5. What ‘s SSL/TLS?
Transport Layer Security (TLS) and Its
predecessor, Secure Sockets Layer (SSL),
are cryptographic protocols that provide
communication security over the Internet.
TLS and SSL encrypt the segments of
network connections above the
Transport Layer.
6. Cryptography Methods
• Key Exchange: Using Assymmetric Cryptography.
• Privacy: Using Symmetric Cryptography.
• Message Integrity: Using Message Authentication
Codes (MAC).
7. Where SSL/TLS Fit?
HTTP SMTP POP3 HTTPS SSMTP SPOP3
80 25 110 443 465 995
Secure Sockets Layer
Transport
Network
Link