Package br.ufsc.labsec.signature.conformanceVerifier.pades.attributes

Class DocTimeStampAttribute

java.lang.Object

br.ufsc.labsec.signature.conformanceVerifier.cades.attributes.TimeStamp<Object>

br.ufsc.labsec.signature.conformanceVerifier.pades.attributes.DocTimeStampAttribute

All Implemented Interfaces:

SignatureAttribute<Object>, Comparable<TimeStamp<Object>>

public class DocTimeStampAttribute
extends TimeStamp<Object>

Esta classe representa o atributo de carimbo de tempo de uma assinatura PAdES.

Field Summary

Fields

Modifier and Type	Field	Description
static String	ERROR_READING_EXPECTED_VALUE
static String	IDENTIFIER
static String	INCORRECT_BYTE_RANGE
static String	INCORRECT_DICTIONARY_ENTRY
static String	MISSING_DICTIONARY_ENTRY

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

contentInfo

Constructor Summary

Constructors

Constructor	Description
DocTimeStampAttribute(PadesVerifier verifier, Integer index)	Construtor
DocTimeStampAttribute(PadesVerifier verifier, org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature docTimeStampDictionary, String vriHash)	Construtor

Method Summary

Modifier and Type	Method	Description
protected byte[]	getAttributeHash(String hashAlgorithmId)	Calcula o hash do atributo
Object	getEncoded()	Retorna o atributo codificado
String	getIdentifier()	Obtém o identificador do atributo
protected boolean	isAttributeHashValid(String hashAlgorithm, byte[] expected)
boolean	isSigned()	Informa se o atributo é assinado.
boolean	isUnique()	Verifica se o atributo deve ter apenas uma instância na assinatura
static boolean	signatureIsTimestamp(org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature signature)	Reconhece se o dicionário da PDSignature é de um DocTimeStamp
void	validate()	Valida o atributo de acordo com suas regras específicas (ver normas da RFC e do ETSI do respectivo tipo de assinatura para cada atributo).
void	validate(TimeStampReport report, boolean containsRefsTimestamp, boolean containsArchiveTimestamp)	Valida o atributo

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

See Also:

Constant Field Values

MISSING_DICTIONARY_ENTRY

public static final String MISSING_DICTIONARY_ENTRY

See Also:

Constant Field Values

INCORRECT_DICTIONARY_ENTRY

public static final String INCORRECT_DICTIONARY_ENTRY

See Also:

Constant Field Values

ERROR_READING_EXPECTED_VALUE

public static final String ERROR_READING_EXPECTED_VALUE

See Also:

Constant Field Values

INCORRECT_BYTE_RANGE

public static final String INCORRECT_BYTE_RANGE

Constructor Details

DocTimeStampAttribute

public DocTimeStampAttribute(PadesVerifier verifier,
Integer index)

Construtor

Parameters:

verifier - Verifier de assinatura PAdES

verifier - O carimbo de tempo

index - Índice do carimbo a ser verificado

DocTimeStampAttribute

public DocTimeStampAttribute(PadesVerifier verifier,
org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature docTimeStampDictionary,
String vriHash)

Construtor

Parameters:

verifier - Verifier de assinatura PAdES

docTimeStampDictionary - O carimbo de tempo

vriHash - Valor de resumo criptográfico do carimbo

Method Details

signatureIsTimestamp

public static boolean signatureIsTimestamp(org.apache.pdfbox.pdmodel.interactive.digitalsignature.PDSignature signature)

Reconhece se o dicionário da PDSignature é de um DocTimeStamp

validate

public void validate(TimeStampReport report,
boolean containsRefsTimestamp,
boolean containsArchiveTimestamp)
              throws SignatureAttributeException,
CertificateAttributeException

Valida o atributo

Specified by:

validate in class TimeStamp<Object>

Parameters:

report - O relatório de verificação do carimbo

Throws:

SignatureAttributeException

CertificateAttributeException

getAttributeHash

protected byte[] getAttributeHash(String hashAlgorithmId)
                           throws PbadException,
NoSuchAlgorithmException

Description copied from class: TimeStamp

Calcula o hash do atributo

Specified by:

getAttributeHash in class TimeStamp<Object>

Parameters:

hashAlgorithmId - O algoritmo utilizado

Returns:

O valor de hash do atributo

Throws:

PbadException - Exceção em caso de erro durante o cálculo

NoSuchAlgorithmException

isAttributeHashValid

protected boolean isAttributeHashValid(String hashAlgorithm,
byte[] expected)

Specified by:

isAttributeHashValid in class TimeStamp<Object>

getIdentifier

public String getIdentifier()

Description copied from class: TimeStamp

Obtém o identificador do atributo

Specified by:

getIdentifier in interface SignatureAttribute<Object>

Specified by:

getIdentifier in class TimeStamp<Object>

Returns:

O identificador do atributo

validate

public void validate()
              throws SignatureAttributeException,
PbadException,
IOException

Description copied from interface: SignatureAttribute

Valida o atributo de acordo com suas regras específicas (ver normas da RFC e do ETSI do respectivo tipo de assinatura para cada atributo).

Throws:

SignatureAttributeException

PbadException

IOException

getEncoded

public Object getEncoded()
                  throws SignatureAttributeException

Description copied from interface: SignatureAttribute

Retorna o atributo codificado

Returns:

O atributo no formato em que foi parametrizado a classe

Throws:

SignatureAttributeException

isSigned

public boolean isSigned()

Description copied from interface: SignatureAttribute

Informa se o atributo é assinado.

Returns:

Indica se o atributo é assinado

isUnique

public boolean isUnique()

Description copied from interface: SignatureAttribute

Verifica se o atributo deve ter apenas uma instância na assinatura

Returns:

Indica se o atributo deve ter apenas uma instância na assinatura