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American cryptologist and academic (born 1945)
Martin Edward Hellman (born October 2, 1945) is an American cryptologist and mathematician, best known for his invention of public-key cryptography in
Martin_Hellman
Method of exchanging cryptographic keys
cryptographic key over a public channel. It is named after Whitfield Diffie and Martin Hellman who published it in 1976. DH is one of the earliest practical examples
Diffie–Hellman_key_exchange
Algorithm for computing logarithms
by Stephen Pohlig and Martin Hellman, who credit Silver with its earlier independent but unpublished discovery. Pohlig and Hellman also list Richard Schroeppel
Pohlig–Hellman_algorithm
Form of public key cryptography
The Merkle–Hellman knapsack cryptosystem was one of the earliest public key cryptosystems. It was published by Ralph Merkle and Martin Hellman in 1978.
Merkle–Hellman knapsack cryptosystem
Merkle–Hellman_knapsack_cryptosystem
American cryptographer (born 1944)
pioneers of public-key cryptography along with Martin Hellman and Ralph Merkle. Diffie and Hellman's 1976 paper New Directions in Cryptography introduced
Whitfield_Diffie
Problem in cryptography
The Diffie–Hellman problem (DHP) is a mathematical problem first proposed by Whitfield Diffie and Martin Hellman in the context of cryptography and serves
Diffie–Hellman_problem
Open letter about extinction risk from AI
Kurzweil, Max Tegmark, Lex Fridman, Martin Rees, Demis Hassabis, Dawn Song, Ted Lieu, Ilya Sutskever, Martin Hellman, Bill McKibben, Angela Kane, Audrey
Statement on AI Extinction Risk
Statement_on_AI_Extinction_Risk
American cryptographer (born 1952)
Computer History Museum Fellow "for his work, with Whitfield Diffie and Martin Hellman, on public key cryptography." 2011 National Inventors Hall of Fame,
Ralph_Merkle
Password cracking dataset
Philippe Oechslin as an application of an earlier, simpler algorithm by Martin Hellman. For user authentication, passwords are stored either as plaintext or
Rainbow_table
Cryptographic system with public and private keys
history interview with Martin Hellman, Charles Babbage Institute, University of Minnesota. Leading cryptography scholar Martin Hellman discusses the circumstances
Public-key_cryptography
Day of the year
(died 2025) 1944 – Vernor Vinge, American author (died 2024) 1945 – Martin Hellman, American cryptographer and academic 1945 – Don McLean, American singer-songwriter
October_2
American dramatist and screenwriter (1905–1984)
Lillian Florence Hellman (June 20, 1905 – June 30, 1984) was an American playwright, prose writer, memoirist, and screenwriter known for her success on
Lillian_Hellman
Surname list
Lillian Hellman (1905–1984), American dramatist and screenwriter Louis Hellman (born 1936), British architect and cartoonist Martin Hellman (born 1945)
Hellman
Award
developing fiber-optic communications, and Martin Hellman and Whitfield Diffie for creating the Diffie–Hellman key exchange. 1975: James Rhyne Killian 1976:
Marconi_Prize
Private university in California, US
Technology 1957. Graduate school alumni who received the Turing Award: Martin Hellman: BE New York University 1966, MS Stanford University 1967, Ph.D. Stanford
Stanford_University
American annual computer science prize
original on July 4, 2017. Retrieved March 1, 2016. Jeffrey R. Yost. "Martin Hellman - A.M. Turing Award Laureate". Association for Computing Machinery.
