Friedman Documents


Publications

   (Folder ID: ACC15281) Publication, the Friedman Lectures on Cryptology by William F. Friedman, 1965.
Document ID Document Title Filename
A2119475 the Friedman Lectures on Cryptology 41785109082412.pdf
   (Folder ID: ACC21609) National Security Agency, Office of Training Services, Codes and Ciphers (Cryptology) by William F. Friedman, 1961
Document ID Document Title Filename
A101014 Codes and Ciphers (Cryptology); Reprint of Friedman's Article In Encyclopedia Britannica 41768429080752.pdf
   (Folder ID: ACC35225) William Friedman's Copy of John C. Hartfield "Lisbonian" Selection of Roots and Terminals, Containing 21,323 Five Letter Words Equal to 454,670,329 Ten Letter Words, of A Clear, Euphonious and Pronounceable Character. with at Least 2 Letters Difference Between Each Group of 5 Letters, and Telegraphically Dissimilar by European and American Morse. Each Syllable of Which Is In Current Use and Can Be Verified by Dictionaries and the Official Vocabulary. In Strict Accordance with the Decision of the Lisbon Telegraph Conference, 1908, Governing the Use of Artificial Words. Compiled by John Charles Hartfield, 1911.
Document ID Document Title Filename
A101154 Lisbonian Selection of Roots and Terminals 41768689080778.pdf
   (Folder ID: ACC35288) Book Foreword "Weitzenbock, Dr. Roland Invariantentheorie, P. Noordhoff, 1923, Groningen" with Comment by Friedman, 1954
Document ID Document Title Filename
A101155 Comment by Friedman on the Preface to "Invariantentheorie" 41768919080801.pdf
   (Folder ID: ACC4402) Report on German Military Ciphers with Corrections from William F. Friedman, 1918
Document ID Document Title Filename
A2458115 Corrections In Report on German Military Ciphers, February to November, 1918 41785119082413.pdf
A2458116 Corrections In Report on German Military Ciphers, February to November, 1918 41785129082414.pdf
A2458117 Report on Enemy Codes and the Methods Used In Their Solution 41785139082417.pdf
   (Folder ID: ACC47587) Training Course Material from Col. Tiltman to Friedman, Signals Intelligence Course Volume I: Explanatory Text and Short Exercises, Volume II: Solutions. Includes Computer Tabulated Figures for the Exercises and Three Cardboard Discs for Encoding and Decoding the Course Material, 1942
Document ID Document Title Filename
A3079835 S.I. Course: Vol. I-Explanatory Text and Short Exercises 41785809082482.pdf
A3079879 S.I. Course Solutions: VOL.II, Section IV-Poly-Alphabetic Ciphers 41785849082486.pdf
A3079884 Col. Tiltman's Si Course: Problems In Additive Code 41785859082487.pdf
A3079911 S.I. Course: Volume I and Volume II: Col Tillman Indices #3 #1 #2 41785889082491.pdf
A4126892 S.I. Course, Vol. II: Figures and Cipher Texts 41785369082438.pdf
   (Folder ID: ACC50341) Friedman's Copies of Army Regulations, Classification Marking and Safeguarding Military Information (AR-70, 330-5, 105-5, 105-25), 1922-1946
Document ID Document Title Filename
A4127207 USA: Army Regulations, Classification Marking & Safeguarding Military Information, Friedman's Copies; S-028,297 41785399082450.pdf
   (Folder ID: FOLDER 012) War Department Office of the Chief Signal Officer, Washington. Final Report of the Radio Intelligence Section, General Staff General Headquarters American Expeditionary Forces, Register No. 181, Technical Paper of the Signal Intelligence Section War Plans & Training Division, 1935
Document ID Document Title Filename
A66334 Final Report of the Radio Intelligence Section, General Staff, General Headquarters, American Expeditionary Forces 41698429073777.pdf
   (Folder ID: FOLDER 075) War Department Technical Manual (Tm) 11-380 Converter M-209, M-209-A, M-209-B Cipher 17 March 1944
Document ID Document Title Filename
A67854 War Department Technical Manual; Converter M-209, M-209-A, M-209-B (Cipher), 17 March 1944 41709299074861.pdf
   (Folder ID: FOLDER 205) Articles on Cryptography and Cryptanalysis Reprinted from the Signal Corps Bulletin, War Department of the Chief Signal Officer of the United States, 1942
Document ID Document Title Filename
A484988 Articles on Cryptography and Cryptanalysis Reprinted from the Signal Corps Bulletin 41762559080174.pdf
   (Folder ID: FOLDER 206) the Signal Corps Bulletin No. 97, the War Department, Office of the Chief Signal Officer of the United States, July-Sept 1937
Document ID Document Title Filename
A484972 the Signal Corps Bulletin No. 97 41762469080162.pdf
   (Folder ID: FOLDER 213) the Contribution of the Cryptographic Bureaus In the World War, War Department, Office of the Chief Signal Officer, Reprinted from Signal Corps Bulletin Nos. 75-81, 1935
Document ID Document Title Filename
A58127 the Contribution of the Cryptographic Bureaus In the World War; by Yves Gylden-War Department Publication - 41760699079984.pdf
   (Folder ID: FOLDER 214) Technical Paper of the Signal Intelligence Section War Plans and Training Division, Notes on the Liaison Service and the Liaison Intelligence Service of the German Army During the World War, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58123 Notes on the Liaison Service and the Liaison Intelligence Service of the German Army During the World War; Published by War Department, Office of the Chief Signal Officer 41760659079980.pdf
   (Folder ID: FOLDER 219) Technical Support Manual, TEXTA Manual, 1955
Document ID Document Title Filename
A57833 TEXTA Manual; Technical Extracts of Traffic Analysis System 41760229079936.pdf
   (Folder ID: FOLDER 220) Fundamentals of Transmission Security-Joint, 1952
Document ID Document Title Filename
A57822 Fundamentals of Transmission Security-Joint; Armed Forces Security Agency (AFSAG) 1248 41760209079934.pdf

Folder ID: (FOLDER 221) - Folder not releasable

   (Folder ID: FOLDER 222) Department of the Army Technical Manual (Tm) 32-250/Department of the Air Force Manual (Afm) 100-80, Fundamentals of Traffic Analysis (Radio-Telegraph), 1948
Document ID Document Title Filename
A58489 Fundamentals of Traffic Analysis (Radio-Telegraph); Department of the Army Technical Manual Tm 32-250; Department of the Air Force Manual Afm 100-80 41760729079987.pdf
   (Folder ID: FOLDER 225) Technical Paper by Abraham Sinkov, Junior Cryptanalyst, Permutation Tables Involving A Feature of Non-Transposability, War Department, Office of the Chief Signal Officer, 1934
Document ID Document Title Filename
A58474 Permutation Tables Involving A Feature of Non-Transposability, Register No. 2; by Abraham Sinkov 41760649079978.pdf
   (Folder ID: FOLDER 226) Technical Paper by William Friedman, Cryptanalyst, Chief of Signal Intelligence Section, Principles of Indirect Symmetry of Position In Secondary Alphabets and Their Application In the Solution of Polyalphabetic Substitution Ciphers, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58472 the Principles of Indirect Symmetry of Position In Secondary Alphabets and Their Application In the Solution of Polyalphabetic Substitution Ciphers, Register No. 161; by William F. and Elizebeth S. Friedman 41760669079979.pdf
