TCP Attacks Flashcards

(2 cards)

1
Q

Advantages for TCP SYN Cookies (3)

A
  • Server does not need to allocate resources after the first SYN packet.
  • Client does not need to be aware that the server is using SYN cookies
  • SYN cookies don’t requires changes in the specification of the TCP protocol.
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2
Q

Disadvantages of TCP SYN Cookies

A
  • Calculating a may be CPU consuming
  • TCP options cannot be regularly negotiated using cookies, in all implementations
  • ACK/SEQ number are only 32 Bit long
  • Efficient implementation may be vulnerable to cryptoanalysis after receiving a sufficient number of cookies.
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