Understanding Path construction-af - PKI

Public Key Infrastructure (PKI) supports a number of security-related services, includingdata confidentiality, data integrity, and end-entity authentication. Fundamentally, theseservices are based on the proper use of public/private key pairs. The public component ofthis key pair is issued in the form of a public key certificate and, in association with theappropriate algorithm(s), it may be used to verify a digital signature, encrypt data, a certificate can be used, it must be validated. In order to validate such a certificate ,a chain of certificates or a certification path between the certificate and an establishedpoint of trust must be established, and every certificate within that path must be process is referred to as certification path general, certification path processing consists of two phases: 1) path construction and2) path validation described as follows:1) path constructio

PKI Forum: Understanding Certification Path Construction: September 2002 3 A certificate that one CA issues to another CA is referred to as a cross-

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