PrivateKey

public interface PrivateKey
implements Destroyable, Key

java.security.PrivateKey
DHPrivateKey The interface to a Diffie-Hellman private key. 
DSAPrivateKey The standard interface to a DSA private key. 
ECPrivateKey The interface to an elliptic curve (EC) private key. 
EdECPrivateKey An interface for an elliptic curve private key as defined by RFC 8032: Edwards-Curve Digital Signature Algorithm (EdDSA)
RSAMultiPrimePrivateCrtKey The interface to an RSA multi-prime private key, as defined in the PKCS#1 v2.2 standard, using the Chinese Remainder Theorem (CRT) information values. 
RSAPrivateCrtKey The interface to an RSA private key, as defined in the PKCS#1 v2.2 standard, using the Chinese Remainder Theorem (CRT) information values. 
RSAPrivateKey The interface to an RSA private key. 
XECPrivateKey An interface for an elliptic curve private key as defined by RFC 7748. 


A private key. The purpose of this interface is to group (and provide type safety for) all private key interfaces.

Note: The specialized private key interfaces extend this interface. See, for example, the DSAPrivateKey interface in java.security.interfaces.

Implementations should override the default destroy and isDestroyed methods from the Destroyable interface to enable sensitive key information to be destroyed, cleared, or in the case where such information is immutable, unreferenced. Finally, since PrivateKey is Serializable, implementations should also override ObjectOutputStream.writeObject(java.lang.Object) to prevent keys that have been destroyed from being serialized.

Summary

Constants

long serialVersionUID

This constant was deprecated in API level 34. A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

Inherited constants

long serialVersionUID

This constant was deprecated in API level 34. A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

Inherited methods

default void destroy()

Destroy this Object.

default boolean isDestroyed()

Determine if this Object has been destroyed.

abstract String getAlgorithm()

Returns the standard algorithm name for this key.

abstract byte[] getEncoded()

Returns the key in its primary encoding format, or null if this key does not support encoding.

abstract String getFormat()

Returns the name of the primary encoding format of this key, or null if this key does not support encoding.

Constants

serialVersionUID

Added in API level 1
Deprecated in API level 34
public static final long serialVersionUID

This constant was deprecated in API level 34.
A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

The class fingerprint that is set to indicate serialization compatibility with a previous version of the class.

Constant Value: 6034044314589513430 (0x53bd3b559a12c6d6)