| package org.bouncycastle.jcajce.provider.asymmetric.x509; |
| |
| import java.io.IOException; |
| import java.math.BigInteger; |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.Principal; |
| import java.security.Provider; |
| import java.security.PublicKey; |
| import java.security.Signature; |
| import java.security.SignatureException; |
| import java.security.cert.CRLException; |
| import java.security.cert.Certificate; |
| import java.security.cert.CertificateEncodingException; |
| import java.security.cert.X509CRL; |
| import java.security.cert.X509CRLEntry; |
| import java.security.cert.X509Certificate; |
| import java.util.Collections; |
| import java.util.Date; |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import javax.security.auth.x500.X500Principal; |
| |
| import org.bouncycastle.asn1.ASN1Encodable; |
| import org.bouncycastle.asn1.ASN1Encoding; |
| import org.bouncycastle.asn1.ASN1InputStream; |
| import org.bouncycastle.asn1.ASN1Integer; |
| import org.bouncycastle.asn1.ASN1ObjectIdentifier; |
| import org.bouncycastle.asn1.ASN1OctetString; |
| import org.bouncycastle.asn1.util.ASN1Dump; |
| import org.bouncycastle.asn1.x500.X500Name; |
| import org.bouncycastle.asn1.x509.CRLDistPoint; |
| import org.bouncycastle.asn1.x509.CRLNumber; |
| import org.bouncycastle.asn1.x509.CertificateList; |
| import org.bouncycastle.asn1.x509.Extension; |
| import org.bouncycastle.asn1.x509.Extensions; |
| import org.bouncycastle.asn1.x509.GeneralNames; |
| import org.bouncycastle.asn1.x509.IssuingDistributionPoint; |
| import org.bouncycastle.asn1.x509.TBSCertList; |
| import org.bouncycastle.jcajce.util.JcaJceHelper; |
| import org.bouncycastle.jce.X509Principal; |
| import org.bouncycastle.util.Strings; |
| import org.bouncycastle.util.encoders.Hex; |
| |
| /** |
| * The following extensions are listed in RFC 2459 as relevant to CRLs |
| * |
| * Authority Key Identifier |
| * Issuer Alternative Name |
| * CRL Number |
| * Delta CRL Indicator (critical) |
| * Issuing Distribution Point (critical) |
| */ |
| class X509CRLObject |
| extends X509CRL |
| { |
| private JcaJceHelper bcHelper; |
| private CertificateList c; |
| private String sigAlgName; |
| private byte[] sigAlgParams; |
| private boolean isIndirect; |
| private boolean isHashCodeSet = false; |
| private int hashCodeValue; |
| |
| static boolean isIndirectCRL(X509CRL crl) |
| throws CRLException |
| { |
| try |
| { |
| byte[] idp = crl.getExtensionValue(Extension.issuingDistributionPoint.getId()); |
| return idp != null |
| && IssuingDistributionPoint.getInstance(ASN1OctetString.getInstance(idp).getOctets()).isIndirectCRL(); |
| } |
| catch (Exception e) |
| { |
| throw new ExtCRLException( |
| "Exception reading IssuingDistributionPoint", e); |
| } |
| } |
| |
| protected X509CRLObject( |
| JcaJceHelper bcHelper, |
| CertificateList c) |
| throws CRLException |
| { |
| this.bcHelper = bcHelper; |
| this.c = c; |
| |
| try |
| { |
| this.sigAlgName = X509SignatureUtil.getSignatureName(c.getSignatureAlgorithm()); |
| |
| if (c.getSignatureAlgorithm().getParameters() != null) |
| { |
| this.sigAlgParams = ((ASN1Encodable)c.getSignatureAlgorithm().getParameters()).toASN1Primitive().getEncoded(ASN1Encoding.DER); |
| } |
| else |
| { |
| this.sigAlgParams = null; |
| } |
| |
| this.isIndirect = isIndirectCRL(this); |
| } |
| catch (Exception e) |
| { |
| throw new CRLException("CRL contents invalid: " + e); |
| } |
| } |
| |
| /** |
| * Will return true if any extensions are present and marked |
| * as critical as we currently dont handle any extensions! |
| */ |
| public boolean hasUnsupportedCriticalExtension() |
| { |
| Set extns = getCriticalExtensionOIDs(); |
| |
| if (extns == null) |
| { |
| return false; |
| } |
| |
| extns.remove(Extension.issuingDistributionPoint.getId()); |
| extns.remove(Extension.deltaCRLIndicator.getId()); |
| |
| return !extns.isEmpty(); |
| } |
| |
| private Set getExtensionOIDs(boolean critical) |
| { |
| if (this.getVersion() == 2) |
