Portfolio · 2026

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AI Security Researcher & Creative Developer

#ProblemSolver#EarlyAdopter#CreativeDeveloper#ENTJ
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01 — About

Hello,I'mNahyun.

Ph.D. Student in Computer Science, researching at Hanyang University ACE Lab. I specialize in AI security and adversarial ML — attacking and defending AI systems.

On the side, I craft immersive web experiences and mobile apps.

Email ↗GitHub ↗Instagram ↗Blog ↗

At a glance

0

Patents

0

Papers

0+

Years

0+

Projects

Tech Stack

C/C++PythonJAVAJavascriptTypeScriptPyTorchTensorFlowscikit-learnReactNext.jsThree.jsNode.jsTailwindCSSReact Nativewav2vec2YOLOv5/v8DockerFigma

Certifications

TOPCIT 468

Software competency

2023

TEPS 329

English proficiency

2024

02 — Research

Publications&Patents.

←drag to explore→
01

AdvChameleon

Universal adversarial audio attacks that transfer across models & speech recognition systems.

Patent, In submission

#AudioAttack#AdversarialPatch
02

Anonimous Attack

A novel adversarial attack proposing a method to adjust perturbation intensity by exploiting temporal characteristics.

Patent, In Review

#VideoAttack#AdversarialAttack
03

ASR Survey

Comprehensive survey of adversarial attacks on automatic speech recognition systems.

KIPS ASK 2023

#Survey#ASR#Security
04

Firmware Security

Firmware signing & encryption system for secure embedded device authentication.

KIPS ASK 2022

#Firmware#Cryptography#IoT

03 — Projects

SelectedWork.

💽
01

SSD WAF Optimization

FEMU Blackbox FTL optimization via Hot/Cold data separation and Adaptive GC. Achieved 48% WAF reduction and 56% GC Overhead decrease.
CFEMUFTLSystemProgramming
🔍
02

Paperprobe

RAG-based academic paper Q&A system with multi-paper comparison, similarity graph visualization, and semantic prompt injection detection.
FastAPIChromaDBNext.jsD3.jsRAG
🐚
03

nsh> Nahyun Shell

Unix shell in C featuring multi-stage recursive pipes, I/O redirection, semicolon-sequenced commands, and arrow-key history navigation via termios raw mode with colored prompt and SIGINT handling.
CLinuxSystemProgrammingShelltermios
💻
07

Software Dev Practices

Collaborative project applying agile methodologies, automated CI/CD pipelines, and software engineering practices.
AgileCI/CDTesting
🔬
08

ACE Lab Website

Official website for Hanyang Univ. ERICA's AI & Cyber Security Lab — built with dark/light mode and Korean/English i18n, featuring lab news, publications, members, and album pages.
Next.jsTailwind CSSi18n

04 — Web & Games

InteractiveSideProjects.

01 / 04

Rise of Halfmoon

Rise of Halfmoon

Strategic moon phase card game. Match phases, create lunar cycles, and outsmart your opponent.

ReactGame LogicWeb

05 — Experiences

Awards&Exp.

Patent: Adversarial Example Generation

2025

특허) 시퀀셜 데이터를 처리하는 인공지능 모델에 대한 적대적 예제 생성 방법 및 이를 위한 컴퓨터 장치

Patent: Audio Misclassification

2025

특허) 배음 구조를 활용한 오디오 오분류 유도 방법 및 이를 위한 컴퓨터 장치

Program: Adjusting Perturbation Intensity

2024

프로그램 등록) 시간적 변화량을 활용한 섭동 강도 조정 적대적 공격

NRF Graduate Research Fellowship

2024

한국연구재단 이공분야 석사과정생 연구장려금 선정

Excellence Award — SW Startup Ideathon

2021

제7회 한양대학교 ERICA SW 창업 아이디어톤 우수상

Grand Prize — SW Startup Makerthon

2020

제2회 한양대학교 ERICA SW 창업 메이커톤 대상 - 🛵 Deli-Go (Delivery carpooling app)

Research Participant — SW Convergence R&D

2020

한양대학교 ERICA SW융합연구개발 과제 참여

Mentor — Science Gifted SW Hackathon

2020

대학부설 과학영재 교육원 SW 해커톤 대회 멘토 활동

06 — Writing

Thoughts&Articles.

Featured Series

● 3/10 진행 중

운영체제 Deep Dive

실제 Linux 커널 구현을 바탕으로 OS 핵심 개념 파헤치기

Progress30%
✓ 완결

양자컴퓨터 입문

큐비트부터 RSA 위협까지, 양자컴퓨팅의 기초와 보안 영향

Progress100%

Latest Posts

MasterKey - ASR 백도어 공격 분석

음성 인식 시스템 취약점을 이용한 백도어 공격 메커니즘

Security

VOAPI² - API 취약점 자동 테스팅

Voice API 보안 취약점 자동 검증 프레임워크

Security

HTLC와 Lightning Network의 핵심

Hash Time-Locked Contract로 보는 Layer 2 결제 메커니즘

Blockchain

Paperprobe: RAG 기반 논문 Q&A 시스템

LangChain + FAISS로 논문 읽기 자동화

Projects

Rise of the Half Moon: 달 위상 전략 게임

D3-Force 그래프 보드 + 3단계 AI 구현

Projects

Stack Tower: 3D 타이밍 게임

Three.js + Cannon.js 물리 엔진 최적화

Projects

AI 시대, 개발자에게 필요한 것

AI 도구 활용과 본질적 사고의 균형

Perspective

GitHub 프로필 README 꾸미기

깃허브 스탯, 뱃지, Solved.ac 프로필 활용법

Development