RSA in practice Initializing SSL/TLS with https://youtube.com In this example the youtube server is authenticated via it’s certificate and an encrypted communication session established. Taking a packet capture of the process enables simple identification of the TLSv1.1 handshake (as described: http://en.wikipedia.org/wiki/Transport_Layer_Security#TLS_handshake): Packet capture download:¬†http://mchost/sourcecode/security_notes/youtube_TLSv1.1_handshake_filtered.pcap The packet capture starts with the TCP three-way handshake¬†– Frames 1-3 With a TCP connection established the TLS handshake begins, Negotiation phase: ClientHello – Frame 4.. Read More