Howard Heys
Encyclopedia
Howard M. Heys is a cryptographer, currently chair of Electrical and Computer Engineering
at Memorial University of Newfoundland
. His research includes the design and analysis of stream
and block cipher
s and efficient hardware implementations of them; he participated in the design of CAST-256
and has published notable cryptanalyses
of such block ciphers as RC5
and CIKS-1
. He has served twice as co-chair of the Selected Areas in Cryptography
workshop: with Carlisle Adams
in 1999, and with Kaisa Nyberg
in 2002.
Heys received his Ph.D.
in 1994 from Queen's University
. He lives in St. John's, Newfoundland with his wife and two children.
Computer engineering
Computer engineering, also called computer systems engineering, is a discipline that integrates several fields of electrical engineering and computer science required to develop computer systems. Computer engineers usually have training in electronic engineering, software design, and...
at Memorial University of Newfoundland
Memorial University of Newfoundland
Memorial University of Newfoundland, is a comprehensive university located primarily in St...
. His research includes the design and analysis of stream
Stream cipher
In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream . In a stream cipher the plaintext digits are encrypted one at a time, and the transformation of successive digits varies during the encryption...
and block cipher
Block cipher
In cryptography, a block cipher is a symmetric key cipher operating on fixed-length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take a 128-bit block of plaintext as input, and output a corresponding 128-bit block of ciphertext...
s and efficient hardware implementations of them; he participated in the design of CAST-256
CAST-256
In cryptography, CAST-256 is a block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard ; however, it was not among the five AES finalists. It is an extension of an earlier cipher, CAST-128; both were designed according to the "CAST" design...
and has published notable cryptanalyses
Cryptanalysis
Cryptanalysis is the study of methods for obtaining the meaning of encrypted information, without access to the secret information that is normally required to do so. Typically, this involves knowing how the system works and finding a secret key...
of such block ciphers as RC5
RC5
In cryptography, RC5 is a block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's Code"...
and CIKS-1
CIKS-1
In cryptography, CIKS-1 is a block cipher designed in 2002 by A.A. Moldovyan and N.A. Moldovyan. Like its predecessor, Spectr-H64, it relies heavily on permutations of bits, so is better suited to implementation in hardware than in software....
. He has served twice as co-chair of the Selected Areas in Cryptography
Selected Areas in Cryptography
Selected Areas in Cryptography is a series of international cryptography workshops held annually in Canada, every August since 1994. Through 1999, it was held at either Queen's University or Carleton University; the locations have varied more in recent years...
workshop: with Carlisle Adams
Carlisle Adams
Carlisle M. Adams is a cryptographer and computer security researcher. Formerly senior cryptographer at Entrust, he is currently a professor at the University of Ottawa. His notable work includes the design of the block ciphers CAST-128 and CAST-256. He also helped organize the first Selected...
in 1999, and with Kaisa Nyberg
Kaisa Nyberg
Kaisa Nyberg is a cryptographer and computer security researcher, currently a professor at Helsinki University of Technology. Her notable work includes the theory of perfect nonlinear S-boxes , provably secure block cipher design , and the cryptanalysis of the stream ciphers E0 and SNOW.Nyberg...
in 2002.
Heys received his Ph.D.
Ph.D.
A Ph.D. is a Doctor of Philosophy, an academic degree.Ph.D. may also refer to:* Ph.D. , a 1980s British group*Piled Higher and Deeper, a web comic strip*PhD: Phantasy Degree, a Korean comic series* PhD Docbook renderer, an XML renderer...
in 1994 from Queen's University
Queen's University
Queen's University, , is a public research university located in Kingston, Ontario, Canada. Founded on 16 October 1841, the university pre-dates the founding of Canada by 26 years. Queen's holds more more than of land throughout Ontario as well as Herstmonceux Castle in East Sussex, England...
. He lives in St. John's, Newfoundland with his wife and two children.