   (Folder ID: FOLDER 227) Technical Paper by Frank B. Rowlett, Junior Cryptanalyst, Further Applications of the Principles of Indirect Symmetry of Position In Secondary Alphabets, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58464 Further Applications of the Principles of Indirect Symmetry of Position In Secondary Alphabets, Register No. 135; by Frank B. Rowlett 41760609079975.pdf
   (Folder ID: FOLDER 228) Technical Paper by Solomon Kullback, Associate Cryptanalyst, Statistical Methods In Cryptanalysis, Revised Edition, War Department, Office of the Chief Signal Officer, 1938
Document ID Document Title Filename
A58459 Statistical Methods In Cryptanalysis, Revised Edition. Register No. 193, Serial No. 1008; by Solomon Kullback 41760349079953.pdf
   (Folder ID: FOLDER 229) NSA-725, Crypto-Linguistic Working Aid No. 3, Russian Dictionary Reverse Alphabetic Sort, June 1955
Document ID Document Title Filename
A58444 Russian Dictionary Reverse Alphabetic Sort; NSA-725 Crypto-Linguistic Working Aid NO.3 41760219079942.pdf
   (Folder ID: FOLDER 230) Army Security Agency, Table of the Binomial Distribution, May 1946
Document ID Document Title Filename
A64686 Army Security Agency, Table of the Binomial Distribution 41761219080058.pdf
   (Folder ID: FOLDER 231) the Index of Coincidence, January 1955 (with Signed Dedication to William Friedman by Howard Campaigne), Statistics for Cryptology 1955
Document ID Document Title Filename
A64687 the Index of Coincidence; Howard H. Campaigne with Personal Note to William F. Friedman 41760429079956.pdf
A64688 Statistics for Cryptology; Howard H. Campaigne 41760939080007.pdf
   (Folder ID: FOLDER 232) Directorate of Intelligence, Headquarters of the United States Air Force, Indications List (Indications of Soviet Preparations to Initiate General War and Indications of Soviet Preparations to Launch an Atomic Air Assault Against Continental United States), 1953; Basic Cryptologic Glossary (Draft), 1954
Document ID Document Title Filename
A64725 Indications List; Section I "Indications Of Soviet Preparations To Initiate General War", Section II "Soviet Preparations To Launch An Atomic Air Assault Against Conus" 41760989080012.pdf
A64726 Basic Cryptologic Glossary; Draft 41760959080009.pdf
   (Folder ID: FOLDER 233) Technical Paper by William Friedman, the Index of Coincidence and Its Applications In Cryptanalysis, War Department, Office of the Chief Signal Officer, 1935 (Reproduction Copy)
Document ID Document Title Filename
A64722 the Index of Coincidence and Its Applications In Cryptanalysis; Technical Paper by William F. Friedman, War Department 41761039080018.pdf
   (Folder ID: FOLDER 234) Basis Cryptologic Glossary, 1955; Draft Samplings for the Unabridged Cryptologic Glossary, 1955
Document ID Document Title Filename
A64719 Basic Cryptologic Glossary 41761109080025.pdf
A64721 Draft Samplings for the Unabridged Cryptologic Glossary 41761069080020.pdf
   (Folder ID: FOLDER 235) Army Extension Courses, Advanced Military Cryptography Special Text No. 166, 1935 Edition (2 Copies) and 1943 Edition
Document ID Document Title Filename
A64689 Army Extension Courses, Special Text No. 166, Advanced Military Cryptography; 1935 Edition 41760719079986.pdf
A64690 Army Extension Courses, Special Text No. 166, Advanced Military Cryptography; Edition 1943 (Revision of 1935) 41760679079981.pdf
A64691 Army Extension Course, Special Text No. 166, Advanced Military Cryptography; Second (1943) Edition 41760779079990.pdf
   (Folder ID: FOLDER 236) Army Extension Courses, Solutions-Elementary Military Cryptography, 1943; Army Extension Courses, Sub Course, Elementary Military Cryptography Introduction and Lesson 1, 1943; Army Extension Courses, Elementary Military Cryptography, Special Text No. 165, 1935 Edition; Army Extension Courses, Elementary Military Cryptography, Special Text No. 165, 1943 Edition
Document ID Document Title Filename
A64682 Army Extension Courses, Solutions, Subcourse, Elementary Military Cryptography 41761559080069.pdf
A64683 Army Extension Courses, Subcourse, Elementary Military Cryptography; Introduction and Lesson 1 41760529079966.pdf
A64684 Army Extension Courses, Special Text No. 165, Elementary Military Cryptography; 1935 Edition 41760369079950.pdf
A64685 Army Extension Courses, Special Text No. 165, Elementary Military Cryptography; 1943 Edition 41760629079976.pdf
   (Folder ID: FOLDER 237) Training Pamphlet No. 3, Elements of Cryptanalysis, May 1923
Document ID Document Title Filename
A64681 Elements of Cryptanalysis, Training Pamphlet No. 3; Prepared In the Office of the Chief Signal Officer 41760269079943.pdf
   (Folder ID: FOLDER 238) Tm 32-220 Basic Cryptography, April 1950
Document ID Document Title Filename
A56932 Basic Cryptography; Dept of Army Technical Manual Tm32-220 41748889078809.pdf
   (Folder ID: FOLDER 239) Army Extension Courses, Special Text No. 166 Original Edition, Advanced Military Cryptography, 1931
Document ID Document Title Filename
A56930 Advanced Military Cryptography; 1931 Edition, Special Text No. 166 41748809078800.pdf
   (Folder ID: FOLDER 240) Department of the Army, Office of the Chief of Military History, German Radio Intelligence, Albert Praun, 1950 (2 Copies with Different Classifications), Including Memoranda Regarding the Document, 1953
Document ID Document Title Filename
A56914 German Radio Intelligence; A Secret Version, Slightly Expanded, Exists, Same Title, Serial MS No P-038 41748549078781.pdf
A56924 Department of the Army Historical Division Study of German Radio Intelligence; Re "German Radio Intelligence," MS No P-038 41748739078791.pdf
A56970 German Radio Intelligence (by Albert Praun, Former Lt. GEN.); Dept. of the Army Office of the Chief of Military History. Includes NSA Memo and Comments on Report 41748999078819.pdf
   (Folder ID: FOLDER 241) National Security Agency, Military Cryptanalysis, Part I, Fourth Edition, by William Friedman, Revised and Enlarged by Lambros D. Callimahos, December 1952
Document ID Document Title Filename
A56895 Military Cryptanalysis, Part I, Monoalphabetic Substitution System; 4th Edition, Friedman , Revised and Enlarged by Callimahos 41748389078762.pdf
   (Folder ID: FOLDER 242) National Security Agency, Military Cryptanalytics, Part I, by William Friedman and Lambros D. Callimahos, December 1952
Document ID Document Title Filename
A56892 Military Cryptanalytics, Part I, Monoalphabetic Substitution Systems; Friedman and Callimahos 41748189078749.pdf
   (Folder ID: FOLDER 243) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, by William Friedman Part I, Third Edition, 1942
Document ID Document Title Filename
A56888 Military Cryptanalysis Part I, Monoalphabetic Substitution Systems; 3rd Edition 41748089078729.pdf
   (Folder ID: FOLDER 244) Extension Course of the Army Security Agency, Sub Course 20-6, Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems, June 1947
Document ID Document Title Filename
A56886 Military Cryptanalysis, Part 1, Monoalphabetic Substitution Systems; Subcourse 20-6 41748049078724.pdf
   (Folder ID: FOLDER 245) National Security Agency, Military Cryptanalytics, by William F. Friedman and Lambros D. Callimahos Part I, April 1956 (This Copy Includes A Dedication from Callimahos to Friedman, Which In Turn Is Spelling Out A Message "Bacon Did Not Write This Work."
