static Instance getInstance(String type, Class<?> clazz, String algorithm, String provider) throws NoSuchAlgorithmException, NoSuchProviderException { Service s = GetInstance.getService(type, algorithm, provider); Exception ve = getVerificationResult(s.getProvider()); if (ve != null) { String msg = "JCE cannot authenticate the provider " + provider; throw (NoSuchProviderException) new NoSuchProviderException(msg).initCause(ve); } 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); Exception ve = JceSecurity.getVerificationResult(provider); if (ve != null) { String msg = "JCE cannot authenticate the provider " + provider.getName(); throw new SecurityException(msg, ve); } return GetInstance.getInstance(s, clazz); }
static Instance getInstance(String type, Class<?> clazz, String algorithm) throws NoSuchAlgorithmException { List<Service> services = GetInstance.getServices(type, algorithm); NoSuchAlgorithmException failure = null; for (Service s : services) { if (canUseProvider(s.getProvider()) == false) { // allow only signed providers continue; } try { Instance instance = GetInstance.getInstance(s, clazz); return instance; } catch (NoSuchAlgorithmException e) { failure = e; } } throw new NoSuchAlgorithmException("Algorithm " + algorithm + " not available", failure); }