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CPSC 317 (Security (Asymmetric Encryption (Breaking Encryption (Known…

- - - - PGP
      - SSL
    - - Known-plaintext attack
      - Chosen-plaintext attack
      - Ciphertext-only attack
- - - - Recursive
        
        Recursive name queries are generally made by a DNS client to a DNS server, or by a DNS server that is configured to pass unresolved name queries to another DNS server, in the case of a DNS server configured to use a forwarder.
      - Iterative
        
        An iterative name query is one in which a DNS client allows the DNS server to return the best answer it can give based on its cache or zone data. If the queried DNS server does not have an exact match for the queried name, the best possible information it can return is a referral (that is, a pointer to a DNS server authoritative for a lower level of the domain namespace).
      - Difference <LINK>
  - - - Non-persistant
        
        At most one object is sent over TCP connection (one request, one response)
        
        Connection is closed as soon as data is transferred
      - Persistant
        
        Responses are received in the same order as the requests
        
        Pipelining: client may send several requests without waiting for response
        
        Multiple requests can be sent over single connection
- - - - 5.3 Intra-AS Routing
      - 4.3.4 NAT
        
        NAT forwarding table
      - BGP
        
        iBGP
        
        eBGP
        
        TODO!! THERES MORE
    - - CIDR format
  - - - Ensures data arrives in order
      - Recovers lost data (if required)
      - Identifies process (i.e. application) on machine.
    - - Nitty Gritty
        
        8.7, 8.71 IPSec and Virtual Private Networks
        
        3.5.3 Round-Trip Time
        
        3.2 Multiplexing and demultiplexing
      - 3.3 UDP #
      - 3.4 Reliable delivery
        
        (GBN) Go-back-n
        
        (SR) Selective repeat
      - 3.5 TCP #
        
        3.5.2 TCP Segment Structure
        
        3.5.5 Flow Control
        
        Uses a sliding window for flow/congestion control
        
        Flow: The maximum number of unacknowledged bytes that a system can send is the smaller of two numbers
        
        1) The send buffer size on the sending system
        
        2) The receive window size that the receiving system advertises to the sending system
        
        Congestion window: limits the maximum number of segments transmitted
        into the network, based on implicit feedback received from the network
        
        3.5.6 TCP Connection Management
        
        3.7, 3.6-3.6.2 Congestion Control
- - - - DHCP
        
        DHCP LOOKUP PROCESS
      - 6.2 Error detection and correction techniques
      - 6.4.1 ARP
        
        ARP TABLE PROCESS
        
        ARP RESOLUTION PROCESS
        
        THE ANALOGY
    - - Delays
        
        Transmission delay
        
        Queuing delay
        
        Processing delay
        
        Propagation delay
      - Throughput/Goodput
      - RTT (Round trip time)
      - Latency
      - Bandwidth
      - Jitter
      - TRAFFIC INTENSITY