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January 29, 2018 08:16
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Java para generar Ca con intermediate
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| import org.bouncycastle.asn1.DERBMPString; | |
| import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; | |
| import org.bouncycastle.asn1.x500.X500Name; | |
| import org.bouncycastle.asn1.x500.X500NameBuilder; | |
| import org.bouncycastle.asn1.x500.style.BCStyle; | |
| import org.bouncycastle.asn1.x509.BasicConstraints; | |
| import org.bouncycastle.asn1.x509.Extension; | |
| import org.bouncycastle.asn1.x509.GeneralName; | |
| import org.bouncycastle.asn1.x509.GeneralNames; | |
| import org.bouncycastle.cert.X509CertificateHolder; | |
| import org.bouncycastle.cert.X509v1CertificateBuilder; | |
| import org.bouncycastle.cert.X509v3CertificateBuilder; | |
| import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter; | |
| import org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils; | |
| import org.bouncycastle.cert.jcajce.JcaX509v1CertificateBuilder; | |
| import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder; | |
| import org.bouncycastle.jce.interfaces.PKCS12BagAttributeCarrier; | |
| import org.bouncycastle.jce.provider.BouncyCastleProvider; | |
| import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder; | |
| import java.io.FileOutputStream; | |
| import java.math.BigInteger; | |
| import java.security.*; | |
| import java.security.cert.Certificate; | |
| import java.security.cert.X509Certificate; | |
| import java.util.Date; | |
| public class TestCerts { | |
| private static char[] passwd = {'s', 'e', 'c', 'r', 'e', 't'}; | |
| private static String domain = "test.nextagiledev.com"; | |
| private static String organization = "NextAgileSoft Development"; | |
| private static String country = "ES"; | |
| /** | |
| * we generate the CA's certificate | |
| */ | |
| public static Certificate createMasterCert( | |
| PublicKey pubKey, | |
| PrivateKey privKey) | |
| throws Exception { | |
| // | |
| // signers name | |
| // | |
| String issuer = String.format("C=%s, O=%s, OU=Nextagilesoft Primary Certificate", country, organization); | |
| // | |
| // subjects name - the same as we are self signed. | |
| // | |
| String subject = String.format("C=%s, O=%s, OU=Nextagilesoft Primary Certificate", country, organization); | |
| // | |
| // create the certificate - version 1 | |
| // | |
| X509v1CertificateBuilder v1Bldr = new JcaX509v1CertificateBuilder(new X500Name(issuer), BigInteger.valueOf(1), | |
| new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30), new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 30)), | |
| new X500Name(subject), pubKey); | |
| X509CertificateHolder certHldr = v1Bldr.build(new JcaContentSignerBuilder("SHA256WithRSA").setProvider("BC").build(privKey)); | |
| X509Certificate cert = new JcaX509CertificateConverter().setProvider("BC").getCertificate(certHldr); | |
| cert.checkValidity(new Date()); | |
| cert.verify(pubKey); | |
| PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) cert; | |
| // | |
| // this is actually optional - but if you want to have control | |
| // over setting the friendly name this is the way to do it... | |
| // | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_friendlyName, | |
| new DERBMPString("Nextagilesoft Primary Certificate")); | |
| return cert; | |
| } | |
| /** | |
| * we generate an intermediate certificate signed by our CA | |
| */ | |
| public static Certificate createIntermediateCert( | |
| PublicKey pubKey, | |
| PrivateKey caPrivKey, | |
| X509Certificate caCert) | |
| throws Exception { | |
| // | |
| // subject name builder. | |
| // | |
| X500NameBuilder nameBuilder = new X500NameBuilder(); | |
| nameBuilder.addRDN(BCStyle.C, "ES"); | |
| nameBuilder.addRDN(BCStyle.O, organization); | |
