Our company's core AI model, developed with immense time and cost, has been deployed worldwide, installed on thousands, even tens of thousands, of devices. What if someone opens a device and copies the entire memory, stealing the model?

Securing ML Model at the Edge with ARM TrustZone and TF-M

수많은 시간과 비용을 들여 개발한 우리 회사의 핵심 AI 모델이 수천, 수만 개의 디바이스에 설치되어 세상에 배포되었다. 누군가 기기를 열어 메모리를 통째로 복사해가 모델을 훔친다면?

ARM TrustZone and TF-M을 사용한 Edge에서의 머신러닝 모델 보호

(STM32MP2) ‘Hello World’ Encryption/Decryption in ARM Trustzone

TRX CTF 2025 - PWN - free the monsters (heap, exit_handler o.w.)

Rust Basic - async, await, Future, tokio, async-std

Pwnable - HITCON CTF 2014-stkof write-up

Pwnable - pwnable.kr - AEG

Rust Basic - crate, mod, use, panic!

Tornado Cash circom analysis

Rust Basic - String, Slice, Result, Option, unwrap, ? operator

Rust Basic - Ownership, References/Borrowing , Struct, Enum, Match

DLT(Distributed Ledger Technology)

Consensus Mechanisms(PoS, PoW, Byzantine Fault Tolerance)

mmap, munmap

ptmalloc2

PLT, GOT

동적 링크, 정적 링크

cdecl, sysv 함수 호출 규약

레지스터 용도와 시스템 콜

프로세스 메모리 구조

Password와 Hash

ARM Architecture의 모드, 레지스터

CVE-2024-33844

Angr code gagdet - 출력값으로 avoid/find 하기

Angr code gagdet - register로 initial state 정하기

Angr code gagdet - stack frame 형성하기

Angr code gagdet - memory에 벡터 변수 저장하기

Angr code gagdet - Dynamic memory allocation 구현하기

TFC CTF 2023 - diary

TFC CTF 2023 - easyrop

TFC CTF 2023 - notes

_IO_FILE을 이용한 Libc addr leak

 _IO_FILE Arbitrary Address Read

Imaginary CTF 2023 - ret2win

Imaginary CTF 2023 - ret2lose

Imaginary CTF 2023 - Perfect Picture

Imaginary CTF 2023 - Blank

zer0pts CTF 2023 - aush

zer0pts CTF 2023 - decompile me

Amateurs CTF 2023 - rntk

Amateurs CTF 2023 - latek

Amateurs CTF 2023 - permissions

CRYTO CTF 2023 - Did it!

CRYTO CTF 2023 - Suction

CRYTO CTF 2023 - blue office

Resume