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 2021-02-01 to 2025-02-01.)

Article	Citations
The ciphers of the Republic of Venice an overview	6
Review of Crypto Wars—The Fight for Privacy in the Digital Age: A Political History of Digital Encryption	4
Review of The Secret Life of an American Codebreaker: Codebreaker Girls by Jan SlimmingSlimming, Jan. The Secret Life of an American Codebreaker: Codebrea	4
Rudyard Kipling’s unsolved cryptogram	3
Fault-assisted side-channel analysis of HMAC-Streebog	3
The new golden age of decipherment	3
Review of The Rose Code by Kate Quinn	3
A treatise on the Rilke cryptogram	3
Shadow IT in higher education: survey and case study for cybersecurity	2
Review of Eavesdropping on the Emperor: Interrogators and Codebreakers in Britain’s War with Japan by Peter Kornicki	2
Review of The Enigma Affair by Charlie Lovett	2
Sources and methods: Searching for cryptologic records in the findings of post-World War II allied technical surveys and commissions	2
Review of No More Secrets: My Part in Codebreaking at Bletchley Park and the Pentagon by Betty WebbWebb, Betty. No More Secrets: My Part in codebreaking a	2
Resource guide for teaching post-quantum cryptography	1
Review of The Woman All Spies Fear by Amy Butler Greenfield and Code Breaker, Spy Hunter by Laurie Wallmark, Illustrated by Brooke Smart	1
Review of codebreaker by Marc McMenamin	1
Sources and methods for cryptologic history: researching individuals (and the biography boom)	1
Review of Codebreaking: A Practical Guide by Elonka Dunin and Klaus Schmeh	1
Review of The U.S. Navy's On-the-Roof Gang, Volume Two, War in the Pacific by Matt Zullo	1
Review of The Real Special Relationship by Michael Smith	1
Cryptanalysis of RSA with small difference of primes and two decryption exponents: Jochemsz and May approach	1
Review of The linguistics of the Voynich manuscript by Claire Bowern and Luke Lindemann	1
Statistical tests suites analysis methods. Cryptographic recommendations	1
Classifying World War II era ciphers with machine learning	1
FCSR connection integers: efficient generation, testing and counting	1

Modern cryptanalysis of the Truppenschlüssel	1
Review of Radio War: The Secret Espionage War of the Radio Security Service 1938–1946 by David Abrutat	1
Deciphering Mary Stuart’s lost letters from 1578-1584	1
The first Czechoslovak cipher machine	1
The Codebreakers war: David Kahn, Macmillan, the government, and the making of a cryptologic history masterpiece	1
An artificial neural network approach to finding the key length of the Vigenère cipher	1
Review of the expanded edition of Codebreaking: A Practical Guide by Elonka Dunin and Klaus SchmehDunin, Elonka and Klaus, Schmeh. Codebreaking: A Practic	1
Review of The Nazi Spy Ring in America by Rhodri Jeffreys-Jones	1
Review of Codebreaker Girls: A Secret Life at Bletchley Park by Jan Slimming	1
An improved cryptanalysis of multi-prime RSA with specific forms of decryption exponent	1
Review of Enigma Traitors by Dermot Turing	1
Covert 19th century political intrigues of Tenerife nobility revealed by cryptanalyzing an encrypted letter	0
The Immortal David Kahn	0
Review of The Rohonc Code: Tracing a Historical Riddle by Benedek Láng	0
Decentralized universally verifiable stake voting system with perfect privacy	0
Can musical encryption be both? A survey of music-based ciphers	0
A statistical cryptanalysis of the Beale ciphers	0
Review of The Bletchley Park Codebreakers in their own words by Joel Greenberg	0
Enigma, the XYZ period (1939–1940)	0
Review of the second edition of Craig Bauer’s “ Secret History: The Story of Cryptology, Second Edition ”	0
Analysis of a late 19th century french cipher created by Major Josse	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
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
Review of Images of the National Archives Codebreakers by Stephen Twigge	0
Review of The Forgotten Giant of Bletchley Park by Harold Liberty	0
Arithmetic autocorrelation of binary m-sequences	0
18th cryptologic history symposium	0
Review of The First Enigma Codebreaker: The Untold Story of Marian Rejewski Who Passed the Baton to Alan Turing	0
On security aspects of the ciphers T-310 and SKS with approved long-term keys	0
Solving the Olum 1 Cipher	0
Multidimensional zero-correlation linear cryptanalysis on uBlock and RAIN	0
Cracking PURPLE: the identification of homologs in the cryptanalysis of the Angooki Taipu B cipher machine	0
Cryptanalysis and improvement of Q. Peng et al.’s PVSS scheme	0
A multi-step key recovery attack on reduced round Salsa and ChaCha	0
Modifying twist algorithms for determining the key length of a Vigenère cipher	0
Analysis of rotation and shift based diffusion functions	0
Review of Behind the Enigma by John FerrisFerris, John. Behind the Enigma. The Authorized History of GCHQ, Britain’s Secret Cyber-Intelligence Agency	0
Multiple impossible differential cryptanalysis of reduced-round NBC	0
The Condenser PBJ cipher machine	0
Review of The Hidden History of Code-Breaking and 50 Codes That Changed the World , both by Sinclair McKay	0
Dorabella unMASCed – the Dorabella Cipher is not an English or Latin Mono-Alphabetical Substitution Cipher	0
Multi-party key exchange scheme based on supertropical semiring	0
Meet-in-the-middle attacks on reduced round TweAES and NBC	0
Correction	0
Review of Madame X: The Story of ‘003’, the U.S. Army Cryptologic Bombe in World War II by Michael Barbakoff	0
The origin of military cryptanalysis in Czechoslovakia	0
Keys with nomenclatures in the early modern Europe	0
Review of Backing Bletchley: The Codebreaking Outstations from Eastcote to GCHQ by Ronald Koorm	0
Review of One Day in August by David O’Keefe	0
Elizebeth Smith Friedman and one example of a prohibition era encryption system	0

