Package br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.unsigned

Class IdAaEtsEscTimeStamp

java.lang.Object

br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.TimeStamp<org.bouncycastle.asn1.cms.Attribute>

br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.unsigned.TimeStampToken

br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.unsigned.IdAaEtsEscTimeStamp

All Implemented Interfaces:

SignatureAttribute<org.bouncycastle.asn1.cms.Attribute>, Comparable<TimeStamp<org.bouncycastle.asn1.cms.Attribute>>

public class IdAaEtsEscTimeStamp
extends TimeStampToken

Repesenta o carimbo de tempo sobre as referências no formato CAdES.

Oid e esquema do atributo id-aa-ets-escTimeStamp retirado do documento ETSI TS 101 733 V1.8.1:

 id-aa-ets-escTimeStamp OBJECT IDENTIFIER ::= { iso(1) member-body(2)
 us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) id-aa(2) 25}

 ESCTimeStampToken ::= TimeStampToken
 

Field Summary

Fields

Modifier and Type	Field	Description
static String	IDENTIFIER

Fields inherited from class br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.unsigned.TimeStampToken

FAILURE_TO_VALIDATE_TIMESTAMP, INVALID_ASYMMETRIC_CIPHER_ERROR, INVALID_TIMESTAMP_ERROR, signatureVerifier

Fields inherited from class br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.TimeStamp

contentInfo

Constructor Summary

Constructors

Constructor	Description
IdAaEtsEscTimeStamp(AbstractVerifier verifier, Integer index)	Deve-se utilizar este construtor no momento de validação do atributo.
IdAaEtsEscTimeStamp(org.bouncycastle.asn1.cms.Attribute genericEncoding)	Constrói um objeto IdAaEtsEscTimeStamp
IdAaEtsEscTimeStamp(org.bouncycastle.asn1.cms.ContentInfo contentInfo)	Constrói um objeto IdAaEtsEscTimeStamp a partir de um ContentInfo.

Method Summary

Modifier and Type	Method	Description
protected byte[]	getAttributeHash(String identifier, boolean hashWithoutTag)	Calcula o hash do atributo
String	getIdentifier()	Retorna o identificador do atributo
protected boolean	isAttributeHashValid(String identifier, boolean hashWithoutTag, byte[] expected)
protected TimeStampVerifier	makeTimeStampVerifier(org.bouncycastle.tsp.TimeStampToken timeStamp, boolean containsRefsTimestamp, boolean containsArchiveTimestamp)	Obtém um TimeStampVerifier.

Methods inherited from class br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.unsigned.TimeStampToken

createSignerInformationVerifier, getArchiveTimeStampContentInfo, getAttributeHash, getEncoded, isAnyAttributeHashValid, isAttributeHashValid, isSigned, isUnique, validate, validate

Methods inherited from class br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.TimeStamp

addUnsignedAttribute, buildTimeStampToken, compareTo, contentInfoToSignatureContainer, getAttributeList, getContentInfo, getEncodedAttribute, getEncodedAttribute, getTimeReference, removeUnsignedAttribute, replaceUnsignedAttribute

Methods inherited from class java.lang.Object

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

Field Details

IDENTIFIER

public static final String IDENTIFIER

Constructor Details

IdAaEtsEscTimeStamp

public IdAaEtsEscTimeStamp(org.bouncycastle.asn1.cms.ContentInfo contentInfo)
                    throws SignatureAttributeException

Constrói um objeto IdAaEtsEscTimeStamp a partir de um ContentInfo.

Parameters:

contentInfo - O conteúdo do carimbo do tempo

Throws:

SignatureAttributeException

IdAaEtsEscTimeStamp

public IdAaEtsEscTimeStamp(AbstractVerifier verifier,
Integer index)
                    throws SignatureAttributeException

Deve-se utilizar este construtor no momento de validação do atributo. O parâmetro index deve ser usado no caso em que há mais de um atributo do mesmo tipo. Caso contrário, ele deve ser zero.

Parameters:

verifier - Usado para criar e verificar o atributo

index - Índice usado para selecionar o atributo

Throws:

SignatureAttributeException

IdAaEtsEscTimeStamp

public IdAaEtsEscTimeStamp(org.bouncycastle.asn1.cms.Attribute genericEncoding)
                    throws SignatureAttributeException

Constrói um objeto IdAaEtsEscTimeStamp

Parameters:

genericEncoding - O atributo codificado

Throws:

SignatureAttributeException

Method Details

getIdentifier

public String getIdentifier()

Retorna o identificador do atributo

Specified by:

getIdentifier in interface SignatureAttribute<org.bouncycastle.asn1.cms.Attribute>

Specified by:

getIdentifier in class TimeStamp<org.bouncycastle.asn1.cms.Attribute>

Returns:

O identificador do atributo

getAttributeHash

protected byte[] getAttributeHash(String identifier,
boolean hashWithoutTag)
                           throws PbadException,
NoSuchAlgorithmException

Description copied from class: TimeStampToken

Calcula o hash do atributo

Specified by:

getAttributeHash in class TimeStampToken

Parameters:

identifier - O algoritmo utilizado

hashWithoutTag - Indica a forma de cálculo da hash, de acordo com as notas 2 e 3 da pagina 109 do ETSI TS 101 733 V2.2.1. Se verdadeiro indica que o calculo é feito sem incluir tag e length.

Returns:

O valor de hash do atributo

Throws:

PbadException - Exceção em caso de erro durante o cálculo

NoSuchAlgorithmException

isAttributeHashValid

protected boolean isAttributeHashValid(String identifier,
boolean hashWithoutTag,
byte[] expected)

Specified by:

isAttributeHashValid in class TimeStampToken

makeTimeStampVerifier

protected TimeStampVerifier makeTimeStampVerifier(org.bouncycastle.tsp.TimeStampToken timeStamp,
boolean containsRefsTimestamp,
boolean containsArchiveTimestamp)

Obtém um TimeStampVerifier.

Overrides:

makeTimeStampVerifier in class TimeStampToken

Returns:

O objeto TimeStampVerifier criado