OOIR: Observatory of International Research

Papers

(The median citation count of Cryptologia is 0. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2020-03-01 to 2024-03-01.)

Article	Citations
Quasigroups and their applications in cryptography	16
Analyzing student understanding of cryptography using the SOLO taxonomy	5
Enigma: the spoils of Gustave Bertrand, or “par où tout a commencé”	4
Cryptanalysis of two similar chaos-based image encryption schemes	4
Methods for encryption in early 19th-century Ottoman diplomatic correspondence	4
A review of the tropical approach in cryptography	4
Cryptanalysis of RSA with small difference of primes and two decryption exponents: Jochemsz and May approach	3
Complete examples of encryption systems broken by Elizebeth Smith Friedman: 1923–1934	2
A novel Collatz conjecture-based digital image watermarking method	2
Efficient data encryption technique using quaternions for wireless sensor network	2
Shadow IT in higher education: survey and case study for cybersecurity	2
On the failure of the smart approach of the GPT cryptosystem	2
A nonlinear invariant attack on T-310 with the original Boolean function	2
Arithmetic autocorrelation of binary m-sequences	2
Benford’s law in the Beale ciphers	2
Quasigroups and substitution permutation networks: a failed experiment	2
Construction of cryptographically strong S-boxes from ternary quasigroups of order 4	2
Construction of a polynomial invariant annihilation attack of degree 7 for T-310	2
Deciphering papal ciphers from the 16th to the 18th Century	2
Enigma, the XYZ period (1939–1940)	2
Review of The Rose Code by Kate Quinn	1
Elizebeth Smith Friedman’s recovery of the wiring of two rotors from an enigma D machine	1
Breaking the Silk Dress cryptogram	1
Sidon sets and statistics of the ElGamal function	1
Solving the Olum 1 Cipher	1

Review of The Nazi Spy Ring in America by Rhodri Jeffreys-Jones	1
Cryptographic symmetric structures based on quasigroups	1
Review of The linguistics of the Voynich manuscript by Claire Bowern and Luke Lindemann	1
How we set new world records in breaking Playfair ciphertexts	1
The changes in Ottoman diplomatic cryptography and its methods during the 19th century (1811–1877)	1
Sources and methods for cryptologic history: the William and Elizebeth Smith Friedman collections	1
Elizebeth Smith Friedman and one example of a prohibition era encryption system	1
Resource guide for teaching post-quantum cryptography	1
A treatise on the Rilke cryptogram	1
The first Czechoslovak cipher machine	1
Genevieve Grotjan’s “great discovery”	1
A statistical cryptanalysis of the Beale ciphers	1
Cryptanalysis and improvement of a blind multi-document signcryption scheme	1
Phrase-verified voting: Verifiable low-tech remote boardroom voting	1
Analysis of rotation and shift based diffusion functions	1
Review of Codebreaker Girls: A Secret Life at Bletchley Park by Jan Slimming	1
Rudyard Kipling’s unsolved cryptogram	1
Applying hierarchical clustering to homophonic substitution ciphers using historical corpora	0
Can musical encryption be both? A survey of music-based ciphers	0
Sources and methods: uncovering the story of American Cryptology in World War I	0
The ciphers of the Republic of Venice an overview	0
Cracking SIGABA in less than 24 hours on a consumer PC	0
Review of Flight of the Fox by Gray Basnight	0
An improved cryptanalysis of multi-prime RSA with specific forms of decryption exponent	0
Review of The Bombe: The Machine that Defeated Enigma by Dermot Turing	0
Correction	0
Review of Crypto Wars—The Fight for Privacy in the Digital Age: A Political History of Digital Encryption	0
Review of The Puzzle Master by Danielle TrussoniTrussoni, Danielle. 2023. The Puzzle Master . New York, NY: Random House. https://www.rand	0
Expanded low-rank parity-check codes and their application to cryptography	0
The new golden age of decipherment	0
Review of Parker Hitt: The Father of American Military Cryptology by Betsy Rohaly Smoot	0
Review of the second edition of Craig Bauer’s “ Secret History: The Story of Cryptology, Second Edition ”Bauer, Craig P. Secret History: The Story of Cryp	0
FCSR connection integers: efficient generation, testing and counting	0
Review of The First Enigma Codebreaker: The Untold Story of Marian Rejewski Who Passed the Baton to Alan Turing Gawłowski, Robert. The First Enigma Codebr	0
Review of Reflections of Alan Turing: A Relative Story by Dermot Turing	0
Review of The Woman All Spies Fear by Amy Butler Greenfield and Code Breaker, Spy Hunter by Laurie Wallmark, Illustrated by Brooke Smart	0
Improvements on k-error linear complexity of q-ary sequences derived from Euler quotients	0
18th cryptologic history symposium	0
Modern cryptanalysis of the Truppenschlüssel	0
On latin squares, invariant differentials, random permutations and historical Enigma rotors	0
Analysis of a late 19th century french cipher created by Major Josse	0
Sources and methods for cryptologic history: NSA.gov - a tour through its history and resources	0
Review of 100 People You Never Knew Were at Bletchley Park by Sinclair McKay	0
Review of The U.S. Navy's On-the-Roof Gang, Volume Two, War in the Pacific by Matt Zullo	0
Eavesdropping on the Biafra-Lisbon link – breaking historical ciphers from the Biafran war	0
A study of public key cryptosystems based on quasigroups	0
Review of Bletchley Park and D-Day by David Kenyon	0
Cracking PURPLE: the identification of homologs in the cryptanalysis of the Angooki Taipu B cipher machine	0
Solving the Olum 2 cipher: a new approach to cryptanalysis of transposition ciphers	0
Review ofRongorongo:Inscribed Objects from Rapa Nui	0