Document ID Document Title Filename
A64649 National Security Agency, Military Cryptanalytics, Part I 41748799078803.pdf
   (Folder ID: FOLDER 246) Army Extension Courses, Sub Course: Military Cryptanalysis Part I, Monoalphabetic Substitution System, Lesson Assignment Sheets, 1936-1937
Document ID Document Title Filename
A64648 Army Extension Courses, Subcourse-Military Cryptanalysis Part I, Monalphabetic Substitution Systems 41748769078795.pdf
   (Folder ID: FOLDER 247) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, by William Friedman, Part I Monoalphabetic Substitution Systems & Part II Simple Varieties of Polyalphabetic Substitution Systems, 1938
Document ID Document Title Filename
A64646 Military Cryptanalysis, Parts I and II: Monoalphabetic Substitution Systems 41748699078793.pdf
   (Folder ID: FOLDER 248) Military Cryptanalysis Part 1, Appendix 2, Cryptanalyst's Manual, List of Words Used In Military Text Arranged Alphabetically According to Word Length, November 1946
Document ID Document Title Filename
A64645 Appendix 2 to Military Cryptanalysis Part 1, Headquarters, Army Security Agency 41748679078786.pdf
   (Folder ID: FOLDER 249) Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems, by William Friedman, 1936
Document ID Document Title Filename
A64644 Military Cryptanalysis, Part I-- Monoalphabetic Substitution Systems 41748639078784.pdf
   (Folder ID: FOLDER 250) National Security Agency, Problem Book, Course, Military Cryptanalytics Part 1, May 1954
Document ID Document Title Filename
A64641 National Security Agency Problem Book, Course, Military Cryptanalytics, Part 1 (Short Title: Mc-I Problems); Monoalphabetic Substitution Systems 41748609078779.pdf
   (Folder ID: FOLDER 251) National Security Agency, Course In Military Cryptanalysis, Part 1, December 1952
Document ID Document Title Filename
A64639 National Security Agency Course In Military Cryptanalysis, Part I 41748559078775.pdf
   (Folder ID: FOLDER 252) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, by William Friedman, 1938 and Two Copies of 1941 (One Copy with Minor Revisions)
Document ID Document Title Filename
A64565 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, War Department 41752429079163.pdf
A64566 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, War Department 41752539079175.pdf
   (Folder ID: FOLDER 253) National Security Agency, Military Cryptanalysis, Part II, Interim Edition (First Section), by William Friedman and Lambros Callimahos, December 1955
Document ID Document Title Filename
A64563 Military Cryptanalytics, Part II, Interim Edition (First Section): Periodic Polyalphabetic Substitution Systems; William F. Friedman and Lambros D. Callimahos 41752229079148.pdf
   (Folder ID: FOLDER 254) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, by William Friedman, 1937 and 1943 Third Edition
Document ID Document Title Filename
A64560 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, Third Edition from War Department, Office of Chief Signal Officer, Washington D. C 41751989079119.pdf
A64561 Military Cryptanalysis, Part II, William F. Friedman: Simpler Varieties of Polyalphabetic Substitution Systems 41752109079130.pdf
   (Folder ID: FOLDER 255) National Security Agency, Military Cryptanalysis, Part I, Course Lesson #8, 9, 10, 1941-1956
Document ID Document Title Filename
A64567 Military Cryptanalysis Part I: Monoalphabetic Substitution with Irregular-Length Cipher Units; Monome-Dinome Systems and Others 41752639079180.pdf
A64568 Military Cryptanalysis, Part I, Syllabary Squares and Code Charts 41752679079184.pdf
A64569 Military Cryptanalysis, Part 1, Course Lesson 10, Pars. 81-84; Miscellaneous Monoalphabetic Substitution Systems; Concealment Systems, William F. Friedman 41752709079187.pdf
   (Folder ID: FOLDER 256) National Security Agency, Training Division, Problems In Depth-Reading, June 1954; Problems In the Cryptanalysis of the Zen-40 Cipher Machine, June 1954
Document ID Document Title Filename
A64557 Problems In Reading, Known Alphabets; Training Division 41751929079109.pdf
A64558 Problems In the Cryptanalysis of the Zen-40 Cipher Machine; Training Division 41751949079112.pdf
   (Folder ID: FOLDER 257) National Security Agency, Military Cryptanalysis, Part II, by Lambros Callimahos and William Friedman, Interim Edition (Second and Third Sections), February 1958
Document ID Document Title Filename
A64554 Military Cryptanalytics, Part II, Interim Edition (Second Section); Lambros D. Callimahos and William F. Friedman 41751589079090.pdf
A64556 Military Cryptanalytics, Part II, Interim Edition (Third Section); Lambros D. Callimahos and William F. Friedman 41751819079101.pdf
   (Folder ID: FOLDER 258) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part III, 1939 (with Minor Revisions); Solution of Progressive-Alphabet Cipher with Unknown Mixed Primary Alphabets; Solution of Progressive-Alphabet Cipher with Standard Plaintext Alphabet and Unknown Mixed Cipher Alphabet; Solution of Plain Text Auto Key Problem Using Unknown Identical Primaries by Paul H. Burdick, September 1941
Document ID Document Title Filename
A60206 Solution of Progressive-Alphabet Cipher with Standard Plaintext Alphabet and Unknown Mixed Cipher Alphabet; Describes Techniques Used In Describing the Solution Process 41761589080072.pdf
A60209 Solution of Plain Text Auto Key Problem Using Unknown Identical Primaries 41761609080074.pdf
A60213 Military Cryptanalysis, Part III: Simpler Varieties of Aperiodic Substitution Systems 41761619080075.pdf
   (Folder ID: FOLDER 259) Army Extension Courses, Sub Course, Military Cryptanalysis, Part III, Simple Types of Aperiodic Substitution System, 1938-1939 (Introduction and Lesson 1)
Document ID Document Title Filename
A60198 Sub Course-- Military Cryptanalysis, Part III Simple Types of Aperiodic Substitution Systems (Introduction and Lesson 1) 41761549080068.pdf
   (Folder ID: FOLDER 260) Report, Brochure, and Photographs of the Hand-Driven Ciphering Machine, Type Hc-4, 1954
Document ID Document Title Filename
A60192 Hand-Driven Ciphering Machine 41761569080071.pdf
   (Folder ID: FOLDER 263) War Department, Office of the Chief Signal Officer, Military Cryptanalysis Part IV, Transposition and Fractionating Systems, by William Friedman, 1941
Document ID Document Title Filename
A59439 Military Cryptanalysis Part IV Transposition and Fractionating Systems by William F Friedman 41761079080022.pdf
   (Folder ID: FOLDER 265) War Secrets In the Ether Parts III by Wilhelm F. Flicke, Translated by Ray W. Pettengill, 1953
Document ID Document Title Filename
