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  2. Root certificate - Wikipedia

    en.wikipedia.org/wiki/Root_certificate

    In cryptography and computer security, a root certificate is a public key certificate that identifies a root certificate authority (CA). [1] Root certificates are self-signed (and it is possible for a certificate to have multiple trust paths, say if the certificate was issued by a root that was cross-signed) and form the basis of an X.509-based ...

  3. Certificate authority - Wikipedia

    en.wikipedia.org/wiki/Certificate_authority

    Worldwide, the certificate authority business is fragmented, with national or regional providers dominating their home market. This is because many uses of digital certificates, such as for legally binding digital signatures, are linked to local law, regulations, and accreditation schemes for certificate authorities.

  4. Chain of trust - Wikipedia

    en.wikipedia.org/wiki/Chain_of_trust

    The roles of root certificate, intermediate certificate and end-entity certificate as in the chain of trust. In computer security, a chain of trust is established by validating each component of hardware and software from the end entity up to the root certificate. It is intended to ensure that only trusted software and hardware can be used ...

  5. Let's Encrypt - Wikipedia

    en.wikipedia.org/wiki/Let's_Encrypt

    The root certificate was used to sign two intermediate certificates, [44] which are also cross-signed by the certificate authority IdenTrust. [ 7 ] [ 45 ] One of the intermediate certificates is used to sign issued certificates, while the other is kept offline as a backup in case of problems with the first intermediate certificate. [ 44 ]

  6. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    Browsers other than Firefox generally use the operating system's facilities to decide which certificate authorities are trusted. So, for instance, Chrome on Windows trusts the certificate authorities included in the Microsoft Root Program, while on macOS or iOS, Chrome trusts the certificate authorities in the Apple Root Program. [29]

  7. 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.

  8. CA/Browser Forum - Wikipedia

    en.wikipedia.org/wiki/CA/Browser_Forum

    The Certification Authority Browser Forum, also known as the CA/Browser Forum, is a voluntary consortium of certification authorities, vendors of web browsers and secure email software, operating systems, and other PKI-enabled applications that promulgates industry guidelines governing the issuance and management of X.509 v.3 digital certificates that chain to a trust anchor embedded in such ...

  9. Certification path validation algorithm - Wikipedia

    en.wikipedia.org/wiki/Certification_path...

    The certification path validation algorithm is the algorithm which verifies that a given certificate path is valid under a given public key infrastructure (PKI). A path starts with the Subject certificate and proceeds through a number of intermediate certificates up to a trusted root certificate, typically issued by a trusted certificate ...