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DigiCert, Inc. is a digital security company headquartered in Lehi, Utah. [1] DigiCert provides public key infrastructure (PKI) and validation required for issuing digital certificates or TLS/SSL certificates, acting as a certificate authority (CA) and trusted third party.
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 ...
In 2020, according to independent survey company Netcraft, "DigiCert is the world's largest high-assurance certificate authority, commanding 60% of the Extended Validation Certificate market, and 96% of organization-validated certificates globally.
The group was founded in February 2013 with the seven largest certificate authorities, issuers of SSL certificates — Comodo, Symantec, [1] Trend Micro, DigiCert, Entrust, [2] GlobalSign [3] and GoDaddy.
The acquisition of the CyberTrust root certificates makes DigiCert the second-largest Certificate Authority (CA) for high-assurance SSL Certificates. As part of the deal, DigiCert will assume management of the CyberTrust/Verizon trusted roots and intermediate certificates. Verizon will continue to offer SSL Certificates as a reseller of ...
The OCSP responder uses the certificate serial number to look up the revocation status of Alice's certificate. The OCSP responder looks in a CA database that Carol maintains. In this scenario, Carol's CA database is the only trusted location where a compromise to Alice's certificate would be recorded.
A root certificate is the top-most certificate of the tree, the private key which is used to "sign" other certificates. All certificates signed by the root certificate, with the "CA" field set to true, inherit the trustworthiness of the root certificate—a signature by a root certificate is somewhat analogous to "notarizing" identity in the ...
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.
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