1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.network.crypto;
import java.nio.ByteBuffer;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.apache.spark.network.protocol.Encodable;
import org.apache.spark.network.protocol.Encoders;
/**
* Server's response to client's challenge.
*
* Please see crypto/README.md for more details.
*/
public class ServerResponse implements Encodable {
/** Serialization tag used to catch incorrect payloads. */
private static final byte TAG_BYTE = (byte) 0xFB;
public final byte[] response;
public final byte[] nonce;
public final byte[] inputIv;
public final byte[] outputIv;
public ServerResponse(
byte[] response,
byte[] nonce,
byte[] inputIv,
byte[] outputIv) {
this.response = response;
this.nonce = nonce;
this.inputIv = inputIv;
this.outputIv = outputIv;
}
@Override
public int encodedLength() {
return 1 +
Encoders.ByteArrays.encodedLength(response) +
Encoders.ByteArrays.encodedLength(nonce) +
Encoders.ByteArrays.encodedLength(inputIv) +
Encoders.ByteArrays.encodedLength(outputIv);
}
@Override
public void encode(ByteBuf buf) {
buf.writeByte(TAG_BYTE);
Encoders.ByteArrays.encode(buf, response);
Encoders.ByteArrays.encode(buf, nonce);
Encoders.ByteArrays.encode(buf, inputIv);
Encoders.ByteArrays.encode(buf, outputIv);
}
public static ServerResponse decodeMessage(ByteBuffer buffer) {
ByteBuf buf = Unpooled.wrappedBuffer(buffer);
if (buf.readByte() != TAG_BYTE) {
throw new IllegalArgumentException("Expected ServerResponse, received something else.");
}
return new ServerResponse(
Encoders.ByteArrays.decode(buf),
Encoders.ByteArrays.decode(buf),
Encoders.ByteArrays.decode(buf),
Encoders.ByteArrays.decode(buf));
}
}
|
