Package eu.europa.esig.dss.evidencerecord.xml.validation

Class XmlEvidenceRecordTimeStampSequenceVerifier

java.lang.Object

eu.europa.esig.dss.evidencerecord.common.validation.EvidenceRecordTimeStampSequenceVerifier

eu.europa.esig.dss.evidencerecord.xml.validation.XmlEvidenceRecordTimeStampSequenceVerifier

public class XmlEvidenceRecordTimeStampSequenceVerifier
extends EvidenceRecordTimeStampSequenceVerifier

Verifies ArchiveTimeStampSequence for an XML Evidence Record

Field Summary

Fields inherited from class eu.europa.esig.dss.evidencerecord.common.validation.EvidenceRecordTimeStampSequenceVerifier

evidenceRecord

Constructor Summary

Constructors

Constructor	Description
XmlEvidenceRecordTimeStampSequenceVerifier(XmlEvidenceRecord evidenceRecord)	Default constructor to instantiate an XML evidence record verifier

Method Summary

Modifier and Type	Method	Description
protected DSSMessageDigest	computeTimeStampHash(ArchiveTimeStampObject archiveTimeStamp)	Computes hash on archiveTimeStamp element provided the archiveTimeStampChain's attributes
protected DSSMessageDigest	computeTimeStampSequenceHash(ArchiveTimeStampChainObject archiveTimeStampChain)	Computes hash of current ArchiveTimeStampSequenceElement
protected String	getCanonicalizationMethod(ArchiveTimeStampChainObject archiveTimeStampChain)	Extracts a canonicalization method defined within XML ArchiveTimeStampChainObject
protected DataObjectDigestBuilder	getDataObjectDigestBuilder(DSSDocument document, ArchiveTimeStampChainObject archiveTimeStampChain)	Returns DataObjectDigestBuilder corresponding to the current implementation
protected XMLEvidenceRecordRenewalDigestBuilderHelper	getEvidenceRecordRenewalDigestBuilderHelper()	This method returns a helper class containing supporting methods for digest computation in relation to an ArchiveTimeStampChain
protected List<? extends DigestValueGroup>	getHashTree(List<? extends DigestValueGroup> originalHashTree, List<DSSDocument> detachedContents, ManifestFile manifestFile, ArchiveTimeStampChainObject archiveTimeStampChain, DSSMessageDigest lastTimeStampHash, DSSMessageDigest lastTimeStampSequenceHash)	This method returns a relevant HashTree, and created a "virtual" HashTree when a HashTree is omitted in the TimeStamp

Methods inherited from class eu.europa.esig.dss.evidencerecord.common.validation.EvidenceRecordTimeStampSequenceVerifier

checkHashTreeValidity, computeDigestValueGroupHash, getDocumentDigest, getLastTimeStampSequenceHashList, getMatchingDocument, getMatchingDocument, getMatchingManifestEntry, getReferenceValidations, validateArchiveDataObjects, validateArchiveTimeStampDigest, validateArchiveTimeStampSequenceDigest, verify

Methods inherited from class java.lang.Object

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

Constructor Details

XmlEvidenceRecordTimeStampSequenceVerifier

public XmlEvidenceRecordTimeStampSequenceVerifier(XmlEvidenceRecord evidenceRecord)

Default constructor to instantiate an XML evidence record verifier

Parameters:

evidenceRecord - XmlEvidenceRecord XML evidence record to be validated

Method Details

getDataObjectDigestBuilder

protected DataObjectDigestBuilder getDataObjectDigestBuilder(DSSDocument document,
 ArchiveTimeStampChainObject archiveTimeStampChain)

Description copied from class: EvidenceRecordTimeStampSequenceVerifier

Returns DataObjectDigestBuilder corresponding to the current implementation

Specified by:

getDataObjectDigestBuilder in class EvidenceRecordTimeStampSequenceVerifier

Parameters:

document - DSSDocument document to build digest for

archiveTimeStampChain - ArchiveTimeStampChainObject of the current hashtree

Returns:

DataObjectDigestBuilder

getCanonicalizationMethod

protected String getCanonicalizationMethod(ArchiveTimeStampChainObject archiveTimeStampChain)

Extracts a canonicalization method defined within XML ArchiveTimeStampChainObject

Parameters:

archiveTimeStampChain - ArchiveTimeStampChainObject to get canonicalization method definition from

Returns:

String canonicalization method

getHashTree

protected List<? extends DigestValueGroup> getHashTree(List<? extends DigestValueGroup> originalHashTree,
 List<DSSDocument> detachedContents,
 ManifestFile manifestFile,
 ArchiveTimeStampChainObject archiveTimeStampChain,
 DSSMessageDigest lastTimeStampHash,
 DSSMessageDigest lastTimeStampSequenceHash)

Description copied from class: EvidenceRecordTimeStampSequenceVerifier

This method returns a relevant HashTree, and created a "virtual" HashTree when a HashTree is omitted in the TimeStamp

Overrides:

getHashTree in class EvidenceRecordTimeStampSequenceVerifier

Parameters:

originalHashTree - a list of DigestValueGroup, representing an original HashTree extracted from a time-stamp token

detachedContents - a list of DSSDocuments, provided to the validation as a detached content

manifestFile - ManifestFile when present

archiveTimeStampChain - ArchiveTimeStampChainObject archive time-stamp chain containing the time-stamp

lastTimeStampHash - DSSMessageDigest digest of the previous archive-time-stamp, when applicable

lastTimeStampSequenceHash - DSSMessageDigest digest of the previous archive-time-stamp-sequence, when applicable

Returns:

a list of DigestValueGroup, representing a HashTree to be used for an archive-time-stamp validation

computeTimeStampHash

protected DSSMessageDigest computeTimeStampHash(ArchiveTimeStampObject archiveTimeStamp)

Description copied from class: EvidenceRecordTimeStampSequenceVerifier

Computes hash on archiveTimeStamp element provided the archiveTimeStampChain's attributes

Specified by:

computeTimeStampHash in class EvidenceRecordTimeStampSequenceVerifier

Parameters:

archiveTimeStamp - ArchiveTimeStampObject to compute hash on

Returns:

DSSMessageDigest

computeTimeStampSequenceHash

protected DSSMessageDigest computeTimeStampSequenceHash(ArchiveTimeStampChainObject archiveTimeStampChain)

Description copied from class: EvidenceRecordTimeStampSequenceVerifier

Computes hash of current ArchiveTimeStampSequenceElement

Specified by:

computeTimeStampSequenceHash in class EvidenceRecordTimeStampSequenceVerifier

Parameters:

archiveTimeStampChain - ArchiveTimeStampChainObject to compute hash for

Returns:

DSSMessageDigest

getEvidenceRecordRenewalDigestBuilderHelper

protected XMLEvidenceRecordRenewalDigestBuilderHelper getEvidenceRecordRenewalDigestBuilderHelper()

This method returns a helper class containing supporting methods for digest computation in relation to an ArchiveTimeStampChain

Returns:

XMLEvidenceRecordRenewalDigestBuilderHelper