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wolfssljni/examples/X509v3CertificateGeneration...

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/* X509v3CertificateGeneration.java
*
* Copyright (C) 2006-2025 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
import java.io.*;
import java.net.*;
import java.nio.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.time.Instant;
import java.time.Duration;
import java.util.Date;
import java.math.BigInteger;
import java.io.FileInputStream;
import java.security.KeyFactory;
import java.security.KeyPairGenerator;
import java.security.KeyPair;
import java.security.PublicKey;
import java.security.PrivateKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.InvalidKeySpecException;
import java.security.interfaces.RSAPrivateKey;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.security.cert.CertificateException;
import com.wolfssl.WolfSSL;
import com.wolfssl.WolfSSLCertificate;
import com.wolfssl.WolfSSLX509Name;
import com.wolfssl.WolfSSLException;
import com.wolfssl.WolfSSLJNIException;
/**
* Example application that demonstrates X509v3 certifiate generation
* including various combinations:
*
* Self-signed certificate using files as input for certs/keys
* Self-signed certificate using arrays as input for certs/keys
* Self-signed certificate using generated certs and keys
*
* CA-signed certificate using files as input for certs/keys
* CA-signed certificate using arrays as input for certs/keys
* CA-signed certificate using generated certs and keys
*
* Each sub-example is contained in a separate method.
*
* When run, generated certificates are written out to PEM and DER files,
* with location specified by variables at the top of this class.
*/
public class X509v3CertificateGeneration {
private static String CERT_DIR = "../certs/";
private static String GEN_DIR = CERT_DIR + "generated/";
private static String CERT_DIR_FROM_ROOT = "./exammples/certs/generated/";
/* Existing certs/keys used for cert gen example with files */
private static String caCertPem = CERT_DIR + "ca-cert.pem";
private static String caKeyDer = CERT_DIR + "ca-key.der";
private static String caKeyPkcs8Der = CERT_DIR + "ca-keyPkcs8.der";
private static String clientKeyDer = CERT_DIR + "client-key.der";
private static String clientKeyPubDer = CERT_DIR + "client-keyPub.der";
/* Generated self-signed certificate locations.
* Generated self-signed certs have isCA Basic Constraint set true
* in these examples. */
private static String selfSignedUsingFilesDer =
GEN_DIR + "self-signed-using-files.der";
private static String selfSignedUsingFilesPem =
GEN_DIR + "self-signed-using-files.pem";
private static String selfSignedUsingArraysDer =
GEN_DIR + "self-signed-using-arrays.der";
private static String selfSignedUsingArraysPem =
GEN_DIR + "self-signed-using-arrays.pem";
private static String selfSignedUsingGeneratedKeysDer =
GEN_DIR + "self-signed-generated-keys.der";
private static String selfSignedUsingGeneratedKeysPem =
GEN_DIR + "self-signed-generated-keys.pem";
/* Generated CA-signed certificate locations.
* Generated CA-signed certs have isCA Basic Constraint set false
* in these examples. */
private static String caSignedUsingFilesDer =
GEN_DIR + "ca-signed-using-files.der";
private static String caSignedUsingFilesPem =
GEN_DIR + "ca-signed-using-files.pem";
private static String caSignedUsingArraysDer =
GEN_DIR + "ca-signed-using-arrays.der";
private static String caSignedUsingArraysPem =
GEN_DIR + "ca-signed-using-arrays.pem";
private static String caSignedUsingGeneratedKeysDer =
GEN_DIR + "ca-signed-generated-keys.der";
private static String caSignedUsingGeneratedKeysPem =
GEN_DIR + "ca-signed-generated-keys.pem";
/* Example Extension values */
private static String test_KEY_USAGE =
"digitalSignature,keyEncipherment,dataEncipherment";
private static String test_EXT_KEY_USAGE =
"clientAuth,serverAuth";
private static String test_ALT_NAME =
"alt.example.com";
private void writeFile(String path, byte[] bytes)
throws IOException {
File genDir = new File(GEN_DIR);
if (!genDir.exists()) {
genDir.mkdir();
}
Files.write(new File(path).toPath(), bytes);
}
private WolfSSLX509Name generateTestSubjectName()
throws WolfSSLException {
WolfSSLX509Name subjectName = new WolfSSLX509Name();
subjectName.setCountryName("US");
subjectName.setStateOrProvinceName("Montana");
subjectName.setStreetAddress("12345 Test Address");
subjectName.setLocalityName("Bozeman");
subjectName.setSurname("Test Surname");
subjectName.setCommonName("example.com");
subjectName.setEmailAddress("support@example.com");
subjectName.setOrganizationName("wolfSSL Inc.");
subjectName.setOrganizationalUnitName("Test and Development");
subjectName.setPostalCode("59715");
subjectName.setUserId("TestUserID");
return subjectName;
}
/**
* Generate example certificate using the following files as input
* to the certificate generation process:
*
* clientKeyPubDer - Existing client public key in DER format
* clientKeyDer - Existing client private key in DER format
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* selfSignedUsingFilesDer (DER format)
* selfSignedUsingFilesPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateSelfSignedUsingFiles()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException {
System.out.print("\nGenerating self-signed cert using files");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Not setting Issuer, since generating self-signed cert */
/* Set Public Key from existing public key DER file */
x509.setPublicKey(clientKeyPubDer, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, self-signed using existing client key DER */
x509.signCert(clientKeyDer, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(selfSignedUsingFilesDer, derCert);
writeFile(selfSignedUsingFilesPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingFilesDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingFilesPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
/**
* Generate example certificate using the following files in array format
