Social Media Ideas for Cryptanalysis

Artificial intelligence cracks centuries-old ciphers

Measuring Human Cryptanalysis Effort

Matthew Green has a new site that tries to estimate the number of cryptanalyst-hours that have been spent analyzing different public-key algorithms: Abstract: We estimate how much...

What’s the tech behind the record-breaking RSA-260 crack?

A researcher’s social media post that revealed how to break part of a popular encryption protocol has gone viral. But did he really do it with just “good old paper and pencil”?

Anthropic’s Claude AI Uncovers Origins of NSA-Provided Cryptographic Keys After 25 Years

Anthropic says an internal Claude research model reconstructed how the National Security Agency generated seeds for five NIST elliptic curves in under 30 minutes, addressing a cryp...

Words, words, words...

Problem 8. «Crypto room» Read the words of one of the greatest cryptographers of our time. This is one of a set of problems from NSU crypto, and I have no idea what could be encr...

GPT-6 Astra Breaks an Old Enigma Message

This is pretty amazing: However, the most astonishing thing about this break is that the GPT­6 Astra did it entirely on its own. Carter Leffer only directed GPT­6 Astra to see if i...

Модель Claude Fable 5.1 за 44 минуты взломала шифр, над которым криптографы бились с 1653 года

Новая модель Claude Fable 5.1 от Anthropic нашла решение криптограммы XVII века шотландского писателя Томаса Уркхарта (Thomas Urquhart) за 44 минуты, разгадав шифр, который ставил...

Claude AI Cracks the NSA’s 25-Year Cryptography Seed Mystery

For 25 years, cryptographers suspected the NSA’s mysterious encryption seeds might conceal a backdoor. Anthropic’s Claude artificial intelligence (AI) cracked the puzzle in under 3...

Another Historic Cipher Falls to AI

This one is from 1809, written by Napoleon’s nephew.

Claude Fable Solves a Historical Cipher

Claude Fable 5.1 solved a 370-year-old cipher in forty-four minutes. This tracks with what I wrote about AIs doing mathematics: It’s good at things that involve lots of searching a...

There's a new way to break RSA that's faster than anything we've seen before

Until now, cryptographers thought factoring was the only way to break RSA. Not anymore.

Gossip on Cryptography: Part 3

In this blog, we will continue our discussion from the previous blog, Parts 1 and 2. If you have not read it, please read it once. So far, we have discussed Caesar cipher, Vigenere...

Claude AI Solves 25-Year NSA Cryptography Mystery in Just 30 Minutes

Anthropic says an internal Claude research model has traced the origins of five NSA-supplied elliptic curve seeds in under 30 minutes, answering a cryptography question that remain...

The Future of AI Cryptanalysis

Matthew Green has been writing a rather pessimistic series of posts about the potential for AI systems to vastly outperform humans in cryptanalysis of both symmetric and public-key...

New Attack Against RSA

ArsTechnica is reporting on a “new” attack against RSA, one that bypasses factoring. First, this attack isn’t new. The original research is from 2007. What is new is the implementa...

Cryptotremor: finding out when your encryption actually stops working

Every security team has the same question this October and almost nobody has the answer: when does the encryption in front of us actually stop working? Not "someday". There is a d...

Can AI break encryption? OpenAI’s new math has cryptographers divided

OpenAI’s bumper crop of 722 math papers wowed and worried the research community—and cryptographers are split over whether the algorithms that protect our texts and bank log-ins ar...

An AI cracked a 373-year-old cipher by noticing the key was hiding in the book itself

In 1653, Sir Thomas Urquhart, a Scottish writer and translator, published a book called Logopandecteision, an introduction to an artificial language that he had created. The end of...

Gossips on Cryptography: Part 4

In this blog, we will continue our discussion from the previous parts. If you have not read them, please read them first. Parts 1 & 2 – Caesar Cipher, Vigenere Cipher, Symmet...