A59332 War Secrets In the Ether Part III by Wilhelm F Flicke; Aspects of Espionage and the Counterespionage Conducted on A Scale Never Before Known 41760949080010.pdf
   (Folder ID: FOLDER 267) War Department, American Army Field Codes In the American Expeditionary Forces During the First World War, by William F. Friedman, June 1942
Document ID Document Title Filename
A68211 American Army Field Codes In the American Expeditionary Forces During the First World War 41784809082383.pdf
   (Folder ID: FOLDER 268) War Department, Office of the Chief Signal Officer, Technical Paper of the Signal Intelligence Section War Plans and Training Division, German Military Ciphers from February to November, 1918, 1935 (with Notes Regarding the Copy Held at the Library of Congress)
Document ID Document Title Filename
A68206 German Military Ciphers from February to November 1918 41784789082381.pdf
   (Folder ID: FOLDER 269) War Department, Office of the Chief Signal Officer, Technical Paper of the Signal Intelligence Section, War Plans and Training Division, General Solution for the ADFGVX Cipher System, 1934
Document ID Document Title Filename
A68203 General Solution for the ADFGVX Cipher System 41784769082379.pdf
   (Folder ID: FOLDER 270) War Department, Office of the Chief Signal Officer, Studies In German Diplomatic Codes Employed During the World War: Code 18470 and Its Derivatives, the "Fuenfbuchstabenheft, German Methods Of Code Encipherment, By Charles J. Mendelshon, 1937
Document ID Document Title Filename
A68202 Studies In German Diplomatic Codes Employed During the (First) World War 41784749082377.pdf
   (Folder ID: FOLDER 389) Army Security Agency (ASA) Discussion Topics Newsletters (1953), ASA Review Newsletters (May-June 1947, July-August 1947, May-June 1950), 1947-1953
Document ID Document Title Filename
A66138 ASA Discussion Topics, April 1953 41747319078652.pdf
A66139 ASA Discussion Topics, 27 May 1953 41747349078654.pdf
A66146 ASA Review-May/June 1947 41747379078658.pdf
A66159 ASA Review July-August 1947 41747409078661.pdf
A66161 ASA Review May-June 1950 41747439078663.pdf
   (Folder ID: FOLDER 410) NSA Regulation, NSA Civilian Personnel Screening Board and Appointments to the NSA Civilian Personnel Screening Board, 1952-1954
Document ID Document Title Filename
A66853 Appointments to NSA Civilian Personnel Screening Board 41756419079556.pdf
A66856 Meeting of Civilian Personnel Screening Board, 6 December 1954; GS-14 and GS-15 Promotion Nominations 41756239079538.pdf
A66858 Meeting of Civilian Personnel Screening Board, 30 November 1954; GS-14 and GS-15 Promotion Nominations 41756309079545.pdf
A66880 Civilian Personnel Screening Board, NSA Regulation 32-1 41756209079535.pdf
   (Folder ID: FOLDER 437) Technical Paper, War Department, Office of the Chief Signal Officer, Field Codes Used by the German Army During the World War, by William F. Friedman, 1935
Document ID Document Title Filename
A57075 Field Codes Used by the German Army During the World War 41751269079046.pdf
   (Folder ID: FOLDER 438) Technical Paper of the Signal Intelligence Section, War Plans and Training Division, Principles of Solution of Military Field Codes Used by the German Army In 1917, 1935
Document ID Document Title Filename
A57074 Principles of Solution of Military Field Codes Used by the German Army In 1917 41751199079040.pdf
   (Folder ID: FOLDER 439) Technical Paper by Solomon Kullback, PH.D., Junior Cryptanalyst of the Signal Intelligence Section, War Plans and Training Division, General Solution for the Double Transposition Cipher, 1934
Document ID Document Title Filename
A57071 General Solution for the Double Transposition Cipher 41751169079035.pdf
   (Folder ID: FOLDER 440) War Department, Division Field Code Book No. 4, 1922
Document ID Document Title Filename
A57068 Division Field Code NO.4 41751139079032.pdf
   (Folder ID: FOLDER 452) War Department Office of the Chief Signal Officer, Military Cryptanalysis Part IV, Transposition and Fractionating Systems, by William Friedman, Principal Cryptanalysis, Signal Intelligence Officer (Preliminary Edition), 1939
Document ID Document Title Filename
A56913 Military Cryptanalysis, Part IV-Transposition and Fractionating Systems; by William F. Friedman for the War Department's Chief Signal Officer 41749819078904.pdf
   (Folder ID: FOLDER 465) War Department, Arlington Hall Message and Code Center, Procedures and Processing Times, 1943
Document ID Document Title Filename
A67461 Processing of Outgoing Messages 41733179077241.pdf
A67463 Processing of Messages Through War Department Code Center 41733229077246.pdf
A67465 Report on the Process Time of 228-Q Received and SIGABA Messages 41733249077249.pdf
   (Folder ID: FOLDER 500) Saturday Evening Post, Including Article Called "Are We Stifling The Inventors?" by Captain George N. Robillard, US Navy, 9 June 1951
Document ID Document Title Filename
A557816 Saturday Evening Post Article Entitled 'Are We Stifling the Inventors?' 41784819082384.pdf
   (Folder ID: FOLDER 507) Riverbank Laboratory Publications: Synoptic Tables for the Solution of Ciphers and Bibliography of Cipher Literature, 1918; Methods for the Reconstruction of Primary Alphabets, 1918; the Production and Detection of Messages In Concealed Writing and Images, 1918
Document ID Document Title Filename
A4146440 Synoptic Tables for the Solution of Ciphers 41783759082281.pdf
A4146441 Methods for the Reconstruction of Primary Alphabets 41783829082288.pdf
   (Folder ID: FOLDER 508) Military Cryptanalysis: Part II Simpler Varieties of Polyalphabetic Substitution Systems by William F. Friedman Principal Cryptanalyst, Prepared Under the Direction of the Chief Signal Officer, 1937
Document ID Document Title Filename
A4146445 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems 41784299082338.pdf
   (Folder ID: FOLDER 509) Army Extension Courses: Subcourse-Military Cryptanalysis Part II, Simpler Varieties of Polyalphabetic Substitution Systems, 1937
Document ID Document Title Filename
A4146451 Army Extension Courses: Sub Course-- Military Cryptanalysis Part II: Simpler Varieties of Polyalphabetic Substitution Systems 41784369082342.pdf
   (Folder ID: FOLDER 511) Military Cryptanalysis: Part III Aperiodic Substitution Systems by William F. Friedman, Principal Cryptanalyst, Signal Intelligence Service, Prepared Under the Direction of the Chief Signal Officer, 1938
Document ID Document Title Filename
A4146453 Military Cryptanalysis, Part III: Aperiodic Substitution Systems 41784459082351.pdf
 
   (Folder ID: ACC15281) Publication, the Friedman Lectures on Cryptology by William F. Friedman, 1965.
