Alex Biryukov is a
cryptographer
Cryptography, or cryptology (from grc, , translit=kryptós "hidden, secret"; and ''graphein'', "to write", or ''-logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adver ...
, currently a full professor at the
University of Luxembourg
The University of Luxembourg ( French: ''Université du Luxembourg''; German: ''Universität Luxemburg''; Luxembourgish: ''Universitéit Lëtzebuerg'') is a public research university in Luxembourg.
History
The University of Luxembourg was foun ...
. His notable work includes the design of the
stream cipher
stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each plaintext digit is encrypted one at a time with the corresponding digit of the keystream ...
LEX
Lex or LEX may refer to:
Arts and entertainment
* ''Lex'', a daily featured column in the ''Financial Times''
Games
* Lex, the mascot of the word-forming puzzle video game ''Bookworm''
* Lex, the protagonist of the word-forming puzzle video ga ...
, as well as the
cryptanalysis
Cryptanalysis (from the Greek ''kryptós'', "hidden", and ''analýein'', "to analyze") refers to the process of analyzing information systems in order to understand hidden aspects of the systems. Cryptanalysis is used to breach cryptographic sec ...
of numerous
cryptographic primitive
Cryptographic primitives are well-established, low-level cryptographic algorithms that are frequently used to build cryptographic protocols for computer security systems. These routines include, but are not limited to, one-way hash functions and ...
s. In 1998, he developed
impossible differential cryptanalysis
In cryptography, impossible differential cryptanalysis is a form of differential cryptanalysis for block ciphers. While ordinary differential cryptanalysis tracks differences that propagate through the cipher with greater than expected probability, ...
together with
Eli Biham
Eli Biham ( he, אלי ביהם) is an Israeli cryptographer and cryptanalyst, currently a professor at the Technion - Israel Institute of Technology Computer Science department. Starting from October 2008 and till 2013, Biham was the dean of t ...
and
Adi Shamir
Adi Shamir ( he, עדי שמיר; born July 6, 1952) is an Israeli cryptographer. He is a co-inventor of the Rivest–Shamir–Adleman (RSA) algorithm (along with Ron Rivest and Len Adleman), a co-inventor of the Feige–Fiat–Shamir identificat ...
. In 1999, he developed the
slide attack
The slide attack is a form of cryptanalysis designed to deal with the prevailing idea that even weak ciphers can become very strong by increasing the number of rounds, which can ward off a differential attack. The slide attack works in such a way ...
together with
David Wagner. In 2009 he developed, together with
Dmitry Khovratovich
Dmitry Khovratovich is a cryptographer, currently a Lead Cryptographer for the Dusk Network, researcher for the Ethereum Foundation, and member of the International Association for Cryptologic Research. He developed, together with Alex Biryu ...
, the first cryptanalytic attack on full-round
AES-192 and AES-256 that is faster than a
brute-force attack
In cryptography, a brute-force attack consists of an attacker submitting many passwords or passphrases with the hope of eventually guessing correctly. The attacker systematically checks all possible passwords and passphrases until the correct ...
. In 2015 he developed the
Argon2
Argon2 is a key derivation function that was selected as the winner of the 2015 Password Hashing Competition. It was designed by Alex Biryukov, Daniel Dinu, and Dmitry Khovratovich from the University of Luxembourg. The reference implementation ...
key derivation function
In cryptography, a key derivation function (KDF) is a cryptographic algorithm that derives one or more secret keys from a secret value such as a master key, a password, or a passphrase using a pseudorandom function (which typically uses a crypto ...
with Daniel Dinu and Dmitry Khovratovich.
Since 1994 Alex Biryukov is a member of the
International Association for Cryptologic Research
International is an adjective (also used as a noun) meaning "between nations".
International may also refer to:
Music Albums
* ''International'' (Kevin Michael album), 2011
* ''International'' (New Order album), 2002
* ''International'' (The T ...
.
References
External links
Alex Biryukov’s current page at the University of LuxembourgCryptoLUX > Alex BiryukovAlex Biryukov's old home page at K.U. LeuvenAlex Biryukov - Google Scholar Citations
Modern cryptographers
Living people
Year of birth missing (living people)
Academics of the University of Luxembourg
Israeli computer scientists
Israeli cryptographers
Russian cryptographers
21st-century Russian inventors
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