/// <summary>
/// Build the Pfx structure, protecting it with a MAC calculated against the passed in password.
/// </summary>
/// <param name="macCalcFactory">a builder for a Pkcs12 mac calculator.</param>
/// <returns>A Pfx object.</returns>
public Pkcs12PfxPdu Build(IMacFactory <Pkcs12MacAlgDescriptor> macCalcFactory)
{
AuthenticatedSafe auth = AuthenticatedSafe.GetInstance(new DerSequence(dataVector));
byte[] encAuth;
try
{
encAuth = auth.GetEncoded();
}
catch (IOException e)
{
throw new PkcsException("unable to encode AuthenticatedSafe: " + e.Message, e);
}
ContentInfo mainInfo = new ContentInfo(PkcsObjectIdentifiers.Data, new DerOctetString(encAuth));
MacData mData = null;
if (macCalcFactory != null)
{
mData = PkcsUtilities.CreateMacData(macCalcFactory, encAuth);
}
//
// output the Pfx
//
Pfx pfx = new Pfx(mainInfo, mData);
return(new Pkcs12PfxPdu(pfx));
}
public override void PerformTest()
{
Pfx bag = Pfx.GetInstance(pkcs12);
ContentInfo info = bag.AuthSafe;
MacData mData = bag.MacData;
DigestInfo dInfo = mData.Mac;
AlgorithmIdentifier algId = dInfo.AlgorithmID;
byte[] salt = mData.GetSalt();
int itCount = mData.IterationCount.IntValue;
Asn1OctetString content = Asn1OctetString.GetInstance(info.Content);
AuthenticatedSafe authSafe = AuthenticatedSafe.GetInstance(content.GetOctets());
ContentInfo[] c = authSafe.GetContentInfo();
//
// private key section
//
if (!c[0].ContentType.Equals(PkcsObjectIdentifiers.Data))
{
Fail("Failed comparison data test");
}
Asn1OctetString authSafeContent = Asn1OctetString.GetInstance(c[0].Content);
Asn1Sequence seq = Asn1Sequence.GetInstance(authSafeContent.GetOctets());
SafeBag b = SafeBag.GetInstance(seq[0]);
if (!b.BagID.Equals(PkcsObjectIdentifiers.Pkcs8ShroudedKeyBag))
{
Fail("Failed comparison shroudedKeyBag test");
}
EncryptedPrivateKeyInfo encInfo = EncryptedPrivateKeyInfo.GetInstance(b.BagValue);
encInfo = new EncryptedPrivateKeyInfo(encInfo.EncryptionAlgorithm, encInfo.GetEncryptedData());
b = new SafeBag(PkcsObjectIdentifiers.Pkcs8ShroudedKeyBag, encInfo.ToAsn1Object(), b.BagAttributes);
byte[] contentOctets = new DerSequence(b).GetEncoded();
c[0] = new ContentInfo(PkcsObjectIdentifiers.Data, new BerOctetString(contentOctets));
//
// certificates
//
if (!c[1].ContentType.Equals(PkcsObjectIdentifiers.EncryptedData))
{
Fail("Failed comparison encryptedData test");
}
EncryptedData eData = EncryptedData.GetInstance(c[1].Content);
c[1] = new ContentInfo(PkcsObjectIdentifiers.EncryptedData, eData);
//
// create an octet stream to represent the BER encoding of authSafe
//
authSafe = new AuthenticatedSafe(c);
contentOctets = authSafe.GetEncoded();
info = new ContentInfo(PkcsObjectIdentifiers.Data, new BerOctetString(contentOctets));
mData = new MacData(new DigestInfo(algId, dInfo.GetDigest()), salt, itCount);
bag = new Pfx(info, mData);
//
// comparison test
//
byte[] pfxEncoding = bag.GetEncoded();
if (!Arrays.AreEqual(pfxEncoding, pkcs12))
{
Fail("Failed comparison test");
}
}
public void Save(
Stream stream,
char[] password,
SecureRandom random)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (password == null)
{
