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  2. 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 ...

  3. 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 ...

  4. Trust anchor - Wikipedia

    en.wikipedia.org/wiki/Trust_anchor

    The end-user of an operating system or web browser is implicitly trusting in the correct operation of that software, and the software manufacturer in turn is delegating trust for certain cryptographic operations to the certificate authorities responsible for the root certificates.

  5. 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 ...

  6. DNS-based Authentication of Named Entities - Wikipedia

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

    The certificate used must match the TLSA record, and it must also pass PKIX certification path validation to a trusted root-CA. A value of 2 is for what is commonly called trust anchor assertion (and DANE-TA). The TLSA record matches the certificate of the root CA, or one of the intermediate CAs, of the certificate in use by the service.

  7. Certificate authority - Wikipedia

    en.wikipedia.org/wiki/Certificate_authority

    A root CA certificate may be the base to issue multiple intermediate CA certificates with varying validation requirements. In addition to commercial CAs, some non-profits issue publicly-trusted digital certificates without charge, for example Let's Encrypt.

  8. Code signing - Wikipedia

    en.wikipedia.org/wiki/Code_signing

    The public key used to authenticate the code signature should be traceable back to a trusted root authority CA, preferably using a secure public key infrastructure (PKI). ). This does not ensure that the code itself can be trusted, only that it comes from the stated source (or more explicitly, from a particular private key

  9. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    The digital certificate chain of trust starts with a self-signed certificate, called a root certificate, trust anchor, or trust root. A certificate authority self-signs a root certificate to be able to sign other certificates. An intermediate certificate has a similar purpose to the root certificate – its only use is to sign other certificates.