@NonNullByDefault

Package java.security

Contains core language classes related to permission management.

Interface Summary

Interface	Description
Key	The Key interface is the top-level interface for all keys.
Principal	This interface represents the abstract notion of a principal, which can be used to represent any entity, such as an individual, a corporation, and a login id.
PrivateKey	A private key.
PublicKey	A public key.

Class Summary

Class	Description
KeyFactory	Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material), and vice versa.
KeyFactorySpi	This class defines the Service Provider Interface (SPI) for the KeyFactory class.
KeyPair	This class is a simple holder for a key pair (a public key and a private key).
KeyPairGenerator	The KeyPairGenerator class is used to generate pairs of public and private keys.
KeyPairGeneratorSpi	This class defines the Service Provider Interface (SPI) for the KeyPairGenerator class, which is used to generate pairs of public and private keys.
KeyStore	This class represents a storage facility for cryptographic keys and certificates.
KeyStoreSpi	This class defines the Service Provider Interface (SPI) for the KeyStore class.
MessageDigest	This MessageDigest class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
MessageDigestSpi	This class defines the Service Provider Interface (SPI) for the MessageDigest class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
SecureRandom	This class provides a cryptographically strong random number generator (RNG).
SecureRandomSpi	This class defines the Service Provider Interface (SPI) for the SecureRandom class.
SecurityPermission	This class is for security permissions.
Signature	The Signature class is used to provide applications the functionality of a digital signature algorithm.
SignatureSpi	This class defines the Service Provider Interface (SPI) for the Signature class, which is used to provide the functionality of a digital signature algorithm.

Exception Summary

Exception	Description
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.
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).
InvalidParameterException	This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
KeyException	This is the basic key exception.
KeyManagementException	This is the general key management exception for all operations dealing with key management.
KeyStoreException	This is the generic KeyStore exception.
NoSuchAlgorithmException	This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
NoSuchProviderException	This exception is thrown when a particular security provider is requested but is not available in the environment.
ProviderException	A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
SignatureException	This is the generic Signature exception.
UnrecoverableEntryException	This exception is thrown if an entry in the keystore cannot be recovered.
UnrecoverableKeyException	This exception is thrown if a key in the keystore cannot be recovered.