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  2. Birth certificate - Wikipedia

    en.wikipedia.org/wiki/Birth_certificate

    Birth certificate. A birth certificate is a vital record that documents the birth of a person. The term "birth certificate" can refer to either the original document certifying the circumstances of the birth or to a certified copy of or representation of the ensuing registration of that birth. Depending on the jurisdiction, a record of birth ...

  3. Let's Encrypt - Wikipedia

    en.wikipedia.org/wiki/Let's_Encrypt

    Let's Encrypt is a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X.509 certificates for Transport Layer Security (TLS) encryption at no charge. It is the world's largest certificate authority, [3] used by more than 300 million websites, [4] with the goal of all websites being secure and using HTTPS.

  4. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    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 ...

  5. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  6. X.509 - Wikipedia

    en.wikipedia.org/wiki/X.509

    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. They are also used in offline applications, like ...

  7. Certificate signing request - Wikipedia

    en.wikipedia.org/wiki/Certificate_signing_request

    Certificate signing request. In public key infrastructure (PKI) systems, a certificate signing request ( CSR or certification request) is a message sent from an applicant to a certificate authority of the public key infrastructure (PKI) in order to apply for a digital identity certificate. The CSR usually contains the public key for which the ...

  8. Use AOL Certified Mail to confirm legitimate AOL emails

    help.aol.com/articles/what-is-aol-certified-mail

    Use AOL Certified Mail to confirm legitimate AOL emails. AOL may send you emails from time to time about products or features we think you'd be interested in. If you're ever concerned about the legitimacy of these emails, just check to see if there's a green "AOL Certified Mail" icon beside the sender name. When you open the email, you'll also ...

  9. Certificate Transparency - Wikipedia

    en.wikipedia.org/wiki/Certificate_Transparency

    Certificate Transparency. Certificate Transparency ( CT) is an Internet security standard for monitoring and auditing the issuance of digital certificates. [ 1] When an internet user interacts with a website, a trusted third party is needed to assure the user that the website is legitimate and that the website's encryption key is valid. This ...

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