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 import java.io.Closeable;
21
22 /**
23 * Generates random bytes.
24 * <p>
25 * Note that implementations must provide a constructor that takes a Properties instance.
26 * </p>
27 */
28 public interface CryptoRandom extends Closeable {
29
30 /**
31 * Generates random bytes and places them into a user-supplied byte array.
32 * The number of random bytes produced is equal to the length of the byte
33 * array.
34 *
35 * @param bytes the byte array to fill with random bytes
36 */
37 void nextBytes(byte[] bytes);
38
39 }