Example usage for org.bouncycastle.jce PKCS10CertificationRequest verify

Introduction

In this page you can find the example usage for org.bouncycastle.jce PKCS10CertificationRequest verify.

Prototype

public boolean verify(String provider)
        throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException, SignatureException 

Source Link

Document

verify the request using the passed in provider.

Usage

From source file:chapter6.PKCS10CertCreateExample.java

public static X509Certificate[] buildChain() throws Exception {
    // Create the certification request
    KeyPair pair = Utils.generateRSAKeyPair();

    PKCS10CertificationRequest request = PKCS10ExtensionExample.generateRequest(pair);

    // Create a root certificate
    KeyPair rootPair = Utils.generateRSAKeyPair();
    X509Certificate rootCert = X509V1CreateExample.generateV1Certificate(rootPair);

    // Validate the certification request
    if (request.verify("BC") == false) {
        System.out.println("Request failed to verify!!");
        System.exit(1);/*from  ww  w  . jav  a 2  s.  c o m*/
    }

    // Create the certificate using the information in the request
    X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();

    certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
    certGen.setIssuerDN(rootCert.getSubjectX500Principal());
    certGen.setNotBefore(new Date(System.currentTimeMillis()));
    certGen.setNotAfter(new Date(System.currentTimeMillis() + 50000));
    certGen.setSubjectDN(new X500Principal(request.getCertificationRequestInfo().getSubject().getEncoded()));
    certGen.setPublicKey(request.getPublicKey("BC"));
    certGen.setSignatureAlgorithm("SHA256WithRSAEncryption");

    certGen.addExtension(X509Extensions.AuthorityKeyIdentifier, false,
            new AuthorityKeyIdentifierStructure(rootCert));
    certGen.addExtension(X509Extensions.SubjectKeyIdentifier, false,
            new SubjectKeyIdentifierStructure(request.getPublicKey("BC")));
    certGen.addExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
    certGen.addExtension(X509Extensions.KeyUsage, true,
            new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment));
    certGen.addExtension(X509Extensions.ExtendedKeyUsage, true,
            new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth));

    // Extract the extension request attribute
    ASN1Set attributes = request.getCertificationRequestInfo().getAttributes();

    for (int i = 0; i < attributes.size(); i++) {
        Attribute attr = Attribute.getInstance(attributes.getObjectAt(i));

        // Process extension request
        if (attr.getAttrType().equals(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest)) {
            X509Extensions extensions = X509Extensions.getInstance(attr.getAttrValues().getObjectAt(0));

            Enumeration e = extensions.oids();
            while (e.hasMoreElements()) {
                DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                X509Extension ext = extensions.getExtension(oid);

                certGen.addExtension(oid, ext.isCritical(), ext.getValue().getOctets());
            }
        }
    }

    X509Certificate issuedCert = certGen.generateX509Certificate(rootPair.getPrivate());

    return new X509Certificate[] { issuedCert, rootCert };
}

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From source file:io.aos.crypto.spl06.PKCS10CertCreateExample.java

License:Apache License

public static X509Certificate[] buildChain() throws Exception {
    // create the certification request
    KeyPair pair = Utils.generateRSAKeyPair();

    PKCS10CertificationRequest request = PKCS10ExtensionExample.generateRequest(pair);

    // create a root certificate
    KeyPair rootPair = Utils.generateRSAKeyPair();
    X509Certificate rootCert = X509V1CreateExample.generateV1Certificate(rootPair);

    // validate the certification request
    if (!request.verify("BC")) {
        System.out.println("request failed to verify!");
        System.exit(1);/*from www .  java  2  s  .  c om*/
    }

