Package xades4j.providers.impl

Class DefaultMessageDigestProvider

java.lang.Object

xades4j.providers.impl.DefaultMessageDigestProvider

All Implemented Interfaces:

MessageDigestEngineProvider

public class DefaultMessageDigestProvider
extends Object
implements MessageDigestEngineProvider

The default implementation of MessageDigestEngineProvider. It supports Apache Santuario available algorithms

Author:

Luís

Constructor Summary

Constructors

Constructor	Description
DefaultMessageDigestProvider()	Initializes a new instance that will get MessageDigests without specifying a JCE provider.
DefaultMessageDigestProvider(String messageDigestProvider)	Initializes a new instance that will use the specified JCE provider to get MessageDigest instances.

Method Summary

Modifier and Type	Method	Description
MessageDigest	getEngine(String digestAlgorithmURI)	Gets a MessageDigest engine for the algorithm identified by the given URI.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultMessageDigestProvider

public DefaultMessageDigestProvider(String messageDigestProvider)
                             throws NoSuchProviderException

Initializes a new instance that will use the specified JCE provider to get MessageDigest instances.

Parameters:

messageDigestProvider - the JCE provider for MessageDigest

Throws:

NoSuchProviderException - if the JCE provider is not installed

DefaultMessageDigestProvider

public DefaultMessageDigestProvider()

Initializes a new instance that will get MessageDigests without specifying a JCE provider.

Method Details

getEngine

public MessageDigest getEngine(String digestAlgorithmURI)
                        throws UnsupportedAlgorithmException

Description copied from interface: MessageDigestEngineProvider

Gets a MessageDigest engine for the algorithm identified by the given URI. The URIs defined in the XML-DSIG specification are used.

Specified by:

getEngine in interface MessageDigestEngineProvider

Parameters:

digestAlgorithmURI - the URI of the digest algorithm

Returns:

the message digest engine

Throws:

UnsupportedAlgorithmException - if the current provider doesn't support the specified algorithm URI or there is no provider in the platform for the corresponding algorithm name