Uses of Package
java.security.cert

Packages that use java.security.cert 
Package Description
java.net
Provides the classes for implementing networking applications.
java.security
Provides the classes and interfaces for the security framework.
java.security.cert
Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
java.util.jar
Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
javax.crypto
Provides the classes and interfaces for cryptographic operations.
javax.net.ssl
Provides classes for the secure socket package.
javax.security.auth.x500
This package contains the classes that should be used to store X500 Principal and X500 Private Credentials in a Subject.