Recreation of the Polish Cyclometer and Its Role in the Breaking of Enigma
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To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology?
Portland State University PDXScholar Young Historians Conference Young Historians Conference 2016 Apr 28th, 9:00 AM - 10:15 AM To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology? Hayley A. LeBlanc Sunset High School Follow this and additional works at: https://pdxscholar.library.pdx.edu/younghistorians Part of the European History Commons, and the History of Science, Technology, and Medicine Commons Let us know how access to this document benefits ou.y LeBlanc, Hayley A., "To What Extent Did British Advancements in Cryptanalysis During World War II Influence the Development of Computer Technology?" (2016). Young Historians Conference. 1. https://pdxscholar.library.pdx.edu/younghistorians/2016/oralpres/1 This Event is brought to you for free and open access. It has been accepted for inclusion in Young Historians Conference by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. To what extent did British advancements in cryptanalysis during World War 2 influence the development of computer technology? Hayley LeBlanc 1936 words 1 Table of Contents Section A: Plan of Investigation…………………………………………………………………..3 Section B: Summary of Evidence………………………………………………………………....4 Section C: Evaluation of Sources…………………………………………………………………6 Section D: Analysis………………………………………………………………………………..7 Section E: Conclusion……………………………………………………………………………10 Section F: List of Sources………………………………………………………………………..11 Appendix A: Explanation of the Enigma Machine……………………………………….……...13 Appendix B: Glossary of Cryptology Terms.…………………………………………………....16 2 Section A: Plan of Investigation This investigation will focus on the advancements made in the field of computing by British codebreakers working on German ciphers during World War 2 (19391945). -
Breaking the Enigma Cipher
Marian Rejewski An Application of the Theory of Permutations in Breaking the Enigma Cipher Applicaciones Mathematicae. 16, No. 4, Warsaw 1980. Received on 13.5.1977 Introduction. Cryptology, i.e., the science on ciphers, has applied since the very beginning some mathematical methods, mainly the elements of probability theory and statistics. Mechanical and electromechanical ciphering devices, introduced to practice in the twenties of our century, broadened considerably the field of applications of mathematics in cryptology. This is particularly true for the theory of permutations, known since over a hundred years(1), called formerly the theory of substitutions. Its application by Polish cryptologists enabled, in turn of years 1932–33, to break the German Enigma cipher, which subsequently exerted a considerable influence on the course of the 1939–1945 war operation upon the European and African as well as the Far East war theatres (see [1]–[4]). The present paper is intended to show, necessarily in great brevity and simplification, some aspects of the Enigma cipher breaking, those in particular which used the theory of permutations. This paper, being not a systematic outline of the process of breaking the Enigma cipher, presents however its important part. It should be mentioned that the present paper is the first publication on the mathematical background of the Enigma cipher breaking. There exist, however, several reports related to this topic by the same author: one – written in 1942 – can be found in the General Wladyslaw Sikorski Historical Institute in London, and the other – written in 1967 – is deposited in the Military Historical Institute in Warsaw. -
41760779079990.Pdf
