OpenJDK 27 · java.security · APIdia, the JavaDoc alternative

Modifier and Type	Interface and Description
public interface	AlgorithmConstraints This interface specifies constraints for cryptographic algorithms, keys (key sizes), and other algorithm parameters.
public interface	AsymmetricKey An asymmetric key, which can be either a public key or a private key.
public interface	BinaryEncodable Preview Third Preview of PEM Encodings of Cryptographic Objects (JEP 538). This interface identifies the cryptographic objects that can be converted to and from binary data, and thereby encoded and decoded as PEM text.
public interface	Certificate Deprecated for removal since 1.2. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.cert.Certificate` and related classes. This is an interface of abstract methods for managing a variety of identity certificates.
public interface	DomainCombiner Deprecated for removal since 17. This class was only useful in conjunction with the Security Manager, which is no longer supported. There is no replacement for the Security Manager or this class. `DomainCombiner` was used to dynamically update `ProtectionDomain`s for access control operations and decisions.
public interface	Guard This interface represents a guard, which is an object that is used to protect access to another object.
public interface	Key The `Key` interface is the top-level interface for all keys.
public interface	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.
public interface	PrivateKey A private key.
public interface	PrivilegedAction< the type of the result of running the computation T> A computation to be performed by invoking `AccessController.doPrivileged` on the `PrivilegedAction` object.
public interface	PrivilegedExceptionAction< the type of the result of running the computation T> A computation to be performed that throws one or more checked exceptions.
public interface	PublicKey A public key.
public interface	SecureRandomParameters A marker interface for parameters used in various `SecureRandom` methods.

