Example usage for java.security.cert CertificateFactory generateCertificate

Introduction

In this page you can find the example usage for java.security.cert CertificateFactory generateCertificate.

Prototype

public final Certificate generateCertificate(InputStream inStream) throws CertificateException

Source Link

Document

Generates a certificate object and initializes it with the data read from the input stream inStream .

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {

    FileInputStream is = new FileInputStream(new File("your"));

    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    java.security.cert.Certificate cert = cf.generateCertificate(is);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    FileInputStream fr = new FileInputStream("sdo.cer");
    CertificateFactory cf = CertificateFactory.getInstance("X509");
    X509Certificate c = (X509Certificate) cf.generateCertificate(fr);
    System.out.println("\tCertificate for: " + c.getSubjectDN());
    System.out.println("\tCertificate issued by: " + c.getIssuerDN());
    System.out.println("\tThe certificate is valid from " + c.getNotBefore() + " to " + c.getNotAfter());
    System.out.println("\tCertificate SN# " + c.getSerialNumber());
    System.out.println("\tGenerated with " + c.getSigAlgName());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    KeyPair pair = generateRSAKeyPair();
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    bOut.write(generateV1Certificate(pair).getEncoded());
    bOut.close();/*from w  ww.j a va2 s  .c o m*/
    InputStream in = new ByteArrayInputStream(bOut.toByteArray());
    CertificateFactory fact = CertificateFactory.getInstance("X.509", "BC");
    X509Certificate x509Cert = (X509Certificate) fact.generateCertificate(in);
    System.out.println("issuer: " + x509Cert.getIssuerX500Principal());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {

    CertificateFactory certFactory = CertificateFactory.getInstance("X.509");

    FileInputStream fis = new FileInputStream("a.dat");

    Certificate cert = certFactory.generateCertificate(fis);
    fis.close();/*  w ww . ja  va  2  s.  com*/

    System.out.println(cert);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    X509CertSelector selec = new X509CertSelector();
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    FileInputStream in = new FileInputStream(args[0]);
    Certificate c = cf.generateCertificate(in);
    System.out.println(selec.match(c));
    selec.setIssuer("CN=Peter,OU=Network Center," + "O=University,L=ZB,ST=Vancouver,C=CN");

    System.out.println(selec.match(c));

    Calendar cld = Calendar.getInstance();
    int year = Integer.parseInt(args[1]);
    int month = Integer.parseInt(args[2]) - 1;
    int day = Integer.parseInt(args[3]);
    cld.set(year, month, day);//w w w  .  jav  a2  s . c  o  m
    Date d = cld.getTime();
    selec.setCertificateValid(d);

    System.out.println(selec.match(c));
    BigInteger sn = new BigInteger("1039056963");
    selec.setSerialNumber(sn);

    System.out.println(selec.match(c));
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    FileInputStream in = new FileInputStream(args[0]);
    java.security.cert.Certificate c = cf.generateCertificate(in);
    in.close();//w  w w  .j av  a 2s.  c o m

    X509Certificate t = (X509Certificate) c;
    System.out.println(t.getVersion());
    System.out.println(t.getSerialNumber().toString(16));
    System.out.println(t.getSubjectDN());
    System.out.println(t.getIssuerDN());
    System.out.println(t.getNotBefore());
    System.out.println(t.getNotAfter());
    System.out.println(t.getSigAlgName());
    byte[] sig = t.getSignature();
    System.out.println(new BigInteger(sig).toString(16));
    PublicKey pk = t.getPublicKey();
    byte[] pkenc = pk.getEncoded();
    for (int i = 0; i < pkenc.length; i++) {
        System.out.print(pkenc[i] + ",");
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    String cacert = "mytest.cer";
    String lfcert = "lf_signed.cer";
    String lfstore = "lfkeystore";
    char[] lfstorepass = "wshr.ut".toCharArray();
    char[] lfkeypass = "wshr.ut".toCharArray();
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    FileInputStream in1 = new FileInputStream(cacert);
    java.security.cert.Certificate cac = cf.generateCertificate(in1);
    in1.close();// w ww.  ja va  2 s.  c  om
    FileInputStream in2 = new FileInputStream(lfcert);
    java.security.cert.Certificate lfc = cf.generateCertificate(in2);
    in2.close();
    java.security.cert.Certificate[] cchain = { lfc, cac };
    FileInputStream in3 = new FileInputStream(lfstore);
    KeyStore ks = KeyStore.getInstance("JKS");
    ks.load(in3, lfstorepass);
    PrivateKey prk = (PrivateKey) ks.getKey("lf", lfkeypass);
    ks.setKeyEntry("lf_signed", prk, lfstorepass, cchain);
    FileOutputStream out4 = new FileOutputStream("lfnewstore");
    ks.store(out4, "newpass".toCharArray());
    out4.close();
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    List mylist = new ArrayList();
    FileInputStream in = new FileInputStream(args[0]);
    Certificate c = cf.generateCertificate(in);
    mylist.add(c);/*from w ww.ja  v a2 s . c o  m*/

    CertPath cp = cf.generateCertPath(mylist);

    Certificate trust = cf.generateCertificate(in);
    TrustAnchor anchor = new TrustAnchor((X509Certificate) trust, null);
    PKIXParameters params = new PKIXParameters(Collections.singleton(anchor));
    params.setRevocationEnabled(false);
    CertPathValidator cpv = CertPathValidator.getInstance("PKIX");
    PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv.validate(cp, params);
    System.out.println(result);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {

    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    List mylist = new ArrayList();
    FileInputStream in = new FileInputStream(args[0]);
    Certificate c = cf.generateCertificate(in);
    mylist.add(c);//from  ww  w. ja v  a  2  s .  c  o m

    CertStoreParameters cparam = new CollectionCertStoreParameters(mylist);
    CertStore cs = CertStore.getInstance("Collection", cparam);
    X509CertSelector selec = new X509CertSelector();
    selec.setIssuer("CN=YourName,OU=Network Center," + "O=University,L=ZB,ST=Toronto,C=CN");
    Set clct = (Set) cs.getCertificates(selec);
    Object o[] = clct.toArray();
    for (int i = 0; i < o.length; i++) {
        X509Certificate ct = (X509Certificate) o[i];
        System.out.println("Certificate " + i + " ");
        System.out.println(ct.getSubjectDN());

    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    Certificate[] certpath = new Certificate[args.length];
    CertificateFactory cf = CertificateFactory.getInstance("X.509");

    for (int i = 0; i < args.length; i++) {
        FileInputStream in = new FileInputStream(args[i]);
        certpath[i] = cf.generateCertificate(in);
    }/*from   ww  w. j ava2  s.c o  m*/
    for (int i = 0; i < certpath.length - 1; i++) {
        Principal issuer = ((X509Certificate) certpath[i]).getIssuerDN();
        Principal subject = ((X509Certificate) certpath[i + 1]).getSubjectDN();
        if (!issuer.equals(subject)) {
            System.out.println("in " + i + " issuer is " + issuer);
            System.out.println("But in " + (i + 1));
            System.out.println("subject is " + subject);
            break;
        }
    }
}