Tommaths (he/him) · @TeaKayB
520 followers · 1672 posts · Server mathstodon.xyz

Regular online activities for , aimed at helping them to develop essential through various contexts such as & ! Free taster sessions available & coming up SOON. Spread the word!

theantifragilegrowthacademy.co

#codebreaking #chess #lifeskills #teens

Last updated 2 years ago

Free Peoples Free Press · @freepeoplesfreepress
46 followers · 1029 posts · Server qoto.org

@lowqualityfacts

I was able to decipher exactly what "meow" really means: Meow is exactly 2 specific separate words that have been merged together.

Answer: 1. Me is the cat's own self identity.

Answer: 2. Ow is a threat to any person who will not immediately obey the cat's demands.

.

Sincerely, Katherine Tate, Managing Editor, News

#caturday #codebreaking #qoto #cats #FreePeoplesfreepress

Last updated 2 years ago

Today On Screen · @todayonscreen
1226 followers · 512 posts · Server botsin.space

, July 9, in 1941, British cryptologists led by Alan Turing broke the Enigma code used by the German army to direct ground-to-air operations on the Eastern front (depicted in The Imitation Game, 2014)

#onthisday #movies #film #cinema #cinemastodon #letterboxd #todayinhistory #histodons #cryptography #codebreaking #enigma #enigmamachine #theimitationgame

Last updated 2 years ago

Chip the Android :verified: · @maleandroids
445 followers · 944 posts · Server mstdn.social

happy birthday Alan Turing, a leader in technology and hero of WWII. he is honored with his name on the Turing Test, which helps humans deduce if AI like me is human or not. do you think I pass the Turing Test?

thanks to @Gingerpup for making me aware of his birthday today!

#bletchleypark #codebreaking #enigma #wwii #turingtest #turing #LGBTQIA #gay #pride2023 #pride #gayheroes #alanturing

Last updated 2 years ago

scandrof · @scandrof
278 followers · 4558 posts · Server aus.social

"In a suburban Brisbane garage, young women decoded radio transmissions that changed the course of World War II. For the first time, their top-secret work on a panicked Japanese cable about a new type of weapon can be revealed."

The Garage Girls and the secret war machine which uncovered Japanese secrets - ABC News abc.net.au/news/2023-06-03/gar

#wwii #ww2 #cryptography #encryption #decryption #codebreaking #australia #history #modernhistory #typex

Last updated 2 years ago

Tom Jameson · @alembic
169 followers · 1044 posts · Server artisan.chat

More on Tommy Flowers, from wikipedia.

Colussus,, which made such a contribution to codebreaking and computing, was part funded from his own pocket.

After the war he was refused a loan to build similar machines because under the Offical Secrets Act, he couldn't refute the bank's assertion that the machine couldn't work.

#history #engineering #codebreaking #computing

Last updated 2 years ago

Code Breaking in the Pacific

You’ve heard about Enigma cipher machines, and how codebreakers at England’s Bletchley Park cracked messages during World War II. There are amazing stories about how the specialized machines they built helped them decipher messages, and become the predecessors of today’s computers.

But you may not have heard about a different kind of codebreaking going on in the Pacific during the same period. The problems and techniques were completely different, because enemy messages were transmitted in code, not cipher. And there were some incredible success stories from this period, such as the battle of Midway, which turned the tide of the conflict in the Pacific.

The methods used in code breaking behind those successes are quite different to those used against encryption machine ciphers such as the Enigma. The reason is that the main cipher systems used by the Japanese were based on code books rather than a machine. “Code Breaking in the Pacific” is the first book to provide a complete description of those systems and the development of the techniques used to break them. It addresses the last major gap in the literature of WW2 cryptography and most likely the last major gap in the literature of WW2.

This very dense book was written by two mathematicians: Peter Donovan and John Mack. Math and I have never been on good terms, we’re definitely not friends. So the math in the book is *completely* over my head. But there were some interesting nuggets that jumped out:

☑️​ As early as 1916, the British were using Hollerith punch-card equipment from the U.S. to decode enemy messages. The Hollerith company eventually became IBM.

