java.security.cert
Interfaces  
X509Extension
Classes  
Certificate
CertificateFactory
CertificateFactorySpi
CRL
X509Certificate
X509CRL
X509CRLEntry
Exceptions  
CertificateEncodingException
CertificateException
CertificateExpiredException
CertificateNotYetValidException
CertificateParsingException
CRLException