.CONFIS~Ti;~691 BBS'l'RIOHJB· THE DISTBIBUTION OF THIS SPECIAL TEXT WILL BE RESTRICTED TO REGULARLY ENROLLED EXTENSION COURSE STUDENTS, 'l'O MILITARY PERSONNEL, AND TO OTHER PERSONS COMING WITHIN THE MEANING OF THE PHRASE "FOR OFFICIAL USE ONLY/, ·. ARMY EXTENSION COURSES ~,· ·~~cY-l~~ I!LA)f'~'~ ~ \_ -·----------;-- --·· SPECIAL TEXT No. 166 ADVANCED MILITARY CRYPTOGRAPHY Szcoxn (19'3) EDmox PREPARED UNDER THE DIRECTION OF THE CHIEF SIGNAL OFFICER FOR USE WITH 'I1fE ARMY EXTENSION COURSES .',; ,_ • RSS'fRI<ffRB document contains information affecting the nat1 defense of the United States within the meaning of die · nage Act (U.S. C. -Y,. ~:>· 50: 31, 32). The transmission o · ocument · · or the revelation of its contents in any nl:an any unauthorized person is prohibited. + UNITED STATES GOVERNMENT PRINTING OFFICE ~ (o ~ ~ WASHINGTON : 19'3 . ,. 7.~0NFIDENTIAL Peclassified and approved for release by NSA on 01-14-2014 pursuant to E.O. 1352§ REF ID:A64691 ,·J/ 30 April 1959 Th.is document is re-graded "eEm'!BBrff " of DOD Directive 5200.l dated 8 ~ UP and by autharity of the Directar '2t1:.!i Security ~ncy. ' Paul~w~ S. Willard Colonel, AOC Adjutant Ge.nera.J. • ~· WAR DEPARTMENT, • WAsmNGTON, Februa1"JI S, 1948. Tbis revision of Special Text No. 166, Advanced Milita.ry Cryptog raphy (1935), for use with the Anny Extension Courses, is published for the information and guidance of all concerned. BY ORDEB OF THE SlilCBlilTAB.Y OF wAB! :,. G. o. M.ARSHAT,T., General, Ohiejoj8f4. OFFICIAL! JAMES A. ULIO, Major Gemral, 7?i.e Adjut,ant Geneml,. (XI) • SPECIAL TEXT NO. -
THE-POLISH-TRACE-Ebook.Pdf
8 THE POLISH TRACE COMPOSED FROM COMMONLY AVAILABLE SOURCES BY LECH POLKOWSKI FOR IJCRS2017 FOREWORD It is a desire of many participants of conferences to learn as much as possible about the history and culture of he visited country and place and organizers try to satisfy this desire by providing excursions into attractive places and sites. IJCRS2017 also tries to take participants to historic sites of Warmia and Mazury and to show elements of local culture. As an innovation, we propose a booklet showing some achievements of Polish scientists and cryptographers, no doubt many of them are known universally, but some probably not. What bounds all personages described here is that they all suffered due to world wars, th efirst and the second. These wars ruined their homes, made them refugees and exiles, destroyed their archives and libraries, they lost many colleagues, friends and students but were lucky enough to save lives and in some cases to begin the career overseas. We begin with the person of Jan Czochralski, world famous metallurgist, discoverer of the technique of producing metal monocrystals `the Czochralski methode’ and inventor of duraluminum and the `bahnalloy’ who started his career and obtained its heights in Germany, later returned to Poland, became a professor at the Warsaw Polytechnical, played an important role in cultural life of Warsaw, lived in Warsaw through the second world war and the Warsaw Uprising of August-September 1944 and after the war was accused of cooperating ith occupying German forces and though judged innocent was literally erased from the public life and any information about him obliterated. -
Historical Ciphers Part 2
ECE 646 - Lecture 7 Required Reading • W. Stallings, Cryptography and Network Security, Historical Ciphers Chapter 3, Classical Encryption Techniques Part 2 • A. Menezes et al., Handbook of Applied Cryptography, Chapter 7.3 Classical ciphers and historical development 1 2 14 Substitution Ciphers (2) 12 Character frequency 2. Polyalphabetic substitution cipher 10 in a long English 8 plaintext M = m1 m2 … md 6 m m … m d+1 d+2 2d 4 m2d+1 m2d+2 … m3d 2 ….. 0 a b c d e f g h i j k l m n o p q r s t u v w x y z C = f1(m1) f2(m2) … fd(md) Character frequency 14 in the corresponding f1(md+1) f2(md+2) … fd(m2d ) 12 ciphertext f1(m2d+1 ) f2( m2d+2) … fd(m3d ) 10 for a polyalphabetic ….. 8 substitution cipher d is a period of the cipher 6 1 4 × 100% » 3.8 % Key = d, f1, f2, …, fd 26 2 d 26 d Number of keys for a given period d = (26!) » (4 × 10 ) 0 a b c d e f g h i j k l m n o p q r s t u v w x y z 3 4 1 Polyalphabetic substitution ciphers Vigenère Cipher - Example Simplifications (1) Plaintext: TO BE OR NOT TO BE A. Vigenère cipher: polyalphabetic shift cipher Key: NSA Invented in 1568 Encryption: T O B E O R ci = fi mod d(mi) = mi + ki mod d mod 26 N O T T O B -1 mi = f i mod d(ci) = ci - ki mod d mod 26 E Key = k0, k1, … , kd-1 Number of keys for a given period d = (26)d 5 6 Vigenère Square Vigenère Square plaintext: a b c d e f g h i j k l m n o p q r s t u v w x y z plaintext: a b c d e f g h i j k l m n o p q r s t u v w x y z 3 a b c d e f g h i j k l m n o p q r s t u v w x y z a b c d e f g h i j k l m n o p q r s t u v w x y z b c d e -
