wolfssl-examples/tls/tutorial-tcp-tls.md

TCP/TLS Tutorial

<<<<<<< HEAD

Client TLS Tutorial

client-tls.c

Again, we will need to import the security library. Just like in the server, add an '#include' statement in your client program. Next we will need to add a global 'cert' variable: '''c const char* cert = "./certs/ca-cert.pem"; ''' Now comes changing the 'ClientGreet()' function so its arguments and functions incorporate the security library. '''c void ClientGreet(int sock, CYASSL* ssl)

if (CyaSSL_write(ssl, send, strlen(send)) != strlen(send)) {

if (CyaSSL_read(ssl, receive, MAXDATASIZE) == 0) { ''' You can think of this as, instead of just a normal read and write, it is now a “secure” read and write. We also need to change the call to 'ClientGreet()' in 'main()'. Instead of calling directly to it, we should make a call to a 'Security()' that will then check the server for the correct 'certs'. To do this, change: '''c ClientGreet(sock(fd)); ''' to '''c Security(sockfd); ''' Now we just have to make the 'Security()'

a62664a865