org.demoiselle.signer.policy.impl.cades.pkcs7.attribute.impl

Class EscTimeStamp

java.lang.Object

org.demoiselle.signer.policy.impl.cades.pkcs7.attribute.impl.EscTimeStamp

All Implemented Interfaces:

SignedOrUnsignedAttribute, UnsignedAttribute

public class EscTimeStamp
extends Object
implements UnsignedAttribute

This attribute is used for the Type 1 X-Time-Stamped validation data. The ES-C Time-Stamp attribute is an unsigned attribute. It is time-stamp of a hash of the electronic signature and the complete validation data (ES-C). It is a special purpose TimeStampToken Attribute which time-stamps the ES-C. Several instances instance of this attribute may occur with an electronic signature from different TSAs.

The following object identifier identifies the ES-C Time-Stamp attribute:

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}

The ES-C time-stamp attribute value has the ASN.1 syntax ESCTimeStampToken.

ESCTimeStampToken ::= TimeStampToken

The value of messageImprint field within TimeStampToken must be a hash of the concatenated values (without the type or length encoding for that value) of the following data objects as present in the ES with Complete validation data (ES-C):

signature field within SignerInfo; SignatureTimeStampToken attribute; CompleteCertificateRefs attribute; CompleteRevocationRefs attribute.

OCTETSTRING do campo signature do objeto SignerInfo e o valor dos atributos SignatureTimeStamp, CompleteCertificateReferences e CompleteRevocationReferences.

Constructor Summary

Constructors

Constructor and Description
EscTimeStamp()

Method Summary

Modifier and Type	Method and Description
String	getOID() OID value of the attribute.
org.bouncycastle.asn1.cms.Attribute	getValue() Represents the value of the attribute itself.
void	initialize(PrivateKey privateKey, Certificate[] certificates, byte[] content, SignaturePolicy signaturePolicy, byte[] hash) Performs the initial parameterization for attribute retrieval

Methods inherited from class java.lang.Object

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

Constructor Detail

EscTimeStamp

public EscTimeStamp()

Method Detail

initialize

public void initialize(PrivateKey privateKey,
                       Certificate[] certificates,
                       byte[] content,
                       SignaturePolicy signaturePolicy,
                       byte[] hash)

Description copied from interface: SignedOrUnsignedAttribute

Performs the initial parameterization for attribute retrieval

Specified by:

initialize in interface SignedOrUnsignedAttribute

Parameters:

privateKey - private key

certificates - certificate chain

content - set null if signing only hash

signaturePolicy - signature policy

hash - set null if signing content

getOID

public String getOID()

Description copied from interface: SignedOrUnsignedAttribute

OID value of the attribute. Ex: "1.12.2.54.94"

Specified by:

getOID in interface SignedOrUnsignedAttribute

Returns:

OID of attribute

getValue

public org.bouncycastle.asn1.cms.Attribute getValue()
                                             throws SignerException

Description copied from interface: SignedOrUnsignedAttribute

Represents the value of the attribute itself.

Specified by:

getValue in interface SignedOrUnsignedAttribute

Returns:

Attribute value

Throws:

SignerException