Turing_Award
Practice and study of secure communication techniques
Whitfield Diffie and Martin Hellman published the Diffie–Hellman key exchange algorithm. In 1977 the RSA algorithm was published in Martin Gardner's Scientific
Cryptography
American cryptographer
same field from Stanford University in 1981 and 1984, respectively. Martin Hellman was his dissertation advisor. Elgamal joined the technical staff at
Taher_Elgamal
Used for encoding or decoding ciphertext
Whitfield Diffie and Martin Hellman constructed the Diffie–Hellman algorithm, which was the first public key algorithm. The Diffie–Hellman key exchange protocol
Key_(cryptography)
Sciences Michael H. Hart, astrophysicist, author of three books on history Martin Hellman (1962), electrical engineer and cryptologist who was instrumental in
List of Bronx High School of Science alumni
List_of_Bronx_High_School_of_Science_alumni
Cryptographic method
Diffie and Martin Hellman published a cryptographic protocol called the Diffie–Hellman key exchange (D–H) based on concepts developed by Hellman's PhD student
Key_exchange
Algorithm for public-key cryptography
public-private key cryptosystem is attributed to Whitfield Diffie and Martin Hellman, who published this concept in 1976. They also introduced digital signatures
RSA_cryptosystem
Feature of U.S. president Richard Nixon's foreign policy
in the lead-up to and during the 2022 invasion of Ukraine. In 2015, Martin Hellman stated that "nuclear weapons are the card that Putin has up his sleeve
Madman_theory
zero-knowledge proofs, and of Semantic security. Martin Hellman, US, (public) co-inventor of the Diffie-Hellman key-exchange protocol. Neal Koblitz, independent
List_of_cryptographers
Encryption device promoted by the NSA in the 1990s
with Martin Hellman Oral history interview 2004, Palo Alto, California. Charles Babbage Institute, University of Minnesota, Minneapolis. Hellman describes
Clipper_chip
British mathematician and cryptographer (1950–2015)
Diffie–Hellman key exchange. He was then working at GCHQ and was therefore unable to publicise his research as his work was classified. Martin Hellman, who
Malcolm_J._Williamson
Mathematical scheme for verifying the authenticity of digital documents
not directly query the string, x, on S. In 1976, Whitfield Diffie and Martin Hellman first described the notion of a digital signature scheme, although they
Digital_signature
Activist advocating widespread use of strong cryptography
available work on public-key cryptography, by Whitfield Diffie and Martin Hellman, and the US government publication of the Data Encryption Standard (DES)
Cypherpunk
Form of cryptanalysis
Introduced by Martin Hellman and Susan K. Langford in 1994, the differential-linear attack is a mix of both linear cryptanalysis and differential cryptanalysis
Differential-linear_attack
the paper "New Directions in Cryptography" by Whitfield Diffie and Martin Hellman. It introduced a radically new method of distributing cryptographic
History_of_cryptography
Engineering school within Stanford University
Award, 2019; Academy Award, Scientific and Technical, 2013, 2003, 1992 Martin Hellman professor Turing Award, 2015; Marconi Award, 2000; IEEE Hamming Award
Stanford University School of Engineering
Stanford_University_School_of_Engineering
United States Navy admiral
memos back and forth to himself approving his solutions." In 1976, Martin Hellman and Whitfield Diffie published their paper, New Directions in Cryptography
Bobby_Ray_Inman
Although the probability of a nuclear war per year is slim, Professor Martin Hellman has described it as inevitable in the long run; unless the probability
Global_catastrophe_scenarios
Museum in Mountain View, California
Shima, Donald D. Chamberlin, Robert Everett 2011: Whitfield Diffie, Martin Hellman, Ralph Merkle, Bill Joy 2012: Fernando J. Corbató, Edward Feigenbaum
Computer_History_Museum
Cryptography algorithm
and Bruce Schneier. CTR mode was introduced by Whitfield Diffie and Martin Hellman in 1979. CTR mode has similar characteristics to OFB, but also allows
Block cipher mode of operation
Block_cipher_mode_of_operation
Information classified since created; generally referring to nuclear weapons
review after legislative options were described as politically unviable. Martin Hellman argued that even if publication were blocked in journals, researchers
Born_secret
American singer and actor (1917–1995)
"The Screen: 'Toys in the Attic' Opens:Scenario Is From Play by Lillian Hellman". The New York Times. Archived from the original on June 5, 2023. Retrieved
