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using System;
using System.Collections;
using System.Text;
using NUnit.Framework;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
using Org.BouncyCastle.X509;
namespace Org.BouncyCastle.Cms.Tests
{
[TestFixture]
public class AuthenticatedDataTest
{
private const string SignDN = "O=Bouncy Castle, C=AU";
private static AsymmetricCipherKeyPair signKP;
// private static X509Certificate signCert;
//signCert = CmsTestUtil.MakeCertificate(_signKP, SignDN, _signKP, SignDN);
// private const string OrigDN = "CN=Bob, OU=Sales, O=Bouncy Castle, C=AU";
// private static AsymmetricCipherKeyPair origKP;
//origKP = CmsTestUtil.MakeKeyPair();
// private static X509Certificate origCert;
//origCert = CmsTestUtil.MakeCertificate(_origKP, OrigDN, _signKP, SignDN);
private const string ReciDN = "CN=Doug, OU=Sales, O=Bouncy Castle, C=AU";
private static AsymmetricCipherKeyPair reciKP;
private static X509Certificate reciCert;
private static AsymmetricCipherKeyPair origECKP;
private static AsymmetricCipherKeyPair reciECKP;
private static X509Certificate reciECCert;
private static AsymmetricCipherKeyPair SignKP
{
get { return signKP == null ? (signKP = CmsTestUtil.MakeKeyPair()) : signKP; }
}
private static AsymmetricCipherKeyPair ReciKP
{
get { return reciKP == null ? (reciKP = CmsTestUtil.MakeKeyPair()) : reciKP; }
}
private static X509Certificate ReciCert
{
get { return reciCert == null ? (reciCert = CmsTestUtil.MakeCertificate(ReciKP, ReciDN, SignKP, SignDN)) : reciCert; }
}
private static AsymmetricCipherKeyPair OrigECKP
{
get { return origECKP == null ? (origECKP = CmsTestUtil.MakeECDsaKeyPair()) : origECKP; }
}
private static AsymmetricCipherKeyPair ReciECKP
{
get { return reciECKP == null ? (reciECKP = CmsTestUtil.MakeECDsaKeyPair()) : reciECKP; }
}
private static X509Certificate ReciECCert
{
get { return reciECCert == null ? (reciECCert = CmsTestUtil.MakeCertificate(ReciECKP, ReciDN, SignKP, SignDN)) : reciECCert; }
}
// private static string _signDN;
// private static KeyPair _signKP;
// private static X509Certificate _signCert;
//
// private static string _origDN;
// private static KeyPair _origKP;
// private static X509Certificate _origCert;
//
// private static string _reciDN;
// private static KeyPair _reciKP;
// private static X509Certificate _reciCert;
//
// private static KeyPair _origEcKP;
// private static KeyPair _reciEcKP;
// private static X509Certificate _reciEcCert;
//
// private static bool _initialised = false;
//
// public bool DEBUG = true;
//
// private static void init()
// {
// if (!_initialised)
// {
// _initialised = true;
//
// _signDN = "O=Bouncy Castle, C=AU";
// _signKP = CmsTestUtil.makeKeyPair();
// _signCert = CmsTestUtil.makeCertificate(_signKP, _signDN, _signKP, _signDN);
//
// _origDN = "CN=Bob, OU=Sales, O=Bouncy Castle, C=AU";
// _origKP = CmsTestUtil.makeKeyPair();
// _origCert = CmsTestUtil.makeCertificate(_origKP, _origDN, _signKP, _signDN);
//
// _reciDN = "CN=Doug, OU=Sales, O=Bouncy Castle, C=AU";
// _reciKP = CmsTestUtil.makeKeyPair();
// _reciCert = CmsTestUtil.makeCertificate(_reciKP, _reciDN, _signKP, _signDN);
//
// _origEcKP = CmsTestUtil.makeEcDsaKeyPair();
// _reciEcKP = CmsTestUtil.makeEcDsaKeyPair();
// _reciEcCert = CmsTestUtil.makeCertificate(_reciEcKP, _reciDN, _signKP, _signDN);
// }
// }
//
// public void setUp()
// {
// init();
// }
//
// public AuthenticatedDataTest(string name)
// {
// super(name);
// }
//
// public static void main(string args[])
// {
// junit.textui.TestRunner.run(AuthenticatedDataTest.class);
// }
//
// public static Test suite()
// throws Exception
// {
// init();
//
// return new CMSTestSetup(new TestSuite(AuthenticatedDataTest.class));
// }
[Test]
public void TestKeyTransDESede()
{
tryKeyTrans(CmsAuthenticatedDataGenerator.DesEde3Cbc);
}
[Test]
public void TestKEKDESede()
{
tryKekAlgorithm(CmsTestUtil.MakeDesEde192Key(), new DerObjectIdentifier("1.2.840.113549.1.9.16.3.6"));
}
[Test]
public void TestPasswordAES256()
{
