/**
* generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public byte[] generateSignature()
{
if (forSigning)
{
MemoryStream bOut = new MemoryStream();
DEROutputStream dOut = new DEROutputStream(bOut);
ASN1EncodableVector v = new ASN1EncodableVector();
byte[] dig = new byte[digest.getDigestSize()];
digest.doFinal(dig, 0);
BigInteger[] sig = dsaSigner.generateSignature(dig);
v.add(new DERInteger(sig[0]));
v.add(new DERInteger(sig[1]));
dOut.writeObject(new DERSequence(v));
dOut.Flush();
byte[] output = bOut.ToArray();
dOut.Close();
return(output);
}
throw new Exception("DSADigestSigner initialised for verification..");
}
public void save(Stream stream, char[] password, SecureRandom random)
{
if (password == null)
{
throw new ArgumentException("No password supplied for PKCS12Store.");
}
ContentInfo[] c = new ContentInfo[2];
//
// handle the key
//
ASN1EncodableVector keyS = new ASN1EncodableVector();
IEnumerator ks = keys.Keys.GetEnumerator();
while (ks.MoveNext())
{
byte[] kSalt = new byte[saltSize];
random.nextBytes(kSalt);
String name = (String)ks.Current;
AsymmetricKeyEntry privKey = (AsymmetricKeyEntry)keys[name];
EncryptedPrivateKeyInfo kInfo = EncryptedPrivateKeyInfoFactory.createEncryptedPrivateKeyInfo(keyAlgorithm, password, kSalt, minIterations, privKey.getKey());
ASN1EncodableVector kName = new ASN1EncodableVector();
IEnumerator e = privKey.getBagAttributeKeys();
while (e.MoveNext())
{
String oid = (String)e.Current;
ASN1EncodableVector kSeq = new ASN1EncodableVector();
kSeq.add(new DERObjectIdentifier(oid));
kSeq.add(new DERSet(privKey.getBagAttribute(new DERObjectIdentifier(oid))));
kName.add(new DERSequence(kSeq));
}
//
// make sure we have a local key-id
//
if (privKey.getBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_localKeyId) == null)
{
ASN1EncodableVector kSeq = new ASN1EncodableVector();
X509CertificateEntry ct = getCertificate(name);
kSeq.add(PKCSObjectIdentifiers.pkcs_9_at_localKeyId);
kSeq.add(new DERSet(new SubjectKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(ct.getCertificate().getPublicKey()))));
kName.add(new DERSequence(kSeq));
}
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString)privKey.getBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().Equals(name))
{
ASN1EncodableVector kSeq = new ASN1EncodableVector();
kSeq.add(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
kSeq.add(new DERSet(new DERBMPString(name)));
kName.add(new DERSequence(kSeq));
}
SafeBag kBag = new SafeBag(PKCSObjectIdentifiers.pkcs8ShroudedKeyBag, kInfo.toASN1Object(), new DERSet(kName));
keyS.add(kBag);
}
MemoryStream bOut = new MemoryStream();
DEROutputStream dOut = new DEROutputStream(bOut);
dOut.writeObject(new DERSequence(keyS));
BEROctetString keyString = new BEROctetString(bOut.ToArray());
//
// certficate 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();
IEnumerator cs = keys.Keys.GetEnumerator();
while (cs.MoveNext())
{
try
{
String name = (String)cs.Current;
X509CertificateEntry cert = getCertificate(name);
CertBag cBag = new CertBag(
PKCSObjectIdentifiers.x509certType,
new DEROctetString(cert.getCertificate().getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
IEnumerator e = cert.getBagAttributeKeys();
while (e.MoveNext())
{
String oid = (String)e.Current;
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(new DERObjectIdentifier(oid));
fSeq.add(new DERSet(cert.getBagAttribute(new DERObjectIdentifier(oid))));
fName.add(new DERSequence(fSeq));
}
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString)cert.getBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().Equals(name))
{
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
fSeq.add(new DERSet(new DERBMPString(name)));
fName.add(new DERSequence(fSeq));
}
//
// make sure we have a local key-id
//
if (cert.getBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_localKeyId) == null)
{
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(PKCSObjectIdentifiers.pkcs_9_at_localKeyId);
