238
239 sunProvider = Security.getProvider("SUN");
240 if (sunProvider == null)
241 throw new InstantiationException();
242 classname = sunProvider.getProperty("PublicKey.X.509." +
243 algid.getName());
244 if (classname == null) {
245 throw new InstantiationException();
246 }
247
248 Class<?> keyClass = null;
249 try {
250 keyClass = Class.forName(classname);
251 } catch (ClassNotFoundException e) {
252 ClassLoader cl = ClassLoader.getSystemClassLoader();
253 if (cl != null) {
254 keyClass = cl.loadClass(classname);
255 }
256 }
257
258 Object inst = null;
259 X509Key result;
260
261 if (keyClass != null)
262 inst = keyClass.newInstance();
263 if (inst instanceof X509Key) {
264 result = (X509Key) inst;
265 result.algid = algid;
266 result.setKey(key);
267 result.parseKeyBits();
268 return result;
269 }
270 } catch (ClassNotFoundException e) {
271 } catch (InstantiationException e) {
272 } catch (IllegalAccessException e) {
273 // this should not happen.
274 throw new IOException (classname + " [internal error]");
275 }
276
277 X509Key result = new X509Key(algid, key);
278 return result;
279 }
280
281 /**
282 * Returns the algorithm to be used with this key.
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238
239 sunProvider = Security.getProvider("SUN");
240 if (sunProvider == null)
241 throw new InstantiationException();
242 classname = sunProvider.getProperty("PublicKey.X.509." +
243 algid.getName());
244 if (classname == null) {
245 throw new InstantiationException();
246 }
247
248 Class<?> keyClass = null;
249 try {
250 keyClass = Class.forName(classname);
251 } catch (ClassNotFoundException e) {
252 ClassLoader cl = ClassLoader.getSystemClassLoader();
253 if (cl != null) {
254 keyClass = cl.loadClass(classname);
255 }
256 }
257
258 @SuppressWarnings("deprecation")
259 Object inst = (keyClass != null) ? keyClass.newInstance() : null;
260 X509Key result;
261
262 if (inst instanceof X509Key) {
263 result = (X509Key) inst;
264 result.algid = algid;
265 result.setKey(key);
266 result.parseKeyBits();
267 return result;
268 }
269 } catch (ClassNotFoundException e) {
270 } catch (InstantiationException e) {
271 } catch (IllegalAccessException e) {
272 // this should not happen.
273 throw new IOException (classname + " [internal error]");
274 }
275
276 X509Key result = new X509Key(algid, key);
277 return result;
278 }
279
280 /**
281 * Returns the algorithm to be used with this key.
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