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 17 package org.conscrypt; 18 19 import java.io.Serializable; 20 import java.security.SecureRandomSpi; 21 22 /** 23 * Implements {@link java.security.SecureRandom} using BoringSSL's RAND interface. 24 * 25 * @hide 26 */ 27 @Internal 28 public final 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
