Example usage for java.math BigInteger BigInteger

Introduction

In this page you can find the example usage for java.math BigInteger BigInteger.

Prototype

private BigInteger(long val) 

Source Link

Document

Constructs a BigInteger with the specified value, which may not be zero.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    MessageDigest md = MessageDigest.getInstance("MD5");
    SomeObject testObject = new SomeObject();

    dos.writeInt(testObject.count);//from w w w .  j  a v  a2  s.  co  m
    dos.writeLong(testObject.product);
    dos.writeDouble(testObject.stdDev);
    dos.writeUTF(testObject.name);
    dos.writeChar(testObject.delimiter);
    dos.flush();

    byte[] hashBytes = md.digest(baos.toByteArray());
    BigInteger testObjectHash = new BigInteger(hashBytes);

    System.out.println("Hash " + testObjectHash);

    dos.close();

}

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From source file:edu.macalester.tagrelatedness.KendallsCorrelation.java

public static void main(String args[]) {
    long tiedx = new BigInteger("1853724906736").longValue();
    long tiedy = new BigInteger("5328254589").longValue();
    long numpairs = new BigInteger("4094164093575").longValue();
    BigSquareRoot sqrt = new BigSquareRoot();
    BigInteger first = new BigInteger("" + (numpairs - tiedx));
    BigInteger second = new BigInteger("" + (numpairs - tiedy));
    BigDecimal result = sqrt.get(first.multiply(second));
    System.out.println(result.doubleValue());

}

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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();//from  www .j  a v a  2  s . 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] + ",");
    }
}

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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);/*from  ww w  .j  a  v a 2  s . com*/
    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));
}

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From source file:MainClass.java

public static void main(String args[]) throws Exception {
    System.setProperty("javax.net.ssl.trustStore", "clienttrust");

    SSLSocketFactory ssf = (SSLSocketFactory) SSLSocketFactory.getDefault();
    Socket s = ssf.createSocket("127.0.0.1", 5432);

    SSLSession session = ((SSLSocket) s).getSession();
    Certificate[] cchain = session.getPeerCertificates();
    System.out.println("The Certificates used by peer");
    for (int i = 0; i < cchain.length; i++) {
        System.out.println(((X509Certificate) cchain[i]).getSubjectDN());
    }/*from   w w w  .j a  v a2s .  co m*/
    System.out.println("Peer host is " + session.getPeerHost());
    System.out.println("Cipher is " + session.getCipherSuite());
    System.out.println("Protocol is " + session.getProtocol());
    System.out.println("ID is " + new BigInteger(session.getId()));
    System.out.println("Session created in " + session.getCreationTime());
    System.out.println("Session accessed in " + session.getLastAccessedTime());

    BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
    String x = in.readLine();
    System.out.println(x);
    in.close();

}

---

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    System.setProperty("javax.net.ssl.keyStore", "lfkeystore2");
    System.setProperty("javax.net.ssl.keyStorePassword", "wshr.ut");

    SSLServerSocketFactory ssf = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
    ServerSocket ss = ssf.createServerSocket(5432);
    while (true) {
        Socket s = ss.accept();//from www. j  a v a 2  s .c  o m
        SSLSession session = ((SSLSocket) s).getSession();
        Certificate[] cchain2 = session.getLocalCertificates();
        for (int i = 0; i < cchain2.length; i++) {
            System.out.println(((X509Certificate) cchain2[i]).getSubjectDN());
        }
        System.out.println("Peer host is " + session.getPeerHost());
        System.out.println("Cipher is " + session.getCipherSuite());
        System.out.println("Protocol is " + session.getProtocol());
        System.out.println("ID is " + new BigInteger(session.getId()));
        System.out.println("Session created in " + session.getCreationTime());
        System.out.println("Session accessed in " + session.getLastAccessedTime());

        PrintStream out = new PrintStream(s.getOutputStream());
        out.println("Hi");
        out.close();
        s.close();
    }

}

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From source file:com.og.elliptic.sdk.main.java

public static void main(String[] args) {
    System.out.println("Test begins");

    WeierStrassCurve curve;/*from w  w  w  . ja v  a 2  s  .  c o  m*/
    BigInteger P = new BigInteger(
            "8884933102832021670310856601112383279507496491807071433260928721853918699951");
    BigInteger R = new BigInteger(
            "8094458595770206542003150089514239385761983350496862878239630488323200271273");
    BigInteger N = new BigInteger(
            "8884933102832021670310856601112383279454437918059397120004264665392731659049");
    BigInteger A4 = new BigInteger(
            "2481513316835306518496091950488867366805208929993787063131352719741796616329");
    BigInteger A6 = new BigInteger(
            "4387305958586347890529260320831286139799795892409507048422786783411496715073");
    BigInteger R4 = new BigInteger(
            "5473953786136330929505372885864126123958065998198197694258492204115618878079");
    BigInteger R6 = new BigInteger(
            "5831273952509092555776116225688691072512584265972424782073602066621365105518");
    BigInteger GX = new BigInteger(
            "7638166354848741333090176068286311479365713946232310129943505521094105356372");
    BigInteger GY = new BigInteger(
            "762687367051975977761089912701686274060655281117983501949286086861823169994");
    curve = new WeierStrassCurve(P, R, N, A4, A6, R4, R6, GX, GY);

    // testDiffieHelman(curve);
    //
    // testDiffieHelmanAndSign(curve);
    //
    // elGamalString(curve);

    testElGamal();
}

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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  w  w . j a v a2 s  . c o  m*/

    CertPath cp = cf.generateCertPath(mylist);

    FileInputStream kin = new FileInputStream(args[0]);
    KeyStore ks = KeyStore.getInstance("JKS");
    ks.load(kin, args[1].toCharArray());

    PKIXParameters params = new PKIXParameters(ks);
    params.setRevocationEnabled(false);

    CertPathValidator cpv = CertPathValidator.getInstance("PKIX");

    PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv.validate(cp, params);

    PublicKey pbk = result.getPublicKey();
    byte[] pkenc = pbk.getEncoded();
    BigInteger pk = new BigInteger(pkenc);
    System.out.println(pk.toString(16));

    TrustAnchor anc = result.getTrustAnchor();
    X509Certificate xc = anc.getTrustedCert();
    System.out.println(xc.getSubjectDN());
    System.out.println(xc.getIssuerDN());

}

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From source file:Ternary.java

public static void main(String[] args) {
    if (args.length == 0) {
        System.out.format("java org.eoti.lang.Ternary number [[number]...]\n");
        System.exit(0);/*from   ww  w .  ja v a 2s .c om*/
    }

    for (String arg : args) {
        BigInteger toConvert = new BigInteger(arg);
        Ternary ternary = new Ternary(toConvert);
        System.out.format("\nDecimal:\t%s\nTernary:\t%s\n", toConvert, ternary);
    }
}

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From source file:RSA.java

/** Trivial test program. */
public static void main(String[] args) {
    RSA rsa = new RSA(1024);

    String text1 = "Yellow and Black Border Collies";
    System.out.println("Plaintext: " + text1);
    BigInteger plaintext = new BigInteger(text1.getBytes());

    BigInteger ciphertext = rsa.encrypt(plaintext);
    System.out.println("Ciphertext: " + ciphertext);
    plaintext = rsa.decrypt(ciphertext);

    String text2 = new String(plaintext.toByteArray());
    System.out.println("Plaintext: " + text2);
}

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