

   en.wikipedia.org/wiki/Certificate_Transparency

   Certificates that support certificate transparency must include one or more signed certificate timestamps (SCTs), which is a promise from a log operator to include the certificate in their log within a maximum merge delay (MMD). [4] [3] At some point within the maximum merge delay, the log operator adds the certificate to their log.

7. Domain-validated certificate - Wikipedia

   en.wikipedia.org/wiki/Domain-validated_certificate

   A domain validated certificate (DV) is an X.509 public key certificate typically used for Transport Layer Security (TLS) where the domain name of the applicant is validated by proving some control over a DNS domain. [1] Domain validated certificates were first distributed by GeoTrust in 2002 before becoming a widely accepted method. [2]

8. Comparison of TLS implementations - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_TLS...

   SSL 3.0 (1996) and TLS 1.0 (1999) are successors with two weaknesses in CBC-padding that were explained in 2001 by Serge Vaudenay. [28] TLS 1.1 (2006) fixed only one of the problems, by switching to random initialization vectors (IV) for CBC block ciphers, whereas the more problematic use of mac-pad-encrypt instead of the secure pad-mac-encrypt ...

9. Online Certificate Status Protocol - Wikipedia

   en.wikipedia.org/wiki/Online_Certificate_Status...

   In this case, the responder's certificate (the one that is used to sign the response) must be issued by the issuer of the certificate in question, and must include a certain extension that marks it as an OCSP signing authority (more precisely, an extended key usage extension with the OID {iso(1) identified-organization(3) dod(6) internet(1 ...