1 /*
2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
240 // see JCE spec
241 protected byte[] engineWrap(Key key) throws IllegalBlockSizeException,
242 InvalidKeyException {
243 byte[] encoded = key.getEncoded();
244 if ((encoded == null) || (encoded.length == 0)) {
245 throw new InvalidKeyException("Could not obtain encoded key");
246 }
247 return engineDoFinal(encoded, 0, encoded.length);
248 }
249
250 // see JCE spec
251 protected Key engineUnwrap(byte[] wrappedKey, String algorithm,
252 int type) throws InvalidKeyException, NoSuchAlgorithmException {
253 byte[] encoded = engineDoFinal(wrappedKey, 0, wrappedKey.length);
254 return ConstructKeys.constructKey(encoded, algorithm, type);
255 }
256
257 // see JCE spec
258 protected int engineGetKeySize(Key key) throws InvalidKeyException {
259 byte[] encodedKey = getEncodedKey(key);
260 return encodedKey.length << 3;
261 }
262
263 }
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1 /*
2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
240 // see JCE spec
241 protected byte[] engineWrap(Key key) throws IllegalBlockSizeException,
242 InvalidKeyException {
243 byte[] encoded = key.getEncoded();
244 if ((encoded == null) || (encoded.length == 0)) {
245 throw new InvalidKeyException("Could not obtain encoded key");
246 }
247 return engineDoFinal(encoded, 0, encoded.length);
248 }
249
250 // see JCE spec
251 protected Key engineUnwrap(byte[] wrappedKey, String algorithm,
252 int type) throws InvalidKeyException, NoSuchAlgorithmException {
253 byte[] encoded = engineDoFinal(wrappedKey, 0, wrappedKey.length);
254 return ConstructKeys.constructKey(encoded, algorithm, type);
255 }
256
257 // see JCE spec
258 protected int engineGetKeySize(Key key) throws InvalidKeyException {
259 byte[] encodedKey = getEncodedKey(key);
260 return Math.multiplyExact(encodedKey.length, 8);
261 }
262
263 }
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