Summary Network and Protocol Security

Network and Protocol Security Mechanisms

 IPSEC - Internet Protocol Security

o Uses public key cryptography to provide encryption, access
control, nonrepudiation, and message authentication, all using IP
based protocols

o Used in VPN's - operates in transport or tunnel mode

 Kerberos

o Offers single sign-on solution for users and provides protection
for logon credentials

o Hybrid encryption to provide reliable authentication protection

 SSH - Secure Shell

o End-to-end encryption technique

o Can function as a VPN

 Signal Protocol

o Cryptographic protocol that provides encryption for voice
communications, video conferencing, and text message services
– non-federated - core element in the messaging app named
Signal

 S-RPC - Secure Remote Procedure

o Authentication service and is simply a means to prevent
unauthorized execution of code on remote systems

 SSL Secure Sockets Layer

o Encryption protocol developed by NetScape to protect
communication between a web server and web browser

 TLS Transport Layer Security

o Functions the same as SSL, but uses stronger authentication and
encryption protocols

 SSL and TLS




1