Top products from r/codes

Here are some resources I've found especially helpful for my own puzzle making and codebreaking endeavors.

General Overviews and Websites:

• Cryptography - Wikipedia
  
  
• Classical cipher - Wikipedia
  
  
• Cryptanalysis- Wikipedia
  
  
• Steganography - Wikipedia
  
  
• Ryan Riley's "Introduction to Basic Cryptography" series - Youtube: 1, 2, and 3 (plus several others, just look through his channel)
  
  
• The American Cryptogram Association
  
  
• Practical Cryptography
  
  
• Elonka.com
  
  
• The Black Chamber
  
  Basic Cryptanalytic Techniques:
  
  
• Frequency Analysis - Wikipedia
  
  
• Coincidence Counting - Wikipedia
  
  
• Kasiski Examination - Wikipedia
  
  Beginner hand-cracking tutorials:
  
  
• How to Solve a Cryptogram - Puzzlebaron.com
  
  
• Vigenère decryption with unknown key - Youtube
  
  Tools for creating and cracking codes quickly:
  
  
• Rumkin Cipher Tools
  
  
• dCode Crypto Tools
  
  
• Quipqiup Crytogram Solver
  
  
• Cryptii Tools
  
  
• Guballa Vigenere Solver
  
  
• Boxentriq Code-Breaking Tools
  
  Interesting cryptographic puzzles for inspiration:
  
  
• World's Greatest Unsolved Ciphers (Craig Bauer), Part 1 and Part 2
  
  
• Cicada 3301: LEMMiNO Documentary; Great Big Story Documentary Series
  
  
• Kryptos: Great Big Story Feature; Cracking Kryptos (Elonka Dunin)
  
  Books:
  
  While I haven't read these, I've heard a lot of good things about them:
  
  
• Cryptanalysis: A Study of Ciphers and their Solution, by Helen F. Gaines
  
  
• The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography, by Simon Singh
  
  
• The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet, by David Khan
  
  EDIT: Tweaked some wording and formatting

Some pretty good reads on the subject:

Top Secret: A Handbook of Codes, Ciphers and Secret Writing https://www.amazon.com/dp/0763629723/ref=cm_sw_r_awd_WF1Dub0WN55RY

The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography https://www.amazon.com/gp/aw/d/B004IK8PLE/ref=aw_ss_kndl_dp/

Codebreaker: The History of Codes and Ciphers https://www.amazon.com/dp/0802715478/ref=cm_sw_r_awd_OH1Dub103RXB7

And, believe it or not,

Cracking Codes and Cryptograms For Dummies https://www.amazon.com/gp/aw/d/B005CB22A8/ref=aw_ss_kndl_dp/

You also might check your local newspaper for "Cryptoquote." It's a daily quote that uses a different cipher each day. Great for practice!

I'm the same age as your daughter.

Some months ago, I read The Code Book: How to Make It, Break It, Hack It, Crack It. It's an adaption of another book by the same writer for young people. I found it great and I strongly recommend it.

If you're looking for a book that teaches you about codes and practical codebreaking, here are two greats: Cryptanalysis: A Study of Ciphers and Their Solution, by Helen Fouché Gaines and Codes, Ciphers and Secret Writing, by Martin Gardner.

For a historical look try The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography, by Simon Singh. I really loved that one!

Well, that means that the author has access to 5 separate editions, which I would think should be difficult to obtain. But, you're right that the 11th Edition is freely available online. A replica of the first edition can be purchased for nearly $200, but there's no guarantee it has the same number of pages as the original. I couldn't find anything about the third, fourth, or fifth editions.

The 15th edition is 32-volumes, so it seems like only using 5 of them would have been an underutilization of the resource. I'm also not sure if page numbers are continuous across volumes. It doesn't look like this is the case, since Volume II of the eleventh edition begins on page 1.

There's no modern cryptanalysis in it, but Cryptanalysis: A Study of Ciphers and Their Solution is a great book. I still reference it.

For what I can tell, it should be GD. They made an error. Not terribly uncommon. I made one in a geocache challenge and I was left wondering why nobody could find it. There is an excellent book on cryptography called "Codebreakers" that had a really fun cipher challenge but he goofed on the PKE and made it basically impossible to solve.

I would recommend reading Simon Singh's The Code Book. It acts as a basic introduction to the history of cryptography from the distant past to what we can expect in the future. It also has various examples and challenges of encrypting, decrypting, and crypto analyzing classical ciphers. It is one of my favorite books.

William F. Friedman wrote 3 books on crypto that the NSA has declassified. These should be quite valuable to you:

• Volume 1
  
  
• Volume 2
  
  
• Volume 3
  
  EDIT: Check out Military Cryptanalytics too.