throw new ArgumentNullException("password");
}
if (random == null)
{
throw new ArgumentNullException("random");
}
ContentInfo[] c = new ContentInfo[2];
//
// handle the key
//
Asn1EncodableVector keyS = new Asn1EncodableVector();
foreach (string name in keys.Keys)
{
byte[] kSalt = new byte[saltSize];
random.NextBytes(kSalt);
AsymmetricKeyEntry privKey = (AsymmetricKeyEntry)keys[name];
EncryptedPrivateKeyInfo kInfo =
EncryptedPrivateKeyInfoFactory.CreateEncryptedPrivateKeyInfo(
keyAlgorithm, password, kSalt, minIterations, privKey.Key);
Asn1EncodableVector kName = new Asn1EncodableVector();
foreach (string oid in privKey.BagAttributeKeys)
{
kName.Add(
new DerSequence(
new DerObjectIdentifier(oid),
new DerSet(privKey[oid])));
}
//
// make sure we have a local key-id
//
if (privKey[PkcsObjectIdentifiers.Pkcs9AtLocalKeyID] == null)
{
X509CertificateEntry ct = GetCertificate(name);
SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(
ct.Certificate.GetPublicKey());
kName.Add(
new DerSequence(
PkcsObjectIdentifiers.Pkcs9AtLocalKeyID,
new DerSet(new SubjectKeyIdentifier(info))));
}
//
// make sure we are using the local alias on store
//
DerBmpString nm = (DerBmpString)privKey[PkcsObjectIdentifiers.Pkcs9AtFriendlyName];
if (nm == null || !nm.GetString().Equals(name))
{
kName.Add(
new DerSequence(
PkcsObjectIdentifiers.Pkcs9AtFriendlyName,
new DerSet(new DerBmpString(name))));
}
SafeBag kBag = new SafeBag(PkcsObjectIdentifiers.Pkcs8ShroudedKeyBag, kInfo.ToAsn1Object(), new DerSet(kName));
keyS.Add(kBag);
}
byte[] derEncodedBytes = new DerSequence(keyS).GetDerEncoded();
BerOctetString keyString = new BerOctetString(derEncodedBytes);
//
// certificate processing
//
byte[] cSalt = new byte[saltSize];
random.NextBytes(cSalt);
Asn1EncodableVector certSeq = new Asn1EncodableVector();
Pkcs12PbeParams cParams = new Pkcs12PbeParams(cSalt, minIterations);
AlgorithmIdentifier cAlgId = new AlgorithmIdentifier(certAlgorithm, cParams.ToAsn1Object());
Hashtable doneCerts = new Hashtable();
foreach (string name in keys.Keys)
{
X509CertificateEntry certEntry = GetCertificate(name);
CertBag cBag = new CertBag(
PkcsObjectIdentifiers.X509CertType,
new DerOctetString(certEntry.Certificate.GetEncoded()));
Asn1EncodableVector fName = new Asn1EncodableVector();
foreach (string oid in certEntry.BagAttributeKeys)
{
fName.Add(
new DerSequence(
new DerObjectIdentifier(oid),
new DerSet(certEntry[oid])));
}
//
// make sure we are using the local alias on store
//
DerBmpString nm = (DerBmpString)certEntry[PkcsObjectIdentifiers.Pkcs9AtFriendlyName];
if (nm == null || !nm.GetString().Equals(name))
{
fName.Add(
new DerSequence(
PkcsObjectIdentifiers.Pkcs9AtFriendlyName,
new DerSet(new DerBmpString(name))));
}
//
// make sure we have a local key-id
//
if (certEntry[PkcsObjectIdentifiers.Pkcs9AtLocalKeyID] == null)
{
SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(
certEntry.Certificate.GetPublicKey());
fName.Add(
new DerSequence(
PkcsObjectIdentifiers.Pkcs9AtLocalKeyID,
new DerSet(new SubjectKeyIdentifier(info))));
}
SafeBag sBag = new SafeBag(
PkcsObjectIdentifiers.CertBag, cBag.ToAsn1Object(), new DerSet(fName));
