| package org.bouncycastle.x509; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.math.BigInteger; |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.NoSuchProviderException; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.security.SecureRandom; |
| import java.security.Signature; |
| import java.security.SignatureException; |
| import java.security.cert.CertificateParsingException; |
| import java.security.cert.X509Certificate; |
| import java.util.Date; |
| import java.util.Hashtable; |
| import java.util.Iterator; |
| import java.util.Vector; |
| |
| import javax.security.auth.x500.X500Principal; |
| |
| import org.bouncycastle.asn1.*; |
| import org.bouncycastle.asn1.x509.AlgorithmIdentifier; |
| import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; |
| import org.bouncycastle.asn1.x509.TBSCertificateStructure; |
| import org.bouncycastle.asn1.x509.Time; |
| import org.bouncycastle.asn1.x509.V3TBSCertificateGenerator; |
| import org.bouncycastle.asn1.x509.X509CertificateStructure; |
| import org.bouncycastle.asn1.x509.X509Extension; |
| import org.bouncycastle.asn1.x509.X509Extensions; |
| import org.bouncycastle.asn1.x509.X509Name; |
| import org.bouncycastle.jce.X509Principal; |
| import org.bouncycastle.jce.provider.X509CertificateObject; |
| import org.bouncycastle.x509.extension.X509ExtensionUtil; |
| |
| /** |
| * class to produce an X.509 Version 3 certificate. |
| */ |
| public class X509V3CertificateGenerator |
| { |
| private V3TBSCertificateGenerator tbsGen; |
| private DERObjectIdentifier sigOID; |
| private AlgorithmIdentifier sigAlgId; |
| private String signatureAlgorithm; |
| private Hashtable extensions = null; |
| private Vector extOrdering = null; |
| |
| public X509V3CertificateGenerator() |
| { |
| tbsGen = new V3TBSCertificateGenerator(); |
| } |
| |
| /** |
| * reset the generator |
| */ |
| public void reset() |
| { |
| tbsGen = new V3TBSCertificateGenerator(); |
| extensions = null; |
| extOrdering = null; |
| } |
| |
| /** |
| * set the serial number for the certificate. |
| */ |
| public void setSerialNumber( |
| BigInteger serialNumber) |
| { |
| if (serialNumber.compareTo(BigInteger.ZERO) <= 0) |
| { |
| throw new IllegalArgumentException("serial number must be a positive integer"); |
| } |
| |
| tbsGen.setSerialNumber(new DERInteger(serialNumber)); |
| } |
| |
| /** |
| * Set the issuer distinguished name - the issuer is the entity whose private key is used to sign the |
| * certificate. |
| */ |
| public void setIssuerDN( |
| X500Principal issuer) |
| { |
| try |
| { |
| tbsGen.setIssuer(new X509Principal(issuer.getEncoded())); |
| } |
| catch (IOException e) |
| { |
| throw new IllegalArgumentException("can't process principal: " + e); |
| } |
| } |
| |
| /** |
| * Set the issuer distinguished name - the issuer is the entity whose private key is used to sign the |
| * certificate. |
| */ |
| public void setIssuerDN( |
| X509Name issuer) |
| { |
| tbsGen.setIssuer(issuer); |
| } |
| |
| public void setNotBefore( |
| Date date) |
| { |
| tbsGen.setStartDate(new Time(date)); |
| } |
| |
| public void setNotAfter( |
| Date date) |
| { |
| tbsGen.setEndDate(new Time(date)); |
| } |
| |
| /** |
| * Set the subject distinguished name. The subject describes the entity associated with the public key. |
| */ |
| public void setSubjectDN( |
| X500Principal subject) |
| { |
| try |
| { |
| tbsGen.setSubject(new X509Principal(subject.getEncoded())); |
| } |
| catch (IOException e) |
| { |
| throw new IllegalArgumentException("can't process principal: " + e); |
| } |
| } |
| |
| /** |
| * Set the subject distinguished name. The subject describes the entity associated with the public key. |