Review of The Real Special Relationship by Michael SmithSmith, Michael. The Real Special Relationship: The True Story of How the British and US Secret Ser	0
Identifying concealed messages using authorship attribution	0
The undisclosed history of the Dutch governmental telex-message security 1945–1960	0
Review of The Enigma Affair by Charlie LovettLovett, Charlie. The Enigma Affair . Ashland, OR: Blackstone Publishing. 2022. 323 pages, Har	0
Review of The Codebreakers of Bletchley Park by Dermot Turing	0
The Voynich manuscript: discussion of text creation hypotheses	0
A French cipher from the late 19^th century	0
UDM: Private user discovery with minimal information disclosure	0
Review of Madame X: The Story of ‘003’, the U.S. Army Cryptologic Bombe in World War II by Michael Barbakoff	0
Sources and methods: Searching for cryptologic records in the findings of post-World War II allied technical surveys and commissions	0
The Japanese Green Machine	0
Leo Marks’ “mental one-time pad”: an experimental cipher for British special operations in World War II	0
Review of classical cryptology at play by Silvio Coccaro	0
Sources and methods for cryptologic history: researching individuals (and the biography boom)	0
The origin of military cryptanalysis in Czechoslovakia	0
Review of Codebreaking: A Practical Guide by Elonka Dunin and Klaus Schmeh	0
Review of Behind the Enigma by John Ferris	0
Review of Before Bletchley Park: The Codebreakers of the First World War by Paul Gannon	0
Review of Queen of Codes: The Secret Life of Emily Anderson, Britain’s Greatest Female Codebreaker by Jackie Uí ChionnaChionna, Jackie Uí. Queen of Codes:	0
In memoriam: Thomas Ralph Erskine CB (1933 – 2021)	0
NSA honors two Cryptologia board members	0
The Codebreakers war: David Kahn, Macmillan, the government, and the making of a cryptologic history masterpiece	0
Sources and methods: contingency and its role in researching records of cryptologic history - a discussion and some lessons to apply for future research	0
Review of One Day in August by David O’Keefe	0
Review of Breaking Teleprinter Ciphers at Bletchley Park by James A. Reeds, Whitfield Diffie, and J. V. Field	0
Why the French military cryptanalysis failed to break Enigma	0
Review of Radio War: The Secret Espionage War of the Radio Security Service 1938–1946 by David Abrutat	0
Bit inclusion test: an enhanced avalanche test for stream ciphers	0
Review of From the Ground Up by Betsy Rohaly SmootSmoot, Betsy Rohaly. 2023. From the Ground Up: American Cryptology during World War I .	0
Herbert O. Yardley revisited: what does the new evidence say?	0
Cryptologic History Symposium, May 8–10, 2024	0
Decentralized universally verifiable stake voting system with perfect privacy	0
Cryptanalysis and improvement of Q. Peng et al.’s PVSS scheme	0
Review of The Secret Life of an American Codebreaker: Codebreaker Girls by Jan SlimmingSlimming, Jan. The Secret Life of an American Codebreaker: Codebrea	0
Modifying twist algorithms for determining the key length of a Vigenère cipher	0
Review of A Course in Cryptography by Heiko Knospe	0
Review of No More Secrets: My Part in Codebreaking at Bletchley Park and the Pentagon by Betty Webb	0
Review of USN & USMC WW II Cryptologists’ Oral Histories; Voices from the past, Volumes 1 and 2 by U.S. Naval Cryptologic Veterans Association	0
Genetic algorithm attack on Enigma’s plugboard	0
Review of Eavesdropping on the Emperor: Interrogators and Codebreakers in Britain’s War with Japan by Peter Kornicki	0
Review of Geniuses at War: Bletchley Park, Colossus, and the Dawn of the Digital Age by David A. Price	0
Review of The Rohonc Code: Tracing a Historical Riddle by Benedek Láng	0
Deciphering Mary Stuart’s lost letters from 1578-1584	0
Review of The Bletchley Park Codebreakers in their own words by Joel Greenberg	0
Unicity distance of the Zodiac-340 cipher	0
Statistical tests suites analysis methods. Cryptographic recommendations	0
Dorabella unMASCed – the Dorabella Cipher is not an English or Latin Mono-Alphabetical Substitution Cipher	0
Cryptography in undergraduate education: perceptions of postgraduate students	0
Review of codebreaker by Marc McMenamin	0
An ultra-lightweight block cipher with string transformations	0
Review of Images of the National Archives Codebreakers by Stephen Twigge	0
Deciphering three diplomatic letters sent by Maximilian II in 1575	0
Deciphering the Voynich manuscript: propositions to unlock research	0
Ludlings: not all fun and games	0
Review of Operation Vengeance: The Astonishing Aerial Ambush That Changed World War II by Dan Hampton	0
Deciphering German diplomatic and naval attaché messages from 1900-1915	0
Review of The U.S. Navy's On-the-Roof Gang, Volume One, Prelude to War by Matt Zullo	0
Review of Backing Bletchley: The Codebreaking Outstations from Eastcote to GCHQ by Ronald Koorm	0
Keys with nomenclatures in the early modern Europe	0
Sources and methods series: considering other record groups in Nara holding cryptologic and cryptologic-related records	0
On security aspects of the ciphers T-310 and SKS with approved long-term keys	0
Review of code cracking for kids by Jean Daigneau	0
T.R. Hollcroft’s Problem	0
Review of The Enigma Bulletin edited by Zdzisław J. Kapera	0