From Cryptocellar · Frode Weierud, Crypto Cellar Research · · 1m 20s
Gpt-6 Astra Breaks 1941 Enigma Message
Gpt-6 Astra breaks 1941 German Enigma message without human intervention.
In brief
Gpt-6 Astra breaks 1941 German Enigma message without human intervention. Gpt-6 Astra independently cracked a 1941 German Army Enigma message that remained unsolved since 2005. Originally reported by Cryptocellar.
The MVUEH Break
On 15 September 2026, Carter Leffen contacted me to request validation of a break of the German Army Enigma message MVUEH of 10 July 1941.
Message Details
The message, sent by radio station 2ny, was received by ss-totenkopf quartiermeister ib at 17:30 on 10 july 1941 and logged as nr. 172.
Unsolved Since 2005
Since 2005, the message has resisted all attempts to break it, making it one of the most challenging enigma messages.
Previous Break Attempt
On 9 june 2017, alex shovkoplyas broke message nr. 173, sipvx, but the key differed slightly from the daily enigma key for 10 july 1941.
Key Differences
The mvueh key uses a different wheel order: 253 instead of 512, and the plaintext differs by twelve letters from sipvx.
Gpt-6 Astra Break
Gpt-6 astra independently broke the mvueh message using a repeated place name crib and developed enigma simulation software.
Bundesarchiv Discovery
Gpt-6 astra discovered german bundesarchiv radio message collections rs 3-3/20a and rs 3-3/63b through its analysis logs.
Professional Cryptanalyst
The ai break took two days, equivalent to weeks or months for a human researcher, demonstrating professional cryptanalytic skills.
The big picture
Gpt-6 Astra independently cracked a 1941 German Army Enigma message that remained unsolved since 2005.
