net.i2p.data.Hash类的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中net.i2p.data.Hash类的一些代码示例，展示了Hash类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Hash类的具体详情如下：
包路径：net.i2p.data.Hash
类名称：Hash

Hash介绍

[英]Defines the hash as defined by the I2P data structure spec. A hash is the SHA-256 of some data, taking up 32 bytes.
[中]根据I2P数据结构规范定义哈希。哈希是某些数据的SHA-256，占用32字节。

代码示例

代码示例来源：origin: i2p/i2p.i2p

/**
 * @param target key to compare distances with
 * @param avoidZeroHop if true, zero-hop tunnels will be put last
 */
public TunnelInfoComparator(Hash target, boolean avoidZeroHop) {
  _base = target.getData();
  _avoidZero = avoidZeroHop;
}

代码示例来源：origin: i2p/i2p.i2p

/**
   *  Copied/modded from PersistentDataStore
   */
  private static String getRouterInfoName(Hash hash) {
    String b64 = hash.toBase64();
    return ROUTERINFO_PREFIX + b64 + ROUTERINFO_SUFFIX;
  }
}

代码示例来源：origin: i2p/i2p.i2p

@Override
public boolean equals(Object obj) {
  if (obj == null ||
    !(obj instanceof PeerProfile))
    return false;
  PeerProfile prof = (PeerProfile)obj;
  return _peer.equals(prof._peer);
}

代码示例来源：origin: i2p/i2p.i2p

/** not thread safe */
private HashComparator(Hash h) {
  _hash = h;
  tmp = new Hash(new byte[Hash.HASH_LENGTH]);
  data = new byte[2*Hash.HASH_LENGTH];
  System.arraycopy(_hash.getData(), 0, data, Hash.HASH_LENGTH, Hash.HASH_LENGTH);
}

代码示例来源：origin: i2p/i2p.i2p

public DataStructure createDataStructure() throws DataFormatException {
  Hash hash = new Hash();
  byte data[] = new byte[32];
  for (int i = 0; i < data.length; i++)
    data[i] = (byte)(i%16);
  hash.setData(data);
  return hash; 
}
public DataStructure createStructureToRead() { return new Hash(); }

代码示例来源：origin: i2p/i2p.i2p

byte tunnelIds[][] = new byte[numHops][4];
for (int i = 0; i < numHops; i++) {
  peers[i] = new Hash();
  peers[i].setData(new byte[Hash.HASH_LENGTH]);
  _context.random().nextBytes(peers[i].getData());
  _context.random().nextBytes(tunnelIds[i]);

代码示例来源：origin: i2p/i2p.i2p

/**
 * Read the next hop from the record.  If this is the outbound tunnel endpoint, this specifies
 * the gateway to which the reply should be sent.
 */
public Hash readNextIdentity() {
  //byte rv[] = new byte[Hash.HASH_LENGTH];
  //System.arraycopy(_data, OFF_SEND_IDENT, rv, 0, Hash.HASH_LENGTH);
  //return new Hash(rv);
  return Hash.create(_data, OFF_SEND_IDENT);
}

代码示例来源：origin: i2p/i2p.i2p

public DataStructure createStructureToRead() { return new Hash(); }
}

代码示例来源：origin: i2p/i2p.i2p

@Override
public String toString() {
  StringBuilder buf = new StringBuilder();
  buf.append("Transient DataStore: ").append(_data.size()).append("\nKeys: ");
  for (Map.Entry<Hash, DatabaseEntry> e : _data.entrySet()) {
    Hash key = e.getKey();
    DatabaseEntry dp = e.getValue();
    buf.append("\n\t*Key:   ").append(key.toString()).append("\n\tContent: ").append(dp.toString());
  }
  buf.append("\n");
  return buf.toString();
}

代码示例来源：origin: i2p/i2p.i2p

ByteArrayOutputStream baos = new ByteArrayOutputStream(datalen);
for (int i = 0; i < size; i++) {
  _leases.get(i).getGateway().writeBytes(baos);
  _leases.get(i).getTunnelId().writeBytes(baos);
for (int i = 0; i < size-1; i++) {
  Lease l = new Lease();
  Hash h = new Hash();
  h.readBytes(bais);
  l.setGateway(h);
  TunnelId t = new TunnelId();

代码示例来源：origin: i2p/i2p.i2p

private void addRandom(int count) {
  for (int i = 0; i < count; i++) {
    byte val[] = new byte[Hash.HASH_LENGTH];
    context.random().nextBytes(val);
    Hash h = new Hash(val);
    // in the highly unlikely chance we randomly generate a hash equal to us
    assertTrue(set.add(h) || h.equals(usHash));
  }
}

