TY  - JOUR
AU  - A. Yu. Zubov
TI  - On the concept of a~$\varepsilon$-perfect cipher
JO  - Prikladnaâ diskretnaâ matematika
PY  - 2016
SP  - 45
EP  - 52
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PDM_2016_3_a2/
LA  - ru
ID  - PDM_2016_3_a2
ER  -