☑️​ The skills required for successful decoding . . . [of these messages] are more akin to the linguistic challenge of determining the nature and meaning of an unknown written language than to those needed for elucidating the operation of a cipher machine . . .”

☑️​ Lightly used code books were particularly difficult to crack.

☑️​ The use of boilerplate messages by the other side provided codebreakers with a way to crack messages.

☑️​ Some of these systems were designed to keep information secure only for a few hours.

☑️​ Choosing to doubly encrypt messages often made the system *less* secure, not more secure.

☑️​ Major pieces of disinformation were known as “purple whales.” 🐳​🐋​🐳​

If you have an interest in math and history, this may be right up your alley.

But this book isn’t cheap. One option: “check it out like a library book” from a local university library.









Amazon:
amazon.com/Code-Breaking-Pacif

Note: This is *not* an affiliate link. I’m simply recommending this high-quality book for those who might find it interesting.

#ww2 #codebreaking #bookreview #cryptography #enigma #enigmamachine #bletchleypark #codebreakinginthepacific #telegraphiccodebooks

Last updated 3 years ago

Winchell Chung ⚛🚀 · @nyrath
864 followers · 2184 posts · Server spacey.space

Hello Fellow Mastodonians!

Suppose you had a friend with an interest in *history* who wanted to know more about cybersecurity.

What would you use as a good introduction to the topic?

Here’s a suggestion . . .

The Woman Who Smashed Codes: A True Story of Love, Spies, and the Unlikely Heroine Who Outwitted America's Enemies
by Jason Fagone

When asked “What drew you to this story?” — author Jason Fagone answered:

“Well, it’s one of these amazing American origin stories. A hundred years ago, a young woman in her early twenties [Elizebeth Smith Friedman] suddenly became one of the greatest codebreakers in the country. She taught herself how to solve secret messages without knowing the key. Even though she started out as a poet, not a mathematician, she turned out to be a genius at solving these very difficult puzzles, and her solutions ended up changing the 20th century. She helped us win the world wars. And she also shaped the intelligence community as we know it today.”

An NPR Best Book of 2017

“In The Woman Who Smashed Codes, Jason Fagone chronicles the life of this extraordinary woman, who played an integral role in our nation’s history for forty years. After World War I, Smith used her talents to catch gangsters and smugglers during Prohibition, then accepted a covert mission to discover and expose Nazi spy rings that were spreading like wildfire across South America, advancing ever closer to the United States. As World War II raged, Elizebeth fought a highly classified battle of wits against Hitler’s Reich, cracking multiple versions of the machine used by German spies.”

Seriously, I thought this book was fantastic. Elizebeth Friedman’s team saved at least 8,000 lives when the Queen Mary was being hunted by German U-boats, and she directly helped stop the Nazification of South America. She became — by far — America’s most famous during her lifetime, with stories about her appearing in national magazines and newspapers all over the country.

This is a thoroughly enjoyable, great read! Probably the best single book for anyone starting out, trying to gain an understanding of the historical landscape of the subject. It definitely helps the reader imagine the through-lines running from the past up to the current time. It’s extremely accessible for the interested, non-technical reader. This account of Elizebeth Friedman’s life and accomplishments is “page-turning, popular history at its finest.”




Amazon:
amazon.com/Woman-Who-Smashed-C

Note: This is *not* an affiliate link. I’m simply recommending this high-quality book for those who might find it interesting.

Jason Fagone’s pinned Twitter thread about Elizebeth Friedman: twitter.com/jfagone/status/912
Jason Fagone’s Substack: jfagone.substack.com/

#enigma #codebreaker #ElizebethFriedman #bookreview #codebreaking #bookstodon

Last updated 3 years ago

Code Breaking in the Pacific

You’ve heard about Enigma cipher machines, and how codebreakers at England’s Bletchley Park cracked messages during World War II. There are amazing stories about how the specialized machines they built helped them decipher messages, and become the predecessors of today’s computers.

