00598naa#a2200193#i#450# EN\\bibl\10286 20241125044006.1 1999-8775 20151230b2015####ek#y0engy0150####ca RUS RU Symmetric encryption upgrade by introduction of information block on used algorithms in key Journal article Bryansk Bryansk State Technical University 2015 5 с. Journal article local Kuznetsova Nataliya Karlova Tatyana Bekmeshov Aleksandr Yurievich zh-szf.ru