Package eu.europa.esig.dss.cades.evidencerecord

Class CAdESEmbeddedEvidenceRecordHelper

java.lang.Object

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

eu.europa.esig.dss.cades.evidencerecord.CAdESEmbeddedEvidenceRecordHelper

All Implemented Interfaces:

EmbeddedEvidenceRecordHelper

public class CAdESEmbeddedEvidenceRecordHelper
extends AbstractEmbeddedEvidenceRecordHelper

This class contains common methods for validation of a CAdES embedded evidence record

Field Summary

Fields inherited from class eu.europa.esig.dss.spi.validation.evidencerecord.AbstractEmbeddedEvidenceRecordHelper

evidenceRecordAttribute, signature

Constructor Summary

Constructors

Constructor	Description
CAdESEmbeddedEvidenceRecordHelper(CAdESSignature signature)	Constructor for an evidence record applied for the whole signature content (not yet embedded)
CAdESEmbeddedEvidenceRecordHelper(CAdESSignature signature, CAdESAttribute evidenceRecordAttribute)	Default constructor

Method Summary

Modifier and Type	Method	Description
protected DSSDocument	getDetachedDocument()	Gets the detached document covered by a detached CAdES
protected SignatureEvidenceRecordDigestBuilder	getDigestBuilder(AdvancedSignature signature, SignatureAttribute evidenceRecordAttribute, DigestAlgorithm digestAlgorithm)	Gets implementation of the signature digest builder for the given evidence record
boolean	isAbsentHashtreeSupported()	Gets whether the embedded evidence records without the reduced hashtree are supported by the current signature implementation.
boolean	isEncodingSelectionSupported()	Gets whether the selection of a target encoding is supported by the current implementation.
protected void	setDEREncoding(SignatureEvidenceRecordDigestBuilder digestBuilder, boolean derEncoded)	Sets the encoding to be used on the hash computation to the SignatureEvidenceRecordDigestBuilder whether applicable
void	setDetachedContents(List<DSSDocument> detachedContents)	Sets a list of documents used for validation of a detached signature

Methods inherited from class eu.europa.esig.dss.spi.validation.evidencerecord.AbstractEmbeddedEvidenceRecordHelper

getDetachedContents, getEvidenceRecordAttribute, getMasterSignature, getMasterSignatureDigest, getMasterSignatureDigest, getOrderOfAttribute, getOrderWithinAttribute, setOrderOfAttribute, setOrderWithinAttribute

Methods inherited from class java.lang.Object

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

Constructor Details

CAdESEmbeddedEvidenceRecordHelper

public CAdESEmbeddedEvidenceRecordHelper(CAdESSignature signature)

Constructor for an evidence record applied for the whole signature content (not yet embedded)

Parameters:

signature - CAdESSignature

CAdESEmbeddedEvidenceRecordHelper

public CAdESEmbeddedEvidenceRecordHelper(CAdESSignature signature,
 CAdESAttribute evidenceRecordAttribute)

Default constructor

Parameters:

signature - CAdESSignature

evidenceRecordAttribute - CAdESAttribute

Method Details

setDetachedContents

public void setDetachedContents(List<DSSDocument> detachedContents)

Description copied from class: AbstractEmbeddedEvidenceRecordHelper

Sets a list of documents used for validation of a detached signature

Overrides:

setDetachedContents in class AbstractEmbeddedEvidenceRecordHelper

Parameters:

detachedContents - list of DSSDocuments

getDigestBuilder

protected SignatureEvidenceRecordDigestBuilder getDigestBuilder(AdvancedSignature signature,
 SignatureAttribute evidenceRecordAttribute,
 DigestAlgorithm digestAlgorithm)

Description copied from class: AbstractEmbeddedEvidenceRecordHelper

Gets implementation of the signature digest builder for the given evidence record

Specified by:

getDigestBuilder in class AbstractEmbeddedEvidenceRecordHelper

Parameters:

signature - AdvancedSignature

evidenceRecordAttribute - SignatureAttribute

digestAlgorithm - DigestAlgorithm

Returns:

SignatureEvidenceRecordDigestBuilder

getDetachedDocument

protected DSSDocument getDetachedDocument()

Gets the detached document covered by a detached CAdES

Returns:

DSSDocument

setDEREncoding

protected void setDEREncoding(SignatureEvidenceRecordDigestBuilder digestBuilder,
 boolean derEncoded)

Description copied from class: AbstractEmbeddedEvidenceRecordHelper

Sets the encoding to be used on the hash computation to the SignatureEvidenceRecordDigestBuilder whether applicable

Specified by:

setDEREncoding in class AbstractEmbeddedEvidenceRecordHelper

Parameters:

digestBuilder - SignatureEvidenceRecordDigestBuilder

derEncoded - whether signature shall be DER encoded

isEncodingSelectionSupported

public boolean isEncodingSelectionSupported()

Description copied from interface: EmbeddedEvidenceRecordHelper

Gets whether the selection of a target encoding is supported by the current implementation. This method is used to resolve the interoperability issues between ETSI TS 119 122-3 and RFC 4998 embedded ERS, requiring hash computation in different ways.

Returns:

TRUE if the encoding selection is supported by the current implementation, FALSE otherwise

isAbsentHashtreeSupported

public boolean isAbsentHashtreeSupported()

Description copied from interface: EmbeddedEvidenceRecordHelper

Gets whether the embedded evidence records without the reduced hashtree are supported by the current signature implementation. This method resolves the difference on processing between CAdES (TS 119 122-3) and XAdES (TS 119 132-3) embedded evidence records, with the CAdES allowing omitted reduced hashtree, while XAdES requiring such.

Returns:

whether the absent reduced hashtree is supported by the current implementation