computational indistinguishability
arvutuslik eristamatus
olemus
eristamatus krüptograafias:
kaks tõenäosusjaotust \(D_1\) ja \(D_2\) on \(S\)-eristamatud,
kui iga ajas \(t\) töötava eristusalgoritmi \(A\) korral
\(| \mathsf{P}[A(X_1)=1] - \mathsf{P}[A(X_2)=1] | < \frac{t}{S}\),
kus \(X_1\leftarrow D_1\) ja \(X_2\leftarrow D_2\)
=
in cryptography, two families of distributions are computationally indistinguishable if no efficient algorithm can tell the difference between them except with negligible probability
ülevaateid
https://en.wikipedia.org/wiki/Computational_indistinguishability
https://www.cs.purdue.edu/homes/hmaji/teaching/Fall%202015/lectures/04.pdf
https://kodu.ut.ee/~swen/courses/crypto-ii/03-indistinguishability.pdf
https://www.cs.cornell.edu/courses/cs6830/2009fa/scribes/lec08.pdf
https://eprint.iacr.org/2006/148.pdf
vt ka
- krüptogrammide eristamatus