Example usage for java.security Security getProvider

Introduction

In this page you can find the example usage for java.security Security getProvider.

Prototype

public static Provider getProvider(String name)

Source Link

Document

Returns the provider installed with the specified name, if any.

Usage

From source file:MainClass.java

public static void main(String[] args) {
    String providerName = "BC";

    if (Security.getProvider(providerName) == null) {
        System.out.println(providerName + " provider not installed");
    } else {/*w  w  w .  j  av a2  s  .  c om*/
        System.out.println(providerName + " is installed.");
    }
}

From source file:MainClass.java

public static void main(String[] args) {
    Provider provider = Security.getProvider("BC");

    Iterator it = provider.keySet().iterator();

    while (it.hasNext()) {
        String entry = (String) it.next();
        if (entry.startsWith("Alg.Alias.")) {
            entry = entry.substring("Alg.Alias.".length());
        }/*from   ww w. j a  v  a 2  s  .c  o  m*/
        System.out.println(entry);
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Provider p = Security.getProvider("Rot13Provider");
    System.out.println("Provider name: " + p.getName());
    System.out.println("Provider version: " + p.getVersion());
    System.out.println("Provider information: " + p.getInfo());

    Cipher cipher = Cipher.getInstance("ROT13", "Rot13Provider");
    System.out.println("Cipher: " + cipher.getAlgorithm());
    String testString = "This is a test!";
    cipher.init(Cipher.ENCRYPT_MODE, (Key) null, new SecureRandom());
    byte[] b1 = cipher.doFinal(testString.getBytes());
    cipher.init(Cipher.DECRYPT_MODE, (Key) null, new SecureRandom());
    byte[] b2 = cipher.doFinal(b1);
    System.out.println("Decrypted data as a String: " + new String(b2));
}

From source file:VerifyDescriptors.java

public static void main(String[] args) throws Exception {
    System.out.println("Verifying consensuses...");
    if (Security.getProvider("BC") == null) {
        Security.addProvider(new BouncyCastleProvider());
    }//from   w  ww. j  av  a2s  .  c o  m
    verifyServerDescriptors();
    verifyConsensuses();
}

From source file:Main.java

protected static boolean initProvider(String providerName, String className) {
    try {/*w w  w. ja  va 2  s.  co m*/
        Provider provider = Security.getProvider(providerName);
        if (provider == null) {
            @SuppressWarnings("rawtypes")
            Class clazz = Class.forName(className);
            provider = (Provider) clazz.newInstance();
            Security.addProvider(provider);
        }
        return true;
    } catch (Throwable ignored) {
    }
    return false;
}

From source file:Main.java

static Provider getProvider(String provider) throws NoSuchProviderException {
    Provider prov = Security.getProvider(provider);

    if (prov == null) {
        throw new NoSuchProviderException("Provider " + provider + " not found");
    }//from   w w  w . j ava  2s  .c  o  m

    return prov;
}

From source file:com.amazonaws.services.s3.internal.crypto.CryptoRuntime.java

public static boolean isBouncyCastleAvailable() {
    return Security.getProvider(BOUNCY_CASTLE_PROVIDER) != null;
}

From source file:Main.java

public static void setupSunPKCS11Provider(String pkcs11LibPath, final char[] password) {
    // Prevents installing the provider twice.
    if (Security.getProvider("SunPKCS11-verinice") != null)
        return;//from  w  ww . j a va2  s .  c  o m

    // If the user enabled anything PKCS#11 related we need to lead the
    // PKCS#11 library and add its
    // provider.
    String configFile = createPKCS11ConfigFile(pkcs11LibPath);
    if (configFile != null) {
        // The availability of this class in an OSGi environment depends on
        // a system property. If
        // get errors of this class not being available check that you have
        // -Dosgi.parentClassloader=ext
        // in your VM arguments.
        SunPKCS11 p = new SunPKCS11(configFile);
        p.setCallbackHandler(new CallbackHandler() {

            @Override
            public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
                ((PasswordCallback) callbacks[0]).setPassword(password);
            }
        });
        Security.addProvider(p);
    }
}

From source file:com.nkapps.billing.services.ProviderFactoryImpl.java

@Override
public Provider getProvider() {
    if (provider != null) {
        return provider;
    }//from  www. j a v a 2s.co m
    provider = Security.getProvider("BC");
    if (provider == null) {
        BouncyCastleProvider bcp = new BouncyCastleProvider();
        // configure fake provider
        Security.addProvider(bcp);
        provider = bcp;
    }
    return provider;
}

From source file:com.aqnote.shared.cryptology.util.ProviderUtil.java

public static void addProvider(Provider provider) throws Exception {
    if (provider == null || Security.getProvider(provider.getName()) != null)
        return;//w  w w  . j  a  va 2  s .  co  m
    Security.insertProviderAt(provider, 1);
}