Uses of Package java.security (Java Platform SE 7 b118)

спецификации, руководства, описания, API

Please note that the specifications and other information contained herein are not final and are subject to change. The information is being made available to you solely for purpose of evaluation.

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java™ Platform
Standard Ed. 7
DRAFT ea-b118

PREV NEXT

FRAMES NO FRAMES

Uses of Package
java.security

Packages that use java.security
Package	Description
java.awt	Contains all of the classes for creating user interfaces and for painting graphics and images.
java.dyn	PROVISIONAL API, WORK IN PROGRESS: This package contains dynamic language support provided directly by the Java core class libraries and virtual machine.
java.io	Provides for system input and output through data streams, serialization and the file system.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.instrument	Provides services that allow Java programming language agents to instrument programs running on the JVM.
java.lang.management	Provides the management interface for monitoring and management of the Java virtual machine as well as the operating system on which the Java virtual machine is running.
java.lang.reflect	Provides classes and interfaces for obtaining reflective information about classes and objects.
java.net	Provides the classes for implementing networking applications.
java.nio.file	Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
java.nio.file.attribute	Interfaces and classes providing access to file and file system attributes.
java.security	Provides the classes and interfaces for the security framework.
java.security.acl	The classes and interfaces in this package have been superseded by classes in the java.security package.
java.security.cert	Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
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.
java.security.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
java.sql	Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java^TM programming language.
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.concurrent	Utility classes commonly useful in concurrent programming.
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.
java.util.logging	Provides the classes and interfaces of the Java^TM 2 platform's core logging facilities.
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.interfaces	Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.
javax.crypto.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
javax.management	Provides the core classes for the Java Management Extensions.
javax.management.loading	Provides the classes which implement advanced dynamic loading.
javax.management.remote	Interfaces for remote access to JMX MBean servers.
javax.net.ssl	Provides classes for the secure socket package.
javax.security.auth	This package provides a framework for authentication and authorization.
javax.security.auth.kerberos	This package contains utility classes related to the Kerberos network authentication protocol.
javax.security.auth.login	This package provides a pluggable authentication framework.
javax.security.auth.x500	This package contains the classes that should be used to store X500 Principal and X500 Private Crendentials in a Subject.
javax.sound.sampled	Provides interfaces and classes for capture, processing, and playback of sampled audio data.
javax.xml.bind	Provides a runtime binding framework for client applications including unmarshalling, marshalling, and validation capabilities.
javax.xml.crypto	Common classes for XML cryptography.
javax.xml.crypto.dsig	Classes for generating and validating XML digital signatures.
javax.xml.crypto.dsig.dom	DOM-specific classes for the `javax.xml.crypto.dsig` package.
javax.xml.crypto.dsig.keyinfo	Classes for parsing and processing `KeyInfo` elements and structures.
javax.xml.ws	This package contains the core JAX-WS APIs.
javax.xml.ws.spi.http	Provides HTTP SPI that is used for portable deployment of JAX-WS web services in containers(for e.g.
org.ietf.jgss	This package presents a framework that allows application developers to make use of security services like authentication, data integrity and data confidentiality from a variety of underlying security mechanisms like Kerberos, using a unified API.

Classes in java.security used by java.awt
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.dyn
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.io
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.

Classes in java.security used by java.lang
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.

Classes in java.security used by java.lang.instrument
Class and Description
ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.

Classes in java.security used by java.lang.management
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.lang.reflect
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.net
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
CodeSource This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate chains that were used to verify signed code originating from that location.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.
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.
SecureClassLoader This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.

Classes in java.security used by java.nio.file
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.nio.file.attribute
Class and Description
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.

Classes in java.security used by java.security
Class and Description
AccessControlContext An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
AccessControlException This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
AlgorithmParameterGenerator The `AlgorithmParameterGenerator` class is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameterGeneratorSpi This class defines the Service Provider Interface (SPI) for the `AlgorithmParameterGenerator` class, which is used to generate a set of parameters to be used with a certain algorithm.
AlgorithmParameters This class is used as an opaque representation of cryptographic parameters.
AlgorithmParametersSpi This class defines the Service Provider Interface (SPI) for the `AlgorithmParameters` class, which is used to manage algorithm parameters.
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Certificate Deprecated. A new certificate handling package is created in the Java platform. This Certificate interface is entirely deprecated and is here to allow for a smooth transition to the new package.
CodeSigner This class encapsulates information about a code signer.
CodeSource This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate chains that were used to verify signed code originating from that location.
CryptoPrimitive An enumeration of cryptographic primitives.
DigestException This is the generic Message Digest exception.
DomainCombiner A `DomainCombiner` provides a means to dynamically update the ProtectionDomains associated with the current `AccessControlContext`.
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.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Identity Deprecated. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
IdentityScope Deprecated. This class is no longer used. Its functionality has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`.
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.
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 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.
KeyManagementException This is the general key management exception for all operations dealing with key management.
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.
KeyRep.Type Key type.
KeyStore This class represents a storage facility for cryptographic keys and certificates.
KeyStore.Builder A description of a to-be-instantiated KeyStore object.
KeyStore.Entry A marker interface for `KeyStore` entry types.
KeyStore.LoadStoreParameter A marker interface for `KeyStore` `load` and `store` parameters.
KeyStore.ProtectionParameter A marker interface for keystore protection parameters.
KeyStoreException This is the generic KeyStore exception.
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 MD5 or SHA.
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.
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.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.
Policy A Policy object is responsible for determining whether code executing in the Java runtime environment has permission to perform a security-sensitive operation.
Policy.Parameters This represents a marker interface for Policy parameters.
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.
PrivilegedAction A computation to be performed with privileges enabled.
PrivilegedActionException This exception is thrown by `doPrivileged(PrivilegedExceptionAction)` and `doPrivileged(PrivilegedExceptionAction, AccessControlContext context)` to indicate that the action being performed threw a checked exception.
PrivilegedExceptionAction A computation to be performed with privileges enabled, that throws one or more checked exceptions.
ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
Provider.Service The description of a security service.
PublicKey A public key.
SecureRandom This class provides a cryptographically strong random number generator (RNG).
SecureRandomSpi This class defines the Service Provider Interface (SPI) for the `SecureRandom` class.
Signature This Signature class is used to provide applications the functionality of a digital signature algorithm.
SignatureException This is the generic Signature exception.
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.
Timestamp This class encapsulates information about a signed timestamp.
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.