| nameBuilder.addRDN(BCStyle.OU, "Nextagilesoft Intermediate Certificate"); | |
| nameBuilder.addRDN(BCStyle.EmailAddress, "feedback-crypto@bouncycastle.org"); | |
| // | |
| // create the certificate - version 3 | |
| // | |
| X509v3CertificateBuilder v3Bldr = new JcaX509v3CertificateBuilder(caCert, BigInteger.valueOf(2), | |
| new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30), new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 30)), | |
| nameBuilder.build(), pubKey); | |
| // | |
| // extensions | |
| // | |
| JcaX509ExtensionUtils extUtils = new JcaX509ExtensionUtils(); | |
| v3Bldr.addExtension( | |
| Extension.subjectKeyIdentifier, | |
| false, | |
| extUtils.createSubjectKeyIdentifier(pubKey)); | |
| v3Bldr.addExtension( | |
| Extension.authorityKeyIdentifier, | |
| false, | |
| extUtils.createAuthorityKeyIdentifier(caCert)); | |
| v3Bldr.addExtension( | |
| Extension.basicConstraints, | |
| true, | |
| new BasicConstraints(0)); | |
| X509CertificateHolder certHldr = v3Bldr.build(new JcaContentSignerBuilder("SHA256WithRSA").setProvider("BC").build(caPrivKey)); | |
| X509Certificate cert = new JcaX509CertificateConverter().setProvider("BC").getCertificate(certHldr); | |
| cert.checkValidity(new Date()); | |
| cert.verify(caCert.getPublicKey()); | |
| PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) cert; | |
| // | |
| // this is actually optional - but if you want to have control | |
| // over setting the friendly name this is the way to do it... | |
| // | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_friendlyName, | |
| new DERBMPString("Nextagilesoft Intermediate Certificate")); | |
| return cert; | |
| } | |
| /** | |
| * we generate a certificate signed by our CA's intermediate certificate | |
| */ | |
| public static Certificate createCert( | |
| PublicKey pubKey, | |
| PrivateKey caPrivKey, | |
| PublicKey caPubKey) | |
| throws Exception { | |
| // | |
| // signers name table. | |
| // | |
| X500NameBuilder issuerBuilder = new X500NameBuilder(); | |
| issuerBuilder.addRDN(BCStyle.C, country); | |
| issuerBuilder.addRDN(BCStyle.O, organization); | |
| issuerBuilder.addRDN(BCStyle.OU, "Nextagilesoft Intermediate Certificate"); | |
| issuerBuilder.addRDN(BCStyle.CN, "Nextagilesoft"); | |
| issuerBuilder.addRDN(BCStyle.EmailAddress, "feedback-crypto@bouncycastle.org"); | |
| // | |
| // subjects name table. | |
| // | |
| X500NameBuilder subjectBuilder = new X500NameBuilder(); | |
| subjectBuilder.addRDN(BCStyle.C, country); | |
| subjectBuilder.addRDN(BCStyle.O, organization); | |
| subjectBuilder.addRDN(BCStyle.L, "Alicante"); | |
| subjectBuilder.addRDN(BCStyle.CN, domain); | |
| subjectBuilder.addRDN(BCStyle.EmailAddress, "feedback-crypto@bouncycastle.org"); | |
| // | |
| // create the certificate - version 3 | |
| // | |
| X509v3CertificateBuilder v3Bldr = new JcaX509v3CertificateBuilder(issuerBuilder.build(), BigInteger.valueOf(3), | |
| new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30), new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 30)), | |
| subjectBuilder.build(), pubKey); | |
| // | |
| // extensions | |
| // | |
| JcaX509ExtensionUtils extUtils = new JcaX509ExtensionUtils(); | |
| v3Bldr.addExtension(Extension.subjectAlternativeName, false, new GeneralNames(new GeneralName(GeneralName.dNSName, domain))); | |
| v3Bldr.addExtension( | |
| Extension.subjectKeyIdentifier, | |
| false, | |
| extUtils.createSubjectKeyIdentifier(pubKey)); | |
| v3Bldr.addExtension( | |
| Extension.authorityKeyIdentifier, | |
| false, | |
| extUtils.createAuthorityKeyIdentifier(caPubKey)); | |
| X509CertificateHolder certHldr = v3Bldr.build(new JcaContentSignerBuilder("SHA256WithRSA").setProvider("BC").build(caPrivKey)); | |
| X509Certificate cert = new JcaX509CertificateConverter().setProvider("BC").getCertificate(certHldr); | |
| cert.checkValidity(new Date()); | |
