CIPHER MACHINES AND CRYPTOLOGY
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Previous Updates (refresh pages for newest version)

If your last visit has been a while ago, this page lists all previous updates to catch up reading.

22-01-2023 Operation Tinker Bell Maggie Koo is the 21st to complete Operation Tinker Bell.
18-01-2023
KL-7 Tech & History development KL-7 and its rotors rearranged chronologically
13-01-2023
Operation Tinker Bell Mr. Reis is the 20th person to complete Operation Tinker Bell.
10-01-2023
KL-7 Tech & History doc request HL-1 tape readers and KLX-7 adaptors by FRG.
08-01-2023
Crypto Box Challenge 10th from 82 participants completed the Crypto Box Challenge.
04-01-2023
KL-7 Tech & History added info and document on development of KL-7 rotors.
02-01-2023
KL-7 Tech & History more docs an info on security and development US/UK crypto.

29-12-2022 KL-7 Tech & History Added document security assessment US/UK cryptographic equipment.
24-12-2022
KL-7 Tech & History Added info and docs CCM, and BRUTUS vs ADONIS on AFSAM-47.
21-12-2022
SIGINT Chatter Cyber Security Videos from Gary Ruddell's cyber website
09-12-2022
KL-7 Tech & History Added doc NSA COMSEC Material Program AFSAM-7 & 47B
07-12-2022
KL-7 Tech & History Added documents procurement AFSAM-7 by FBI.
05-12-2022
KL-7 Tech & History Added audio samples of KL-7 startup, rotors and enciphering.

30-11-2022 Hagelin Crypto AG Added different ways crypto machines were weakened.
17-11-2022
One-time Pad Added menu to the various sections of the OTP page.
16-11-2022
Enigma at School Olin College website migrated, links interim by Internet Archive.
06-11-2022
SIGINT Chatter The Royal Navy Communications Branch Museum/Library

30-10-2022 KL-7 Tech & History Added links description and use KL-7 by British Royal Navy.
14-10-2022
KL-7 Tech & History Added motor-generator cross section and generator details.
14-10-2022
KL-7 Tech & History Drawing and text motor drive and timing unit enhanced.
06-10-2022
KL-7 Tech & History Details motor-generator versions and circuit speed control.

24-09-2022 KL-7 Tech & History Added diagram HL-1 tape reader and KLX-7 Keyboard adapter.
24-09-2022
KL-7 Tech & History Explained printing and sequence of characters on print drum.
10-09-2022
KL-7 Tech & History AFSAM-7 (KL-7) in White House Signals Det and Air Force One.
09-09-2022
KL-7 Tech & History Patent conflict Small vs Hagelin and related files in docs section.
03-09-2022
KL-7 Tech & History Patent issues and related files in documents section.
03-09-2022
KL-7 Tech & History Discussions release AFSAM-7 with Friedman, Sinkov, Small et al.

02-08-2022 SIGINT Chatter Joseph Helmich – The KL-7 for Cash Spy Case.
02-08-2022
KL-7 Tech & History FBI operation Hookshot & docs ASA analysis battle at Ia Drang.

27-07-2022 SIGINT Chatter History of the TSEC/KL-7 Documented.
21-07-2022
KL-7 Tech & History NSA doc use KL-7 by South Korea and Nationalist China.
21-07-2022
KL-7 Tech & History Added ASA analysis use of KL-7 by South Vietnamese Army.
21-07-2022
KL-7 Tech & History Added CIA/FBI history & more in CIA/FBI documents section.
19-07-2022
KL-7 Tech & History Added CIA report and FBI letters on AFSAM-7/KL-7.
19-07-2022
Technical Details Enigma Enhanced old wiring diagrams Enigma machine.
05-07-2022
KL-7 Tech & History Added NATO document KL-7 key list restrictions France.

26-05-2022 KL-7 Tech & History Expansion KL-7 in service, graphics and spy case.
26-05-2022
KL-7 Tech & History Crypto strength, compartmentalization vs "in depth" analysis.
02-05-2022
SIGINT Chatter Podcast Nuggets Episode 9 with four amazing interviews.

21-04-2022 Book Review The Third Reich Is Listening: Inside German Codebreaking 1939-45.
10-04-2022
Cold War Signals Added player controls to listen to audio samples.

31-03-2022 All pages Graphical improvements and rearrangements. Refresh pages!
22-03-2022
About this site Added readability tips to enlarge pages and font settings.
15-03-2022
Elite Box Challenge Announcing the Elite Box Challenge will start on March 18.
10-03-2022
KL-7 Tech & History Added several NATO documents related to the KL-7 crypto machine.

17-02-2022 Cipher Machines and Cryptology moved to new domain!
17-02-2022 Old website "http://users.telenet.be/d.rijmenants" definitively offline (see Internet Archive).
17-02-2022 Updates archive old website not available.

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Dirk Rijmenants 2004

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