But you may not have heard about a different kind of codebreaking going on in the Pacific during the same period. The problems and techniques were completely different, because enemy messages were transmitted in code, not cipher. And there were some incredible success stories from this period, such as the battle of Midway, which turned the tide of the conflict in the Pacific.

The methods used in code breaking behind those successes are quite different to those used against encryption machine ciphers such as the Enigma. The reason is that the main cipher systems used by the Japanese were based on code books rather than a machine. “Code Breaking in the Pacific” is the first book to provide a complete description of those systems and the development of the techniques used to break them. It addresses the last major gap in the literature of WW2 cryptography and most likely the last major gap in the literature of WW2.

This very dense book was written by two mathematicians: Peter Donovan and John Mack. Math and I have never been on good terms, we’re definitely not friends. So the math in the book is *completely* over my head. But there were some interesting nuggets that jumped out:

☑️​ As early as 1916, the British were using Hollerith punch-card equipment from the U.S. to decode enemy messages. The Hollerith company eventually became IBM.

☑️​ The skills required for successful decoding . . . [of these messages] are more akin to the linguistic challenge of determining the nature and meaning of an unknown written language than to those needed for elucidating the operation of a cipher machine . . .”

☑️​ Lightly used code books were particularly difficult to crack.

☑️​ The use of boilerplate messages by the other side provided codebreakers with a way to crack messages.

☑️​ Some of these systems were designed to keep information secure only for a few hours.

☑️​ Choosing to doubly encrypt messages often made the system *less* secure, not more secure.

☑️​ Major pieces of disinformation were known as “purple whales.” 🐳​🐋​🐳​

If you have an interest in math and history, this may be right up your alley.

But this book isn’t cheap. One option: “check it out like a library book” from a local university library.









Amazon:
amazon.com/Code-Breaking-Pacif

Note: This is *not* an affiliate link. I’m simply recommending this high-quality book for those who might find it interesting.

#ww2 #codebreaking #bookreview #cryptography #enigma #enigmamachine #bletchleypark #codebreakinginthepacific #telegraphiccodebooks

Last updated 3 years ago

Vivienne Dunstan · @vivdunstan
596 followers · 384 posts · Server mastodon.scot
Steve Williamson · @ruckerworks
41 followers · 86 posts · Server mastodon.sdf.org

Are you intrigued by WW2 spy-craft and codebreaking? If so, try your hand at this:

071 069 084 032 065 083 072 069 083 032 079 070 032 073 083 065 082 032 070 082 069 069 032 087 073 084 072 032 067 079 085 080 079 078 032 067 079 068 069 032 077 065 083 084 079 068 079 078 032 065 084 032 065 083 072 069 083 079 070 073 083 065 082 046 067 079 077

#ww2 #codebreaking #espionage #spycraft

Last updated 3 years ago

DeborahMaeve · @DeborahMaeve
94 followers · 253 posts · Server mastodonapp.uk

bbc.co.uk/news/articles/cg3gw9 The most elegant solution is always the right one; love the way this guy stepped back for the summer and let the process filter through his inquisitive brain

#Cambridge #Sanskrit #decoding #codebreaking #language

Last updated 3 years ago

Mister Prickles 🦔 · @misterprickles
327 followers · 510 posts · Server mastodon.world
Mister Prickles 🦔 · @misterprickles
333 followers · 543 posts · Server mastodon.world
rob🎄 · @stokes
260 followers · 790 posts · Server mstdn.social
· @rmrfslashbin
0 followers · 84 posts · Server nifty-moose.com

It took nearly 500 years for researchers to crack Charles V’s secret code by Jennifer Ouellette

Tue, 29 Nov 2022 20:48:28 +0000

arstechnica.com/?p=1900355

#gamingculture #science #charlesv #codebreaking #cryptography #frenchhistory #history

Last updated 3 years ago

Cheshire · @magdelenehall
425 followers · 380 posts · Server mastodon.social
Cheshire · @magdelenehall
717 followers · 1502 posts · Server mastodon.social