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iabhi92/README.md

Abhinav Kumar

BUILD BREAK DEBUG SHIP

typewriter: security engineer / backend developer / crypto built from scratch / breaking RSA on real IBM quantum hardware / end-to-end encrypted by default

Profile views Portfolio crackrsa

$ whoami

Security/backend engineer who builds crypto and security tooling from scratch — then ships it as products people can actually use.

AES-256-GCM PBKDF2-SHA256 · 600k iters Shor's algorithm IBM quantum hardware

  • Runs crackrsa.com — a live demonstration of quantum computing breaking RSA, powered by a real IBM quantum machine.
  • Built Haven — an end-to-end-encrypted task app that is genuinely private by default.
  • Real-world team experience from an iSoft internship.

$ ls ~/projects

project what it is
Haven Local-first task app with genuine privacy: every task is AES-256-GCM encrypted client-side (key derived via PBKDF2-SHA256, 600k iterations) before it ever touches the network. No account. Works offline.
crackrsa.com RSA built from scratch — classical factoring attacks, a real quantum simulator, and a live IBM quantum hardware run showing why (and when) quantum computing breaks RSA.
Ledger Lite Minimal double-entry bookkeeping for a small business: chart of accounts, invoices, expenses, and full financial reports. A free/cheap SAP alternative — Flask + SQLite.
iabhi92.online Security portfolio — the work above, written up in full.

$ cat stack.txt

Python C C++ Java JavaScript React FastAPI Flask SQLite Qiskit Git

$ ./gh-stats

profile activity languages commit languages

$ ./snake

animated contribution snake

$ connect

GitHub Portfolio Haven crackrsa

// keep shipping.

Pinned Loading

  1. Crypto-Project Crypto-Project Public

    HTML

  2. haven-tasks haven-tasks Public

    Free, browser-based, local-first, end-to-end encrypted task app

    JavaScript

  3. iabhi92.github.io iabhi92.github.io Public

    Security portfolio – Attack / Detect

    HTML

  4. ledger-lite ledger-lite Public

    Minimal double-entry bookkeeping for a small business — free/cheap SAP alternative

    HTML

  5. shors-rsa-cracker shors-rsa-cracker Public

    From-scratch RSA, classical factoring attacks, a real quantum simulator, and a live IBM quantum hardware run demonstrating why (and when) quantum computing breaks RSA.

    TypeScript

  6. tasktracker tasktracker Public template

    Python