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using System;
using System.Collections;
using System.IO;
using System.Text;
using NUnit.Framework;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.Oiw;
using Org.BouncyCastle.Cms;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
using Org.BouncyCastle.Utilities.IO;
using Org.BouncyCastle.Utilities.Test;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.X509.Store;
namespace Org.BouncyCastle.Cms.Tests
{
[TestFixture]
public class MiscDataStreamTest
{
private const string TestMessage = "Hello World!";
private const string SignDN = "O=Bouncy Castle, C=AU";
private static AsymmetricCipherKeyPair signKP;
private static X509Certificate signCert;
private const string OrigDN = "CN=Bob, OU=Sales, O=Bouncy Castle, C=AU";
private static AsymmetricCipherKeyPair origKP;
private static X509Certificate origCert;
private const string ReciDN = "CN=Doug, OU=Sales, O=Bouncy Castle, C=AU";
// private static AsymmetricCipherKeyPair reciKP;
// private static X509Certificate reciCert;
private static AsymmetricCipherKeyPair origDsaKP;
private static X509Certificate origDsaCert;
private static X509Crl signCrl;
private static X509Crl origCrl;
private static AsymmetricCipherKeyPair SignKP
{
get { return signKP == null ? (signKP = CmsTestUtil.MakeKeyPair()) : signKP; }
}
private static AsymmetricCipherKeyPair OrigKP
{
get { return origKP == null ? (origKP = CmsTestUtil.MakeKeyPair()) : origKP; }
}
// private static AsymmetricCipherKeyPair ReciKP
// {
// get { return reciKP == null ? (reciKP = CmsTestUtil.MakeKeyPair()) : reciKP; }
// }
private static AsymmetricCipherKeyPair OrigDsaKP
{
get { return origDsaKP == null ? (origDsaKP = CmsTestUtil.MakeDsaKeyPair()) : origDsaKP; }
}
private static X509Certificate SignCert
{
get { return signCert == null ? (signCert = CmsTestUtil.MakeCertificate(SignKP, SignDN, SignKP, SignDN)) : signCert; }
}
private static X509Certificate OrigCert
{
get { return origCert == null ? (origCert = CmsTestUtil.MakeCertificate(OrigKP, OrigDN, SignKP, SignDN)) : origCert; }
}
// private static X509Certificate ReciCert
// {
// get { return reciCert == null ? (reciCert = CmsTestUtil.MakeCertificate(ReciKP, ReciDN, SignKP, SignDN)) : reciCert; }
// }
private static X509Certificate OrigDsaCert
{
get { return origDsaCert == null ? (origDsaCert = CmsTestUtil.MakeCertificate(OrigDsaKP, OrigDN, SignKP, SignDN)) : origDsaCert; }
}
private static X509Crl SignCrl
{
get { return signCrl == null ? (signCrl = CmsTestUtil.MakeCrl(SignKP)) : signCrl; }
}
private static X509Crl OrigCrl
{
get { return origCrl == null ? (origCrl = CmsTestUtil.MakeCrl(OrigKP)) : origCrl; }
}
private void VerifySignatures(
CmsSignedDataParser sp,
byte[] contentDigest)
{
IX509Store certStore = sp.GetCertificates("Collection");
SignerInformationStore signers = sp.GetSignerInfos();
foreach (SignerInformation signer in signers.GetSigners())
{
ICollection certCollection = certStore.GetMatches(signer.SignerID);
IEnumerator certEnum = certCollection.GetEnumerator();
certEnum.MoveNext();
X509Certificate cert = (X509Certificate) certEnum.Current;
Assert.IsTrue(signer.Verify(cert));
if (contentDigest != null)
{
Assert.IsTrue(Arrays.AreEqual(contentDigest, signer.GetContentDigest()));
}
}
}
private void VerifySignatures(
CmsSignedDataParser sp)
{
VerifySignatures(sp, null);
}
private void VerifyEncodedData(
MemoryStream bOut)
{
CmsSignedDataParser sp = new CmsSignedDataParser(bOut.ToArray());
sp.GetSignedContent().Drain();
VerifySignatures(sp);
sp.Close();
}
private void CheckSigParseable(byte[] sig)
{
CmsSignedDataParser sp = new CmsSignedDataParser(sig);
sp.Version.ToString();
CmsTypedStream sc = sp.GetSignedContent();
if (sc != null)
{
sc.Drain();
}
sp.GetAttributeCertificates("Collection");
sp.GetCertificates("Collection");
sp.GetCrls("Collection");
sp.GetSignerInfos();
sp.Close();
}
[Test]
public void TestSha1WithRsa()
{
IList certList = new ArrayList();
IList crlList = new ArrayList();
MemoryStream bOut = new MemoryStream();
certList.Add(OrigCert);
certList.Add(SignCert);
crlList.Add(SignCrl);
crlList.Add(OrigCrl);
IX509Store x509Certs = X509StoreFactory.Create(
"Certificate/Collection",
new X509CollectionStoreParameters(certList));
IX509Store x509Crls = X509StoreFactory.Create(
"CRL/Collection",
new X509CollectionStoreParameters(crlList));
CmsSignedDataStreamGenerator gen = new CmsSignedDataStreamGenerator();
gen.AddSigner(OrigKP.Private, OrigCert, CmsSignedDataStreamGenerator.DigestSha1);
gen.AddCertificates(x509Certs);
gen.AddCrls(x509Crls);
Stream sigOut = gen.Open(bOut);
CmsCompressedDataStreamGenerator cGen = new CmsCompressedDataStreamGenerator();
Stream cOut = cGen.Open(sigOut, CmsCompressedDataStreamGenerator.ZLib);
byte[] testBytes = Encoding.ASCII.GetBytes(TestMessage);
cOut.Write(testBytes, 0, testBytes.Length);
cOut.Close();
sigOut.Close();
CheckSigParseable(bOut.ToArray());
// generate compressed stream
MemoryStream cDataOut = new MemoryStream();
cOut = cGen.Open(cDataOut, CmsCompressedDataStreamGenerator.ZLib);
cOut.Write(testBytes, 0, testBytes.Length);
cOut.Close();
CmsSignedDataParser sp = new CmsSignedDataParser(
new CmsTypedStream(new MemoryStream(cDataOut.ToArray(), false)), bOut.ToArray());
sp.GetSignedContent().Drain();
//
// compute expected content digest
//
IDigest md = DigestUtilities.GetDigest("SHA1");
byte[] cDataOutBytes = cDataOut.ToArray();
md.BlockUpdate(cDataOutBytes, 0, cDataOutBytes.Length);
byte[] hash = DigestUtilities.DoFinal(md);
VerifySignatures(sp, hash);
}
}
}
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