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

Class AbstractSignatureEvidenceRecordDigestBuilder

java.lang.Object

eu.europa.esig.dss.spi.validation.evidencerecord.AbstractSignatureEvidenceRecordDigestBuilder

All Implemented Interfaces:

SignatureEvidenceRecordDigestBuilder

Direct Known Subclasses:

CAdESEvidenceRecordDigestBuilder, XAdESEvidenceRecordDigestBuilder

public abstract class AbstractSignatureEvidenceRecordDigestBuilder
extends Object
implements SignatureEvidenceRecordDigestBuilder

Abstract implementation of the SignatureEvidenceRecordDigestGenerator

Field Summary

Fields

Modifier and Type	Field	Description
protected final DigestAlgorithm	digestAlgorithm	The digest algorithm to be used on hash computation.
protected boolean	parallelEvidenceRecord	Defines whether the new evidence-record shall be added to the last available evidence-record attribute, when present.
protected final DSSDocument	signatureDocument	Signature document to compute hash value for

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSignatureEvidenceRecordDigestBuilder(DSSDocument signatureDocument)	Default constructor to instantiate builder with a SHA-256 digest algorithm
protected	AbstractSignatureEvidenceRecordDigestBuilder(DSSDocument signatureDocument, DigestAlgorithm digestAlgorithm)	Constructor to instantiate builder with a custom digest algorithm

Method Summary

Modifier and Type	Method	Description
protected Digest	getDigest(DSSDocument document)	Returns digest of the given document
AbstractSignatureEvidenceRecordDigestBuilder	setParallelEvidenceRecord(boolean parallelEvidenceRecord)	Sets whether the message-imprint for an evidence record shall be computed as for a parallel evidence-record (i.e. to be incorporated within the latest evidence-record attribute, when available).

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.europa.esig.dss.spi.validation.evidencerecord.SignatureEvidenceRecordDigestBuilder

build

Field Details

signatureDocument

protected final DSSDocument signatureDocument

Signature document to compute hash value for

digestAlgorithm

protected final DigestAlgorithm digestAlgorithm

The digest algorithm to be used on hash computation. Default : DigestAlgorithm.SHA256

parallelEvidenceRecord

protected boolean parallelEvidenceRecord

Defines whether the new evidence-record shall be added to the last available evidence-record attribute, when present. Otherwise, the hash will be computed based on the whole document content (default behavior).

Constructor Details

AbstractSignatureEvidenceRecordDigestBuilder

protected AbstractSignatureEvidenceRecordDigestBuilder(DSSDocument signatureDocument)

Default constructor to instantiate builder with a SHA-256 digest algorithm

Parameters:

signatureDocument - DSSDocument to compute message-imprint for

AbstractSignatureEvidenceRecordDigestBuilder

protected AbstractSignatureEvidenceRecordDigestBuilder(DSSDocument signatureDocument,
 DigestAlgorithm digestAlgorithm)

Constructor to instantiate builder with a custom digest algorithm

Parameters:

signatureDocument - DSSDocument to compute message-imprint for

digestAlgorithm - DigestAlgorithm to be used

Method Details

setParallelEvidenceRecord

public AbstractSignatureEvidenceRecordDigestBuilder setParallelEvidenceRecord(boolean parallelEvidenceRecord)

Sets whether the message-imprint for an evidence record shall be computed as for a parallel evidence-record (i.e. to be incorporated within the latest evidence-record attribute, when available). Otherwise, will compute message-imprint based on the whole signature's content, including coverage of other existing evidence-record. Default : FALSE (computes digest based on the whole signature's content)

Parameters:

parallelEvidenceRecord - whether the message-imprint for an evidence record shall be computed as for a parallel evidence-record

Returns:

this builder

getDigest

protected Digest getDigest(DSSDocument document)

Returns digest of the given document

Parameters:

document - DSSDocument to compute digest for

Returns:

Digest