I found the site, here are some first observations

• 12 32 35 21 24 from 0001.txt gives you a five-number sequence which could be related to your 5 x 5 grid puzzle
  
• Paul's address 80 E. 11th Street in NYC is a real address of a building called the St. Denis. Furthermore, on the outside of that building is R O L A N D ... one huge letter in each of six windows. Probably not a coincidence, it may be that ROLAND is needed somewhere in this game
  
• The telephone numbers of Jonah, Elias, Paul, and Hermann are actually ISBN-13 numbers of science fiction books by Isaac Asimov. I was looking to see if they are real phone numbers in a certain nation, then realized they are not, they are ISBN, and searching each number yields an Asimov book
  
• 0553803735 = Second Foundation (Jonah's telephone number)
  
• 0553803700 = I, Robot (Elias' telephone number)
  
• 0553803719 = Foundation (Paul's telephone number)
  
• 0553803727 = Foundation And Empire (Hermann's telephone number)

It's about a man who goes crazy after his wife dies under mysterious circumstances. It's a mystery on the surface but you'll find more red herrings than reality. Also a crazy dentist who sees worms in the teeth of infants. (Sadly no uttchuktes are involved.) Since you asked, here's a link. Also likely found at a big-enough library near you.

Thanks for asking! I don't want to seem advertorial but I have some extra copies I could send people who come close to a solve if anyone's interested.

Suggest to the guy to read "The Codebreakers" by David Kahn (that's Kahn, not Khan).

Strongly recommended for anyone interested in ciphers and cryptology. If it's over his head, start with any kid's level book on ciphers and work your way up.

https://www.amazon.com/Codebreakers-Comprehensive-History-Communication-Internet/dp/0684831309?SubscriptionId=AKIAILSHYYTFIVPWUY6Q&tag=duckduckgo-d-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=0684831309

My favourite book for beginners is The Code Book by Simon Singh

This puzzle book from last year was written by the staff of GCHQ who know a thing or two about codes.

"Assassin's Apprentice (The Farseer Trilogy, Book 1)", by Robin Hobb.

https://www.amazon.com/Assassins-Apprentice-Farseer-Trilogy-Book/dp/055357339X

When I first saw this article from bloomberg.com, its title was:
> Bloomberg - Are you a robot?

Here are some other articles about this story:

• arstechnica.com: Apple CEO Tim Cook calls on Bloomberg to retract its Chinese spy story
  
• foxbusiness.com: Apple CEO Tim Cook calls on Bloomberg to retract spy chip story
  
• pcmag.com: Tim Cook Demands Bloomberg Retract Chinese Spy Chip Story
  
• zdnet.com: Tim Cook calls for Bloomberg to retract controversial chip story | ZDNet
  
• bbc.com: Apple boss calls for chip story retraction
  
• bgr.com: Tim Cook calls on Bloomberg to retract story of alleged Supermicro hack
  
• cnbc.com: Apple's Tim Cook calls for retraction on Chinese spy chip story: 'There's no truth to this'
  
• cyberscoop.com: Coats: ODNI has seen 'no evidence' of supply chain hack detailed in Bloomberg story - CyberScoop
  
• appleinsider.com: Tim Cook lambastes Bloomberg for iCloud spy chip report, calls for retraction
  
• newsweek.com: Has China been conducting a mass spying campaign on the U.S.?
  
• cnet.com: Tim Cook wants Bloomberg to retract its spy chip story
  
• marketwatch.com: Apple CEO Tim Cook calls for retraction of hacking story
  
• buzzfeednews.com: Apple CEO Tim Cook Is Calling For Bloomberg To Retract Its Chinese Spy Chip Story
  
• thehill.com: Apple's Tim Cook asks Bloomberg to retract Chinese hacking story
  
• wfaa.com: Apple CEO Tim Cook calls for Bloomberg to retract its Chinese spy chip story
  
• apple.com: What Businessweek got wrong about Apple
  
• businessinsider.com: Apple CEO Tim Cook demands Bloomberg retract its report on Chinese chip hacking: 'There is no truth in their story'
  
• nasdaq.com: Apple CEO urges Bloomberg to retract spy chip story
  
• postbulletin.com: Tim Cook wants retraction of Chinese spy-chip story that named Apple, Supermicro
  
• azcentral.com: Apple CEO Tim Cook calls for Bloomberg to retract its Chinese spy chip story
  
• qz.com: Tim Cook publicly denies Apple was hacked by China’s military
  
• engadget.com: Apple CEO calls on 'Bloomberg' to retract China surveillance report
  
• seattletimes.com: Tim Cook wants retraction of Chinese spy-chip story that named Apple, Amazon, Supermicro
  
• usatoday.com: Apple, Amazon deny Chinese spy chips found in server hardware
  
  -----
  
  I am a bot trying to encourage a balanced news diet.
  
  These are all of the articles I think are about this story. I do not select or
  sort articles based on any opinions or perceived biases, and neither I nor my
  creator advocate for or against any of these sources or articles. It is your
  responsibility to determine what is factually correct.