| { |
| Extensions extensions = c.getTBSCertList().getExtensions(); |
| |
| if (extensions != null) |
| { |
| Set set = new HashSet(); |
| Enumeration e = extensions.oids(); |
| |
| while (e.hasMoreElements()) |
| { |
| ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier)e.nextElement(); |
| Extension ext = extensions.getExtension(oid); |
| |
| if (critical == ext.isCritical()) |
| { |
| set.add(oid.getId()); |
| } |
| } |
| |
| return set; |
| } |
| } |
| |
| return null; |
| } |
| |
| public Set getCriticalExtensionOIDs() |
| { |
| return getExtensionOIDs(true); |
| } |
| |
| public Set getNonCriticalExtensionOIDs() |
| { |
| return getExtensionOIDs(false); |
| } |
| |
| public byte[] getExtensionValue(String oid) |
| { |
| Extensions exts = c.getTBSCertList().getExtensions(); |
| |
| if (exts != null) |
| { |
| Extension ext = exts.getExtension(new ASN1ObjectIdentifier(oid)); |
| |
| if (ext != null) |
| { |
| try |
| { |
| return ext.getExtnValue().getEncoded(); |
| } |
| catch (Exception e) |
| { |
| throw new IllegalStateException("error parsing " + e.toString()); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| public byte[] getEncoded() |
| throws CRLException |
| { |
| try |
| { |
| return c.getEncoded(ASN1Encoding.DER); |
| } |
| catch (IOException e) |
| { |
| throw new CRLException(e.toString()); |
| } |
| } |
| |
| public void verify(PublicKey key) |
| throws CRLException, NoSuchAlgorithmException, |
| InvalidKeyException, NoSuchProviderException, SignatureException |
| { |
| Signature sig; |
| |
| try |
| { |
| sig = bcHelper.createSignature(getSigAlgName()); |
| } |
| catch (Exception e) |
| { |
| sig = Signature.getInstance(getSigAlgName()); |
| } |
| |
| doVerify(key, sig); |
| } |
| |
| public void verify(PublicKey key, String sigProvider) |
| throws CRLException, NoSuchAlgorithmException, |
| InvalidKeyException, NoSuchProviderException, SignatureException |
| { |
| Signature sig; |
| |
| if (sigProvider != null) |
| { |
| sig = Signature.getInstance(getSigAlgName(), sigProvider); |
| } |
| else |
| { |
| sig = Signature.getInstance(getSigAlgName()); |
| } |
| |
| doVerify(key, sig); |
| } |
| |
| public void verify(PublicKey key, Provider sigProvider) |
| throws CRLException, NoSuchAlgorithmException, |
| InvalidKeyException, SignatureException |
| { |
| Signature sig; |
| |
| if (sigProvider != null) |
| { |
| sig = Signature.getInstance(getSigAlgName(), sigProvider); |
| } |
| else |
| { |
| sig = Signature.getInstance(getSigAlgName()); |
| } |
| |
| doVerify(key, sig); |
| } |
| |
| private void doVerify(PublicKey key, Signature sig) |
| throws CRLException, NoSuchAlgorithmException, |
| InvalidKeyException, SignatureException |
| { |
| if (!c.getSignatureAlgorithm().equals(c.getTBSCertList().getSignature())) |
| { |
| throw new CRLException("Signature algorithm on CertificateList does not match TBSCertList."); |
| } |
| |
| sig.initVerify(key); |
| sig.update(this.getTBSCertList()); |
| |
| if (!sig.verify(this.getSignature())) |
| { |
| throw new SignatureException("CRL does not verify with supplied public key."); |
| } |
| } |
| |
| public int getVersion() |
| { |
| return c.getVersionNumber(); |
| } |
| |
| public Principal getIssuerDN() |
| { |
| return new X509Principal(X500Name.getInstance(c.getIssuer().toASN1Primitive())); |
| } |
| |
| public X500Principal getIssuerX500Principal() |
| { |
| try |
| { |
| return new X500Principal(c.getIssuer().getEncoded()); |
| } |
| catch (IOException e) |
| { |
| throw new IllegalStateException("can't encode issuer DN"); |
| } |
| } |
| |
| public Date getThisUpdate() |
| { |
| return c.getThisUpdate().getDate(); |
| } |
| |
| public Date getNextUpdate() |
| { |
| if (c.getNextUpdate() != null) |
| { |
| return c.getNextUpdate().getDate(); |
| } |
| |
| return null; |
| } |
| |
| private Set loadCRLEntries() |
| { |
| Set entrySet = new HashSet(); |
| Enumeration certs = c.getRevokedCertificateEnumeration(); |
| |
| X500Name previousCertificateIssuer = null; // the issuer |
