Enigma cryptanalysis
Testing which algebraic constraints recover rotor wirings exactly—and where twist and spin ambiguities survive.
I like staying with difficult questions.
I move between mathematics, computation, and engineering—trying to understand why complex systems behave the way they do.
I’m Aaditya Shah, a second-year B.Tech student in Computer Science and Engineering at IIT Gandhinagar, graduating in 2029.
Current questions
CryptographyHow can hidden structure be recovered from incomplete evidence?
Start here
Choose a place to begin.
You do not need to understand the whole system at once. Begin with the part that interests you.
01
Questions I’m following
Open problems, reading paths, and ideas still taking shape.
Explore questions 02Investigations I’ve built
Research and engineering framed by the question that started them.
See the investigations 03Notes from the work
Field reports, technical notes, and reflections from the middle of the work.
Read the notesRight now Updated August 2026
A few things currently occupying my mind.
I have a habit of turning “I’ll read about this for an hour” into a much longer investigation. These are the threads getting most of that attention at the moment.
Quantum foundations
Working through the mathematics behind quantum computation before treating its vocabulary as understanding.
Algorithms, properly
Learning the ideas beneath implementation without accidentally turning one semester into an independent algorithms degree.
Design through building
Making interactive systems for Blithchron and learning how technical work changes when it belongs to a team.
Current threads
Questions I am following.
Q.01
When does incomplete evidence determine hidden structure?
Enigma indicators reveal strong algebraic constraints, but reconstruction can stop at rotor-order, twist, or spin ambiguities. I am studying which observations and exact-twist conditions turn those constraints into a verified recovery.
Q.02What makes a quantum advantage structurally possible?
I want to understand quantum computation beyond its vocabulary: which mathematical structures make a genuinely different kind of algorithm possible?
Q.03Could quantum computation eventually explain the workings of the brain?
A far-reaching question about whether quantum computation could eventually illuminate cognition in depth. For now, it is speculative and remains a reading direction rather than an active research claim.
One investigation
A question carried into practice.
I.01 / continuing
Recovering hidden structure from the Enigma
Can the machine's internal wiring be recovered from intercepted messages without relying on historical clues?
An ongoing study of how permutation equations from intercepted Enigma indicators can recover rotor wirings, twists, and the limits of those methods.
Latest note
From the notebook.
A first year of changing direction
A reflection on entering IIT Gandhinagar in Mechanical Engineering, moving into CSE, and finding direction through research, projects, and people.
Read all notes →