Dean_Martin
Number of bits in a key used by a cryptographic algorithm
a large budget; some cryptographers including Whitfield Diffie and Martin Hellman complained that this made the cipher so weak that NSA computers would
Key_size
Annual award
Diffie (2010), Ronald Rivest, Adi Shamir, and Leonard Adleman (2011), Martin Hellman (2012) Burt Kaliski (2025) List of computer science awards List of mathematics
RSA Award for Excellence in Mathematics
RSA_Award_for_Excellence_in_Mathematics
Overview of and topical guide to algorithms
algorithms and data structures Whitfield Diffie — Diffie–Hellman key exchange Martin Hellman — Diffie–Hellman key exchange Ron Rivest — RSA and cryptographic algorithms
Outline_of_algorithms
Technical award
Michael Luby, Amin Shokrollahi 2011: Toby Berger 2010: Whitfield Diffie, Martin Hellman and Ralph Merkle 2009: Peter Franaszek 2008: Sergio Verdú 2007: Abraham
IEEE_Richard_W._Hamming_Medal
Early unclassified symmetric-key block cipher
There was criticism received from public-key cryptography pioneers Martin Hellman and Whitfield Diffie, citing a shortened key length and the mysterious
Data_Encryption_Standard
American electrical engineer (1952/1953–2017)
graduate student of Martin Hellman's at Stanford University in the mid-1970s, he helped develop the underlying concepts of Diffie-Hellman key exchange, including
Stephen_Pohlig
Algorithm trading more space for lower time
since the very earliest operating systems.[citation needed] In 1980 Martin Hellman first proposed using a time–memory tradeoff for cryptanalysis. A common
Space–time_tradeoff
Science and engineering award
Jim Ellis) 1994: Ivan Sutherland, Bill Atkinson, Whitfield Diffie and Martin Hellman, Murray Turoff and Starr Roxanne Hiltz, Lee Felsenstein, and the WELL
EFF_Pioneer_Award
Type of prime number
also given by Rivest and Silverman. It is shown by Stephen Pohlig and Martin Hellman in 1978 that if all the factors of p − 1 are less than logc p, then
Strong_prime
American cryptographer and entrepreneur (born 1973)
Stanford University in 1995, where he worked part-time with Martin Hellman. According to Hellman, Kocher is mostly self-taught in cryptography and already
Paul_Carl_Kocher
American mathematician (1938–2012)
Norman Abramson Doctoral students Joy A. Thomas Mohammad Reza Aref Martin Hellman Peter E. Hart Abbas El Gamal Andrew R. Barron Website www-isl.stanford
Thomas_M._Cover
Routing protocol
field of cryptography through the work of public key cryptography, Martin Hellman, Whitfield Diffie and Ralph Merkle. While public key cryptography encrypted
Mix_network
American-Jewish engineer (1926–2011)
the NBS proposal for a Data Encryption Standard in 1976, along with Martin Hellman and Whitfield Diffie of Stanford University. In 1971, he predicted the
Paul_Baran
1958 film by Philip Dunne
Being Released Next Month Has Actual Photos of 'Unidentified Objects' Martin, Hellman in 'Jeannie'". The New York Times. p. 26. THOMAS M. PRYOR (August 7
Ten_North_Frederick_(film)
Invented the Cash Register". www.invent.org. June 4, 2024. "NIHF Inductee Martin Hellman and Public Key Cryptography History". www.invent.org. June 4, 2024.
List of National Inventors Hall of Fame inductees
List_of_National_Inventors_Hall_of_Fame_inductees
Scientific organization for research in cryptology
Jacques Stern (2005) Gustavus Simmons (2005) Kevin McCurley (2005) Martin Hellman (2006) Gilles Brassard (2006) Silvio Micali (2007) Hideki Imai (2007)
International Association for Cryptologic Research
International_Association_for_Cryptologic_Research
Roger Heath-Brown Werner Heisenberg Dennis Hejhal Sigurður Helgason Martin Hellman Nadia Heninger Monika Henzinger Gustav Herglotz Maurice Herlihy Dudley
List of people by Erdős number
List_of_people_by_Erdős_number
Book by Steven Levy
Encryption Standard (DES), RSA and the Clipper chip. Whitfield Diffie Martin Hellman David Kahn Ron Rivest Adi Shamir Leonard Adleman Phil Zimmermann Tom
Crypto_(book)
American financier of German-Jewish descent
Isaias Wolf Hellman (October 3, 1842 – April 9, 1920) was a Kingdom of Bavaria-born American banker and philanthropist, and a founding father of the University
Isaias_W._Hellman
Hehner – predicative programming, formal methods, quote notation, ALGOL Martin Hellman – encryption Gernot Heiser – operating system teaching, research, commercialising
List_of_computer_scientists
Cryptographic hardware
of DES, when proposed in 1975, was that the key size was too short. Martin Hellman and Whitfield Diffie of Stanford University estimated that a machine
EFF_DES_cracker
