package org.bouncycastle.sasn1.cms;
import org.bouncycastle.sasn1.Asn1Integer;
import org.bouncycastle.sasn1.Asn1Object;
import org.bouncycastle.sasn1.Asn1Sequence;
import org.bouncycastle.sasn1.Asn1Set;
import org.bouncycastle.sasn1.Asn1TaggedObject;
import org.bouncycastle.sasn1.BerTag;
import java.io.IOException;
/**
* <pre>
* SignedData ::= SEQUENCE {
* version CMSVersion,
* digestAlgorithms DigestAlgorithmIdentifiers,
* encapContentInfo EncapsulatedContentInfo,
* certificates [0] IMPLICIT CertificateSet OPTIONAL,
* crls [1] IMPLICIT CertificateRevocationLists OPTIONAL,
* signerInfos SignerInfos
* }
* </pre>
* @deprecated use corresponding class in org.bouncycastle.asn1.cms
*/
public class SignedDataParser
{
private Asn1Sequence _seq;
private Asn1Integer _version;
private Asn1Object _nextObject;
private boolean _certsCalled;
private boolean _crlsCalled;
public SignedDataParser(
Asn1Sequence seq)
throws IOException
{
this._seq = seq;
this._version = (Asn1Integer)seq.readObject();
}
public Asn1Integer getVersion()
{
return _version;
}
public Asn1Set getDigestAlgorithms()
throws IOException
{
return (Asn1Set)_seq.readObject();
}
public ContentInfoParser getEncapContentInfo()
throws IOException
{
return new ContentInfoParser((Asn1Sequence)_seq.readObject());
}
public Asn1Set getCertificates()
throws IOException
{
_certsCalled = true;
_nextObject = _seq.readObject();
if (_nextObject instanceof Asn1TaggedObject && ((Asn1TaggedObject)_nextObject).getTagNumber() == 0)
{
Asn1Set certs = (Asn1Set)((Asn1TaggedObject)_nextObject).getObject(BerTag.SET, false);
_nextObject = null;
return certs;
}
return null;
}
public Asn1Set getCrls()
throws IOException
{
if (!_certsCalled)
{
throw new IOException("getCerts() has not been called.");
}
_crlsCalled = true;
if (_nextObject == null)
{
_nextObject = _seq.readObject();
}
if (_nextObject instanceof Asn1TaggedObject && ((Asn1TaggedObject)_nextObject).getTagNumber() == 1)
{
Asn1Set crls = (Asn1Set)((Asn1TaggedObject)_nextObject).getObject(BerTag.SET, false);
_nextObject = null;
return crls;
}
return null;
}
public Asn1Set getSignerInfos()
throws IOException
{
if (!_certsCalled || !_crlsCalled)
{
throw new IOException("getCerts() and/or getCrls() has not been called.");
}
if (_nextObject == null)
{
_nextObject = _seq.readObject();
}
return (Asn1Set)_nextObject;
}
}
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