Package java.security.Provider

Examples of java.security.Provider.Service

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                implInit(spi, initType, opmode, key, paramSpec, params, random);
                return;
            }
            Exception lastException = null;
            while ((firstService != null) || serviceIterator.hasNext()) {
                Service s;
                CipherSpi thisSpi;
                if (firstService != null) {
                    s = firstService;
                    thisSpi = firstSpi;
                    firstService = null;
                    firstSpi = null;
                } else {
                    s = (Service)serviceIterator.next();
                    thisSpi = null;
                }
                // if provider says it does not support this key, ignore it
                if (s.supportsParameter(key) == false) {
                    continue;
                }
                Transform tr = getTransform(s, transforms);
                if (tr == null) {
                    // should never happen
                    continue;
                }
                if (tr.supportsModePadding(s) == S_NO) {
                    continue;
                }
                try {
                    if (thisSpi == null) {
                        thisSpi = (CipherSpi)s.newInstance(null);
                    }
                    tr.setModePadding(thisSpi);
                    implInit(thisSpi, initType, opmode, key, paramSpec,
                                                        params, random);
                    provider = s.getProvider();
                    this.spi = thisSpi;
                    firstService = null;
                    serviceIterator = null;
                    transforms = null;
                    return;
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        System.out.println(p2.getServices()); // trigger service parsing

        System.out.println(Signature.getInstance("MD5withRSA"));
        System.out.println(Signature.getInstance("md5withrsa"));
        System.out.println(Signature.getInstance("MD5WITHRSA"));
        Service s1, s2;
        s1 = p1.getService("Signature", "MD5withRSA");
        check(s1, null);
        check(s1, p1.getService("Signature", "md5withrsa"));
        check(s1, p1.getService("Signature", "MD5WITHRSA"));
        check(s1, p1.getService("Signature", "MD5RSA"));
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    }

    static Instance getInstance(String type, Class clazz, String algorithm,
            String provider) throws NoSuchAlgorithmException,
            NoSuchProviderException {
        Service s = GetInstance.getService(type, algorithm, provider);
        return GetInstance.getInstance(s, clazz);
    }
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        return GetInstance.getInstance(s, clazz);
    }

    static Instance getInstance(String type, Class clazz, String algorithm,
            Provider provider) throws NoSuchAlgorithmException {
        Service s = GetInstance.getService(type, algorithm, provider);
        return GetInstance.getInstance(s, clazz);
    }
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    static Instance getInstance(String type, Class clazz, String algorithm)
            throws NoSuchAlgorithmException {
        List services = GetInstance.getServices(type, algorithm);
        NoSuchAlgorithmException failure = null;
        for (Iterator t = services.iterator(); t.hasNext(); ) {
            Service s = (Service)t.next();
            try {
                Instance instance = GetInstance.getInstance(s, clazz);
                return instance;
            } catch (NoSuchAlgorithmException e) {
                failure = e;
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        PublicKey myPublicKey = new MyPublicKey();
        PrivateKey myPrivateKey = new MyPrivateKey();
        SecretKey mySecretKey = new MySecretKey();

        Provider p = new MyProvider();
        Service s;

        // none specified, always true
        s = p.getService("Signature", "DSA0");
        checkSupports(s, null, true);
        checkSupports(s, dsaPublicKey, true);
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                (algorithm + " Signature not available");
        }
        // try services until we find an Spi or a working Signature subclass
        NoSuchAlgorithmException failure;
        do {
            Service s = t.next();
            if (isSpi(s)) {
                return new Delegate(s, t, algorithm);
            } else {
                // must be a subclass of Signature, disable dynamic selection
                try {
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    // return an implementation for NONEwithRSA, which is a special case
    // because of the Cipher.RSA/ECB/PKCS1Padding compatibility wrapper
    private static Signature getInstanceRSA(Provider p)
            throws NoSuchAlgorithmException {
        // try Signature first
        Service s = p.getService("Signature", RSA_SIGNATURE);
        if (s != null) {
            Instance instance = GetInstance.getInstance(s, SignatureSpi.class);
            return getInstance(instance, RSA_SIGNATURE);
        }
        // check Cipher
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            }
            if (serviceIterator == null) {
                return null;
            }
            while (serviceIterator.hasNext()) {
                Service s = serviceIterator.next();
                try {
                    Object obj = s.newInstance(null);
                    if (obj instanceof KeyFactorySpi == false) {
                        continue;
                    }
                    KeyFactorySpi spi = (KeyFactorySpi)obj;
                    provider = s.getProvider();
                    this.spi = spi;
                    return spi;
                } catch (NoSuchAlgorithmException e) {
                    // ignore
                }
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        // make sure there is at least one service from a signed provider
        // and that it can use the specified mode and padding
        Iterator t = services.iterator();
        Exception failure = null;
        while (t.hasNext()) {
            Service s = (Service)t.next();
            if (JceSecurity.canUseProvider(s.getProvider()) == false) {
                continue;
            }
            Transform tr = getTransform(s, transforms);
            if (tr == null) {
                // should never happen
                continue;
            }
            int canuse = tr.supportsModePadding(s);
            if (canuse == S_NO) {
                // does not support mode or padding we need, ignore
                continue;
            }
            if (canuse == S_YES) {
                return new Cipher(null, s, t, transformation, transforms);
            } else { // S_MAYBE, try out if it works
                try {
                    CipherSpi spi = (CipherSpi)s.newInstance(null);
                    tr.setModePadding(spi);
                    return new Cipher(spi, s, t, transformation, transforms);
                } catch (Exception e) {
                    failure = e;
                }
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Related Classes of java.security.Provider.Service

  • com.sun.net.ssl.SSLSecurity
  • SupportsParameter
  • Turkish
  • sun.security.jca.ProviderList
  • java.security.SecureRandom
  • javax.crypto.SecretKeyFactory
  • javax.crypto.KeyGenerator
  • sun.security.jca.ProviderList$ServiceList
  • java.security.KeyFactory
  • java.security.KeyPairGenerator$Delegate
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