abhrankan chakrabarti

security engineering·systems programming·computational mathematics

I build small, focused tools for problems I find interesting — from encrypted Unix pipelines and terminal security utilities to number-theory libraries, packet monitoring, and mathematical visualizations. My work sits at the intersection of security engineering, systems programming, cryptography, algorithms, and computational mathematics.

Security should not require complexity.

fox-hackerz

An open-source collection of security tools and developer utilities

I maintain Fox Hackerz, built around a simple philosophy: clarity over cleverness, reliability over hype, security over shortcuts.

  • FoxPipe
    End-to-end encrypted Unix pipes using a PAKE-based protocol designed to provide forward secrecy.
  • foxkey
    Minimalist encrypted terminal TOTP manager using Argon2id and ChaCha20-Poly1305.
  • stegofox
    Encrypted PNG steganography CLI using LSB embedding.
  • ebpf-visualizer
    Real-time XDP/eBPF packet monitoring with kernel-level capture and userspace visualization.
  • remote-exec-server
    Minimal HTTP-based remote execution server/client built around a BusyBox-style interface.

computational-mathematics

Software for exploring mathematical structures computationally

  • foxpi
    A high-precision terminal π explorer implementing Chudnovsky, Ramanujan, Machin, and BBP methods.
  • number-theory
    An exact Python number-theory library covering Bernoulli numbers, Euler zigzag numbers, ζ(n), and prime-based computation of π.
  • pari-gp-scripts
    Terminal-friendly scripts for computational number theory — primes, zeta functions, the Collatz sequence, partitions, and other classical problems.

I also enjoy turning mathematical structures into things that can be explored visually — Collatz trajectories, prime distributions, fractals, and integer factorization.

other-work

Other things I explore

  • Cryptographic systems and secure file handling
  • Network programming and packet analysis
  • Remote execution and automation
  • Numerical algorithms
  • Prime numbers and number theory
  • Mathematical visualization
  • Local AI and LLM tooling
  • WebAssembly and high-performance browser computation

tech

languages

PythonRustGoCC++BashJavaScript

security & cryptography

AES-GCMChaCha20-Poly1305Argon2idSPAKE2X25519HMACPBKDF2

systems & networking

LinuxUnixTCP/IPeBPF/XDPHTTPNetwork Protocols

mathematics & computing

Number TheoryNumerical MethodsAlgorithmsScientific ComputingHigh-Precision Arithmetic

find-me

currently

Exploring the space where security engineering, systems programming, mathematics, and open-source software overlap.

Build something useful.
Understand how it works.
Then make it simpler.