Class Summary

Modifier and Type	Class and Description
public class	AccessControlContext Deprecated for removal since 17. This class was only useful in conjunction with the the Security Manager, which is no longer supported. There is no replacement for the Security Manager or this class. `AccessControlContext` was used with the Security Manager for access control decisions based on context that it encapsulated.
public class	AccessControlException Deprecated for removal since 17. This exception was only useful in conjunction with the Security Manager, which is no longer supported. There is no replacement for the Security Manager or this class. This exception was originally thrown by the `AccessController` to indicate that a requested access was denied.
public class	AccessController Deprecated for removal since 17. This class was only useful in conjunction with the Security Manager, which is no longer supported. There is no replacement for the Security Manager or this class. `AccessController` was used with the Security Manager for access control operations and decisions.
public class	AlgorithmParameterGenerator The `AlgorithmParameterGenerator` class is used to generate a set of parameters to be used with a certain algorithm.
public abstract class	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.
public class	AlgorithmParameters This class is used as an opaque representation of cryptographic parameters.
public abstract class	AlgorithmParametersSpi This class defines the Service Provider Interface (SPI) for the `AlgorithmParameters` class, which is used to manage algorithm parameters.
public class	AllPermission The `AllPermission` is a permission that implies all other permissions.
pack-priv class	AllPermissionCollection An `AllPermissionCollection` stores a collection of `AllPermission` permissions.
public abstract class	AuthProvider This class defines login and logout methods for a provider.
public abstract class	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`.
pack-priv class	BasicPermissionCollection A `BasicPermissionCollection` stores a collection of `BasicPermission` permissions.
public class	CodeSigner This class encapsulates information about a code signer.
public class	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.
public class	DigestException This is the generic Message Digest exception.
public class	DigestInputStream A transparent stream that updates the associated message digest using the bits going through the stream.
public class	DigestOutputStream A transparent stream that updates the associated message digest using the bits going through the stream.
public class	DomainLoadStoreParameter Configuration data that specifies the keystores in a keystore domain.
public class	DrbgParameters This class specifies the parameters used by a DRBG (Deterministic Random Bit Generator).
public class	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.
public class	GuardedObject A GuardedObject is an object that is used to protect access to another object.
public abstract class	Identity Deprecated for removal since 1.2. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`. This class represents identities: real-world objects such as people, companies or organizations whose identities can be authenticated using their public keys.
public abstract class	IdentityScope Deprecated for removal since 1.2. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`. This class represents a scope for identities.
public class	InvalidAlgorithmParameterException This is the exception for invalid or inappropriate algorithm parameters.
public class	InvalidKeyException This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc.).
public class	InvalidParameterException This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
public class	KeyException This is the basic key exception.
public class	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.
public abstract class	KeyFactorySpi This class defines the Service Provider Interface (SPI) for the `KeyFactory` class.
public class	KeyManagementException This is the general key management exception for all operations dealing with key management.
public class	KeyPair This class is a simple holder for a key pair (a public key and a private key).
public abstract class	KeyPairGenerator The `KeyPairGenerator` class is used to generate pairs of public and private keys.
public abstract class	KeyPairGeneratorSpi This class defines the Service Provider Interface (SPI) for the `KeyPairGenerator` class, which is used to generate pairs of public and private keys.
public class	KeyRep Standardized representation for serialized Key objects.
public class	KeyStore This class represents a storage facility for cryptographic keys and certificates.
public class	KeyStoreException This is the generic KeyStore exception.
public abstract class	KeyStoreSpi This class defines the Service Provider Interface (SPI) for the `KeyStore` class.
public abstract class	MessageDigest This `MessageDigest` class provides applications the functionality of a message digest algorithm, such as SHA-1 or SHA-256.
public abstract class	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.
public class	NoSuchAlgorithmException This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
public class	NoSuchProviderException This exception is thrown when a particular security provider is requested but is not available in the environment.
public class	PEM Preview Third Preview of PEM Encodings of Cryptographic Objects (JEP 538). A `BinaryEncodable` representing a Privacy-Enhanced Mail (PEM) structure composed of a type identifier, Base64-encoded content, and optional leading data that precedes the PEM header.
public class	PEMDecoder Preview Third Preview of PEM Encodings of Cryptographic Objects (JEP 538). `PEMDecoder` implements a decoder for Privacy-Enhanced Mail (PEM) data.
public class	PEMEncoder Preview Third Preview of PEM Encodings of Cryptographic Objects (JEP 538). `PEMEncoder` implements an encoder for Privacy-Enhanced Mail (PEM) data.
public abstract class	Permission Abstract class for representing access to a system resource.
public abstract class	PermissionCollection Abstract class representing a collection of Permission objects.
public class	Permissions This class represents a heterogeneous collection of permissions.
pack-priv class	PermissionsEnumerator
pack-priv class	PermissionsHash A `PermissionsHash` stores a homogeneous set of permissions in a hashtable.
public class	PKCS12Attribute An attribute associated with a PKCS12 keystore entry.
public abstract class	Policy Deprecated for removal since 17. This class was only useful in conjunction with the Security Manager, which is no longer supported. A `Policy` object was responsible for determining whether code executing in the Java runtime environment had permission to perform a security-sensitive operation.
public abstract class	PolicySpi Deprecated for removal since 17. This class was only useful in conjunction with the Security Manager, which is no longer supported. There is no replacement for the Security Manager or this class. This class defines the Service Provider Interface (SPI) for the `Policy` class.
public class	PrivilegedActionException This exception is thrown by `doPrivileged(PrivilegedExceptionAction)` and `doPrivileged(PrivilegedExceptionAction, AccessControlContext context)` to indicate that the action being performed threw a checked exception.
public class	ProtectionDomain The `ProtectionDomain` class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions.
public abstract class	Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
public class	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.
public class	SecureClassLoader This class extends `ClassLoader` with additional support for defining classes with an associated code source and permissions.
public class	SecureRandom This class provides a cryptographically strong random number generator (RNG).
public abstract class	SecureRandomSpi This class defines the Service Provider Interface (SPI) for the `SecureRandom` class.
public class	Security This class centralizes all security properties and common security methods.
public class	SecurityPermission Deprecated for removal since 25. This permission cannot be used for controlling access to resources as the Security Manager is no longer supported. This class is for security permissions.
public abstract class	Signature The `Signature` class is used to provide applications the functionality of a digital signature algorithm.
public class	SignatureException This is the generic Signature exception.
public abstract class	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.
public class	SignedObject `SignedObject` is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
public abstract class	Signer Deprecated for removal since 1.2. This class is deprecated and subject to removal in a future version of Java SE. It has been replaced by `java.security.KeyStore`, the `java.security.cert` package, and `java.security.Principal`. This class is used to represent an Identity that can also digitally sign data.
public class	Timestamp This class encapsulates information about a signed timestamp.
public class	UnrecoverableEntryException This exception is thrown if an entry in the keystore cannot be recovered.
public class	UnrecoverableKeyException This exception is thrown if a key in the keystore cannot be recovered.
public class	UnresolvedPermission Deprecated for removal since 25. This permission cannot be used for controlling access to resources as the Security Manager is no longer supported. The `UnresolvedPermission` class used to hold Permissions that were "unresolved" when the `Policy` was initialized.
pack-priv class	UnresolvedPermissionCollection A `UnresolvedPermissionCollection` stores a collection of UnresolvedPermission permissions.
public class	URIParameter References Deprecated `Policy.Parameters` is deprecated or references (maybe indirectly) at least one deprecated element. A parameter that contains a URI pointing to data intended for a PolicySpi or ConfigurationSpi implementation.

Package java.security

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