passwordTest(CmsAuthenticatedDataGenerator.Aes256Cbc);
}
[Test]
public void TestECKeyAgree()
{
byte[] data = Hex.Decode("504b492d4320434d5320456e76656c6f706564446174612053616d706c65");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
adGen.AddKeyAgreementRecipient(CmsAuthenticatedDataGenerator.ECDHSha1Kdf, OrigECKP.Private, OrigECKP.Public, ReciECCert, CmsAuthenticatedDataGenerator.Aes128Wrap);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
CmsAuthenticatedDataGenerator.DesEde3Cbc);
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(CmsAuthenticatedDataGenerator.DesEde3Cbc, ad.MacAlgOid);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (RecipientInformation recipient in c)
{
byte[] recData = recipient.GetContent(ReciECKP.Private);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
[Test]
public void TestEncoding()
{
byte[] data = Encoding.ASCII.GetBytes("Eric H. Echidna");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
adGen.AddKeyTransRecipient(ReciCert);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
CmsAuthenticatedDataGenerator.DesEde3Cbc);
ad = new CmsAuthenticatedData(ad.GetEncoded());
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(CmsAuthenticatedDataGenerator.DesEde3Cbc, ad.MacAlgOid);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (RecipientInformation recipient in c)
{
Assert.AreEqual(recipient.KeyEncryptionAlgOid, PkcsObjectIdentifiers.RsaEncryption.Id);
byte[] recData = recipient.GetContent(ReciKP.Private);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
private void tryKeyTrans(string macAlg)
{
byte[] data = Encoding.ASCII.GetBytes("Eric H. Echidna");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
adGen.AddKeyTransRecipient(ReciCert);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
macAlg);
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(ad.MacAlgOid, macAlg);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (RecipientInformation recipient in c)
{
Assert.AreEqual(recipient.KeyEncryptionAlgOid, PkcsObjectIdentifiers.RsaEncryption.Id);
byte[] recData = recipient.GetContent(ReciKP.Private);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
private void tryKekAlgorithm(KeyParameter kek, DerObjectIdentifier algOid)
{
byte[] data = Encoding.ASCII.GetBytes("Eric H. Echidna");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
byte[] kekId = new byte[] { 1, 2, 3, 4, 5 };
// FIXME Will this work for macs?
string keyAlgorithm = ParameterUtilities.GetCanonicalAlgorithmName(algOid.Id);
adGen.AddKekRecipient(keyAlgorithm, kek, kekId);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
CmsAuthenticatedDataGenerator.DesEde3Cbc);
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(CmsAuthenticatedDataGenerator.DesEde3Cbc, ad.MacAlgOid);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (RecipientInformation recipient in c)
{
Assert.AreEqual(recipient.KeyEncryptionAlgOid, algOid.Id);
byte[] recData = recipient.GetContent(kek);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
private void passwordTest(string algorithm)
{
byte[] data = Hex.Decode("504b492d4320434d5320456e76656c6f706564446174612053616d706c65");
CmsAuthenticatedDataGenerator adGen = new CmsAuthenticatedDataGenerator();
adGen.AddPasswordRecipient(new Pkcs5Scheme2PbeKey("password".ToCharArray(), new byte[20], 5), algorithm);
CmsAuthenticatedData ad = adGen.Generate(
new CmsProcessableByteArray(data),
CmsAuthenticatedDataGenerator.DesEde3Cbc);
RecipientInformationStore recipients = ad.GetRecipientInfos();
Assert.AreEqual(CmsAuthenticatedDataGenerator.DesEde3Cbc, ad.MacAlgOid);
ICollection c = recipients.GetRecipients();
Assert.AreEqual(1, c.Count);
foreach (PasswordRecipientInformation recipient in c)
{
CmsPbeKey key = new Pkcs5Scheme2PbeKey("password".ToCharArray(), recipient.KeyDerivationAlgorithm);
byte[] recData = recipient.GetContent(key);
Assert.IsTrue(Arrays.AreEqual(data, recData));
Assert.IsTrue(Arrays.AreEqual(ad.GetMac(), recipient.GetMac()));
}
}
}
}
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