Document ID Document Title Filename
A2119475 the Friedman Lectures on Cryptology 41785109082412.pdf
   (Folder ID: ACC21609) National Security Agency, Office of Training Services, Codes and Ciphers (Cryptology) by William F. Friedman, 1961
Document ID Document Title Filename
A101014 Codes and Ciphers (Cryptology); Reprint of Friedman's Article In Encyclopedia Britannica 41768429080752.pdf
   (Folder ID: ACC35225) William Friedman's Copy of John C. Hartfield "Lisbonian" Selection of Roots and Terminals, Containing 21,323 Five Letter Words Equal to 454,670,329 Ten Letter Words, of A Clear, Euphonious and Pronounceable Character. with at Least 2 Letters Difference Between Each Group of 5 Letters, and Telegraphically Dissimilar by European and American Morse. Each Syllable of Which Is In Current Use and Can Be Verified by Dictionaries and the Official Vocabulary. In Strict Accordance with the Decision of the Lisbon Telegraph Conference, 1908, Governing the Use of Artificial Words. Compiled by John Charles Hartfield, 1911.
Document ID Document Title Filename
A101154 Lisbonian Selection of Roots and Terminals 41768689080778.pdf
   (Folder ID: ACC35288) Book Foreword "Weitzenbock, Dr. Roland Invariantentheorie, P. Noordhoff, 1923, Groningen" with Comment by Friedman, 1954
Document ID Document Title Filename
A101155 Comment by Friedman on the Preface to "Invariantentheorie" 41768919080801.pdf
   (Folder ID: ACC4402) Report on German Military Ciphers with Corrections from William F. Friedman, 1918
Document ID Document Title Filename
A2458115 Corrections In Report on German Military Ciphers, February to November, 1918 41785119082413.pdf
A2458116 Corrections In Report on German Military Ciphers, February to November, 1918 41785129082414.pdf
A2458117 Report on Enemy Codes and the Methods Used In Their Solution 41785139082417.pdf
   (Folder ID: ACC47587) Training Course Material from Col. Tiltman to Friedman, Signals Intelligence Course Volume I: Explanatory Text and Short Exercises, Volume II: Solutions. Includes Computer Tabulated Figures for the Exercises and Three Cardboard Discs for Encoding and Decoding the Course Material, 1942
Document ID Document Title Filename
A3079835 S.I. Course: Vol. I-Explanatory Text and Short Exercises 41785809082482.pdf
A3079879 S.I. Course Solutions: VOL.II, Section IV-Poly-Alphabetic Ciphers 41785849082486.pdf
A3079884 Col. Tiltman's Si Course: Problems In Additive Code 41785859082487.pdf
A3079911 S.I. Course: Volume I and Volume II: Col Tillman Indices #3 #1 #2 41785889082491.pdf
A4126892 S.I. Course, Vol. II: Figures and Cipher Texts 41785369082438.pdf
   (Folder ID: ACC50341) Friedman's Copies of Army Regulations, Classification Marking and Safeguarding Military Information (AR-70, 330-5, 105-5, 105-25), 1922-1946
Document ID Document Title Filename
A4127207 USA: Army Regulations, Classification Marking & Safeguarding Military Information, Friedman's Copies; S-028,297 41785399082450.pdf
   (Folder ID: FOLDER 012) War Department Office of the Chief Signal Officer, Washington. Final Report of the Radio Intelligence Section, General Staff General Headquarters American Expeditionary Forces, Register No. 181, Technical Paper of the Signal Intelligence Section War Plans & Training Division, 1935
Document ID Document Title Filename
A66334 Final Report of the Radio Intelligence Section, General Staff, General Headquarters, American Expeditionary Forces 41698429073777.pdf
   (Folder ID: FOLDER 075) War Department Technical Manual (Tm) 11-380 Converter M-209, M-209-A, M-209-B Cipher 17 March 1944
Document ID Document Title Filename
A67854 War Department Technical Manual; Converter M-209, M-209-A, M-209-B (Cipher), 17 March 1944 41709299074861.pdf
   (Folder ID: FOLDER 205) Articles on Cryptography and Cryptanalysis Reprinted from the Signal Corps Bulletin, War Department of the Chief Signal Officer of the United States, 1942
Document ID Document Title Filename
A484988 Articles on Cryptography and Cryptanalysis Reprinted from the Signal Corps Bulletin 41762559080174.pdf
   (Folder ID: FOLDER 206) the Signal Corps Bulletin No. 97, the War Department, Office of the Chief Signal Officer of the United States, July-Sept 1937
Document ID Document Title Filename
A484972 the Signal Corps Bulletin No. 97 41762469080162.pdf
   (Folder ID: FOLDER 213) the Contribution of the Cryptographic Bureaus In the World War, War Department, Office of the Chief Signal Officer, Reprinted from Signal Corps Bulletin Nos. 75-81, 1935
Document ID Document Title Filename
A58127 the Contribution of the Cryptographic Bureaus In the World War; by Yves Gylden-War Department Publication - 41760699079984.pdf
   (Folder ID: FOLDER 214) Technical Paper of the Signal Intelligence Section War Plans and Training Division, Notes on the Liaison Service and the Liaison Intelligence Service of the German Army During the World War, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58123 Notes on the Liaison Service and the Liaison Intelligence Service of the German Army During the World War; Published by War Department, Office of the Chief Signal Officer 41760659079980.pdf
   (Folder ID: FOLDER 219) Technical Support Manual, TEXTA Manual, 1955
Document ID Document Title Filename
A57833 TEXTA Manual; Technical Extracts of Traffic Analysis System 41760229079936.pdf
   (Folder ID: FOLDER 220) Fundamentals of Transmission Security-Joint, 1952
Document ID Document Title Filename
A57822 Fundamentals of Transmission Security-Joint; Armed Forces Security Agency (AFSAG) 1248 41760209079934.pdf

Folder ID: (FOLDER 221) - Folder not releasable

   (Folder ID: FOLDER 222) Department of the Army Technical Manual (Tm) 32-250/Department of the Air Force Manual (Afm) 100-80, Fundamentals of Traffic Analysis (Radio-Telegraph), 1948
Document ID Document Title Filename
A58489 Fundamentals of Traffic Analysis (Radio-Telegraph); Department of the Army Technical Manual Tm 32-250; Department of the Air Force Manual Afm 100-80 41760729079987.pdf
   (Folder ID: FOLDER 225) Technical Paper by Abraham Sinkov, Junior Cryptanalyst, Permutation Tables Involving A Feature of Non-Transposability, War Department, Office of the Chief Signal Officer, 1934
Document ID Document Title Filename
A58474 Permutation Tables Involving A Feature of Non-Transposability, Register No. 2; by Abraham Sinkov 41760649079978.pdf
   (Folder ID: FOLDER 226) Technical Paper by William Friedman, Cryptanalyst, Chief of Signal Intelligence Section, Principles of Indirect Symmetry of Position In Secondary Alphabets and Their Application In the Solution of Polyalphabetic Substitution Ciphers, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58472 the Principles of Indirect Symmetry of Position In Secondary Alphabets and Their Application In the Solution of Polyalphabetic Substitution Ciphers, Register No. 161; by William F. and Elizebeth S. Friedman 41760669079979.pdf
   (Folder ID: FOLDER 227) Technical Paper by Frank B. Rowlett, Junior Cryptanalyst, Further Applications of the Principles of Indirect Symmetry of Position In Secondary Alphabets, War Department, Office of the Chief Signal Officer, 1935
