Store certs = new JcaCertStore(Collections.singleton(cert));
gen.addSignerInfoGenerator(new JcaSignerInfoGeneratorBuilder(
new JcaDigestCalculatorProviderBuilder().build()).build(
sha1Signer, cert));
gen.addCertificates(certs);
CMSTypedData msg = new CMSAbsentContent();
CMSSignedData sigData = gen.generate(msg, false);
params.add(new Object[] { new GetCert(transId, senderNonce, iasn) });
params.add(new Object[] { new GetCertInitial(transId, senderNonce, ias) });
params.add(new Object[] { new GetCrl(transId, senderNonce, iasn) });