Advanced SSL Topics - Implementing SSL/TLS Using Cryptography and PKI - page 438

read_pos += 2;
switch ( i )
{
case 0:
load_huge( &parameters->server_dh_key.p, read_pos, length );
break;
case 1:
load_huge( &parameters->server_dh_key.g, read_pos, length );
break;
case 2:
load_huge( &parameters->server_dh_key.Y, read_pos, length );
break;
}
read_pos += length;
}
return read_pos;
}

client server

client hello

server hello

certificate

server key exchange

hello done

key exchange

change cipher spec

finished

change cipher spec

finished

Figure 8-4: TLS handshake with server key exchange

The server key exchange message is just a list of parameters; the receiver must
know how to interpret them. Each element p , g , and Ys are given as variable-length