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Eugene Panferov

Publications and source records attributed to Eugene Panferov.

3 recordsLinked to original sources

A Next-Generation Data Language Proposal

This paper analyzes the fatal drawback of the relational calculus not allowing relations to be domains of relations, and its consequences entrenched in SQL. In order to overcome this obstacle we propose "multitable index" - an easily implementable upgrade to an existing data storage, which enables a revolutionary change in the field of data languages - the demotion of relational calculus and tables. We propose a new data language with "pragmatic typisation" where types represent domain knowledge but not memory management. The language handles sets of tuples as first class data objects and supports set operation and tuple (de)composition operations as fluently as basic arith. And it is equally suitable for building-into a general purpose language as well as querying a remote DB (thus removing the ubiquitous gap between SQL and application).

cs.DB

A Canonical Password Strength Measure

We notice that the "password security" discourse is missing the most fundamental notion of the "password strength" -- it was never properly defined. We propose a canonical definition of the "password strength", based on the assessment of the efficiency of a set of possible guessing attack. Unlike naive password strength assessments our metric takes into account the attacker's strategy, and we demonstrate the necessity of that feature. This paper does NOT advise you to include "at least three capital letters", seven underscores, and a number thirteen in your password.

cs.CR

An Observation About Passphrases: Syntax vs Entropy

On the premise that we are using passwords composed of multiple English words, we argue that using syntactically correct passphrases has no significant impact on the security in comparison to randomly arranged collections of words. We only analyze the contribution of the syntax itself. A comparison to the other kinds of passwords is out of the scope.

cs.CR