| */ |
| public void setSubjectDN( |
| X509Name subject) |
| { |
| tbsGen.setSubject(subject); |
| } |
| |
| public void setPublicKey( |
| PublicKey key) |
| { |
| try |
| { |
| tbsGen.setSubjectPublicKeyInfo(new SubjectPublicKeyInfo((ASN1Sequence)new ASN1InputStream( |
| new ByteArrayInputStream(key.getEncoded())).readObject())); |
| } |
| catch (Exception e) |
| { |
| throw new IllegalArgumentException("unable to process key - " + e.toString()); |
| } |
| } |
| |
| /** |
| * Set the signature algorithm. This can be either a name or an OID, names |
| * are treated as case insensitive. |
| * |
| * @param signatureAlgorithm string representation of the algorithm name. |
| */ |
| public void setSignatureAlgorithm( |
| String signatureAlgorithm) |
| { |
| this.signatureAlgorithm = signatureAlgorithm; |
| |
| try |
| { |
| sigOID = X509Util.getAlgorithmOID(signatureAlgorithm); |
| } |
| catch (Exception e) |
| { |
| throw new IllegalArgumentException("Unknown signature type requested: " + signatureAlgorithm); |
| } |
| |
| sigAlgId = X509Util.getSigAlgID(sigOID); |
| |
| tbsGen.setSignature(sigAlgId); |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| */ |
| public void addExtension( |
| String oid, |
| boolean critical, |
| DEREncodable value) |
| { |
| this.addExtension(new DERObjectIdentifier(oid), critical, value); |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| */ |
| public void addExtension( |
| DERObjectIdentifier oid, |
| boolean critical, |
| DEREncodable value) |
| { |
| if (extensions == null) |
| { |
| extensions = new Hashtable(); |
| extOrdering = new Vector(); |
| } |
| |
| ByteArrayOutputStream bOut = new ByteArrayOutputStream(); |
| DEROutputStream dOut = new DEROutputStream(bOut); |
| |
| try |
| { |
| dOut.writeObject(value); |
| } |
| catch (IOException e) |
| { |
| throw new IllegalArgumentException("error encoding value: " + e); |
| } |
| |
| this.addExtension(oid, critical, bOut.toByteArray()); |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| * The value parameter becomes the contents of the octet string associated |
| * with the extension. |
| */ |
| public void addExtension( |
| String oid, |
| boolean critical, |
| byte[] value) |
| { |
| this.addExtension(new DERObjectIdentifier(oid), critical, value); |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| */ |
| public void addExtension( |
| DERObjectIdentifier oid, |
| boolean critical, |
| byte[] value) |
| { |
| if (extensions == null) |
| { |
| extensions = new Hashtable(); |
| extOrdering = new Vector(); |
| } |
| |
| extensions.put(oid, new X509Extension(critical, new DEROctetString(value))); |
| extOrdering.addElement(oid); |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| * copying the extension value from another certificate. |
| * @throws CertificateParsingException if the extension cannot be extracted. |
| */ |
| public void copyAndAddExtension( |
| String oid, |
| boolean critical, |
| X509Certificate cert) |
| throws CertificateParsingException |
| { |
| byte[] extValue = cert.getExtensionValue(oid); |
| |
| if (extValue == null) |
| { |
| throw new CertificateParsingException("extension " + oid + " not present"); |
| } |
| |
| try |
| { |
| ASN1Encodable value = X509ExtensionUtil.fromExtensionValue(extValue); |
| |
| this.addExtension(oid, critical, value); |
| } |
| catch (IOException e) |
| { |
| throw new CertificateParsingException(e.toString()); |
| } |
| } |
| |
| /** |
| * add a given extension field for the standard extensions tag (tag 3) |
| * copying the extension value from another certificate. |
| * @throws CertificateParsingException if the extension cannot be extracted. |
| */ |
