Examples of ch.ethz.ssh2.KnownHosts

ch.ethz.ssh2.signature.RSASignature
The KnownHosts class is a handy tool to verify received server hostkeys based on the information in known_hosts files (the ones used by OpenSSH).
It offers basically an in-memory database for known_hosts entries, as well as some helper functions. Entries from a known_hosts file can be loaded at construction time. It is also possible to add more keys later (e.g., one can parse different known_hosts files).
It is a thread safe implementation, therefore, you need only to instantiate one KnownHosts for your whole application. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: KnownHosts.java,v 1.5 2006/07/30 21:59:29 cplattne Exp $




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  private SFTPv3FileAttributes statBoth(String path, int statMethod) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_STAT/SSH_FXP_LSTAT...");
      debug.flush();
    }


    sendMessage(statMethod, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {

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498    */
  public String readLink(String path) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_READLINK...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_READLINK, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {
 

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584    */
  public void setstat(String path, SFTPv3FileAttributes attr) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);
    tw.writeBytes(createAttrs(attr));


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_SETSTAT...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_SETSTAT, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }
 

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614   {
    checkHandleValidAndOpen(handle);


    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(handle.fileHandle, 0, handle.fileHandle.length);
    tw.writeBytes(createAttrs(attr));


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_FSETSTAT...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_FSETSTAT, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }

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    /* Either I am too stupid to understand the SFTP draft
     * or the OpenSSH guys changed the semantics of src and target.
     */


    TypesWriter tw = new TypesWriter();
    tw.writeString(target, charsetName);
    tw.writeString(src, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_SYMLINK...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_SYMLINK, req_id, tw.getBytes());


    expectStatusOKMessage(req_id);
  }
 

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674    */
  public String canonicalPath(String path) throws IOException
  {
    int req_id = generateNextRequestID();


    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);


    if (debug != null)
    {
      debug.println("Sending SSH_FXP_REALPATH...");
      debug.flush();
    }


    sendMessage(Packet.SSH_FXP_REALPATH, req_id, tw.getBytes());


    byte[] resp = receiveMessage(34000);


    if (debug != null)
    {
 

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360     }


    if (kxs.np.server_host_key_algo.equals("ssh-dss"))
    {
      DSASignature ds = DSASHA1Verify.decodeSSHDSASignature(sig);
      DSAPublicKey dpk = DSASHA1Verify.decodeSSHDSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-dss signature");


      return DSASHA1Verify.verifySignature(kxs.H, ds, dpk);
    }

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359       return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);
    }


    if (kxs.np.server_host_key_algo.equals("ssh-dss"))
    {
      DSASignature ds = DSASHA1Verify.decodeSSHDSASignature(sig);
      DSAPublicKey dpk = DSASHA1Verify.decodeSSHDSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-dss signature");


      return DSASHA1Verify.verifySignature(kxs.H, ds, dpk);

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350   private boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException
  {
    if (kxs.np.server_host_key_algo.equals("ssh-rsa"))
    {
      RSASignature rs = RSASHA1Verify.decodeSSHRSASignature(sig);
      RSAPublicKey rpk = RSASHA1Verify.decodeSSHRSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-rsa signature");


      return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);
    }

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  private boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException
  {
    if (kxs.np.server_host_key_algo.equals("ssh-rsa"))
    {
      RSASignature rs = RSASHA1Verify.decodeSSHRSASignature(sig);
      RSAPublicKey rpk = RSASHA1Verify.decodeSSHRSAPublicKey(hostkey);


      log.log(50, "Verifying ssh-rsa signature");


      return RSASHA1Verify.verifySignature(kxs.H, rs, rpk);

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Basic
BasicWithHTTPProxy
ch.ethz.ssh2.auth.AuthenticationManager
ch.ethz.ssh2.auth.ServerAuthenticationManager
ch.ethz.ssh2.channel.ChannelManager
ch.ethz.ssh2.channel.LocalAcceptThread
ch.ethz.ssh2.Connection
ch.ethz.ssh2.ConnectionInfo
ch.ethz.ssh2.crypto.cipher.BlockCipher
ch.ethz.ssh2.crypto.dh.DhExchange



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