Orr Dunkelman
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Orr Dunkelman () is an Israeli
cryptographer Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or '' -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior. More gen ...
and
cryptanalyst 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 se ...
, currently a professor at the
University of Haifa The University of Haifa (, ) is a public research university located on Mount Carmel in Haifa, Israel. Founded in 1963 as a branch of the Hebrew University of Jerusalem, the University of Haifa received full academic accreditation as an inde ...
Computer Science department. Dunkelman is a co-director of the Center for Cyber Law & Privacy at the University of Haifa and a co-founder of Privacy Israel, an Israeli NGO for promoting privacy in Israel.


Biography

Dunkelman received all his degrees at the Technion - Israel Institute of Technology. He received his Ph.D. degree at the age of 25, under the supervision of
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
. Before joining the University of Haifa, Dunkelman held post-doctoral positions at
KU Leuven KU Leuven (Katholieke Universiteit Leuven) is a Catholic research university in the city of Leuven, Leuven, Belgium. Founded in 1425, it is the oldest university in Belgium and the oldest university in the Low Countries. In addition to its mai ...
, at
École normale supérieure École or Ecole may refer to: * an elementary school in the French educational stages normally followed by Secondary education in France, secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing i ...
, and at the
Weizmann Institute of Science The Weizmann Institute of Science ( ''Machon Weizmann LeMada'') is a Public university, public research university in Rehovot, Israel, established in 1934, fourteen years before the State of Israel was founded. Unlike other List of Israeli uni ...
.


Contributions to cryptanalysis

Among his contributions to cryptanalysis are: * Dissection attack – joint work with Itai Dinur, Nathan Keller, and
Adi Shamir Adi Shamir (; born July 6, 1952) is an Israeli cryptographer and inventor. 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 identification sc ...
, recipient of the Best Paper Award at the
Crypto Crypto commonly refers to: * Cryptography, the practice and study of hiding information * Cryptocurrency, a type of digital currency based on cryptography Crypto or krypto may also refer to: Cryptography * Cryptanalysis, the study of methods f ...
2012 conference. * Rectangle attack – joint work with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
and Nathan Keller. * New variants of differential-linear,
boomerang A boomerang () is a thrown tool typically constructed with airfoil sections and designed to spin about an axis perpendicular to the direction of its flight, designed to return to the thrower. The origin of the word is from Australian Aborigin ...
, and
slide Slide or Slides may refer to: Places * Slide, California, former name of Fortuna, California Arts, entertainment, and media Music Albums * ''Slide'' (Lisa Germano album), 1998 * ''Slide'' (George Clanton album), 2018 *''Slide'', by Patrick Glee ...
attacks – joint works with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
,
Adi Shamir Adi Shamir (; born July 6, 1952) is an Israeli cryptographer and inventor. 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 identification sc ...
, and other co-authors. * Breaking (together with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
, Sebastiaan Indesteege, Nathan Keller, and
Bart Preneel Bart Preneel (born 15 October 1963 in Leuven, Belgium) is a Belgium, Belgian cryptographer and cryptanalyst. He is a professor at Katholieke Universiteit Leuven, in the COSIC group. He was the president of the International Association for Crypt ...
) KeeLoq – a
block cipher In cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called ''blocks''. Block ciphers are the elementary building blocks of many cryptographic protocols. They are ubiquitous in the storage a ...
used in remote keyless entry systems by multiple companies. * Devising (jointly with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
) a practical attack on A5/1 – the cipher used in
GSM The Global System for Mobile Communications (GSM) is a family of standards to describe the protocols for second-generation (2G) digital cellular networks, as used by mobile devices such as mobile phones and Mobile broadband modem, mobile broadba ...
security mechanisms. * Attacking reduced-round variants of many
block ciphers In cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called ''blocks''. Block ciphers are the elementary building blocks of many cryptographic protocols. They are ubiquitous in the storage a ...
, including AES, Serpent,
IDEA In philosophy and in common usage, an idea (from the Greek word: ἰδέα (idea), meaning 'a form, or a pattern') is the results of thought. Also in philosophy, ideas can also be mental representational images of some object. Many philosophe ...
,
GOST GOST () refers to a set of international technical standards maintained by the Euro-Asian Council for Standardization, Metrology and Certification (EASC), a regional standards organization operating under the auspices of the Commonwealth of I ...
, DES, KASUMI, MISTY1,
Camellia ''Camellia'' (pronounced or ) is a genus of flowering plants in the family Theaceae. They are found in tropical and subtropical areas in East Asia, eastern and South Asia, southern Asia, from the Himalayas east to Japan and Indonesia. There are ...
, Skipjack and others (in joint works with various coauthors).


New cryptographic primitives

Dunkelman has taken part in the design of several new cryptographic primitives: * HAIFA construction (with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
) – a cryptographic structure used in the design of
hash function A hash function is any Function (mathematics), function that can be used to map data (computing), data of arbitrary size to fixed-size values, though there are some hash functions that support variable-length output. The values returned by a ...
s. * KATAN and KTANTAN (with Cristophe De Canniere and Miroslav Knežević) - a family of small and efficient hardware-oriented
block ciphers In cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called ''blocks''. Block ciphers are the elementary building blocks of many cryptographic protocols. They are ubiquitous in the storage a ...
. * SHAvite-3 (with
Eli Biham Eli Biham () is an Israeli cryptographer and cryptanalyst who is a professor at the Technion - Israel Institute of Technology Computer Science department. From 2008 to 2013, Biham was the dean of the Technion Computer Science department, afte ...
), a
hash function A hash function is any Function (mathematics), function that can be used to map data (computing), data of arbitrary size to fixed-size values, though there are some hash functions that support variable-length output. The values returned by a ...
which was one of the 14 semifinalists in the
NIST hash function competition The NIST hash function competition was an open competition held by the US National Institute of Standards and Technology (NIST) to develop a new hash function called SHA-3 to complement the older SHA-1 and SHA-2. The competition was formally a ...
.


Awards and honors

Dunkelman received the Krill Prize from the Wolf Foundation in 2014, and papers he co-authored won the Best Paper Award at the
Crypto Crypto commonly refers to: * Cryptography, the practice and study of hiding information * Cryptocurrency, a type of digital currency based on cryptography Crypto or krypto may also refer to: Cryptography * Cryptanalysis, the study of methods f ...
conference (2012) and at the
Fast Software Encryption The International Association for Cryptologic Research (IACR) is a non-profit scientific organization that furthers research in cryptology and related fields. The IACR was organized at the initiative of David Chaum at the CRYPTO '82 conference. ...
(FSE) conference (2012).


References


External links

* *
Webpage of the Center for Cyber Law & Privacy at the University of Haifa
* * {{DEFAULTSORT:Dunkelman, Orr 1980 births Israeli computer scientists Dunkelman Orr Israeli Jews Living people Modern cryptographers Dunkelman Orr