Uses of Interface
java.security.PrivateKey

Packages that use PrivateKey 
Package Description
java.security
Provides the classes and interfaces for the security framework.
java.security.interfaces
Provides interfaces for generating RSA (Rivest, Shamir and Adleman AsymmetricCipher algorithm) keys as defined in the RSA Laboratory Technical Note PKCS#1, and DSA (Digital Signature Algorithm) keys as defined in NIST's FIPS-186.
javax.crypto.interfaces
Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.
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.
jdk.security.jarsigner
This package defines APIs for signing jar files.