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      1 /* GENERATED SOURCE. DO NOT MODIFY. */
      2 /*
      3  * Copyright (C) 2012 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 package com.android.org.conscrypt;
     19 
     20 import java.io.Serializable;
     21 import java.security.SecureRandomSpi;
     22 
     23 /**
     24  * Implements {@link java.security.SecureRandom} using BoringSSL's RAND interface.
     25  * @hide This class is not part of the Android public SDK API
     26  */
     27 @libcore.api.IntraCoreApi
     28 @Internal
     29 public final class OpenSSLRandom extends SecureRandomSpi implements Serializable {
     30     private static final long serialVersionUID = 8506210602917522861L;
     31 
     32     @dalvik.annotation.compat.UnsupportedAppUsage
     33     @libcore.api.IntraCoreApi
     34     public OpenSSLRandom() {}
     35 
     36     @Override
     37     protected void engineSetSeed(byte[] seed) {
     38         if (seed == null) {
     39             throw new NullPointerException("seed == null");
     40         }
     41     }
     42 
     43     @Override
     44     protected void engineNextBytes(byte[] bytes) {
     45         NativeCrypto.RAND_bytes(bytes);
     46     }
     47 
     48     @Override
     49     protected byte[] engineGenerateSeed(int numBytes) {
     50         byte[] output = new byte[numBytes];
     51         NativeCrypto.RAND_bytes(output);
     52         return output;
     53     }
     54 }
     55