| while (certs.hasMoreElements()) |
| { |
| TBSCertList.CRLEntry entry = (TBSCertList.CRLEntry)certs.nextElement(); |
| X509CRLEntryObject crlEntry = new X509CRLEntryObject(entry, isIndirect, previousCertificateIssuer); |
| entrySet.add(crlEntry); |
| if (isIndirect && entry.hasExtensions()) |
| { |
| Extension currentCaName = entry.getExtensions().getExtension(Extension.certificateIssuer); |
| |
| if (currentCaName != null) |
| { |
| previousCertificateIssuer = X500Name.getInstance(GeneralNames.getInstance(currentCaName.getParsedValue()).getNames()[0].getName()); |
| } |
| } |
| } |
| |
| return entrySet; |
| } |
| |
| public X509CRLEntry getRevokedCertificate(BigInteger serialNumber) |
| { |
| Enumeration certs = c.getRevokedCertificateEnumeration(); |
| |
| X500Name previousCertificateIssuer = null; // the issuer |
| while (certs.hasMoreElements()) |
| { |
| TBSCertList.CRLEntry entry = (TBSCertList.CRLEntry)certs.nextElement(); |
| |
| if (serialNumber.equals(entry.getUserCertificate().getValue())) |
| { |
| return new X509CRLEntryObject(entry, isIndirect, previousCertificateIssuer); |
| } |
| |
| if (isIndirect && entry.hasExtensions()) |
| { |
| Extension currentCaName = entry.getExtensions().getExtension(Extension.certificateIssuer); |
| |
| if (currentCaName != null) |
| { |
| previousCertificateIssuer = X500Name.getInstance(GeneralNames.getInstance(currentCaName.getParsedValue()).getNames()[0].getName()); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| public Set getRevokedCertificates() |
| { |
| Set entrySet = loadCRLEntries(); |
| |
| if (!entrySet.isEmpty()) |
| { |
| return Collections.unmodifiableSet(entrySet); |
| } |
| |
| return null; |
| } |
| |
| public byte[] getTBSCertList() |
| throws CRLException |
| { |
| try |
| { |
| return c.getTBSCertList().getEncoded("DER"); |
| } |
| catch (IOException e) |
| { |
| throw new CRLException(e.toString()); |
| } |
| } |
| |
| public byte[] getSignature() |
| { |
| return c.getSignature().getOctets(); |
| } |
| |
| public String getSigAlgName() |
| { |
| return sigAlgName; |
| } |
| |
| public String getSigAlgOID() |
| { |
| return c.getSignatureAlgorithm().getAlgorithm().getId(); |
| } |
| |
| public byte[] getSigAlgParams() |
| { |
| if (sigAlgParams != null) |
| { |
| byte[] tmp = new byte[sigAlgParams.length]; |
| |
| System.arraycopy(sigAlgParams, 0, tmp, 0, tmp.length); |
| |
| return tmp; |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Returns a string representation of this CRL. |
| * |
| * @return a string representation of this CRL. |
| */ |
| public String toString() |
| { |
| StringBuffer buf = new StringBuffer(); |
| String nl = Strings.lineSeparator(); |
| |
| buf.append(" Version: ").append(this.getVersion()).append( |
| nl); |
| buf.append(" IssuerDN: ").append(this.getIssuerDN()) |
| .append(nl); |
| buf.append(" This update: ").append(this.getThisUpdate()) |
| .append(nl); |
| buf.append(" Next update: ").append(this.getNextUpdate()) |
| .append(nl); |
| buf.append(" Signature Algorithm: ").append(this.getSigAlgName()) |
| .append(nl); |
| |
| byte[] sig = this.getSignature(); |
| |
| buf.append(" Signature: ").append( |
| new String(Hex.encode(sig, 0, 20))).append(nl); |
| for (int i = 20; i < sig.length; i += 20) |
| { |
| if (i < sig.length - 20) |
| { |
| buf.append(" ").append( |
| new String(Hex.encode(sig, i, 20))).append(nl); |
| } |
| else |
| { |
| buf.append(" ").append( |
| new String(Hex.encode(sig, i, sig.length - i))).append(nl); |
| } |
| } |
| |
| Extensions extensions = c.getTBSCertList().getExtensions(); |
| |
| if (extensions != null) |
| { |
| Enumeration e = extensions.oids(); |
| |
| if (e.hasMoreElements()) |
| { |
| buf.append(" Extensions: ").append(nl); |
| } |
| |
| while (e.hasMoreElements()) |
| { |
| ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) e.nextElement(); |
| Extension ext = extensions.getExtension(oid); |
| |
| if (ext.getExtnValue() != null) |
| { |