| cert.verify(caPubKey); | |
| PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) cert; | |
| // | |
| // this is also optional - in the sense that if you leave this | |
| // out the keystore will add it automatically, note though that | |
| // for the browser to recognise the associated private key this | |
| // you should at least use the pkcs_9_localKeyId OID and set it | |
| // to the same as you do for the private key's localKeyId. | |
| // | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_friendlyName, | |
| new DERBMPString("Eric's Key")); | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_localKeyId, | |
| extUtils.createSubjectKeyIdentifier(pubKey)); | |
| return cert; | |
| } | |
| public static void main( | |
| String[] args) | |
| throws Exception { | |
| Security.addProvider(new BouncyCastleProvider()); | |
| // | |
| // set up the keys | |
| // | |
| final KeyPair caKp = CertsUtil.generateKeyPair(); | |
| PrivateKey caPrivKey = caKp.getPrivate(); | |
| PublicKey caPubKey = caKp.getPublic(); | |
| final KeyPair intKp = CertsUtil.generateKeyPair(); | |
| PrivateKey intPrivKey = intKp.getPrivate(); | |
| PublicKey intPubKey = intKp.getPublic(); | |
| final KeyPair certKp = CertsUtil.generateKeyPair(); | |
| PrivateKey privKey = certKp.getPrivate(); | |
| PublicKey pubKey = certKp.getPublic(); | |
| final KeyPair clientCertKp = CertsUtil.generateKeyPair(); | |
| PrivateKey clientPrivKey = clientCertKp.getPrivate(); | |
| PublicKey clientPubKey = clientCertKp.getPublic(); | |
| Certificate[] chain = new Certificate[3]; | |
| final Certificate masterCert = createMasterCert(caPubKey, caPrivKey); | |
| CertsUtil.writeCert(masterCert, "./certs/ca.crt"); | |
| CertsUtil.writePk("./certs/ca.key", caKp); | |
| chain[2] = masterCert; | |
| final Certificate intermediateCert = createIntermediateCert(intPubKey, caPrivKey, (X509Certificate) chain[2]); | |
| CertsUtil.writeCert(intermediateCert, "./certs/intermediate-ca.crt"); | |
| CertsUtil.writePk("./certs/intermediate-ca.key", intKp); | |
| chain[1] = intermediateCert; | |
| final Certificate cert = createCert(pubKey, intPrivKey, intPubKey); | |
| CertsUtil.writeCert(cert, "./certs/server.crt"); | |
| CertsUtil.writePk("./certs/server.key", certKp); | |
| chain[0] = cert; | |
| // final Certificate clientCert = createCert(clientPubKey, caPrivKey, caPubKey); | |
| // CertsUtil.writeCert(clientCert, "./certs/client.crt"); | |
| // CertsUtil.writePk("./certs/client.key", clientCertKp); | |
| // | |
| // add the friendly name for the private key | |
| // | |
| PKCS12BagAttributeCarrier bagAttr = (PKCS12BagAttributeCarrier) privKey; | |
| // | |
| // this is also optional - in the sense that if you leave this | |
| // out the keystore will add it automatically, note though that | |
| // for the browser to recognise which certificate the private key | |
| // is associated with you should at least use the pkcs_9_localKeyId | |
| // OID and set it to the same as you do for the private key's | |
| // corresponding certificate. | |
| // | |
| JcaX509ExtensionUtils extUtils = new JcaX509ExtensionUtils(); | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_friendlyName, | |
| new DERBMPString("Development's Key")); | |
| bagAttr.setBagAttribute( | |
| PKCSObjectIdentifiers.pkcs_9_at_localKeyId, | |
| extUtils.createSubjectKeyIdentifier(pubKey)); | |
| // | |
| // store the key and the certificate chain | |
| // | |
| KeyStore store = KeyStore.getInstance("PKCS12", "BC"); | |
| store.load(null, null); | |
| // | |
| // if you haven't set the friendly name and local key id above | |
| // the name below will be the name of the key | |
| // | |
| store.setKeyEntry("Development's Key", privKey, null, chain); | |
| FileOutputStream fOut = new FileOutputStream("id.p12"); | |
| store.store(fOut, passwd); | |
| fOut.close(); | |
| } | |
| } |
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