    // create the certificate using the information in the request
    X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();

    certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
    certGen.setIssuerDN(rootCert.getSubjectX500Principal());
    certGen.setNotBefore(new Date(System.currentTimeMillis()));
    certGen.setNotAfter(new Date(System.currentTimeMillis() + 50000));
    certGen.setSubjectDN(request.getCertificationRequestInfo().getSubject());
    certGen.setPublicKey(request.getPublicKey("BC"));
    certGen.setSignatureAlgorithm("SHA256WithRSAEncryption");

    certGen.addExtension(X509Extensions.AuthorityKeyIdentifier, false,
            new AuthorityKeyIdentifierStructure(rootCert));

    certGen.addExtension(X509Extensions.SubjectKeyIdentifier, false,
            new SubjectKeyIdentifierStructure(request.getPublicKey("BC")));

    certGen.addExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));

    certGen.addExtension(X509Extensions.KeyUsage, true,
            new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment));

    certGen.addExtension(X509Extensions.ExtendedKeyUsage, true,
            new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth));

    // extract the extension request attribute
    ASN1Set attributes = request.getCertificationRequestInfo().getAttributes();

    for (int i = 0; i != attributes.size(); i++) {
        Attribute attr = Attribute.getInstance(attributes.getObjectAt(i));

        // process extension request
        if (attr.getAttrType().equals(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest)) {
            X509Extensions extensions = X509Extensions.getInstance(attr.getAttrValues().getObjectAt(0));

            Enumeration e = extensions.oids();
            while (e.hasMoreElements()) {
                DERObjectIdentifier oid = (DERObjectIdentifier) e.nextElement();
                X509Extension ext = extensions.getExtension(oid);

                certGen.addExtension(oid, ext.isCritical(), ext.getValue().getOctets());
            }
        }
    }

    X509Certificate issuedCert = certGen.generateX509Certificate(rootPair.getPrivate());

    return new X509Certificate[] { issuedCert, rootCert };
}

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From source file:org.opcfoundation.ua.utils.CertificateUtils.java

License:Open Source License

/**
 * generates new certificate chain and returns it..
 * first certificate in the returned chain is the issued certificate and the second one is CA certificate
 * /*from   w  w  w. java  2s . c  om*/
 * @return certificates 
 * @throws Exception
 */
public static X509Certificate[] createCertificateChain() throws Exception {

    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    // create the keys
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA", "BC");
    keyGen.initialize(1024, new SecureRandom());
    KeyPair pair = keyGen.generateKeyPair();

    X509Certificate rootCert = generateRootCertificate(pair);

    //Create certificate request
    PKCS10CertificationRequest request = createCertificateRequest();

    // validate the certification request
    if (!request.verify("BC")) {
        System.out.println("request failed to verify!");
        System.exit(1);
    }

    // create the certificate using the information in the request
    X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();

    certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
    certGen.setIssuerDN(rootCert.getSubjectX500Principal());
    certGen.setNotBefore(new Date(System.currentTimeMillis()));
    certGen.setNotAfter(new Date(System.currentTimeMillis() + 50000));
    certGen.setSubjectDN(request.getCertificationRequestInfo().getSubject());
    certGen.setPublicKey(request.getPublicKey("BC"));
    certGen.setSignatureAlgorithm("SHA256WithRSAEncryption");

    certGen.addExtension(X509Extensions.AuthorityKeyIdentifier, false,
            new AuthorityKeyIdentifierStructure(rootCert));
    certGen.addExtension(X509Extensions.SubjectKeyIdentifier, false,
            new SubjectKeyIdentifierStructure(request.getPublicKey("BC")));
    certGen.addExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
    certGen.addExtension(X509Extensions.KeyUsage, true,
            new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment));
    certGen.addExtension(X509Extensions.ExtendedKeyUsage, true,
            new ExtendedKeyUsage(KeyPurposeId.id_kp_serverAuth));

    X509Certificate issuedCert = certGen.generate(pair.getPrivate());
    X509Certificate[] chain = { issuedCert, rootCert };

    //Write certificates to file so we are able to retrieve the also te private key
    /* URL certURL = CertificateUtils.class.getResource( "createdCerts.pem" );
             
     URLConnection connection = certURL.openConnection();
    InputStream is = connection.getInputStream();
     CertificateFactory servercf = CertificateFactory.getInstance("X.509");
    X509Certificate cert = (X509Certificate) servercf.generateCertificate(is);
            
    PEMWriter        testWriter = new PEMWriter(new OutputStreamWriter(System.out));
    testWriter.writeObject(cert);*/
    return chain;
}

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