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Java™ Platform
Standard Ed. 6

Package java.security

Provides the classes and interfaces for the security framework.

See:
          Description

Interface Summary
Certificate Deprecated. A new certificate handling package is created in the Java platform.
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.
Key The Key interface is the top-level interface for all keys.
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.
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<T> A computation to be performed with privileges enabled.
PrivilegedExceptionAction<T> A computation to be performed with privileges enabled, that throws one or more checked exceptions.
PublicKey A public key.
 

Class Summary
AccessControlContext An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
AccessController The AccessController class is used for access control operations and decisions.
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.
AllPermission The AllPermission is a permission that implies all other permissions.
AuthProvider This class defines login and logout methods for a provider.
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.
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.
DigestInputStream A transparent stream that updates the associated message digest using the bits going through the stream.
DigestOutputStream A transparent stream that updates the associated message digest using the bits going through the stream.
GuardedObject A GuardedObject is an object that is used to protect access to another object.
Identity Deprecated. This class is no longer used.
IdentityScope Deprecated. This class is no longer used.
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.
KeyRep Standardized representation for serialized Key objects.
KeyStore This class represents a storage facility for cryptographic keys and certificates.
KeyStore.Builder A description of a to-be-instantiated KeyStore object.
KeyStore.CallbackHandlerProtection A ProtectionParameter encapsulating a CallbackHandler.
KeyStore.PasswordProtection A password-based implementation of ProtectionParameter.
KeyStore.PrivateKeyEntry A KeyStore entry that holds a PrivateKey and corresponding certificate chain.
KeyStore.SecretKeyEntry A KeyStore entry that holds a SecretKey.
KeyStore.TrustedCertificateEntry A KeyStore entry that holds a trusted Certificate.
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.
Permission Abstract class for representing access to a system resource.
PermissionCollection Abstract class representing a collection of Permission objects.
Permissions This class represents a heterogeneous collection of Permissions.
Policy A Policy object is responsible for determining whether code executing in the Java runtime environment has permission to perform a security-sensitive operation.
PolicySpi This class defines the Service Provider Interface (SPI) for the Policy class.
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.
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.
SecureRandom This class provides a cryptographically strong random number generator (RNG).
SecureRandomSpi This class defines the Service Provider Interface (SPI) for the SecureRandom class.
Security This class centralizes all security properties and common security methods.
SecurityPermission This class is for security permissions.
Signature This 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.
SignedObject SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
Signer Deprecated. This class is no longer used.
Timestamp This class encapsulates information about a signed timestamp.
UnresolvedPermission The UnresolvedPermission class is used to hold Permissions that were "unresolved" when the Policy was initialized.
URIParameter A parameter that contains a URI pointing to data intended for a PolicySpi or ConfigurationSpi implementation.
 

Enum Summary
KeyRep.Type Key type.
 

Exception Summary
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.
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.
PrivilegedActionException This exception is thrown by doPrivileged(PrivilegedExceptionAction) and doPrivileged(PrivilegedExceptionAction, AccessControlContext context) to indicate that the action being performed threw a checked exception.
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.
 

Package java.security Description

Provides the classes and interfaces for the security framework. This includes classes that implement an easily configurable, fine-grained access control security architecture. This package also supports the generation and storage of cryptographic public key pairs, as well as a number of exportable cryptographic operations including those for message digest and signature generation. Finally, this package provides classes that support signed/guarded objects and secure random number generation. Many of the classes provided in this package (the cryptographic and secure random number generator classes in particular) are provider-based. The class itself defines a programming interface to which applications may write. The implementations themselves may then be written by independent third-party vendors and plugged in seamlessly as needed. Therefore application developers may take advantage of any number of provider-based implementations without having to add or rewrite code.

Package Specification

Related Documentation

For further documentation, please see:

Since:
JDK1.1

Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2008 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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