1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.commons.crypto.random;
19
20 /**
21 * JNI interface of {@link CryptoRandom} implementation for OpenSSL.
22 * The native method in this class is defined in
23 * OpenSslCryptoRandomNative.h (generated at build time by javah)
24 * and implemented in the file
25 * src/main/native/org/apache/commons/crypto/random/OpenSslCryptoRandomNative.c
26 */
27 final class OpenSslCryptoRandomNative {
28
29 /**
30 * Declares a native method to initialize SR.
31 */
32 public static native void initSR();
33
34 /**
35 * Judges whether use {@link OpenSslCryptoRandomNative} to generate the
36 * user-specified number of random bits.
37 *
38 * @param bytes the array to be filled in with random bytes.
39 * @return true if use {@link OpenSslCryptoRandomNative} to generate the
40 * user-specified number of random bits.
41 */
42 public static native boolean nextRandBytes(byte[] bytes);
43
44 /**
45 * The private constructor of {@link OpenSslCryptoRandomNative}.
46 */
47 private OpenSslCryptoRandomNative() {
48 }
49 }