How to use

toASN1Primitive

method

in

eu.europa.ec.markt.dss.DSSASN1Utils

/**
 * This method checks if a given {@code DEROctetString} is null.
 *
 * @param derOctetString
 * @return
 */
public static boolean isDEROctetStringNull(final DEROctetString derOctetString) {
  final byte[] derOctetStringBytes = derOctetString.getOctets();
  final ASN1Primitive asn1Null = DSSASN1Utils.toASN1Primitive(derOctetStringBytes);
  return DERNull.INSTANCE.equals(asn1Null);
}

/**
 * Indicates if this certificate has an CRL extension expiredCertOnCRL.
 *
 * @return
 */
public boolean hasExpiredCertOnCRLExtension() {
  final byte[] extensionValue = x509Certificate.getExtensionValue(OID.id_ce_expiredCertsOnCRL.getId());
  if (extensionValue != null) {
    try {
      final ASN1Primitive derObject = DSSASN1Utils.toASN1Primitive(extensionValue);
      if (derObject instanceof DEROctetString) {
        final boolean derOctetStringNull = DSSASN1Utils.isDEROctetStringNull((DEROctetString) derObject);
        return derOctetStringNull;
      }
    } catch (Exception e) {
      LOG.debug("Exception when processing 'id_ce_expiredCertsOnCRL'", e);
    }
  }
  return false;
}

@Override
public byte[] getBytes() throws DSSException {
  try {
    final ByteArrayOutputStream output = new ByteArrayOutputStream();
    final DEROutputStream derOutputStream = new DEROutputStream(output);
    final byte[] encoded = signedData.getEncoded();
    final ASN1Primitive asn1Primitive = DSSASN1Utils.toASN1Primitive(encoded);
    derOutputStream.writeObject(asn1Primitive);
    derOutputStream.close();
    return output.toByteArray();
  } catch (IOException e) {
    throw new DSSException(e);
  }
}

/**
 * Indicates if the revocation data should be checked for an OCSP signing certificate.<br>
 * http://www.ietf.org/rfc/rfc2560.txt?number=2560<br>
 * A CA may specify that an OCSP client can trust a responder for the lifetime of the responder's certificate. The CA
 * does so by including the extension id-pkix-ocsp-nocheck. This SHOULD be a non-critical extension. The value of the
 * extension should be NULL.
 *
 * @return
 */
public boolean hasIdPkixOcspNoCheckExtension() {
  final byte[] extensionValue = x509Certificate.getExtensionValue(OID.id_pkix_ocsp_no_check.getId());
  if (extensionValue != null) {
    try {
      final ASN1Primitive derObject = DSSASN1Utils.toASN1Primitive(extensionValue);
      if (derObject instanceof DEROctetString) {
        final boolean derOctetStringNull = DSSASN1Utils.isDEROctetStringNull((DEROctetString) derObject);
        return derOctetStringNull;
      }
    } catch (Exception e) {
      LOG.debug("Exception when processing 'id_pkix_ocsp_no_check'", e);
    }
  }
  return false;
}

  /**
   * @param signerInformation {@code SignerInformation}
   * @return {@code DERTaggedObject} representing the signed attributes
   * @throws DSSException in case of a decoding problem
   */
  public static DERTaggedObject getSignedAttributes(final SignerInformation signerInformation) throws DSSException {

    try {
      final byte[] encodedSignedAttributes = signerInformation.getEncodedSignedAttributes();
      if (encodedSignedAttributes == null) {
        return null;
      }
      final ASN1Set asn1Set = DSSASN1Utils.toASN1Primitive(encodedSignedAttributes);
      return new DERTaggedObject(false, 0, asn1Set);
    } catch (IOException e) {
      throw new DSSException(e);
    }
  }
}

for (final TimestampToken contentTimestamp : contentTimestamps) {
  final ASN1Object asn1Object = DSSASN1Utils.toASN1Primitive(contentTimestamp.getEncoded());
  final DERSet attrValues = new DERSet(asn1Object);
  final Attribute attribute = new Attribute(id_aa_ets_contentTimestamp, attrValues);

  return DSSASN1Utils.toASN1Primitive(newTimeStampTokenBytes);
} catch (IOException e) {
  throw new DSSException(e);

for (final OCSPToken ocspToken : revocationDataForInclusion.ocspTokens) {
  final BasicOCSPResp basicOCSPResp = ocspToken.getBasicOCSPResp();
  newOtherRevocationInfoFormatStore.add(DSSASN1Utils.toASN1Primitive(DSSUtils.getEncoded(basicOCSPResp)));

final ASN1Sequence asn1Sequence = DSSASN1Utils.toASN1Primitive(policyBytes);
final ASN1Sequence signPolicyHashAlgObject = (ASN1Sequence) asn1Sequence.getObjectAt(0);
final AlgorithmIdentifier signPolicyHashAlgIdentifier = AlgorithmIdentifier.getInstance(signPolicyHashAlgObject);