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  2. X.509 - Wikipedia

    en.wikipedia.org/wiki/X.509

    X.509 certificates bind an identity to a public key using a digital signature. In the X.509 system, there are two types of certificates. The first is a CA certificate. The second is an end-entity certificate. A CA certificate can issue other certificates. The top level, self-signed CA certificate is sometimes called the Root CA certificate.

  3. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    CRL for a revoked cert of Verisign CA. There are two different states of revocation defined in RFC 5280: Revoked A certificate is irreversibly revoked if, for example, it is discovered that the certificate authority (CA) had improperly issued a certificate, or if a private-key is thought to have been compromised.

  4. Online Certificate Status Protocol - Wikipedia

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

    All versions of Mozilla Firefox support OCSP checking. Firefox 3 enables OCSP checking by default. [16] Safari on macOS supports OCSP checking. It is enabled by default as of Mac OS X 10.7 (Lion). Prior to that, it has to be manually activated in Keychain preferences. [17] Versions of Opera from 8.0 [18] [19] to the current version support OCSP ...

  5. OCSP stapling - Wikipedia

    en.wikipedia.org/wiki/OCSP_stapling

    The Online Certificate Status Protocol (OCSP) stapling, formally known as the TLS Certificate Status Request extension, is a standard for checking the revocation status of X.509 digital certificates. [1]

  6. Certificate signing request - Wikipedia

    en.wikipedia.org/wiki/Certificate_signing_request

    The first part, ASN.1 type CertificationRequestInfo, consists of a version number (which is 0 for all known versions, 1.0, 1.5, and 1.7 of the specifications), the subject name, the public key (algorithm identifier + bit string), and a collection of attributes providing additional information about the subject of the certificate. The attributes ...

  7. Certificate policy - Wikipedia

    en.wikipedia.org/wiki/Certificate_policy

    When in use with X.509 certificates, a specific field can be set to include a link to the associated certificate policy. Thus, during an exchange, any relying party has an access to the assurance level associated with the certificate, and can decide on the level of trust to put in the certificate.

  8. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    The most common format for public key certificates is defined by X.509. Because X.509 is very general, the format is further constrained by profiles defined for certain use cases, such as Public Key Infrastructure (X.509) as defined in RFC 5280.

  9. Version history for TLS/SSL support in web browsers

    en.wikipedia.org/wiki/Version_history_for_TLS/...

    Browser version Platform Browser version Operating system Future release; under development Browser version Operating system Current latest release Browser version Operating system Former release; still supported Browser version Operating system Former release; long-term support still active, but will end in less than 12 months Browser version