Polska Myśl Techniczna W Ii Wojnie Światowej
CENTRALNA BIBLIOTEKA WOJSKOWA IM. MARSZAŁKA JÓZEFA PIŁSUDSKIEGO POLSKA MYŚL TECHNICZNA W II WOJNIE ŚWIATOWEJ W 70. ROCZNICĘ ZAKOŃCZENIA DZIAŁAŃ WOJENNYCH W EUROPIE MATERIAŁY POKONFERENCYJNE poD REDAkcJą NAUkoWą DR. JANA TARCZYńSkiEGO WARSZAWA 2015 Konferencja naukowa Polska myśl techniczna w II wojnie światowej. W 70. rocznicę zakończenia działań wojennych w Europie Komitet naukowy: inż. Krzysztof Barbarski – Prezes Instytutu Polskiego i Muzeum im. gen. Sikorskiego w Londynie dr inż. Leszek Bogdan – Dyrektor Wojskowego Instytutu Techniki Inżynieryjnej im. profesora Józefa Kosackiego mgr inż. Piotr Dudek – Prezes Stowarzyszenia Techników Polskich w Wielkiej Brytanii gen. dyw. prof. dr hab. inż. Zygmunt Mierczyk – Rektor-Komendant Wojskowej Akademii Technicznej im. Jarosława Dąbrowskiego płk mgr inż. Marek Malawski – Szef Inspektoratu Implementacji Innowacyjnych Technologii Obronnych Ministerstwa Obrony Narodowej mgr inż. Ewa Mańkiewicz-Cudny – Prezes Federacji Stowarzyszeń Naukowo-Technicznych – Naczelnej Organizacji Technicznej prof. dr hab. Bolesław Orłowski – Honorowy Członek – założyciel Polskiego Towarzystwa Historii Techniki – Instytut Historii Nauki Polskiej Akademii Nauk kmdr prof. dr hab. Tomasz Szubrycht – Rektor-Komendant Akademii Marynarki Wojennej im. Bohaterów Westerplatte dr Jan Tarczyński – Dyrektor Centralnej Biblioteki Wojskowej im. Marszałka Józefa Piłsudskiego prof. dr hab. Leszek Zasztowt – Dyrektor Instytutu Historii Nauki Polskiej Akademii Nauk dr Czesław Andrzej Żak – Dyrektor Centralnego Archiwum Wojskowego im. -
This Story Begins Sometime in the Early 1930S, When the Poles And
XYZ Prof. Włodzimierz Zawadzki Institute of Physics, Polish Academy of Sciences [email protected] Mathematicians are important, and not just in wartime. his story begins sometime in the early 1930s, developing programmable computers. Knox informed when the Poles and the French first took an Turing about the progress made by the Poles, and Tur- T interest in breaking the code generated by the ing built a sophisticated machine of his own that was Enigma encryption machines. The Enigma was a Ger- capable of cracking the increasingly complex Wehr- man-made electro-mechanical device that looked a bit macht codes. In a nod to the Polish pioneers, Turing like a typewriter with little lights, and prior to WWII too called his device “the bomb.” Despite the urgings they were available commercially. The decision to of British intelligence, Bertrand was reluctant to get crack the Enigma code proved far-sighted when the the Polish team out of Nazi-occupied France and into machines underwent a complex and classified rede- Bletchley Park. The team ended up in southern France sign for military purposes in the run-up to the war. and, at one point, in North Africa. Despite their con- Codebreaking challenges had earlier been handled tinuing insights, the Polish team’s direct contribution by linguists, but the Enigma’s rotor-encrypted codes to the breaking of the Enigma code diminished. required codebreakers with a mathematical back- When the United States joined the war, one of the ground. The Polish Cipher Bureau, an intelligence out- most difficult aspects of Enigma decryption focused fit located near Warsaw, set up a task force consisting on the communications of the German U-boat fleet, of Marian Rejewski, Henryk Zygalski and Jerzy Róży- which harassed American supply convoys crossing cki. -
Cryptographyorhioohulmuoft CRYPTOGRAPHY OR the HISTORY, PRINCIPLES, and PRACTICE of CIPHER-WRITING
