feature4900 644 B

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  1. o Minor features:
  2. - Avoid hash-flooding denial-of-service attacks by using the secure
  3. SipHash-2-4 hash function for our hashtables. Without this
  4. feature, an attacker could degrade performance of a targeted
  5. client or server by flooding their data structures with a large
  6. number of data entries all calculated to be stored at the same
  7. hash table position, thereby degrading hash table
  8. performance. With this feature, hash table positions are derived
  9. from a randomized cryptographic key using SipHash-2-4, and an
  10. attacker cannot predict which entries will collide.
  11. Closes ticket 4900.