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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » java.security 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.security.KeyFactory

KeyFactory
public class KeyFactory (Code)
Key factories are used to convert key specifications (transparent representations of the underlying key material) into keys (opaque cryptographic keys of type Key).
version:
   1.28, 05/07/02
See Also:   Key
See Also:   PublicKey
See Also:   java.security.spec.KeySpec
See Also:   java.security.spec.X509EncodedKeySpec
since:
   1.2



Constructor Summary
 KeyFactory()
     Creates a KeyFactory object.

Method Summary
final public  PublicKeygeneratePublic(KeySpec keySpec)
     Generates a public key object from the provided key specification (key material).
Parameters:
  keySpec - the specification (key material) of the public key.
public static  KeyFactorygetInstance(String algorithm)
     Generates a KeyFactory object that implements the specified algorithm.


Constructor Detail
KeyFactory
KeyFactory()(Code)
Creates a KeyFactory object.




Method Detail
generatePublic
final public PublicKey generatePublic(KeySpec keySpec) throws InvalidKeySpecException(Code)
Generates a public key object from the provided key specification (key material).
Parameters:
  keySpec - the specification (key material) of the public key. the public key.
exception:
  InvalidKeySpecException - if the given key specificationis inappropriate for this key factory to produce a public key.



getInstance
public static KeyFactory getInstance(String algorithm) throws NoSuchAlgorithmException(Code)
Generates a KeyFactory object that implements the specified algorithm.
Parameters:
  algorithm - the name of the requested key algorithm. See Appendix A in the Java Cryptography Architecture API Specification & Reference for information about standard algorithm names. a KeyFactory object for the specified algorithm.
exception:
  NoSuchAlgorithmException - if the requested algorithm isnot available



Methods inherited from java.lang.Object
public boolean equals(Object obj)(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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