Digitized by the Internet Archive in 2007 with funding from IVIicrosoft Corporation http://www.archive.org/details/cryptographyorhiOOhulmuoft CRYPTOGRAPHY OR THE HISTORY, PRINCIPLES, AND PRACTICE OF CIPHER-WRITING ^ w >TOGRA OR The History, Principles, and Practice OF CIPHER-WRITING e<^ BY Fl^EDWARD HULME, F.L.S., F.S.A U\ AUTHOR OF "familiar WILD FLOWERS," " MYTHLAND," " NATURAL HISTORY LORE AND LEGEND," "the birth and development OF ORNAMENT," " WAYSIDK SKETCHES," ETC Heres noiv mystery and hieroglyphic Ben Jonson— The Alchemysi. LONDON WARWICK HOUSE, SALISBURY SQUARE, E.C NEW YORK AND MELBOURNE — CONTENTS CHAPTER I PAGE Meaning of cryptography—Objections to its study—Its legitimate use and value—Historic examples of its employment—Deliglit in the mysterious—Many other ways of conveying secret information—Symbolism of action—The spoken word imprisoned and dispatched —A matter not necessarily secret because one cannot understand it — Egyptian hieroglypliics — Chinese characters—Indian mutiny Greek—Ancient Biblical cryptogram — Sheshach of Jeremiah — Sir Henry Eawlinson thereon—Statements for and against Julius Caesar's secret code—The waxed tablet of Demaratus—Difference between hidden and secret writing—The shaven head a writing tablet—Charle- magne and Alfred the Great as cryptographic experts —Mediaeval authorities—Trithemius the Benedictine " — " Steganographia —Dabbling in the black art Dr. Dee—Batista Porta's book on "Natural Majick" —Invisible writing—Chemical methods by vitriol, alum, etc. —Writing on glass or crystal—Papal In- quisition—Disappearing writing—Messages wrapped round rollers—Two methods—A slave's back the writing surface—Chemical methods of no great value ordinarily—Disadvantages of use— Action of light and heat—Chloride of cobalt, sulphate of copper, etc. -
Historical Ciphers • A
ECE 646 - Lecture 6 Required Reading • W. Stallings, Cryptography and Network Security, Chapter 2, Classical Encryption Techniques Historical Ciphers • A. Menezes et al., Handbook of Applied Cryptography, Chapter 7.3 Classical ciphers and historical development Why (not) to study historical ciphers? Secret Writing AGAINST FOR Steganography Cryptography (hidden messages) (encrypted messages) Not similar to Basic components became modern ciphers a part of modern ciphers Under special circumstances modern ciphers can be Substitution Transposition Long abandoned Ciphers reduced to historical ciphers Transformations (change the order Influence on world events of letters) Codes Substitution The only ciphers you Ciphers can break! (replace words) (replace letters) Selected world events affected by cryptology Mary, Queen of Scots 1586 - trial of Mary Queen of Scots - substitution cipher • Scottish Queen, a cousin of Elisabeth I of England • Forced to flee Scotland by uprising against 1917 - Zimmermann telegram, America enters World War I her and her husband • Treated as a candidate to the throne of England by many British Catholics unhappy about 1939-1945 Battle of England, Battle of Atlantic, D-day - a reign of Elisabeth I, a Protestant ENIGMA machine cipher • Imprisoned by Elisabeth for 19 years • Involved in several plots to assassinate Elisabeth 1944 – world’s first computer, Colossus - • Put on trial for treason by a court of about German Lorenz machine cipher 40 noblemen, including Catholics, after being implicated in the Babington Plot by her own 1950s – operation Venona – breaking ciphers of soviet spies letters sent from prison to her co-conspirators stealing secrets of the U.S. atomic bomb in the encrypted form – one-time pad 1 Mary, Queen of Scots – cont. -
Pioneers in U.S. Cryptology Ii
PIONEERS IN U.S. CRYPTOLOGY II This brochure was produced by the Center for Cryptologic History Herbert 0. Yardley 2 Herbert 0. Yardley Herbert 0 . Yardley was born in 1889 in Worthington, Indiana. After working as a railroad telegrapher and spending a year taking an English course at the University of Chicago, he became a code clerk for the Department of State. In June 1917, Yardley received a commission in the Signal Officers Reserve Corps; in July Colonel Ralph Van Deman appointed him chief of the new cryptanalytic unit, MI-8, in the Military Intelligence division. MI-8, or the Cipher Bureau, consisted of Yardley and two clerks. At MI-8's peak in November 1918, Yardley had 18 officers, 24 civilians, and 109 typists. The section had expanded to include secret inks, code and cipher compilation, communications, and