fSeq.add(new DERSet(new SubjectKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(cert.getCertificate().getPublicKey()))));
fName.add(new DERSequence(fSeq));
}
SafeBag sBag = new SafeBag(PKCSObjectIdentifiers.certBag, cBag.toASN1Object(), new DERSet(fName));
certSeq.add(sBag);
doneCerts.Add(cert, cert);
}
catch (Exception e)
{
throw new Exception("Error encoding certificate: " + e.Message);
}
}
cs = certs.Keys.GetEnumerator();
while (cs.MoveNext())
{
try
{
String certId = (String)cs.Current;
X509CertificateEntry cert = (X509CertificateEntry)certs[certId];
if (keys[certId] != null)
{
continue;
}
CertBag cBag = new CertBag(
PKCSObjectIdentifiers.x509certType,
new DEROctetString(cert.getCertificate().getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
IEnumerator e = cert.getBagAttributeKeys();
while (e.MoveNext())
{
String oid = (String)e.Current;
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(new DERObjectIdentifier(oid));
fSeq.add(new DERSet(cert.getBagAttribute(new DERObjectIdentifier(oid))));
fName.add(new DERSequence(fSeq));
}
//
// make sure we are using the local alias on store
//
DERBMPString nm = (DERBMPString)cert.getBagAttribute(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
if (nm == null || !nm.getString().Equals(certId))
{
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(PKCSObjectIdentifiers.pkcs_9_at_friendlyName);
fSeq.add(new DERSet(new DERBMPString(certId)));
fName.add(new DERSequence(fSeq));
}
SafeBag sBag = new SafeBag(PKCSObjectIdentifiers.certBag, cBag.toASN1Object(), new DERSet(fName));
certSeq.add(sBag);
doneCerts.Add(cert, cert);
}
catch (Exception e)
{
throw new Exception("Error encoding certificate: " + e.Message);
}
}
cs = chainCerts.Keys.GetEnumerator();
while (cs.MoveNext())
{
try
{
CertId certId = (CertId)cs.Current;
X509CertificateEntry cert = (X509CertificateEntry)chainCerts[certId];
if (doneCerts[cert] != null)
{
continue;
}
CertBag cBag = new CertBag(
PKCSObjectIdentifiers.x509certType,
new DEROctetString(cert.getCertificate().getEncoded()));
ASN1EncodableVector fName = new ASN1EncodableVector();
IEnumerator e = cert.getBagAttributeKeys();
while (e.MoveNext())
{
DERObjectIdentifier oid = (DERObjectIdentifier)e.Current;
ASN1EncodableVector fSeq = new ASN1EncodableVector();
fSeq.add(oid);
fSeq.add(new DERSet(cert.getBagAttribute(oid)));
fName.add(new DERSequence(fSeq));
}
SafeBag sBag = new SafeBag(PKCSObjectIdentifiers.certBag, cBag.toASN1Object(), new DERSet(fName));
certSeq.add(sBag);
}
catch (Exception e)
{
throw new Exception("Error encoding certificate: " + e.Message);
}
}
bOut = new MemoryStream();
dOut = new DEROutputStream(bOut);
dOut.writeObject(new DERSequence(certSeq));
dOut.Close();
byte[] certBytes = encryptData(new AlgorithmIdentifier(certAlgorithm, cParams), bOut.ToArray(), 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);
bOut = new MemoryStream();
BEROutputStream berOut = new BEROutputStream(bOut);
berOut.writeObject(auth);
byte[] pkg = bOut.ToArray();
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.getContent()).getOctets();
MacData mData = null;
try
{
ASN1Encodable parameters = PBEUtil.generateAlgorithmParameters(OIWObjectIdentifiers.id_SHA1, mSalt, itCount);
CipherParameters keyParameters = PBEUtil.generateCipherParameters(OIWObjectIdentifiers.id_SHA1, password, parameters);
Mac mac = (Mac)PBEUtil.createEngine(OIWObjectIdentifiers.id_SHA1);
mac.init(keyParameters);
mac.update(data, 0, data.Length);
byte[] res = new byte[mac.getMacSize()];
mac.doFinal(res, 0);
AlgorithmIdentifier algId = new AlgorithmIdentifier(OIWObjectIdentifiers.id_SHA1, new DERNull());
DigestInfo dInfo = new DigestInfo(algId, res);
mData = new MacData(dInfo, mSalt, itCount);
}
catch (Exception e)
{
throw new Exception("error constructing MAC: " + e.Message);
}
//
// output the Pfx
//
Pfx pfx = new Pfx(mainInfo, mData);
berOut = new BEROutputStream(stream);
berOut.writeObject(pfx);
}
