gbarreiro / text-sockets

Client-server service for making queries on a file text

Text Sockets

Project for the Computer Networks course in the Telecommunications Engineering degree. It's a client-server system, where the server has a text file, so the client can ask the server for all the lines of that text file which contain the requested substring.

This connection can be done with UDP (one query per call) or establishing a TCP encrypted socket (with SSL), which will allow the client to make several queries.

Running

• Client: java Client -(udp|tls) server_ip port [client_truststore] [substring]

  • client_truststore only in TLS
  • substring only in UDP

• Server: java Server port keystore password_keystore textfile

TLS connection

For establishing the TLS encrypted connection, the client must have the certificate used by the server, in order to be able of authenticating it. To do this, you can use the keystores available in this repository: server_keystore.ks as the Server keystore and client_truststore.ks as the Client truststore. The certificate used by the Server is cert_server.cer, included within both keystores.

server_keystore.ks password is unservidor, and client_truststore.ks is uncliente.