Add nasl functions for checking ssl/tls secure renegotiation and performing re-handshake

[jjnicola]

What:
Add nasl functions for checking ssl/tls secure renegotiation and performing re-handshake

Jira: SC-394

Why:

How:
Use s_server and the different tls versions (tls1_2 and tls_3). Also, different option are possible like -no_renegotation.
openssl s_server -tls1_3 -key key.pem -cert cert.pem -accept 44330 -www -no_renegotiation

Run the following script. Comment/uncomment the

port = 44330;
if( ! soc = open_sock_tcp( port ) )
  exit( 0 );

# Use "7" for  TLS 1.2, "8" for  TLS 1.3,
tls_version = 7; 
soc = socket_negotiate_ssl( socket:soc, transport: tls_version );

if (! soc)
   {
     display("no socket");
     return;
   }

display("There is a socket");     

#send( socket:soc, data:'GET / HTTP/1.0\r\n\r\n' );
send( socket:soc, data:'FFFF\r\n\r\n' );
display("Recieved !!!");     
res = recv( socket:soc, length:512 );
display( res );

res = socket_check_ssl_safe_renegotiation(socket:soc);
display("status:", res);

res = socket_ssl_do_handshake(socket:soc);
display("handshake:", res);

sleep(1);

display("Close!!");     
close( soc );
exit( 0 );

Checklist:

• Tests
• CHANGELOG Entry