Classes in java.security used by java.security.acl
Class and Description
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.

Classes in java.security used by java.security.cert
Class and Description
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).
KeyStore This class represents a storage facility for cryptographic keys and certificates.
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.
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.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
PublicKey A public key.
SignatureException This is the generic Signature exception.

Classes in java.security used by java.security.interfaces
Class and Description
InvalidParameterException This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
Key The Key interface is the top-level interface for all keys.
PrivateKey A private key.
PublicKey A public key.
SecureRandom This class provides a cryptographically strong random number generator (RNG).

Classes in java.security used by java.security.spec
Class and Description
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 java.sql
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by java.util
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.

Classes in java.security used by java.util.concurrent
Class and Description
PrivilegedAction A computation to be performed with privileges enabled.
PrivilegedExceptionAction A computation to be performed with privileges enabled, that throws one or more checked exceptions.

Classes in java.security used by java.util.jar
Class and Description
CodeSigner This class encapsulates information about a code signer.

Classes in java.security used by java.util.logging
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by javax.crypto
Class and Description
AlgorithmParameters This class is used as an opaque representation of cryptographic parameters.
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.
NoSuchProviderException This exception is thrown when a particular security provider is requested but is not available in the environment.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
SecureRandom This class provides a cryptographically strong random number generator (RNG).

Classes in java.security used by javax.crypto.interfaces
Class and Description
Key The Key interface is the top-level interface for all keys.
PrivateKey A private key.
PublicKey A public key.

Classes in java.security used by javax.crypto.spec
Class and Description
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.

Classes in java.security used by javax.management
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.

Classes in java.security used by javax.management.loading
Class and Description
SecureClassLoader This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.

Classes in java.security used by javax.management.remote
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
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.

Classes in java.security used by javax.net.ssl
Class and Description
AlgorithmConstraints This interface specifies constraints for cryptographic algorithms, keys (key sizes), and other algorithm parameters.
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
InvalidAlgorithmParameterException This is the exception for invalid or inappropriate algorithm parameters.
KeyManagementException This is the general key management exception for all operations dealing with key management.
KeyStore This class represents a storage facility for cryptographic keys and certificates.
KeyStore.Builder A description of a to-be-instantiated KeyStore object.
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.
Permission Abstract class for representing access to a system resource.
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.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
SecureRandom This class provides a cryptographically strong random number generator (RNG).
UnrecoverableKeyException This exception is thrown if a key in the keystore cannot be recovered.

Classes in java.security used by javax.security.auth
Class and Description
AccessControlContext An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
DomainCombiner A `DomainCombiner` provides a means to dynamically update the ProtectionDomains associated with the current `AccessControlContext`.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.
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.
PrivilegedAction A computation to be performed with privileges enabled.
PrivilegedActionException This exception is thrown by `doPrivileged(PrivilegedExceptionAction)` and `doPrivileged(PrivilegedExceptionAction, AccessControlContext context)` to indicate that the action being performed threw a checked exception.
PrivilegedExceptionAction A computation to be performed with privileges enabled, that throws one or more checked exceptions.
ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.

Classes in java.security used by javax.security.auth.kerberos
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Key The Key interface is the top-level interface for all keys.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.
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.

Classes in java.security used by javax.security.auth.login
Class and Description
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.
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.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.

Classes in java.security used by javax.security.auth.x500
Class and Description
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.

Classes in java.security used by javax.sound.sampled
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by javax.xml.bind
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.

Classes in java.security used by javax.xml.crypto
Class and Description
Key The Key interface is the top-level interface for all keys.

Classes in java.security used by javax.xml.crypto.dsig
Class and Description
InvalidAlgorithmParameterException This is the exception for invalid or inappropriate algorithm parameters.
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.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.

Classes in java.security used by javax.xml.crypto.dsig.dom
Class and Description
Key The Key interface is the top-level interface for all keys.

Classes in java.security used by javax.xml.crypto.dsig.keyinfo
Class and Description
KeyException This is the basic key exception.
NoSuchProviderException This exception is thrown when a particular security provider is requested but is not available in the environment.
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
PublicKey A public key.

Classes in java.security used by javax.xml.ws
Class and Description
BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
Guard This interface represents a guard, which is an object that is used to protect access to another object.
Permission Abstract class for representing access to a system resource.
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.

Classes in java.security used by javax.xml.ws.spi.http
Class and Description
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.

Classes in java.security used by org.ietf.jgss
Class and Description
Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.