| byte[] octs = ext.getExtnValue().getOctets(); |
| ASN1InputStream dIn = new ASN1InputStream(octs); |
| buf.append(" critical(").append( |
| ext.isCritical()).append(") "); |
| try |
| { |
| if (oid.equals(Extension.cRLNumber)) |
| { |
| buf.append( |
| new CRLNumber(ASN1Integer.getInstance( |
| dIn.readObject()).getPositiveValue())) |
| .append(nl); |
| } |
| else if (oid.equals(Extension.deltaCRLIndicator)) |
| { |
| buf.append( |
| "Base CRL: " |
| + new CRLNumber(ASN1Integer.getInstance( |
| dIn.readObject()).getPositiveValue())) |
| .append(nl); |
| } |
| else if (oid |
| .equals(Extension.issuingDistributionPoint)) |
| { |
| buf.append( |
| IssuingDistributionPoint.getInstance(dIn.readObject())).append(nl); |
| } |
| else if (oid |
| .equals(Extension.cRLDistributionPoints)) |
| { |
| buf.append( |
| CRLDistPoint.getInstance(dIn.readObject())).append(nl); |
| } |
| else if (oid.equals(Extension.freshestCRL)) |
| { |
| buf.append( |
| CRLDistPoint.getInstance(dIn.readObject())).append(nl); |
| } |
| else |
| { |
| buf.append(oid.getId()); |
| buf.append(" value = ").append( |
| ASN1Dump.dumpAsString(dIn.readObject())) |
| .append(nl); |
| } |
| } |
| catch (Exception ex) |
| { |
| buf.append(oid.getId()); |
| buf.append(" value = ").append("*****").append(nl); |
| } |
| } |
| else |
| { |
| buf.append(nl); |
| } |
| } |
| } |
| Set set = getRevokedCertificates(); |
| if (set != null) |
| { |
| Iterator it = set.iterator(); |
| while (it.hasNext()) |
| { |
| buf.append(it.next()); |
| buf.append(nl); |
| } |
| } |
| return buf.toString(); |
| } |
| |
| /** |
| * Checks whether the given certificate is on this CRL. |
| * |
| * @param cert the certificate to check for. |
| * @return true if the given certificate is on this CRL, |
| * false otherwise. |
| */ |
| public boolean isRevoked(Certificate cert) |
| { |
| if (!cert.getType().equals("X.509")) |
| { |
| throw new IllegalArgumentException("X.509 CRL used with non X.509 Cert"); |
| } |
| |
| Enumeration certs = c.getRevokedCertificateEnumeration(); |
| |
| X500Name caName = c.getIssuer(); |
| |
| if (certs.hasMoreElements()) |
| { |
| BigInteger serial = ((X509Certificate)cert).getSerialNumber(); |
| |
| while (certs.hasMoreElements()) |
| { |
| TBSCertList.CRLEntry entry = TBSCertList.CRLEntry.getInstance(certs.nextElement()); |
| |
| if (isIndirect && entry.hasExtensions()) |
| { |
| Extension currentCaName = entry.getExtensions().getExtension(Extension.certificateIssuer); |
| |
| if (currentCaName != null) |
| { |
| caName = X500Name.getInstance(GeneralNames.getInstance(currentCaName.getParsedValue()).getNames()[0].getName()); |
| } |
| } |
| |
| if (entry.getUserCertificate().getValue().equals(serial)) |
| { |
| X500Name issuer; |
| |
| if (cert instanceof X509Certificate) |
| { |
| issuer = X500Name.getInstance(((X509Certificate)cert).getIssuerX500Principal().getEncoded()); |
| } |
| else |
| { |
| try |
| { |
| issuer = org.bouncycastle.asn1.x509.Certificate.getInstance(cert.getEncoded()).getIssuer(); |
| } |
| catch (CertificateEncodingException e) |
| { |
| throw new IllegalArgumentException("Cannot process certificate: " + e.getMessage()); |
| } |
| } |
| |
| if (!caName.equals(issuer)) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| public boolean equals(Object other) |
| { |
| if (this == other) |
| { |
| return true; |
| } |
| |
| if (!(other instanceof X509CRL)) |
| { |
| return false; |
| } |
| |
| if (other instanceof X509CRLObject) |
| { |
| X509CRLObject crlObject = (X509CRLObject)other; |
| |
| if (isHashCodeSet) |
| { |
| boolean otherIsHashCodeSet = crlObject.isHashCodeSet; |
| if (otherIsHashCodeSet) |
| { |
| if (crlObject.hashCodeValue != hashCodeValue) |
| { |
| return false; |
| } |
| } |
| } |
| |
| return this.c.equals(crlObject.c); |
| } |
| |
| return super.equals(other); |
| } |
| |
| public int hashCode() |
| { |
| if (!isHashCodeSet) |
| { |
| isHashCodeSet = true; |
| hashCodeValue = super.hashCode(); |
| } |
| |
| return hashCodeValue; |
| } |
| } |
| |