| public void copyAndAddExtension( |
| DERObjectIdentifier oid, |
| boolean critical, |
| X509Certificate cert) |
| throws CertificateParsingException |
| { |
| this.copyAndAddExtension(oid.getId(), critical, cert); |
| } |
| |
| /** |
| * generate an X509 certificate, based on the current issuer and subject |
| * using the default provider "BC". |
| */ |
| public X509Certificate generateX509Certificate( |
| PrivateKey key) |
| throws SecurityException, SignatureException, InvalidKeyException |
| { |
| try |
| { |
| return generateX509Certificate(key, "BC", null); |
| } |
| catch (NoSuchProviderException e) |
| { |
| throw new SecurityException("BC provider not installed!"); |
| } |
| } |
| |
| /** |
| * generate an X509 certificate, based on the current issuer and subject |
| * using the default provider "BC", and the passed in source of randomness |
| * (if required). |
| */ |
| public X509Certificate generateX509Certificate( |
| PrivateKey key, |
| SecureRandom random) |
| throws SecurityException, SignatureException, InvalidKeyException |
| { |
| try |
| { |
| return generateX509Certificate(key, "BC", random); |
| } |
| catch (NoSuchProviderException e) |
| { |
| throw new SecurityException("BC provider not installed!"); |
| } |
| } |
| |
| /** |
| * generate an X509 certificate, based on the current issuer and subject, |
| * using the passed in provider for the signing. |
| */ |
| public X509Certificate generateX509Certificate( |
| PrivateKey key, |
| String provider) |
| throws NoSuchProviderException, SecurityException, SignatureException, InvalidKeyException |
| { |
| return generateX509Certificate(key, provider, null); |
| } |
| |
| /** |
| * generate an X509 certificate, based on the current issuer and subject, |
| * using the passed in provider for the signing and the supplied source |
| * of randomness, if required. |
| */ |
| public X509Certificate generateX509Certificate( |
| PrivateKey key, |
| String provider, |
| SecureRandom random) |
| throws NoSuchProviderException, SecurityException, SignatureException, InvalidKeyException |
| { |
| Signature sig = null; |
| |
| if (sigOID == null) |
| { |
| throw new IllegalStateException("no signature algorithm specified"); |
| } |
| |
| try |
| { |
| sig = Signature.getInstance(sigOID.getId(), provider); |
| } |
| catch (NoSuchAlgorithmException ex) |
| { |
| try |
| { |
| sig = Signature.getInstance(signatureAlgorithm, provider); |
| } |
| catch (NoSuchAlgorithmException e) |
| { |
| throw new SecurityException("exception creating signature: " + e.toString()); |
| } |
| } |
| |
| if (random != null) |
| { |
| sig.initSign(key, random); |
| } |
| else |
| { |
| sig.initSign(key); |
| } |
| |
| if (extensions != null) |
| { |
| tbsGen.setExtensions(new X509Extensions(extOrdering, extensions)); |
| } |
| |
| TBSCertificateStructure tbsCert = tbsGen.generateTBSCertificate(); |
| |
| try |
| { |
| ByteArrayOutputStream bOut = new ByteArrayOutputStream(); |
| DEROutputStream dOut = new DEROutputStream(bOut); |
| |
| dOut.writeObject(tbsCert); |
| |
| sig.update(bOut.toByteArray()); |
| } |
| catch (Exception e) |
| { |
| throw new SecurityException("exception encoding TBS cert - " + e); |
| } |
| |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| v.add(tbsCert); |
| v.add(sigAlgId); |
| v.add(new DERBitString(sig.sign())); |
| |
| return new X509CertificateObject(new X509CertificateStructure(new DERSequence(v))); |
| } |
| |
| /** |
| * Return an iterator of the signature names supported by the generator. |
| * |
| * @return an iterator containing recognised names. |
| */ |
| public Iterator getSignatureAlgNames() |
| { |
| return X509Util.getAlgNames(); |
| } |
| } |