American computer scientist (1953–1995)
computing". Past recipients include Leonard Adleman, Whitfield Diffie, Martin Hellman, Ralph Merkle, Ron Rivest, and Adi Shamir, Abraham Lempel and Jacob
Paris_Kanellakis
codes as originally described. According to his friend and colleague Martin Hellman, Omura told him that once you understood dynamic programming, the optimality
Jim_K._Omura
Preservation and study of computer history
Fox Gideon Gartner Bruce Gilchrist George Glaser Martin A. Goetz Gene H. Golub Carl Hammer Martin Hellman Frances E. Holberton Cuthbert Hurd Anita K. Jones
IT_History_Society
Award in theoretical computer science
Year Winners Citation 1996 Leonard Adleman, Whitfield Diffie, Martin Hellman, Ralph Merkle, Ronald Rivest, and Adi Shamir For "the conception and first
Paris_Kanellakis_Award
Antonio González Andrew D. Gordon Steven Gribble Susanne Hambrusch Martin Hellman Nicholas Higham Tony Hoare Holger H. Hoos Ihab Ilyas Lizy John Joost-Pieter
List of fellows of the Association for Computing Machinery
List_of_fellows_of_the_Association_for_Computing_Machinery
American writer (1894–1961)
before his death. The Thin Man is dedicated to Hellman. Why he moved away from fiction is not certain; Hellman speculated in a posthumous collection of Hammett's
Dashiell_Hammett
Award
factorizations and discrete log records.” 2026 Whitfield Diffie and Martin Hellman “For the invention of public key cryptography.” 2026 David Basin, Cas
Levchin_Prize
1935 film by James Cruze
American comedy film directed by James Cruze and written by Sam Hellman, Francis Martin and Eddie Moran. The film stars Lee Tracy, Roscoe Karns, Gail Patrick
Two-Fisted
Man-in-the-middle attack • Marian Rejewski • MARS (cryptography) • Martin Hellman • MaruTukku • Massey–Omura cryptosystem • Matt Blaze • Matt Robshaw
Index of cryptography articles
Index_of_cryptography_articles
Swedish television and film actor
Carl Martin Gunnar Wallström Milkéwitz (born 7 July 1983) is a Swedish television and film actor. A successful actor in his home country, he is best known
Martin_Wallström
The computational Diffie–Hellman (CDH) assumption is a computational hardness assumption about the Diffie–Hellman problem. The CDH assumption involves
Computational Diffie–Hellman assumption
Computational_Diffie–Hellman_assumption
Technical award
1997: Tim Berners-Lee 1998: Jack Keil Wolf 1999: Whitfield Diffie 1999: Martin Hellman 1999: Ralph Charles Merkle 2000: Ronald L. Rivest 2000: Adi Shamir 2000:
IEEE Koji Kobayashi Computers and Communications Award
IEEE_Koji_Kobayashi_Computers_and_Communications_Award
memory, enabling it to be copied out of memory. Apple Computer consulted Martin Hellman and Ron Rivest cryptographers. The issue of software protection goes
Timeline_of_Steve_Jobs_media
enthusiastic hot-jazz fan like Martin Hellman, captain of the New York Sanitation Department's Garbage Scow #14. Hellman became a favorite and made frequent
The Chamber Music Society of Lower Basin Street
The_Chamber_Music_Society_of_Lower_Basin_Street
1964 film by Monte Hellman
starring Jack Nicholson, Fay Spain, Vic Diaz and Dewey Martin. The film was directed by Monte Hellman and filmed back to back with Back Door to Hell in the
Flight_to_Fury
Cryptographic attack
Tradeoff attacks on symmetric cryptosystems date back to 1980, when Martin Hellman suggested a time/memory tradeoff method to break block ciphers with
Time/memory/data tradeoff attack
Time/memory/data_tradeoff_attack
British comic book story
"Hellman of Hammer Force" is a British comic strip published by IPC Magazines in the boys' comic anthology titles Action and later Battle between 14 February
Hellman_of_Hammer_Force
American actor (1928–1982)
most notably in collaboration with directors Sam Peckinpah and Monte Hellman. He had starring roles in Peckinpah's The Wild Bunch (1969) and Bring Me
Warren_Oates
Ruxandra Sireteanu (died 2008), Romanian neuroscientist. October 2 – Martin Hellman, American cryptologist. Undated – Lyn Evans, Welsh physicist. March
1945_in_science
asymmetric-key cryptosystem is published by Whitfield Diffie and Martin Hellman who disclose the Diffie–Hellman key exchange method of public-key agreement for public-key
1976_in_science
– an early champion of information security in the U.S. Government Martin Hellman – professor emeritus at Stanford University Ralph Merkle – developed
National Cyber Security Hall of Fame
National_Cyber_Security_Hall_of_Fame
American banker
Herman W. Hellman (September 25, 1843 – October 19, 1906) was an American businessman, banker, and real estate investor. Herman W. Hellman was born on
