security in the internet Flashcards
(15 cards)
Front
Back
What was ARPANET and when did it begin?
ARPANET was the precursor to the Internet
What are the main differences between IPv4 and IPv6?
IPv4 uses 32-bit addresses and remains dominant
What was the first major Internet security incident?
The 1988 Internet Worm
Why has IPv6 adoption been slow?
Despite being standardized in 1997
What are Autonomous Systems (AS) in IP routing?
An AS is a group of IP networks managed by one organization. They include stub (one connection)
What is BGP and why is it vulnerable?
The Border Gateway Protocol helps ASs share routing info. It lacks built-in validation
What incident highlighted BGP vulnerability?
In 2018
What is the role of TLS in Internet security?
TLS (formerly SSL) secures HTTP by encrypting traffic end-to-end
What is Forward Secrecy and why is it important?
Forward Secrecy ensures that even if a server’s private key is compromised
What is the difference between semantic security and basic encryption?
Semantic security hides actual message content; basic encryption only makes content indistinguishable from similar-length messages
What is HSTS and how does it enhance security?
HTTP Strict Transport Security tells browsers to only use HTTPS in the future for a site
What are TLS “terminators” and why are they used?
TLS terminators decrypt HTTPS traffic on the server side to allow internal monitoring
What is QUIC and how does it relate to HTTP/3?
QUIC is a UDP-based transport protocol replacing TCP+TLS in HTTP/3. It aims for faster performance but introduces new complexities in securing web traffic.
What vulnerability remains in TLS according to ACDM19?
TLS can leak information through traffic patterns; attackers can infer visited websites or actions with high accuracy even without decryption