Document ID Document Title Filename
A58464 Further Applications of the Principles of Indirect Symmetry of Position In Secondary Alphabets, Register No. 135; by Frank B. Rowlett 41760609079975.pdf
   (Folder ID: FOLDER 228) Technical Paper by Solomon Kullback, Associate Cryptanalyst, Statistical Methods In Cryptanalysis, Revised Edition, War Department, Office of the Chief Signal Officer, 1938
Document ID Document Title Filename
A58459 Statistical Methods In Cryptanalysis, Revised Edition. Register No. 193, Serial No. 1008; by Solomon Kullback 41760349079953.pdf
   (Folder ID: FOLDER 229) NSA-725, Crypto-Linguistic Working Aid No. 3, Russian Dictionary Reverse Alphabetic Sort, June 1955
Document ID Document Title Filename
A58444 Russian Dictionary Reverse Alphabetic Sort; NSA-725 Crypto-Linguistic Working Aid NO.3 41760219079942.pdf
   (Folder ID: FOLDER 230) Army Security Agency, Table of the Binomial Distribution, May 1946
Document ID Document Title Filename
A64686 Army Security Agency, Table of the Binomial Distribution 41761219080058.pdf
   (Folder ID: FOLDER 231) the Index of Coincidence, January 1955 (with Signed Dedication to William Friedman by Howard Campaigne), Statistics for Cryptology 1955
Document ID Document Title Filename
A64687 the Index of Coincidence; Howard H. Campaigne with Personal Note to William F. Friedman 41760429079956.pdf
A64688 Statistics for Cryptology; Howard H. Campaigne 41760939080007.pdf
   (Folder ID: FOLDER 232) Directorate of Intelligence, Headquarters of the United States Air Force, Indications List (Indications of Soviet Preparations to Initiate General War and Indications of Soviet Preparations to Launch an Atomic Air Assault Against Continental United States), 1953; Basic Cryptologic Glossary (Draft), 1954
Document ID Document Title Filename
A64725 Indications List; Section I "Indications Of Soviet Preparations To Initiate General War", Section II "Soviet Preparations To Launch An Atomic Air Assault Against Conus" 41760989080012.pdf
A64726 Basic Cryptologic Glossary; Draft 41760959080009.pdf
   (Folder ID: FOLDER 233) Technical Paper by William Friedman, the Index of Coincidence and Its Applications In Cryptanalysis, War Department, Office of the Chief Signal Officer, 1935 (Reproduction Copy)
Document ID Document Title Filename
A64722 the Index of Coincidence and Its Applications In Cryptanalysis; Technical Paper by William F. Friedman, War Department 41761039080018.pdf
   (Folder ID: FOLDER 234) Basis Cryptologic Glossary, 1955; Draft Samplings for the Unabridged Cryptologic Glossary, 1955
Document ID Document Title Filename
A64719 Basic Cryptologic Glossary 41761109080025.pdf
A64721 Draft Samplings for the Unabridged Cryptologic Glossary 41761069080020.pdf
   (Folder ID: FOLDER 235) Army Extension Courses, Advanced Military Cryptography Special Text No. 166, 1935 Edition (2 Copies) and 1943 Edition
Document ID Document Title Filename
A64689 Army Extension Courses, Special Text No. 166, Advanced Military Cryptography; 1935 Edition 41760719079986.pdf
A64690 Army Extension Courses, Special Text No. 166, Advanced Military Cryptography; Edition 1943 (Revision of 1935) 41760679079981.pdf
A64691 Army Extension Course, Special Text No. 166, Advanced Military Cryptography; Second (1943) Edition 41760779079990.pdf
   (Folder ID: FOLDER 236) Army Extension Courses, Solutions-Elementary Military Cryptography, 1943; Army Extension Courses, Sub Course, Elementary Military Cryptography Introduction and Lesson 1, 1943; Army Extension Courses, Elementary Military Cryptography, Special Text No. 165, 1935 Edition; Army Extension Courses, Elementary Military Cryptography, Special Text No. 165, 1943 Edition
Document ID Document Title Filename
A64682 Army Extension Courses, Solutions, Subcourse, Elementary Military Cryptography 41761559080069.pdf
A64683 Army Extension Courses, Subcourse, Elementary Military Cryptography; Introduction and Lesson 1 41760529079966.pdf
A64684 Army Extension Courses, Special Text No. 165, Elementary Military Cryptography; 1935 Edition 41760369079950.pdf
A64685 Army Extension Courses, Special Text No. 165, Elementary Military Cryptography; 1943 Edition 41760629079976.pdf
   (Folder ID: FOLDER 237) Training Pamphlet No. 3, Elements of Cryptanalysis, May 1923
Document ID Document Title Filename
A64681 Elements of Cryptanalysis, Training Pamphlet No. 3; Prepared In the Office of the Chief Signal Officer 41760269079943.pdf
   (Folder ID: FOLDER 238) Tm 32-220 Basic Cryptography, April 1950
Document ID Document Title Filename
A56932 Basic Cryptography; Dept of Army Technical Manual Tm32-220 41748889078809.pdf
   (Folder ID: FOLDER 239) Army Extension Courses, Special Text No. 166 Original Edition, Advanced Military Cryptography, 1931
Document ID Document Title Filename
A56930 Advanced Military Cryptography; 1931 Edition, Special Text No. 166 41748809078800.pdf
   (Folder ID: FOLDER 240) Department of the Army, Office of the Chief of Military History, German Radio Intelligence, Albert Praun, 1950 (2 Copies with Different Classifications), Including Memoranda Regarding the Document, 1953
Document ID Document Title Filename
A56914 German Radio Intelligence; A Secret Version, Slightly Expanded, Exists, Same Title, Serial MS No P-038 41748549078781.pdf
A56924 Department of the Army Historical Division Study of German Radio Intelligence; Re "German Radio Intelligence," MS No P-038 41748739078791.pdf
A56970 German Radio Intelligence (by Albert Praun, Former Lt. GEN.); Dept. of the Army Office of the Chief of Military History. Includes NSA Memo and Comments on Report 41748999078819.pdf
   (Folder ID: FOLDER 241) National Security Agency, Military Cryptanalysis, Part I, Fourth Edition, by William Friedman, Revised and Enlarged by Lambros D. Callimahos, December 1952
Document ID Document Title Filename
A56895 Military Cryptanalysis, Part I, Monoalphabetic Substitution System; 4th Edition, Friedman , Revised and Enlarged by Callimahos 41748389078762.pdf
   (Folder ID: FOLDER 242) National Security Agency, Military Cryptanalytics, Part I, by William Friedman and Lambros D. Callimahos, December 1952
Document ID Document Title Filename
A56892 Military Cryptanalytics, Part I, Monoalphabetic Substitution Systems; Friedman and Callimahos 41748189078749.pdf
   (Folder ID: FOLDER 243) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, by William Friedman Part I, Third Edition, 1942
Document ID Document Title Filename
A56888 Military Cryptanalysis Part I, Monoalphabetic Substitution Systems; 3rd Edition 41748089078729.pdf
   (Folder ID: FOLDER 244) Extension Course of the Army Security Agency, Sub Course 20-6, Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems, June 1947
Document ID Document Title Filename
A56886 Military Cryptanalysis, Part 1, Monoalphabetic Substitution Systems; Subcourse 20-6 41748049078724.pdf
   (Folder ID: FOLDER 245) National Security Agency, Military Cryptanalytics, by William F. Friedman and Lambros D. Callimahos Part I, April 1956 (This Copy Includes A Dedication from Callimahos to Friedman, Which In Turn Is Spelling Out A Message "Bacon Did Not Write This Work."