* as input to the certificate generation process:
*
* clientKeyPubDer - Existing client public key in DER format
* clientKeyDer - Existing client private key in DER format
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* selfSignedUsingArraysDer (DER format)
* selfSignedUsingArraysPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateSelfSignedUsingArrays()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException {
System.out.print("\nGenerating self-signed cert using arrays");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Not setting Issuer, since generating self-signed cert */
/* Set Public Key from existing public key DER file */
byte[] pubKey = Files.readAllBytes(Paths.get(clientKeyPubDer));
x509.setPublicKey(pubKey, WolfSSL.RSAk, WolfSSL.SSL_FILETYPE_ASN1);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, self-signed using existing client key DER */
byte[] privKey = Files.readAllBytes(Paths.get(clientKeyDer));
x509.signCert(privKey, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(selfSignedUsingArraysDer, derCert);
writeFile(selfSignedUsingArraysPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingArraysDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingArraysPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
/**
* Generate example certificate using generated keys for the certificate
* public and private key, to be used in the certificate generation
* process.
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* selfSignedUsingGeneratedKeysDer (DER format)
* selfSignedUsingGeneratedKeysPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateSelfSignedUsingGeneratedKeys()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException, NoSuchAlgorithmException {
System.out.print("\nGenerating self-signed cert with generated keys");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Not setting Issuer, since generating self-signed cert */
/* Set Public Key from generated java.security.PublicKey */
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(2048);
KeyPair keyPair = kpg.generateKeyPair();
PublicKey pubKey = keyPair.getPublic();
x509.setPublicKey(pubKey);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, self-signed with java.security.PrivateKey */
PrivateKey privKey = keyPair.getPrivate();
x509.signCert(privKey, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(selfSignedUsingGeneratedKeysDer, derCert);
writeFile(selfSignedUsingGeneratedKeysPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingGeneratedKeysDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(selfSignedUsingGeneratedKeysPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
/**
* -----------------------------------------------------------------------
* Below are examples of CA-signed certificate generation
* -----------------------------------------------------------------------
*/
/**
* Generate example CA-signed certificate using the following files as
* input to the certificate generation process:
*
* caCertPem - Existing CA certificate in PEM format
* clientKeyPubDer - Existing client public key in DER format
* clientKeyDer - Existing client private key in DER format
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* caSignedUsingFilesDer (DER format)
* caSignedUsingFilesPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateCASignedUsingFiles()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException {
System.out.print("\nGenerating CA-signed cert using files");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Set Issuer Name from existing cert file wrapped in
* WolfSSLCertificate object */
WolfSSLCertificate issuer = new WolfSSLCertificate(caCertPem,
WolfSSL.SSL_FILETYPE_PEM);
x509.setIssuerName(issuer);
/* Set Public Key from existing public key DER file */
x509.setPublicKey(clientKeyPubDer, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, CA-signed using existing CA key DER */
x509.signCert(caKeyDer, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(caSignedUsingFilesDer, derCert);
writeFile(caSignedUsingFilesPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingFilesDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingFilesPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
/**
* Generate example CA-signed certificate using the following files in
* array format as input to the certificate generation process:
*
* caCertPem - Existing CA certificate in PEM format
* clientKeyPubDer - Existing client public key in DER format
* clientKeyDer - Existing client private key in DER format
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* caSignedUsingArraysDer (DER format)
* caSignedUsingArraysPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateCASignedUsingArrays()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException {
System.out.print("\nGenerating CA-signed cert using arrays");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Set Issuer Name from existing cert file ready into a byte array and
* wrapped in WolfSSLCertificate object */
WolfSSLCertificate issuer = new WolfSSLCertificate(
Files.readAllBytes(Paths.get(caCertPem)),
WolfSSL.SSL_FILETYPE_PEM);
x509.setIssuerName(issuer);
/* Set Public Key from existing public key DER file */
byte[] pubKey = Files.readAllBytes(Paths.get(clientKeyPubDer));
x509.setPublicKey(pubKey, WolfSSL.RSAk, WolfSSL.SSL_FILETYPE_ASN1);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, self-signed using existing client key DER */
byte[] privKey = Files.readAllBytes(Paths.get(caKeyDer));
x509.signCert(privKey, WolfSSL.RSAk,
WolfSSL.SSL_FILETYPE_ASN1, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(caSignedUsingArraysDer, derCert);
writeFile(caSignedUsingArraysPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingArraysDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingArraysPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
/**
* Generate example CA-signed certificate using generated keys for the
* certificate public and private key, to be used in the certificate
* generation process.