代码示例来源：origin: i2p/i2p.i2p

if (us == null)
  return true;
boolean usf = from.equals(us);
if (usf && ctx.commSystem().isEstablished(to))
  return true;
boolean ust = to.equals(us);
if (ust && ctx.commSystem().isEstablished(from))
  return true;
if (!rv && log.shouldWarn()) {
  log.warn("Cannot connect: " +
       (usf ? "us" : from.toString()) + " with mask " + cf + "\nto " +
       (ust ? "us" : to.toString()) + " with mask " + ct);

代码示例来源：origin: i2p/i2p.i2p

protected byte[] doWriteMessage() throws I2CPMessageException, IOException {
  if (_hash == null)
    throw new I2CPMessageException("Unable to write out the message as there is not enough data");
  ByteArrayOutputStream os = new ByteArrayOutputStream(Hash.HASH_LENGTH);
  try {
    _hash.writeBytes(os);
  } catch (DataFormatException dfe) {
    throw new I2CPMessageException("Error writing out the hash", dfe);
  }
  return os.toByteArray();
}

代码示例来源：origin: i2p/i2p.i2p

/** @throws IllegalArgumentException if data is not 32 bytes (null is ok) */
public Hash(byte data[]) {
  super();
  setData(data);
}

代码示例来源：origin: i2p/i2p.i2p

byte tunnelIds[][] = new byte[numHops][4];
for (int i = 0; i < numHops; i++) {
  peers[i] = new Hash();
  peers[i].setData(new byte[Hash.HASH_LENGTH]);
  _context.random().nextBytes(peers[i].getData());
  _context.random().nextBytes(tunnelIds[i]);

代码示例来源：origin: i2p/i2p.i2p

protected void doReadMessage(InputStream in, int size) throws I2CPMessageException, IOException {
  //Hash h = new Hash();
  try {
    //h.readBytes(in);
    _hash = Hash.create(in);
  //} catch (DataFormatException dfe) {
  } catch (IllegalArgumentException dfe) {
    throw new I2CPMessageException("Unable to load the hash", dfe);
  }
  //_hash = h;
}

代码示例来源：origin: i2p/i2p.i2p

private static Hash generateRandomKey() {
  byte hash[] = new byte[Hash.HASH_LENGTH];
  RandomSource.getInstance().nextBytes(hash);
  return new Hash(hash);
}

代码示例来源：origin: i2p/i2p.i2p

@Override
public String toString() {
  StringBuilder buf = new StringBuilder();
  if (_dest != null)
    buf.append(_dest.calculateHash().toString());
  else
    buf.append(_host);
  buf.append(':');
  buf.append(_port);
  return buf.toString();
}

代码示例来源：origin: i2p/i2p.i2p

ByteArrayOutputStream baos = new ByteArrayOutputStream(datalen);
for (int i = 0; i < size; i++) {
  _leases.get(i).getGateway().writeBytes(baos);
  _leases.get(i).getTunnelId().writeBytes(baos);
  Hash h = new Hash();
  h.readBytes(bais);
  _leases.get(i).setGateway(h);
  TunnelId t = new TunnelId();

代码示例来源：origin: i2p/i2p.i2p

public DataStructure createDataStructure() throws DataFormatException {
  DeliveryInstructions instructions = new DeliveryInstructions();
  //instructions.setDelayRequested(true);
  //instructions.setDelaySeconds(42);
  instructions.setDeliveryMode(DeliveryInstructions.DELIVERY_MODE_TUNNEL);
      // encryption key read/write disabled
  //instructions.setEncrypted(true);
  //SessionKey key = new SessionKey();
  //byte keyData[] = new byte[SessionKey.KEYSIZE_BYTES];
  //for (int i = 0; i < keyData.length; i++) 
  //    keyData[i] = (byte)i;
  //key.setData(keyData);
  //instructions.setEncryptionKey(key);
  Hash hash = new Hash();
  byte hashData[] = new byte[32];
  for (int i = 0; i < hashData.length; i++)
    hashData[i] = (byte)(i%32);
  hash.setData(hashData);
  instructions.setRouter(hash);
  TunnelId id = new TunnelId();
  id.setTunnelId(666);
  instructions.setTunnelId(id);
  
  return instructions;
}
public DataStructure createStructureToRead() { return new DeliveryInstructions(); }

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