Example usage for org.bouncycastle.asn1.x509 V1TBSCertificateGenerator setSubjectPublicKeyInfo

Introduction

In this page you can find the example usage for org.bouncycastle.asn1.x509 V1TBSCertificateGenerator setSubjectPublicKeyInfo.

Prototype

public void setSubjectPublicKeyInfo(SubjectPublicKeyInfo pubKeyInfo) 

Source Link

Usage

From source file:com.vmware.identity.rest.core.test.util.CertificateGenerator.java

License:Open Source License

/**
 * Generate a self-signed X.509 certificate
 *
 * @param pair the key pair to use when signing the certificate
 * @param algorithm the signing algorithm to use
 * @param dn the X.509 distinguished name for the certificate
 * @return a self-signed X.509 certificate
 * @throws NoSuchAlgorithmException/*w  ww  .j  a va  2s. c  o m*/
 * @throws NoSuchProviderException
 * @throws InvalidKeyException
 * @throws SignatureException
 * @throws IOException
 * @throws CertificateException
 */
public static X509Certificate generateSelfSignedCertificate(KeyPair pair, AlgorithmName algorithm, String dn)
        throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException, SignatureException,
        IOException, CertificateException {
    if (Security.getProvider("BC") == null) {
        Security.addProvider(new BouncyCastleProvider());
    }

    AtomicLong serialNumber = new AtomicLong(System.currentTimeMillis());
    X500Name owner = new X500Name(dn);

    V1TBSCertificateGenerator generator = new V1TBSCertificateGenerator();
    long time = System.currentTimeMillis();

    generator.setSerialNumber(new ASN1Integer(serialNumber.getAndIncrement()));
    generator.setIssuer(owner);
    generator.setSubject(owner);
    generator.setStartDate(new Time(new Date(time - 5000)));
    generator.setEndDate(new Time(new Date(time + 30 * 60 * 1000)));
    generator.setSignature(ALGORITHM_IDS.get(algorithm));
    generator.setSubjectPublicKeyInfo(SubjectPublicKeyInfo.getInstance(pair.getPublic().getEncoded()));

    Signature sig = Signature.getInstance(algorithm.toString(), "BC");

    sig.initSign(pair.getPrivate());

    sig.update(generator.generateTBSCertificate().getEncoded(ASN1Encoding.DER));

    TBSCertificate tbsCert = generator.generateTBSCertificate();

    ASN1EncodableVector v = new ASN1EncodableVector();

    v.add(tbsCert);
    v.add(ALGORITHM_IDS.get(algorithm));
    v.add(new DERBitString(sig.sign()));

    return (X509Certificate) CertificateFactory.getInstance("X.509", "BC")
            .generateCertificate(new ByteArrayInputStream(new DERSequence(v).getEncoded(ASN1Encoding.DER)));
}

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