*
* Generates and writes certificate out to the following paths in
* both PEM and DER format (see variable values above):
* caSignedUsingGeneratedKeysDer (DER format)
* caSignedUsingGeneratedKeysPem (PEM format)
*
* @throws WolfSSLException if error occurs during certificate generation
* process.
* @throws WolfSSLJNIException if native JNI error occurs
* @throws IOException on error writing to output file locations
*/
public void generateCASignedUsingGeneratedKeys()
throws WolfSSLException, WolfSSLJNIException, IOException,
CertificateException, NoSuchAlgorithmException,
InvalidKeySpecException {
System.out.print("\nGenerating CA-signed cert with generated keys");
/* Create new certificate object */
WolfSSLCertificate x509 = new WolfSSLCertificate();
/* Set notBefore/notAfter validity dates */
Instant now = Instant.now();
final Date notBefore = Date.from(now);
final Date notAfter = Date.from(now.plus(Duration.ofDays(365)));
x509.setNotBefore(notBefore);
x509.setNotAfter(notAfter);
/* Set serial number */
x509.setSerialNumber(BigInteger.valueOf(12345));
/* Set Subject Name */
WolfSSLX509Name subjectName = generateTestSubjectName();
x509.setSubjectName(subjectName);
/* Set Issuer Name from existing cert file wrapped in
* WolfSSLCertificate object */
WolfSSLCertificate issuer = new WolfSSLCertificate(caCertPem,
WolfSSL.SSL_FILETYPE_PEM);
X509Certificate issuerX509 = issuer.getX509Certificate();
x509.setIssuerName(issuerX509);
/* Set Public Key from generated java.security.PublicKey */
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(2048);
KeyPair keyPair = kpg.generateKeyPair();
PublicKey pubKey = keyPair.getPublic();
x509.setPublicKey(pubKey);
/* Add Extensions */
x509.addExtension(WolfSSL.NID_key_usage, test_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_ext_key_usage, test_EXT_KEY_USAGE, false);
x509.addExtension(WolfSSL.NID_subject_alt_name, test_ALT_NAME, false);
x509.addExtension(WolfSSL.NID_basic_constraints, true, true);
/* Sign certificate, using CA's private key */
byte[] privBytes = Files.readAllBytes(Paths.get(caKeyPkcs8Der));
KeyFactory kf = KeyFactory.getInstance("RSA");
PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(privBytes);
RSAPrivateKey rsaPriv = (RSAPrivateKey)kf.generatePrivate(spec);
x509.signCert((PrivateKey)rsaPriv, "SHA256");
/* Output to DER and PEM files */
byte[] derCert = x509.getDer();
byte[] pemCert = x509.getPem();
/* Write out generated certs to files */
writeFile(caSignedUsingGeneratedKeysDer, derCert);
writeFile(caSignedUsingGeneratedKeysPem, pemCert);
/* Test converting to X509Certificate */
X509Certificate tmpX509 = x509.getX509Certificate();
System.out.println("... ");
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingGeneratedKeysDer).getFileName());
System.out.println(" " + CERT_DIR_FROM_ROOT +
Paths.get(caSignedUsingGeneratedKeysPem).getFileName());
/* Free native memory */
subjectName.free();
x509.free();
}
public void run(String[] args) {
int ret = 0;
try {
/* Initialize and load native wolfSSL library, enable debugging */
WolfSSL.loadLibrary();
WolfSSL sslLib = new WolfSSL();
/* Enable debugging if desired */
//sslLib.debuggingON();
System.out.println(
"wolfSSL JNI X509v3 Certificate Generation Example");
/* Generate self-signed example certificates */
generateSelfSignedUsingFiles();
generateSelfSignedUsingArrays();
generateSelfSignedUsingGeneratedKeys();
/* Generate CA-signed example certificates */
generateCASignedUsingFiles();
generateCASignedUsingArrays();
generateCASignedUsingGeneratedKeys();
} catch (WolfSSLException | WolfSSLJNIException |
IOException | CertificateException |
NoSuchAlgorithmException | InvalidKeySpecException e) {
e.printStackTrace();
/* exit with error */
System.exit(1);
}
} /* end run() */
public static void main(String[] args) {
new X509v3CertificateGeneration().run(args);
}
} /* end X509v3CertificateGeneration */
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