Package eu.europa.esig.dss.cades.signature

Class CadesLevelBaselineLTATimestampExtractor

java.lang.Object

eu.europa.esig.dss.cades.signature.CadesLevelBaselineLTATimestampExtractor

public class CadesLevelBaselineLTATimestampExtractor
extends Object

Extracts the necessary information to compute the CAdES Archive Timestamp V3.

Constructor Summary

Constructors

Constructor	Description
CadesLevelBaselineLTATimestampExtractor(CAdESSignature cadesSignature)	This is the default constructor for the CadesLevelBaselineLTATimestampExtractor.
CadesLevelBaselineLTATimestampExtractor(org.bouncycastle.cms.CMSSignedData cmsSignedData, Collection<CertificateToken> signatureCertificates, Collection<CertificateToken> timestampCertificates)

Method Summary

Modifier and Type	Method	Description
byte[]	getArchiveTimestampDataV3(org.bouncycastle.cms.SignerInformation signerInformation, org.bouncycastle.asn1.cms.Attribute atsHashIndexAttribute, byte[] originalDocumentDigest)
org.bouncycastle.asn1.cms.Attribute	getAtsHashIndex(org.bouncycastle.cms.SignerInformation signerInformation, DigestAlgorithm hashIndexDigestAlgorithm)	The ats-hash-index unsigned attribute provides an unambiguous imprint of the essential components of a CAdES signature for use in the archive time-stamp (see 6.4.3).
org.bouncycastle.asn1.cms.Attribute	getVerifiedAtsHashIndex(org.bouncycastle.cms.SignerInformation signerInformation, TimestampToken timestampToken)	get the atsHash index for verification of the provided token.

Methods inherited from class java.lang.Object

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

Constructor Detail

CadesLevelBaselineLTATimestampExtractor

public CadesLevelBaselineLTATimestampExtractor(CAdESSignature cadesSignature)

This is the default constructor for the CadesLevelBaselineLTATimestampExtractor.

Parameters:

cadesSignature - CAdESSignature related to the archive timestamp

CadesLevelBaselineLTATimestampExtractor

public CadesLevelBaselineLTATimestampExtractor(org.bouncycastle.cms.CMSSignedData cmsSignedData,
                                               Collection<CertificateToken> signatureCertificates,
                                               Collection<CertificateToken> timestampCertificates)

Method Detail

getAtsHashIndex

public org.bouncycastle.asn1.cms.Attribute getAtsHashIndex(org.bouncycastle.cms.SignerInformation signerInformation,
                                                           DigestAlgorithm hashIndexDigestAlgorithm)

The ats-hash-index unsigned attribute provides an unambiguous imprint of the essential components of a CAdES signature for use in the archive time-stamp (see 6.4.3). These essential components are elements of the following ASN.1 SET OF structures: unsignedAttrs, SignedData.certificates, and SignedData.crls. The ats-hash-index attribute value has the ASN.1 syntax ATSHashIndex: ATSHashIndex ::= SEQUENCE { hashIndAlgorithm AlgorithmIdentifier DEFAULT {algorithm id-sha256}, certificatesHashIndex SEQUENCE OF OCTET STRING, crlsHashIndex SEQUENCE OF OCTET STRING,

Parameters:

signerInformation -

Returns:

getVerifiedAtsHashIndex

public org.bouncycastle.asn1.cms.Attribute getVerifiedAtsHashIndex(org.bouncycastle.cms.SignerInformation signerInformation,
                                                                   TimestampToken timestampToken)

get the atsHash index for verification of the provided token.

Parameters:

signerInformation -

timestampToken -

Returns:

getArchiveTimestampDataV3

public byte[] getArchiveTimestampDataV3(org.bouncycastle.cms.SignerInformation signerInformation,
                                        org.bouncycastle.asn1.cms.Attribute atsHashIndexAttribute,
                                        byte[] originalDocumentDigest)