The Combined Cipher Machine
Interesting article—with photos!—of the US/UK “Combined Cipher Machine” from WWII.... https://www.schneier.com/blog/archives/2025/03/the-combined-cipher-machine.html
#historyofcryptography #Uncategorized #cryptography #military
Long Analysis of the M-209
Really interesting analysis of the American M-209 encryption device and its security.... https://www.schneier.com/blog/archives/2024/09/long-analysis-of-the-m-209.html
List of Old NSA Training Videos
The NSA’s “National Cryptographic School Television Catalogue” from 1991 lists about 600 COMSEC and SIGINT training videos.
There are ... https://www.schneier.com/blog/archives/2024/09/list-of-old-nsa-training-videos.html
#historyofcryptography #historyofsecurity #Uncategorized #cryptography #videos #FOIA #NSA
On the Voynich Manuscript
Really interesting <a href="https://www.theatlantic.com/magazine/archive/2024/09/decoding-voynich-manuscript/679157/?gift=YFkW3a8mqv4T0YBMneIYIuIiYZJAqQJorEylZzhFIOw&utm_source=copy-link&utm_medium=social&utm_campaign=share&fbc... https://www.schneier.com/blog/archives/2024/08/on-the-voynich-manuscript.html
#historyofcryptography #academicpapers #Uncategorized #cryptanalysis
Breaking the M-209
Interesting paper about a German cryptanalysis machine that helped break the US ... https://www.schneier.com/blog/archives/2024/06/breaking-the-m-209.html
#historyofcryptography #academicpapers #Uncategorized #cryptanalysis #cryptography
Rare Interviews with Enigma Cryptanalyst Marian Rejewski
The Polish Embassy has posted a series of short interview segments with Marian Rejewski, the first person to crack the Enigma.
Details from his <a href="https://www.flyingpenguin.com/?p=4... https://www.schneier.com/blog/archives/2024/05/rare-interviews-with-enigma-cryptanalyst-marian-rejewski.html
#historyofcryptography #Uncategorized #cryptanalysis #Enigma #war
Whale Song Code
During the Cold War, the US Navy tried to make a secret code out of whale song.
The basic plan was to develop coded messages from rec... https://www.schneier.com/blog/archives/2024/04/whale-song-code.html
Declassified NSA Newsletters
Through a 2010 FOIA request (yes, it took that long), we have copies of the NSA’s KRYPTOS Society Newsletter, “Tales of the Krypt,” from 1994 ... https://www.schneier.com/blog/archives/2024/04/declassified-nsa-newsletters.html
#historyofcryptography #AppliedCryptography #historyofsecurity #Uncategorized #FOIA #NSA
David Kahn
David Kahn has died. His groundbreaking book, The Codebreakers was the first ... https://www.schneier.com/blog/archives/2024/02/david-kahn.html
New Images of Colossus Released
GCHQ has released new images of the WWII Colossus code-breaking computer, celebrating the machine’s eightieth anniversary (birthday?).
News <a href="https://arstechnica.com/gadget... https://www.schneier.com/blog/archives/2024/01/new-images-of-colossus-released.html
New Images of Colossus Released https://www.schneier.com/blog/archives/2024/01/new-images-of-colossus-released.html #historyofcryptography #Uncategorized #cryptography
historische #Kryptografie in textilem Gewand - ein Kleid, das einen Code verbirgt:
https://www.atlasobscura.com/articles/secret-note-victorian-dress
GCHQ Christmas Codebreaking Challenge
Looks like fun.
Details here.... https://www.schneier.com/blog/archives/2023/12/gchq-christmas-codebreaking-challenge.html
GCHQ Christmas Codebreaking Challenge https://www.schneier.com/blog/archives/2023/12/gchq-christmas-codebreaking-challenge.html #historyofcryptography #Uncategorized #cryptanalysis #GCHQ
Mary Queen of Scots Letters Decrypted
This is a... https://www.schneier.com/blog/archives/2023/02/mary-queen-of-scots-letters-decrypted.html
#historyofcryptography #Uncategorized #cryptography #encryption
Mary Queen of Scots Letters Decrypted https://www.schneier.com/blog/archives/2023/02/mary-queen-of-scots-letters-decrypted.html #historyofcryptography #Uncategorized #cryptography #encryption
Charles V of Spain Secret Code Cracked
Diplomatic code cracked after 500 years:
In painstaking work backed by computers, Pierrot found “disti... https://www.schneier.com/blog/archives/2022/11/charles-v-of-spain-secret-code-cracked.html
#historyofcryptography #Uncategorized #cryptanalysis #encryption #Spain
Charles V of Spain Secret Code Cracked https://www.schneier.com/blog/archives/2022/11/charles-v-of-spain-secret-code-cracked.html #historyofcryptography #Uncategorized #cryptanalysis #encryption #Spain