Herman_W._Hellman
Swedish singer (born 1965)
Jakob Hellman (born 20 October 1965) is a Swedish pop singer. His debut album, ...och stora havet, released in 1989, was his only release for 32 years
Jakob_Hellman
1963 film by George Roy Hill
film is based on a Tony Award-winning play of the same name by Lillian Hellman. The screenplay adaptation is by James Poe, and the original music score
Toys_in_the_Attic_(1963_film)
American mathematics and science writer (1914–2010)
superellipse and the Soma cube of Piet Hein; the trapdoor functions of Diffie, Hellman, and Merkle; the flexagons of Stone, Tuckerman, Feynman, and Tukey; the
Martin_Gardner
New Zealand radio DJ and musician
Up magazine as well as Australia's Tattoos DownUnder. Martin started his own record label "HELLMAN RECORDS" to promote New Zealand music. His first CD release
Paul_Martin_(radio_presenter)
1941 American play by Lillian Hellman
Watch on the Rhine is a 1941 American play by Lillian Hellman. In an essay on World War II, a contributor to The Companion to Southern Literature (2002)
Watch_on_the_Rhine_(play)
American cartoonist
Danny Hellman (born August 2, 1964) is an American freelance illustrator and cartoonist. Since 1989, his illustrations have appeared in publications including
Danny_Hellman
1941 film by William Wyler
by William Wyler. The screenplay by Lillian Hellman is based on her 1939 play The Little Foxes. Hellman's ex-husband Arthur Kober, Dorothy Parker and
The_Little_Foxes_(film)
Obed Crosby Haycock professor and researcher at the University of Utah Martin Hellman New York Epsilon, 1966 professor at Stanford University who co-developed
List_of_Tau_Beta_Pi_members
Operetta with music by Leonard Bernstein
Other contributors to the text were John Latouche, Dorothy Parker, Lillian Hellman, Stephen Sondheim, John Mauceri, John Wells, and Bernstein himself. Maurice
Candide_(operetta)
American author, editor, and art collector (1878-1958)
George Sidney Hellman (November 14, 1878 – July 16, 1958) was an American author, editor, and art collector. George S. Hellman was born in New York City
George_S._Hellman
American cryptographer (1914–2007)
as being too easy to crack. In this meeting with Whitfield Diffie, Martin Hellman, and Paul Baran, he tried to convince the critics that "56 [bits] is
Arthur_Levenson
American actor and screenwriter (1904–1979)
Berkeley said attended a meeting of party members at his house was Lillian Hellman. Berkeley has been called HUAC's "number-one friendly witness" because
Martin_Berkeley
Play by Lillian Hellman
The Little Foxes is a 1939 play by Lillian Hellman, considered a classic of 20th century drama. Its title comes from Chapter 2, Verse 15, of the Song
The_Little_Foxes
American intellectual historian (born 1944)
cultural criticism, visual culture, and historiography. He is the Sidney Hellman Ehrman Professor of History Emeritus at UC Berkeley, where he taught for
Martin_Jay
1978 film by Hal Ashby
families. The project dragged on for years until Gilbert and producer Jerome Hellman took it. The screenplay was reshaped significantly by the circle of talent
Coming_Home_(1978_film)
Creator of Southern Comfort liqueur
where he was employed by A.M. Hellman & Company Liquor Wholesalers. Helman & Co. was a partnership owned by Abraham Hellman and Myer Harris, located at
Martin_Wilkes_Heron
2014". S&P Dow Jones Indices. August 11, 2014. Retrieved May 10, 2026. "Martin Marietta Materials Set to Join the S&P 500; United States Steel Corp. Set
List_of_S&P_400_companies
American novelist and political activist (1912–1989)
her colleague Hannah Arendt and her storied feud with playwright Lillian Hellman. McCarthy was the winner of the Horizon Prize in 1949 and was awarded two
Mary McCarthy (American writer)
Mary_McCarthy_(American_writer)
Broadway theater in Manhattan, New York
the Beck hosted the Lillian Hellman play The Little Foxes, featuring Elizabeth Taylor, and the Robert Brush and Martin Charnin musical The First. This
Al_Hirschfeld_Theatre
1759 satirical novella by Voltaire
performed. The operetta Candide was originally conceived by playwright Lillian Hellman, as a play with incidental music. Leonard Bernstein, the American composer
Candide
travel, tourism, insurance
MARTIN HELLMAN
MARTIN HELLMAN
Male
English
Variant spelling of English Mervin, MARVIN means "marrow-eminent."Â
Surname or Lastname
Portuguese
Portuguese : patronymic from the personal name Martim, vernacular form of Latin Martinus (see Martin).English and Dutch : patronymic from the personal name Martin.