shorthand. This was the first formally organized cryptanalytic unit in the history of the U.S. government. When World War I ended, the Army was considering disbanding MI-8. Yardley presented a persuasive argument for retaining it for peacetime use. His plan called for the permanent retention of a code and cipher organization funded jointly by the State and War Departments. He demonstrated that in the past eighteen months MI-8 had read almost 11,000 messages in 579 cryptographic systems. This was in addition to everything that had been examined in connection with postal censorship. On 17 May Acting Secretary of State Frank L. Polk approved the plan, and two days later the Army Chief of Staff, General Peyton C. -
Polish Mathematicians Finding Patterns in Enigma Messages
Fall 2006 Chris Christensen MAT/CSC 483 Machine Ciphers Polyalphabetic ciphers are good ways to destroy the usefulness of frequency analysis. Implementation can be a problem, however. The key to a polyalphabetic cipher specifies the order of the ciphers that will be used during encryption. Ideally there would be as many ciphers as there are letters in the plaintext message and the ordering of the ciphers would be random – an one-time pad. More commonly, some rotation among a small number of ciphers is prescribed. But, rotating among a small number of ciphers leads to a period, which a cryptanalyst can exploit. Rotating among a “large” number of ciphers might work, but that is hard to do by hand – there is a high probability of encryption errors. Maybe, a machine. During World War II, all the Allied and Axis countries used machine ciphers. The United States had SIGABA, Britain had TypeX, Japan had “Purple,” and Germany (and Italy) had Enigma. SIGABA http://en.wikipedia.org/wiki/SIGABA 1 A TypeX machine at Bletchley Park. 2 From the 1920s until the 1970s, cryptology was dominated by machine ciphers. What the machine ciphers typically did was provide a mechanical way to rotate among a large number of ciphers. The rotation was not random, but the large number of ciphers that were available could prevent depth from occurring within messages and (if the machines were used properly) among messages. We will examine Enigma, which was broken by Polish mathematicians in the 1930s and by the British during World War II. The Japanese Purple machine, which was used to transmit diplomatic messages, was broken by William Friedman’s cryptanalysts. -
Enigma Cryptanalysis - Beginnings
Enigma Cryptanalysis - Beginnings Gaurish Korpal∗ [email protected] July 15, 2015 Abstract Any message may be hidden in two basic ways. The methods of steganography conceal the very existence of the message, for example invisible inks and microdots. The methods of cryptography, on the other hand, do not conceal the presence of a secret message but render it unintelligible as ciphertext, to outsiders by various transformations of the plaintext. Breaking ciphers require ingenuity, creativity and a little math. In this article our focus will be on breaking Enigma ciphers. The skill involved in breaking ciphers is called cryptanalysis. Keywords. Enigma, cryptanalysis, cypher, Caesar, Vigen`ere,Rejewski, Zygalski, Bomba, Bombe 1 Cipher not Code A code is a mapping from some meaningful unit (word, sentence, phrase) into something else (usually a shorter group of symbols). A code requires a codebook, it is simply a list of these mappings. For example we could make up a code where the word Apple is written as 67, historical example of this is \Zimmermann Telegram Code" for more details refer [7]. Ciphers do not involve meaning. Instead they are mechanical operations (known as algorithms) which are performed on the individual or small chunks of letters. A code is stored as a mapping in a codebook, while ciphers transform individual symbols according to an algorithm. It was definitively stated in 1883 by the Dutch linguist Auguste Kerckhoffs von Nieuwenhof in his book La Cryptographie militaire: Kerckhoffs' Principle: The security of a cryptosystem must not depend on keeping secret the crypto-algorithm. The security depends only on keeping secret the key.