Uses of Package
java.security

Packages that use java.security

java.security	Provides the classes and interfaces for the security framework.
java.security.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.

Classes in java.security used by java.security

DigestException
This is the generic Message Digest exception.

GeneralSecurityException
The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.

InvalidKeyException
This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).

Key
The Key interface is the top-level interface for all keys.

KeyException
This is the basic key exception.

KeyFactory
Key factories are used to convert key specifications (transparent representations of the underlying key material) into keys (opaque cryptographic keys of type Key).

MessageDigest
This MessageDigest class provides applications the functionality of a message digest algorithm, such as MD5 or SHA.

NoSuchAlgorithmException
This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.

PublicKey
A public key.

Signature
This Signature class is used to provide applications the functionality of a digital signature algorithm.

SignatureException
This is the generic Signature exception.

Classes in java.security used by java.security.spec

GeneralSecurityException
The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.

Classes in java.security used by javax.crypto

GeneralSecurityException
The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.

InvalidAlgorithmParameterException
This is the exception for invalid or inappropriate algorithm parameters.

InvalidKeyException
This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).

Key
The Key interface is the top-level interface for all keys.

NoSuchAlgorithmException
This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.

Classes in java.security used by javax.crypto.spec

Key
The Key interface is the top-level interface for all keys.