Girl/Female
American, Australian, Danish, Dutch, French, German, Latin, Netherlands, Swiss
Dedicated to Mars; Roman God of War; Servant of Mars; Female Version of Martin; Of Mars; Warlike
Boy/Male
Spanish American English Latin
Warring.
Surname or Lastname
English
English : variant spelling of Garton.
Male
French
French form of Roman Latin Marinus, MARIN means "of the sea."
Male
Italian
Italian form of Latin Martinus, MARTINO means "of/like Mars."
Male
German
Low German form of Latin Martinus, MARTEN means "of/like Mars."
Girl/Female
Arabic, Australian, Basque, French, Latin
Lady; Feminine of Martin; Warlike
Surname or Lastname
English, Scottish, Irish, French, Dutch, German, Czech, Slovak, Spanish (MartÃn), Italian (Venice), etc.
English, Scottish, Irish, French, Dutch, German, Czech, Slovak, Spanish (MartÃn), Italian (Venice), etc. : from a personal name (Latin Martinus, a derivative of Mars, genitive Martis, the Roman god of fertility and war, whose name may derive ultimately from a root mar ‘gleam’). This was borne by a famous 4th-century saint, Martin of Tours, and consequently became extremely popular throughout Europe in the Middle Ages. As a North American surname, this form has absorbed many cognates from other European forms.English : habitational name from any of several places so called, principally in Hampshire, Lincolnshire, and Worcestershire, named in Old English as ‘settlement by a lake’ (from mere or mær ‘pool’, ‘lake’ + tÅ«n ‘settlement’) or as ‘settlement by a boundary’ (from (ge)mære ‘boundary’ + tÅ«n ‘settlement’). The place name has been charged from Marton under the influence of the personal name Martin.
Boy/Male
American, Anglo, Australian, British, English, German, Swedish, Teutonic
Lover of the Sea; Form of Marvin; Sea Lover; Eminent; Great; Marrow
Surname or Lastname
English and Dutch
English and Dutch : variant spelling of Martin 1.Ukrainian : from the personal name Martyn (see Martin).
Female
English
Feminine form of Latin Martinus, MARTINA means "of/like Mars."Â
Male
Polish
Polish form of Roman Latin Martinus, MARCIN means "of/like Mars."
Male
Polish
Polish form of Latin Martinus, MARTYN means "of/like Mars."
Female
French
French feminine form of Latin Martinus, MARTINE means "of/like Mars."Â
Male
English
Pet form of English Martin, MARTIE means "of/like Mars."
Male
English
 English form of Roman Latin Martinus, MARTIN means "of/like Mars." Compare with another form of Martin.
Surname or Lastname
English
English : variant spelling of Barton.
Male
French
 French form of Roman Latin Martinus, MARTIN means "of/like Mars." Compare with another form of Martin.
MARTIN HELLMAN
MARTIN HELLMAN
MARTIN HELLMAN
MARTIN HELLMAN
MARTIN HELLMAN
MARTIN HELLMAN
MARTIN HELLMAN
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