com.ibm.xml.crypto.dsig.dom
Class XMLSignatureImpl.SignatureValueImpl

java.lang.Object
  com.ibm.xml.crypto.dsig.dom.XMLStructureImpl
      com.ibm.xml.crypto.dsig.dom.XMLSignatureImpl.SignatureValueImpl

All Implemented Interfaces:

XMLSignature.SignatureValue, XMLStructure

Enclosing class:

XMLSignatureImpl

static class XMLSignatureImpl.SignatureValueImpl
extends XMLStructureImpl
implements XMLSignature.SignatureValue

Field Summary

(package private) XMLSignatureImpl

parent

Fields inherited from class com.ibm.xml.crypto.dsig.dom.XMLStructureImpl

afactory

Constructor Summary

XMLSignatureImpl.SignatureValueImpl(AlgorithmFactory f, XMLSignatureImpl xsig)

Method Summary

java.lang.String	getId() Returns the optional Id attribute of this SignatureValue, which permits this element to be referenced from elsewhere.
byte[]	getValue() Returns the signature value of this SignatureValue.
boolean	validate(XMLValidateContext vcontext) Validates the signature value.

Methods inherited from class com.ibm.xml.crypto.dsig.dom.XMLStructureImpl

isFeatureSupported

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.xml.crypto.XMLStructure

isFeatureSupported

Field Detail

parent

XMLSignatureImpl parent

Constructor Detail

XMLSignatureImpl.SignatureValueImpl

XMLSignatureImpl.SignatureValueImpl(AlgorithmFactory f,
                                    XMLSignatureImpl xsig)

Method Detail

getId

public java.lang.String getId()

Description copied from interface: XMLSignature.SignatureValue

Returns the optional Id attribute of this SignatureValue, which permits this element to be referenced from elsewhere.

Specified by:

getId in interface XMLSignature.SignatureValue

Returns:

the Id attribute (may be null if not specified)

getValue

public byte[] getValue()

Description copied from interface: XMLSignature.SignatureValue

Returns the signature value of this SignatureValue.

Specified by:

getValue in interface XMLSignature.SignatureValue

Returns:

the signature value (may be null if the XMLSignature has not been signed yet). Each invocation of this method returns a new clone of the array to prevent subsequent modification.

validate

public boolean validate(XMLValidateContext vcontext)
                 throws XMLSignatureException

Description copied from interface: XMLSignature.SignatureValue

Validates the signature value. This method performs a cryptographic validation of the signature calculated over the SignedInfo of the XMLSignature.

This method only validates the signature the first time it is invoked. On subsequent invocations, it returns a cached result.

Specified by:

validate in interface XMLSignature.SignatureValue

Parameters:

vcontext - the validating context

Returns:

true if the signature was validated successfully; false otherwise

Throws:

XMLSignatureException - if an unexpected exception occurs while validating the signature