Document ID Document Title Filename
A64649 National Security Agency, Military Cryptanalytics, Part I 41748799078803.pdf
   (Folder ID: FOLDER 246) Army Extension Courses, Sub Course: Military Cryptanalysis Part I, Monoalphabetic Substitution System, Lesson Assignment Sheets, 1936-1937
Document ID Document Title Filename
A64648 Army Extension Courses, Subcourse-Military Cryptanalysis Part I, Monalphabetic Substitution Systems 41748769078795.pdf
   (Folder ID: FOLDER 247) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, by William Friedman, Part I Monoalphabetic Substitution Systems & Part II Simple Varieties of Polyalphabetic Substitution Systems, 1938
Document ID Document Title Filename
A64646 Military Cryptanalysis, Parts I and II: Monoalphabetic Substitution Systems 41748699078793.pdf
   (Folder ID: FOLDER 248) Military Cryptanalysis Part 1, Appendix 2, Cryptanalyst's Manual, List of Words Used In Military Text Arranged Alphabetically According to Word Length, November 1946
Document ID Document Title Filename
A64645 Appendix 2 to Military Cryptanalysis Part 1, Headquarters, Army Security Agency 41748679078786.pdf
   (Folder ID: FOLDER 249) Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems, by William Friedman, 1936
Document ID Document Title Filename
A64644 Military Cryptanalysis, Part I-- Monoalphabetic Substitution Systems 41748639078784.pdf
   (Folder ID: FOLDER 250) National Security Agency, Problem Book, Course, Military Cryptanalytics Part 1, May 1954
Document ID Document Title Filename
A64641 National Security Agency Problem Book, Course, Military Cryptanalytics, Part 1 (Short Title: Mc-I Problems); Monoalphabetic Substitution Systems 41748609078779.pdf
   (Folder ID: FOLDER 251) National Security Agency, Course In Military Cryptanalysis, Part 1, December 1952
Document ID Document Title Filename
A64639 National Security Agency Course In Military Cryptanalysis, Part I 41748559078775.pdf
   (Folder ID: FOLDER 252) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, by William Friedman, 1938 and Two Copies of 1941 (One Copy with Minor Revisions)
Document ID Document Title Filename
A64565 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, War Department 41752429079163.pdf
A64566 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, War Department 41752539079175.pdf
   (Folder ID: FOLDER 253) National Security Agency, Military Cryptanalysis, Part II, Interim Edition (First Section), by William Friedman and Lambros Callimahos, December 1955
Document ID Document Title Filename
A64563 Military Cryptanalytics, Part II, Interim Edition (First Section): Periodic Polyalphabetic Substitution Systems; William F. Friedman and Lambros D. Callimahos 41752229079148.pdf
   (Folder ID: FOLDER 254) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, by William Friedman, 1937 and 1943 Third Edition
Document ID Document Title Filename
A64560 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems, Third Edition from War Department, Office of Chief Signal Officer, Washington D. C 41751989079119.pdf
A64561 Military Cryptanalysis, Part II, William F. Friedman: Simpler Varieties of Polyalphabetic Substitution Systems 41752109079130.pdf
   (Folder ID: FOLDER 255) National Security Agency, Military Cryptanalysis, Part I, Course Lesson #8, 9, 10, 1941-1956
Document ID Document Title Filename
A64567 Military Cryptanalysis Part I: Monoalphabetic Substitution with Irregular-Length Cipher Units; Monome-Dinome Systems and Others 41752639079180.pdf
A64568 Military Cryptanalysis, Part I, Syllabary Squares and Code Charts 41752679079184.pdf
A64569 Military Cryptanalysis, Part 1, Course Lesson 10, Pars. 81-84; Miscellaneous Monoalphabetic Substitution Systems; Concealment Systems, William F. Friedman 41752709079187.pdf
   (Folder ID: FOLDER 256) National Security Agency, Training Division, Problems In Depth-Reading, June 1954; Problems In the Cryptanalysis of the Zen-40 Cipher Machine, June 1954
Document ID Document Title Filename
A64557 Problems In Reading, Known Alphabets; Training Division 41751929079109.pdf
A64558 Problems In the Cryptanalysis of the Zen-40 Cipher Machine; Training Division 41751949079112.pdf
   (Folder ID: FOLDER 257) National Security Agency, Military Cryptanalysis, Part II, by Lambros Callimahos and William Friedman, Interim Edition (Second and Third Sections), February 1958
Document ID Document Title Filename
A64554 Military Cryptanalytics, Part II, Interim Edition (Second Section); Lambros D. Callimahos and William F. Friedman 41751589079090.pdf
A64556 Military Cryptanalytics, Part II, Interim Edition (Third Section); Lambros D. Callimahos and William F. Friedman 41751819079101.pdf
   (Folder ID: FOLDER 258) War Department, Office of the Chief Signal Officer, Military Cryptanalysis, Part III, 1939 (with Minor Revisions); Solution of Progressive-Alphabet Cipher with Unknown Mixed Primary Alphabets; Solution of Progressive-Alphabet Cipher with Standard Plaintext Alphabet and Unknown Mixed Cipher Alphabet; Solution of Plain Text Auto Key Problem Using Unknown Identical Primaries by Paul H. Burdick, September 1941
Document ID Document Title Filename
A60206 Solution of Progressive-Alphabet Cipher with Standard Plaintext Alphabet and Unknown Mixed Cipher Alphabet; Describes Techniques Used In Describing the Solution Process 41761589080072.pdf
A60209 Solution of Plain Text Auto Key Problem Using Unknown Identical Primaries 41761609080074.pdf
A60213 Military Cryptanalysis, Part III: Simpler Varieties of Aperiodic Substitution Systems 41761619080075.pdf
   (Folder ID: FOLDER 259) Army Extension Courses, Sub Course, Military Cryptanalysis, Part III, Simple Types of Aperiodic Substitution System, 1938-1939 (Introduction and Lesson 1)
Document ID Document Title Filename
A60198 Sub Course-- Military Cryptanalysis, Part III Simple Types of Aperiodic Substitution Systems (Introduction and Lesson 1) 41761549080068.pdf
   (Folder ID: FOLDER 260) Report, Brochure, and Photographs of the Hand-Driven Ciphering Machine, Type Hc-4, 1954
Document ID Document Title Filename
A60192 Hand-Driven Ciphering Machine 41761569080071.pdf
   (Folder ID: FOLDER 263) War Department, Office of the Chief Signal Officer, Military Cryptanalysis Part IV, Transposition and Fractionating Systems, by William Friedman, 1941
Document ID Document Title Filename
A59439 Military Cryptanalysis Part IV Transposition and Fractionating Systems by William F Friedman 41761079080022.pdf
   (Folder ID: FOLDER 265) War Secrets In the Ether Parts III by Wilhelm F. Flicke, Translated by Ray W. Pettengill, 1953
