Streebog as a Random Oracle

ePrint Report: Streebog as a Random Oracle

Liliya Akhmetzyanova, Alexandra Babueva, Andrey Bozhko

The random oracle model is an instrument used for proving that protocol has no structural flaws when settling with standard hash properties is impossible or fairly difficult. In practice, however, random oracles have to be instantiated with some specific hash functions, which are not random oracles. Hence, in the real world, an adversary has broader capabilities than considered in the random oracle proof — it can exploit …

eprint report flaws functions hash hash functions oracle practice protocol random report standard