javax.crypto
Class IaikSecurity

java.lang.Object
  |
  +--javax.crypto.IaikSecurity

public class IaikSecurity

extends java.lang.Object

This class handles Security providers, algorithm names, aliases, and so on. Once a IiakSecurity object is created, the getImplementation method is called for searching for a provider specific implemetation of the requested cryptographic object. If, for instance, a DES cipher implementation of the IAIK provider would be requested the following program sequence will be performed:

 IaikSecurity iaik = new IaikSecurity("DES", "Cipher", "IAIK");
 CipherSpi cipher_spi = (CipherSpi)iaik.getImplementation();
 

Constructor Summary

IaikSecurity(java.lang.String algorithm, java.lang.String type, java.lang.String provider)
Creates an IaikSecurity object to search for a algorithm of the given type, implemented by the given provider.

Method Summary

java.lang.Object	getImplementation() Tries to find an implemenation for a specific algorithm.
Provider	getProvider() Returns the provider implementing the actual algorithm

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IaikSecurity

public IaikSecurity(java.lang.String algorithm,
                    java.lang.String type,
                    java.lang.String provider)

Creates an IaikSecurity object to search for a algorithm of the given type, implemented by the given provider.

Parameters:

algorithm - the name of the algorithm (or an alias)

type - the type of the algorithm e.g. Cipher

provider - the desired provider or null if any provider is appropriate

Method Detail

getImplementation

public java.lang.Object getImplementation()
                                   throws NoSuchAlgorithmException,
                                          NoSuchProviderException

Tries to find an implemenation for a specific algorithm.

Returns:

an array of Object where Object[0] is the implementation of the algorithm and Object[1] is the Provider

Throws:

NoSuchAlgorithmException - if no provider implements the algorithm

NoSuchProviderException - if the provider does not exist

getProvider

public Provider getProvider()

Returns the provider implementing the actual algorithm

Returns:

the provider