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  2. X.509 - Wikipedia

    en.wikipedia.org/wiki/X.509

    In cryptography, X.509 is an International Telecommunication Union (ITU) standard defining the format of public key certificates. [1] X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, [2] the secure protocol for browsing the web.

  3. DNS-based Authentication of Named Entities - Wikipedia

    en.wikipedia.org/wiki/DNS-based_Authentication...

    The TLSA record matches the certificate of the root CA, or one of the intermediate CAs, of the certificate in use by the service. The certification path must be valid up to the matching certificate, but there is no need for a trusted root-CA. A value of 3 is for what is commonly called domain issued certificate (and DANE-EE). The TLSA record ...

  4. 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 ...

  5. How AOL uses SSL to protect your account

    help.aol.com/articles/how-aol-uses-ssl-to...

    SSL (Secure Sockets Layer) is an industry standard for encrypting private data sent over the Internet. It helps protect your account from hackers and insures the security of private data sent over the Internet, like credit cards and passwords.

  6. Wildcard DNS record - Wikipedia

    en.wikipedia.org/wiki/Wildcard_DNS_record

    A wildcard DNS record is a record in a DNS zone that will match requests for non-existent domain names. A wildcard DNS record is specified by using a * as the leftmost label (part) of a domain name, e.g. *.example.com. The exact rules for when a wildcard will match are specified in RFC 1034, but the rules are neither intuitive nor clearly ...

  7. DNS Certification Authority Authorization - Wikipedia

    en.wikipedia.org/wiki/DNS_Certification...

    The value associated with the chosen property tag. The lack of any CAA records authorizes normal unrestricted issuance, and the presence of a single blank issue tag disallows all issuance. [11] [9] [18] Third parties monitoring certificate authority behavior might check newly issued certificates against the domain's CAA records.

  8. Self-signed certificate - Wikipedia

    en.wikipedia.org/wiki/Self-signed_certificate

    For example, the validity dates of a self-signed certificate might not be trusted because the entity could always create and sign a new certificate that contained a valid date range. The values in a self-signed certificate can only be trusted when the values were verified out-of-band during the acceptance of the certificate, and there is a ...

  9. Extended Validation Certificate - Wikipedia

    en.wikipedia.org/.../Extended_Validation_Certificate

    An Extended Validation (EV) Certificate is a certificate conforming to X.509 that proves the legal entity of the owner and is signed by a certificate authority key that can issue EV certificates. EV certificates can be used in the same manner as any other X.509 certificates, including securing web communications with HTTPS and signing software ...