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StrongServer.javaAPI DocExample1566Tue Feb 24 10:27:24 GMT 1998None

StrongServer

public class StrongServer extends Object

Fields Summary
protected KeyStore
mKeyStore
Constructors Summary
public StrongServer(KeyStore keystore)

 mKeyStore = keystore;
Methods Summary
public booleanauthenticate(java.io.InputStream inStream)

    DataInputStream in = new DataInputStream(inStream);

    String user = in.readUTF();
    long t = in.readLong();
    double q = in.readDouble();
    int length = in.readInt();
    byte[] signature = new byte[length];
    in.readFully(signature);

    Signature s = Signature.getInstance("DSA");
    s.initVerify(mKeyStore.getCertificate(user).getPublicKey());
    s.update(Protection.makeBytes(t, q));
    return s.verify(signature);
public static voidmain(java.lang.String[] args)

    if (args.length != 2) {
      System.out.println("Usage: StrongServer keystore storepass");
      return;
    }
    
    String keystorefile = args[0];
    String storepass = args[1];
    
    int port = 7999;
    ServerSocket s = new ServerSocket(port);
    Socket client = s.accept();

    KeyStore keystore = KeyStore.getInstance();
    keystore.load(new FileInputStream(keystorefile), storepass);
    StrongServer server = new StrongServer(keystore);
    if (server.authenticate(client.getInputStream()))
      System.out.println("Client logged in.");
    else
      System.out.println("Client failed to log in.");

    s.close();