certSeq.Add(sBag);
doneCerts.Add(certEntry.Certificate, certEntry.Certificate);
}
foreach (string certId in certs.Keys)
{
X509CertificateEntry cert = (X509CertificateEntry)certs[certId];
if (keys[certId] != null)
{
continue;
}
CertBag cBag = new CertBag(
PkcsObjectIdentifiers.X509CertType,
new DerOctetString(cert.Certificate.GetEncoded()));
Asn1EncodableVector fName = new Asn1EncodableVector();
foreach (string oid in cert.BagAttributeKeys)
{
fName.Add(
new DerSequence(
new DerObjectIdentifier(oid),
new DerSet(cert[oid])));
}
//
// make sure we are using the local alias on store
//
DerBmpString nm = (DerBmpString)cert[PkcsObjectIdentifiers.Pkcs9AtFriendlyName];
if (nm == null || !nm.GetString().Equals(certId))
{
fName.Add(
new DerSequence(
PkcsObjectIdentifiers.Pkcs9AtFriendlyName,
new DerSet(new DerBmpString(certId))));
}
SafeBag sBag = new SafeBag(PkcsObjectIdentifiers.CertBag,
cBag.ToAsn1Object(), new DerSet(fName));
certSeq.Add(sBag);
doneCerts.Add(cert, cert);
}
foreach (CertId certId in chainCerts.Keys)
{
X509CertificateEntry cert = (X509CertificateEntry)chainCerts[certId];
if (doneCerts[cert] != null)
{
continue;
}
CertBag cBag = new CertBag(
PkcsObjectIdentifiers.X509CertType,
new DerOctetString(cert.Certificate.GetEncoded()));
Asn1EncodableVector fName = new Asn1EncodableVector();
foreach (string oid in cert.BagAttributeKeys)
{
fName.Add(new DerSequence(new DerObjectIdentifier(oid), new DerSet(cert[oid])));
}
SafeBag sBag = new SafeBag(PkcsObjectIdentifiers.CertBag, cBag.ToAsn1Object(), new DerSet(fName));
certSeq.Add(sBag);
}
derEncodedBytes = new DerSequence(certSeq).GetDerEncoded();
byte[] certBytes = EncryptData(new AlgorithmIdentifier(certAlgorithm, cParams), derEncodedBytes, password);
EncryptedData cInfo = new EncryptedData(PkcsObjectIdentifiers.Data, cAlgId, new BerOctetString(certBytes));
c[0] = new ContentInfo(PkcsObjectIdentifiers.Data, keyString);
c[1] = new ContentInfo(PkcsObjectIdentifiers.EncryptedData, cInfo.ToAsn1Object());
AuthenticatedSafe auth = new AuthenticatedSafe(c);
byte[] pkg = auth.GetEncoded();
ContentInfo mainInfo = new ContentInfo(PkcsObjectIdentifiers.Data, new BerOctetString(pkg));
//
// create the mac
//
byte[] mSalt = new byte[20];
int itCount = minIterations;
random.NextBytes(mSalt);
byte[] data = ((Asn1OctetString)mainInfo.Content).GetOctets();
MacData mData = null;
Asn1Encodable parameters = PbeUtilities.GenerateAlgorithmParameters(OiwObjectIdentifiers.IdSha1, mSalt, itCount);
ICipherParameters keyParameters = PbeUtilities.GenerateCipherParameters(
OiwObjectIdentifiers.IdSha1, password, parameters);
IMac mac = (IMac)PbeUtilities.CreateEngine(OiwObjectIdentifiers.IdSha1);
mac.Init(keyParameters);
mac.BlockUpdate(data, 0, data.Length);
byte[] res = new byte[mac.GetMacSize()];
mac.DoFinal(res, 0);
AlgorithmIdentifier algId = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance);
DigestInfo dInfo = new DigestInfo(algId, res);
mData = new MacData(dInfo, mSalt, itCount);
//
// output the Pfx
//
Pfx pfx = new Pfx(mainInfo, mData);
BerOutputStream berOut = new BerOutputStream(stream);
berOut.WriteObject(pfx);
}
