e/Certification path validation algorithm

Information
has gloss	eng: 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 Certification Authority (CA).
lexicalization	eng: Certification path validation algorithm
instance of	e/Cryptographic protocol