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BiCSL — Bitbang Computer Science Lab
BiCSL — Bitbang Computer Science Lab

From signals to systems.

BiCSL studies computers from the bottom up: where signals become bits, and bits become systems. We build it, measure it, then explain it.

Browse publicationsAbout the lab
Researchers
2
Open records
2
Active projects
1
Downloads
1

Research areas

We work across the stack — wherever bits meet physical hardware, and wherever that boundary decides performance, cost and safety.

All projects

Computer Architecture

Data flow, parallel hardware and the von Neumann bottleneck, tested on boards we build and measure ourselves.

Systolic arraysMemory systemsParallel hardwarePCB design

Hardware & Side-Channel Security

What leaks through physical signals, and how to draw trustworthy randomness from physical noise.

Side channelsTRNGEmbedded systemsSignal processing

AI Security

How machine-learning systems fail when their training data or their agents cannot be trusted.

Data poisoningBackdoorsAgent security

Programming Languages

Language design and compilers, from the lexer down to code generation.

Language designCompilersIRRust

Open science by default

Every paper, dataset and artifact — archived, versioned and citable.

The BiCSL repository gives each upload a persistent record with files, checksums, licenses and version history. Export citations in BibTeX, APA or IEEE, or pull metadata straight from the JSON API.

GET /api/records?format=bibtexv1 → v2
Open the repositoryUpload
bicsl — cite
# export a citation for any record
$ curl bicsl.kro.kr/api/records/2/export?format=bibtex

@misc{bang2026implementing,
  author    = {Bang, Jeonghoon},
  title     = {{Implementing Logic Gates with Acid–Base Neutralization: Focusing on the Reproduction of the XOR Gate}},
  year      = {2026},
  month     = {11},
  version   = {v1.0},
  url       = {https://bicsl.kro.kr/publications/2},
  keywords  = {logic gate, neutralization, litmus, electrical conductivity, XOR, perceptron, signal restoration}
}

Recent publications

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Projects

Long-running efforts where we build real systems, release them openly, and measure what matters.

All projects
ActiveAug 2026 – present

KDAA: Korean Dubeolsik Acoustic Attack

An acoustic side-channel attack that reconstructs Korean text from Dubeolsik keystroke sounds, using an embedded CNN and a server-side jamo composition model.

acoustic side-channel attackkeystroke inferenceKorean input

People

The people behind BiCSL.

Jeonghoon Bang방정훈

Lab Lead

AI · ML · CS

Seojun Kim김서준

Engineer

Orphan · gay · bysexual computing.

Meet the team

From the blog

All posts
Research

Why we’re called Bitbang

Four Arduino Nanos, two wires per link, and a matrix multiplication that ran about 300 times slower than on one board. Our name comes from the code that cost us that time.

by Jeonghoon Bang

Join BiCSL

Like to understand systems end to end, and to build them? We would like to hear from you.

Get in touch