olemus
universaalräsimisega valitud räsifunktsioon
= hash function randomly selected from a family of hash functions with certain mathematical properties

ülevaateid
https://crypto.stackexchange.com/questions/52984/what-is-a-universal-hash-function
https://en.wikipedia.org/wiki/Universal_hashing
https://www.cs.cmu.edu/~avrim/451f11/lectures/lect1004.pdf
https://courses.cs.washington.edu/courses/cse525/13sp/scribe/lec5.pdf
https://www.cs.purdue.edu/homes/hmaji/teaching/Fall%202017/lectures/14.pdf
https://www.wisdom.weizmann.ac.il/~naor/PAPERS/uowhf.pdf