The Japanese Green Machine	0
NSA honors two Cryptologia board members	0
Side-channel attack–resistant PRESENT cipher by versatile key scheduling and compact S-box utilizing optimized three-phase logic design	0
Complete examples of encryption systems broken by Elizebeth Smith Friedman: 1923–1934	0
Review of Before Bletchley Park: The Codebreakers of the First World War by Paul Gannon	0
Deciphering the Voynich manuscript: propositions to unlock research	0
Cryptologic History Symposium, May 8–10, 2024	0
Evaluating GPT-4’s proficiency in addressing cryptography examinations	0
How we set new world records in breaking Playfair ciphertexts	0
Bit inclusion test: an enhanced avalanche test for stream ciphers	0
The Voynich Manuscript was written in a single, natural language	0
Elizebeth Smith Friedman’s recovery of the wiring of two rotors from an enigma D machine	0
Breaking the Silk Dress cryptogram	0
Cryptographic symmetric structures based on quasigroups	0
On latin squares, invariant differentials, random permutations and historical Enigma rotors	0
The changes in Ottoman diplomatic cryptography and its methods during the 19th century (1811–1877)	0
Unicity distance of the Zodiac-340 cipher	0
Square impossible differential attack and security of AES in known plaintext scenario	0
Review of Queen of Codes: The Secret Life of Emily Anderson, Britain’s Greatest Female Codebreaker by Jackie Uí Chionna	0
Methods for encryption in early 19th-century Ottoman diplomatic correspondence	0
The Voynich manuscript: discussion of text creation hypotheses	0
The “Topaze stick fragment”—a newly discoveredrongorongo-inscribed artifact collected during the Rapa Nui (Easter Island) visit of HMSTopazein 1868	0
The undisclosed history of the Dutch governmental telex-message security 1945–1960	0
T.R. Hollcroft’s Problem	0
A study of public key cryptosystems based on quasigroups	0
Construction of cryptographically strong S-boxes from ternary quasigroups of order 4	0
Review of 100 People You Never Knew Were at Bletchley Park by Sinclair McKayMcKay, Sinclair. 100 People You Never Knew Were at Bletchley Park	0
Solving the Olum 2 cipher: a new approach to cryptanalysis of transposition ciphers	0
Review of The Puzzle Master by Danielle Trussoni	0
Why the French military cryptanalysis failed to break Enigma	0
Expanded low-rank parity-check codes and their application to cryptography	0
Review of Geniuses at War: Bletchley Park, Colossus, and the Dawn of the Digital Age by David A. Price	0
Phrase-verified voting: Verifiable low-tech remote boardroom voting	0
Review of Arctic Convoys by David KenyonKenyon, David. Arctic Convoys: Bletchley Park and the War for the Seas . New Haven and London: Yal	0
Applying hierarchical clustering to homophonic substitution ciphers using historical corpora	0
Review of Reflections of Alan Turing: A Relative Story by Dermot Turing	0
In memoriam: Thomas Ralph Erskine CB (1933 – 2021)	0
Review of The Bombe: The Machine that Defeated Enigma by Dermot Turing	0
A review of the tropical approach in cryptography	0
Deciphering an unjustly unresolved script: bl add MS 73525 folio 7	0
Cracking SIGABA in less than 24 hours on a consumer PC	0
Review of Rongorongo : Inscribed Objects from Rapa Nui Paul Horley. Rongorongo: Inscribed Objects from Rapa Nui	0
Genevieve Grotjan’s “great discovery”	0
UDM: Private user discovery with minimal information disclosure	0
Review of Parker Hitt: The Father of American Military Cryptology by Betsy Rohaly Smoot	0
Cipher key instructions in early modern Europe: analysis and text edition	0
Deciphering three diplomatic letters sent by Maximilian II in 1575	0
An ultra-lightweight block cipher with string transformations	0
Leo Marks’ “mental one-time pad”: an experimental cipher for British special operations in World War II	0
The classified mathematical papers of A. A. Albert: a glimpse into the application of mathematics to cryptologic problems during the 1950s and 1960s	0