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2. Public key certificate - Wikipedia

   en.wikipedia.org/wiki/Public_key_certificate

   The certificate provider signs the request, thus producing a public certificate. During web browsing, this public certificate is served to any web browser that connects to the web site and proves to the web browser that the provider believes it has issued a certificate to the owner of the web site.

3. Certificate signing request - Wikipedia

   en.wikipedia.org/wiki/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 certificate should be issued ...

4. Certificate Transparency - Wikipedia

   en.wikipedia.org/wiki/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 for assurance that the website is legitimate and that the website's encryption key is valid.

5. Fix security certificate error messages in Internet Explorer

   help.aol.com/articles/message-the-security...

   Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer.

6. HTTPS - Wikipedia

   https://en.wikipedia.org/wiki/HTTPS

   To prepare a web server to accept HTTPS connections, the administrator must create a public key certificate for the web server. This certificate must be signed by a trusted certificate authority for the web browser to accept it without warning. The authority certifies that the certificate holder is the operator of the web server that presents it.

7. 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.