iaik.xml.crypto.dsig

Class DigestMethodImpl

java.lang.Object

javax.xml.crypto.dom.DOMStructure

iaik.xml.crypto.dom.DOMStructure

iaik.xml.crypto.dsig.AlgorithmMethodImpl

iaik.xml.crypto.dsig.DigestMethodImpl

All Implemented Interfaces:

AlgorithmMethod, DigestMethod, XMLStructure

public class DigestMethodImpl
extends AlgorithmMethodImpl
implements DigestMethod

An implementation of the DigestMethod element that supports the DOM XML representation and processing mechanism.

Nested Class Summary

Nested classes/interfaces inherited from class iaik.xml.crypto.dom.DOMStructure

DOMStructure.NodeWrapper

Field Summary

Fields

Modifier and Type	Field and Description
protected MessageDigest	digest_ The MessageDigest.

Fields inherited from class iaik.xml.crypto.dsig.AlgorithmMethodImpl

algorithm_, params_, spec_

Fields inherited from class iaik.xml.crypto.dom.DOMStructure

implMap_, state_, STATE_CREATED, STATE_MARSHALED, STATE_UNINITIALIZED, STATE_UNMARSHALED

Fields inherited from interface javax.xml.crypto.dsig.DigestMethod

RIPEMD160, SHA1, SHA256, SHA512

Constructor Summary

Constructors

Constructor and Description
DigestMethodImpl(DOMCryptoContext context, Node node) Creates a new instance of this NewTransformImpl with the specified node to unmarshal from.
DigestMethodImpl(String algorithm, DigestMethodParameterSpec params) Creates a new instance of this NewTransformImpl.

Method Summary

Modifier and Type	Method and Description
byte[]	calculateDigestValue(InputStream message) Calculates the digest value.
protected void	getAlgorithmInstanceUncaught(XSecProvider.Purpose purpose)
String	getLocalName() Returns the local name of the represented XML element.
String	getNamespace() Returns the namespace URI of the represented XML element.
protected Class	getParameterSpecClass()

Methods inherited from class iaik.xml.crypto.dsig.AlgorithmMethodImpl

containsElements, getAlgorithm, getAlgorithmInstance, getParameterSpec, getParamInstanceUncaught, marshal, marshalAttributes, unmarshalAttributes, unmarshalStructures

Methods inherited from class iaik.xml.crypto.dom.DOMStructure

addBytesToElement, addBytesToElement, clearMarshalling, clearMarshalling, getBytesFromElement, getBytesFromElementStream, getChildStructures, getChildStructureVersion, getHere, getImplClass, getInstance, getInstance, getNode, getParentStructure, getParentStructureOf, getQualifiedName, getQualifiedName, hasNSDeclAttrInScope, isFeatureSupported, isNSDeclInScope, marshalElement, marshalIDAttribute, newIDforLookUp, putChildStructure, putImplClass, setBackToCompatibilityPrior1_14, setNode, setParentStructure, toString, unmarshal, unmarshalElement, unmarshalIDAttribute, wrapNode

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.xml.crypto.dsig.DigestMethod

getParameterSpec

Methods inherited from interface javax.xml.crypto.XMLStructure

isFeatureSupported

Methods inherited from interface javax.xml.crypto.AlgorithmMethod

getAlgorithm

Field Detail

digest_

protected MessageDigest digest_

The MessageDigest.

Constructor Detail

DigestMethodImpl

public DigestMethodImpl(String algorithm,
                        DigestMethodParameterSpec params)
                 throws NoSuchAlgorithmException,
                        InvalidAlgorithmParameterException

Creates a new instance of this NewTransformImpl.

Throws:

NoSuchAlgorithmException

InvalidAlgorithmParameterException

DigestMethodImpl

public DigestMethodImpl(DOMCryptoContext context,
                        Node node)
                 throws MarshalException

Creates a new instance of this NewTransformImpl with the specified node to unmarshal from.

Parameters:

node - the node to unmarshal from

Throws:

MarshalException - if an exception occurs during unmarshaling

Method Detail

getAlgorithmInstanceUncaught

protected void getAlgorithmInstanceUncaught(XSecProvider.Purpose purpose)
                                     throws NoSuchAlgorithmException

Specified by:

getAlgorithmInstanceUncaught in class AlgorithmMethodImpl

Throws:

NoSuchAlgorithmException

getLocalName

public String getLocalName()

Description copied from class: DOMStructure

Returns the local name of the represented XML element.

Specified by:

getLocalName in class DOMStructure

Returns:

the local name of the represented XML element

See Also:

DOMStructure.getLocalName()

getNamespace

public String getNamespace()

Description copied from class: DOMStructure

Returns the namespace URI of the represented XML element.

Specified by:

getNamespace in class DOMStructure

Returns:

the namespace URI of the represented XML element

See Also:

DOMStructure.getNamespace()

calculateDigestValue

public byte[] calculateDigestValue(InputStream message)
                            throws IOException

Calculates the digest value.

Parameters:

message - the message to digest

Returns:

the raw digest value

Throws:

IOException - if reading from message fails

getParameterSpecClass

protected Class getParameterSpecClass()

Specified by:

getParameterSpecClass in class AlgorithmMethodImpl

Returns:

the Class of the concrete parameter spec to be returned by AlgorithmMethodImpl.getParameterSpec().

Since:

1.17

See Also:

AlgorithmMethodImpl.getParameterSpecClass()