1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package org.conscrypt;
18
19import java.io.Serializable;
20import java.security.SecureRandomSpi;
21
22/**
23 * Implements {@link java.security.SecureRandom} using BoringSSL's RAND interface.
24 *
25 * @hide
26 */
27@Internal
28public class OpenSSLRandom extends SecureRandomSpi implements Serializable {
29    private static final long serialVersionUID = 8506210602917522861L;
30
31    @Override
32    protected void engineSetSeed(byte[] seed) {
33        if (seed == null) {
34            throw new NullPointerException("seed == null");
35        }
36    }
37
38    @Override
39    protected void engineNextBytes(byte[] bytes) {
40        NativeCrypto.RAND_bytes(bytes);
41    }
42
43    @Override
44    protected byte[] engineGenerateSeed(int numBytes) {
45        byte[] output = new byte[numBytes];
46        NativeCrypto.RAND_bytes(output);
47        return output;
48    }
49}
50