Public Key Infrastructure. July 2011. Topics. The need of PKI Trust Model PKI Structures CA types PGP. Public Key Distribution issue. Public Key cryptography solves the problem of Confidentiality, Integrity Authenticity Non-repudiation But how to ensure the public key is not faked?
– Easy to build
– Easy to maintain
– All users trust this CA
– Paths have one certificate and one CRL
– Doesn’t scale particularly well