Document ID Document Title Filename
A59332 War Secrets In the Ether Part III by Wilhelm F Flicke; Aspects of Espionage and the Counterespionage Conducted on A Scale Never Before Known 41760949080010.pdf
   (Folder ID: FOLDER 267) War Department, American Army Field Codes In the American Expeditionary Forces During the First World War, by William F. Friedman, June 1942
Document ID Document Title Filename
A68211 American Army Field Codes In the American Expeditionary Forces During the First World War 41784809082383.pdf
   (Folder ID: FOLDER 268) War Department, Office of the Chief Signal Officer, Technical Paper of the Signal Intelligence Section War Plans and Training Division, German Military Ciphers from February to November, 1918, 1935 (with Notes Regarding the Copy Held at the Library of Congress)
Document ID Document Title Filename
A68206 German Military Ciphers from February to November 1918 41784789082381.pdf
   (Folder ID: FOLDER 269) War Department, Office of the Chief Signal Officer, Technical Paper of the Signal Intelligence Section, War Plans and Training Division, General Solution for the ADFGVX Cipher System, 1934
Document ID Document Title Filename
A68203 General Solution for the ADFGVX Cipher System 41784769082379.pdf
   (Folder ID: FOLDER 270) War Department, Office of the Chief Signal Officer, Studies In German Diplomatic Codes Employed During the World War: Code 18470 and Its Derivatives, the "Fuenfbuchstabenheft, German Methods Of Code Encipherment, By Charles J. Mendelshon, 1937
Document ID Document Title Filename
A68202 Studies In German Diplomatic Codes Employed During the (First) World War 41784749082377.pdf
   (Folder ID: FOLDER 389) Army Security Agency (ASA) Discussion Topics Newsletters (1953), ASA Review Newsletters (May-June 1947, July-August 1947, May-June 1950), 1947-1953
Document ID Document Title Filename
A66138 ASA Discussion Topics, April 1953 41747319078652.pdf
A66139 ASA Discussion Topics, 27 May 1953 41747349078654.pdf
A66146 ASA Review-May/June 1947 41747379078658.pdf
A66159 ASA Review July-August 1947 41747409078661.pdf
A66161 ASA Review May-June 1950 41747439078663.pdf
   (Folder ID: FOLDER 410) NSA Regulation, NSA Civilian Personnel Screening Board and Appointments to the NSA Civilian Personnel Screening Board, 1952-1954
Document ID Document Title Filename
A66853 Appointments to NSA Civilian Personnel Screening Board 41756419079556.pdf
A66856 Meeting of Civilian Personnel Screening Board, 6 December 1954; GS-14 and GS-15 Promotion Nominations 41756239079538.pdf
A66858 Meeting of Civilian Personnel Screening Board, 30 November 1954; GS-14 and GS-15 Promotion Nominations 41756309079545.pdf
A66880 Civilian Personnel Screening Board, NSA Regulation 32-1 41756209079535.pdf
   (Folder ID: FOLDER 437) Technical Paper, War Department, Office of the Chief Signal Officer, Field Codes Used by the German Army During the World War, by William F. Friedman, 1935
Document ID Document Title Filename
A57075 Field Codes Used by the German Army During the World War 41751269079046.pdf
   (Folder ID: FOLDER 438) Technical Paper of the Signal Intelligence Section, War Plans and Training Division, Principles of Solution of Military Field Codes Used by the German Army In 1917, 1935
Document ID Document Title Filename
A57074 Principles of Solution of Military Field Codes Used by the German Army In 1917 41751199079040.pdf
   (Folder ID: FOLDER 439) Technical Paper by Solomon Kullback, PH.D., Junior Cryptanalyst of the Signal Intelligence Section, War Plans and Training Division, General Solution for the Double Transposition Cipher, 1934
Document ID Document Title Filename
A57071 General Solution for the Double Transposition Cipher 41751169079035.pdf
   (Folder ID: FOLDER 440) War Department, Division Field Code Book No. 4, 1922
Document ID Document Title Filename
A57068 Division Field Code NO.4 41751139079032.pdf
   (Folder ID: FOLDER 452) War Department Office of the Chief Signal Officer, Military Cryptanalysis Part IV, Transposition and Fractionating Systems, by William Friedman, Principal Cryptanalysis, Signal Intelligence Officer (Preliminary Edition), 1939
Document ID Document Title Filename
A56913 Military Cryptanalysis, Part IV-Transposition and Fractionating Systems; by William F. Friedman for the War Department's Chief Signal Officer 41749819078904.pdf
   (Folder ID: FOLDER 465) War Department, Arlington Hall Message and Code Center, Procedures and Processing Times, 1943
Document ID Document Title Filename
A67461 Processing of Outgoing Messages 41733179077241.pdf
A67463 Processing of Messages Through War Department Code Center 41733229077246.pdf
A67465 Report on the Process Time of 228-Q Received and SIGABA Messages 41733249077249.pdf
   (Folder ID: FOLDER 500) Saturday Evening Post, Including Article Called "Are We Stifling The Inventors?" by Captain George N. Robillard, US Navy, 9 June 1951
Document ID Document Title Filename
A557816 Saturday Evening Post Article Entitled 'Are We Stifling the Inventors?' 41784819082384.pdf
   (Folder ID: FOLDER 507) Riverbank Laboratory Publications: Synoptic Tables for the Solution of Ciphers and Bibliography of Cipher Literature, 1918; Methods for the Reconstruction of Primary Alphabets, 1918; the Production and Detection of Messages In Concealed Writing and Images, 1918
Document ID Document Title Filename
A4146440 Synoptic Tables for the Solution of Ciphers 41783759082281.pdf
A4146441 Methods for the Reconstruction of Primary Alphabets 41783829082288.pdf
   (Folder ID: FOLDER 508) Military Cryptanalysis: Part II Simpler Varieties of Polyalphabetic Substitution Systems by William F. Friedman Principal Cryptanalyst, Prepared Under the Direction of the Chief Signal Officer, 1937
Document ID Document Title Filename
A4146445 Military Cryptanalysis, Part II, Simpler Varieties of Polyalphabetic Substitution Systems 41784299082338.pdf
   (Folder ID: FOLDER 509) Army Extension Courses: Subcourse-Military Cryptanalysis Part II, Simpler Varieties of Polyalphabetic Substitution Systems, 1937
Document ID Document Title Filename
A4146451 Army Extension Courses: Sub Course-- Military Cryptanalysis Part II: Simpler Varieties of Polyalphabetic Substitution Systems 41784369082342.pdf
   (Folder ID: FOLDER 511) Military Cryptanalysis: Part III Aperiodic Substitution Systems by William F. Friedman, Principal Cryptanalyst, Signal Intelligence Service, Prepared Under the Direction of the Chief Signal Officer, 1938
Document ID Document Title Filename
A4146453 Military Cryptanalysis, Part III: Aperiodic Substitution Systems 41784459082351.pdf