127 lines
3.4 KiB
Java
127 lines
3.4 KiB
Java
/*
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* Copyright 2015 Christian Basler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.dissem.bitmessage.entity.payload;
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import ch.dissem.bitmessage.utils.Decode;
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import ch.dissem.bitmessage.utils.Encode;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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/**
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* A version 2 public key.
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*/
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public class V2Pubkey extends Pubkey {
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protected long stream;
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protected int behaviorBitfield;
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protected byte[] publicSigningKey; // 64 Bytes
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protected byte[] publicEncryptionKey; // 64 Bytes
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protected V2Pubkey(long version) {
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super(version);
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}
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private V2Pubkey(long version, Builder builder) {
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super(version);
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stream = builder.streamNumber;
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behaviorBitfield = builder.behaviorBitfield;
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publicSigningKey = add0x04(builder.publicSigningKey);
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publicEncryptionKey = add0x04(builder.publicEncryptionKey);
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}
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public static V2Pubkey read(InputStream is, long stream) throws IOException {
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return new V2Pubkey.Builder()
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.stream(stream)
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.behaviorBitfield((int) Decode.uint32(is))
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.publicSigningKey(Decode.bytes(is, 64))
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.publicEncryptionKey(Decode.bytes(is, 64))
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.build();
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}
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@Override
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public long getVersion() {
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return 2;
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}
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@Override
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public ObjectType getType() {
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return ObjectType.PUBKEY;
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}
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@Override
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public long getStream() {
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return stream;
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}
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@Override
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public byte[] getSigningKey() {
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return publicSigningKey;
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}
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@Override
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public byte[] getEncryptionKey() {
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return publicEncryptionKey;
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}
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@Override
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public int getBehaviorBitfield() {
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return behaviorBitfield;
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}
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@Override
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public void write(OutputStream os) throws IOException {
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Encode.int32(behaviorBitfield, os);
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os.write(publicSigningKey, 1, 64);
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os.write(publicEncryptionKey, 1, 64);
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}
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public static class Builder {
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private long streamNumber;
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private int behaviorBitfield;
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private byte[] publicSigningKey;
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private byte[] publicEncryptionKey;
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public Builder() {
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}
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public Builder stream(long streamNumber) {
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this.streamNumber = streamNumber;
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return this;
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}
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public Builder behaviorBitfield(int behaviorBitfield) {
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this.behaviorBitfield = behaviorBitfield;
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return this;
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}
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public Builder publicSigningKey(byte[] publicSigningKey) {
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this.publicSigningKey = publicSigningKey;
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return this;
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}
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public Builder publicEncryptionKey(byte[] publicEncryptionKey) {
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this.publicEncryptionKey = publicEncryptionKey;
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return this;
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}
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public V2Pubkey build() {
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return new V2Pubkey(2, this);
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}
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}
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}
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