KeyRep (Java Platform SE 8 ) (original) (raw)

• java.lang.Object

• • java.security.KeyRep

• All Implemented Interfaces:
  Serializable

public class KeyRep
extends Object
implements Serializable
Standardized representation for serialized Key objects.
Note that a serialized Key may contain sensitive information which should not be exposed in untrusted environments. See the Security Appendix of the Serialization Specification for more information.
Since:
1.5
See Also:
Key, KeyFactory, SecretKeySpec, X509EncodedKeySpec, PKCS8EncodedKeySpec, Serialized Form

• • Nested Class Summary

  Nested Classes

  Modifier and Type	Class	Description
  static class	KeyRep.Type	Key type.

  • Constructor Summary

  Constructors

  Constructor	Description
  KeyRep(KeyRep.Type type,String algorithm,String format, byte[] encoded)	Construct the alternate Key class.

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	Description
  protected Object	readResolve()	Resolve the Key object.

     * ### Methods inherited from class java.lang.[Object](../../java/lang/Object.html "class in java.lang")  
     `[clone](../../java/lang/Object.html#clone--), [equals](../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../java/lang/Object.html#finalize--), [getClass](../../java/lang/Object.html#getClass--), [hashCode](../../java/lang/Object.html#hashCode--), [notify](../../java/lang/Object.html#notify--), [notifyAll](../../java/lang/Object.html#notifyAll--), [toString](../../java/lang/Object.html#toString--), [wait](../../java/lang/Object.html#wait--), [wait](../../java/lang/Object.html#wait-long-), [wait](../../java/lang/Object.html#wait-long-int-)`

• • Constructor Detail

     * #### KeyRep  
     public KeyRep([KeyRep.Type](../../java/security/KeyRep.Type.html "enum in java.security") type,  
                   [String](../../java/lang/String.html "class in java.lang") algorithm,  
                   [String](../../java/lang/String.html "class in java.lang") format,  
                   byte[] encoded)  
     Construct the alternate Key class.  
     Parameters:  
     `type` \- either one of Type.SECRET, Type.PUBLIC, or Type.PRIVATE  
     `algorithm` \- the algorithm returned from`Key.getAlgorithm()`  
     `format` \- the encoding format returned from`Key.getFormat()`  
     `encoded` \- the encoded bytes returned from`Key.getEncoded()`  
     Throws:  
     `[NullPointerException](../../java/lang/NullPointerException.html "class in java.lang")` \- if type is `null`, if algorithm is `null`, if format is `null`, or if encoded is `null`  

  • Method Detail

    * #### readResolve  
    protected [Object](../../java/lang/Object.html "class in java.lang") readResolve()  
                          throws [ObjectStreamException](../../java/io/ObjectStreamException.html "class in java.io")  
    Resolve the Key object.  
     This method supports three Type/format combinations:  
             * Type.SECRET/"RAW" - returns a SecretKeySpec object constructed using encoded key bytes and algorithm  
             * Type.PUBLIC/"X.509" - gets a KeyFactory instance for the key algorithm, constructs an X509EncodedKeySpec with the encoded key bytes, and generates a public key from the spec  
             * Type.PRIVATE/"PKCS#8" - gets a KeyFactory instance for the key algorithm, constructs a PKCS8EncodedKeySpec with the encoded key bytes, and generates a private key from the spec  
    Returns:  
    the resolved Key object  
    Throws:  
    `[ObjectStreamException](../../java/io/ObjectStreamException.html "class in java.io")` \- if the Type/format combination is unrecognized, if the algorithm, key format, or encoded key bytes are unrecognized/invalid, of if the resolution of the key fails for any reason

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.