Technical coverage

WebAssembly

WebAssembly is an most evolved technology based on a bytecode. I started the AsmNEXT. I’m very interested in solving issues in embedded systems and ICS using WebAssembly (also known as WASM). My efforts toward this goal include participating in and running WebAssembly communities like AsmNEXT team to research it at January 2022.

Web Standards

I worked for government agencies and social enterprises, NGOs, DDA/WCAG interested compliance groups, and SEO-based marketing firms. I am interested in the standards of HTML and CSS.

Machine code

I have encountered cases such as WebAssembly(WASM), JavaScript, MSIL, P-Code(VBA), x86, x64, ARM, MIPS assembly, Java Bytecode, Dalvik Bytecode(Android), Industrial IL, LLVM, and the customized virtual machine code.

NLP

I have conducted a study on the interconversion of natural language and pseudo-code (Like an IR code, Bytecode) for cybersecurity industry.

Computer Vision

I have extensive experience in the field of computer vision, including real-time object tracking, real-time labeling, characters detection (OCR), and thermal imaging detection (integrating sensors and optical equipment).

Live e-commerce

The open-source project utilizing JavaScript for system programming (e.g., WelsonJS, Caterpillar Proxy) is gaining attention from various e-commerce companies employing live broadcasting.

Cybersecurity

I have the capability to analyze incidents such as malware by encompassing experience in machine code, bytecode, networks, and infrastructure.

Networks

I am capable of handling complex network requirements on both Windows and Linux, and I have experience in debugging networks, as well as developing and commercializing TCP, UDP and HTTP proxies.

Achievements

Awarded prize

  • Dec 2023, Gold prize, 2023 Opensource Developer Contest, National IT Industry Promotion Agency
  • Dec 2020, Excellence prize, Healthcare data use-case and idea contest, Korea Health Information Service (Foundation)
  • Dec 2019, Association prize, Venture Incheon 2019, Incheon Venture Company Association
  • Sep 2019, Participation prize, Korea Clinical Datathon, Korea National Enterprise for Clinical Trials
  • Sep 2019, Bronze prize, Software competition, Korea National Open University
  • Nov 2018, Participation prize, DoraHacks Hackathon, DoraHacks
  • Oct 2018, Participation prize, 'Welcome to maker world' competition, Korea Economic Daily
  • Aug 2018, Participation prize, 'Happy National Idea' competition, Uiseong-gun District Office(Gyeongsangbuk-do, Republic of Korea)
  • Jun 2018, Bronze prize, KISA-NHBank-TheLoop Blockchain Hackathon, Korea Internet & Security Agency
  • Sep 2016/2017, Participation prize, Software competition, Korea National Open University
  • Mar 2016, Grand prize, Airport service improvement proposal competition, Incheon International Airport
  • Jan 2016, Selected company, Social Enterprise Grow-Up Program, Namdong-gu District Office (Incheon Metropolitan City)
  • Sep 2014, Bronze prize, Polytechnic project competition, Korea Polytechnic 2 Incheon Colleage

Study

  • 2020, Design and application of the IoT security threat pre-detection procedure based on power quality metering, Korea Society for Internet Information
  • 2016, A study on compress behavior information and compare similarity of malicious code via natural language processing, Korea Association of Information Systems
  • 2016, A study on enhance flash memory performance and digital evidence analysis using LKM in android devices, Korea Association of Information Systems
  • 2016, A study on finding correlation between IoT and signal intrusion, Korea Society of Computer Information
  • 2016, Attack of downloader vulnerability using SD card of Android, Korea Association of Information Systems
  • 2016, Classification and Allocation method of e-mail using possibility distribution and prediction, Korea Society of Computer Information
  • 2016, Event Inspection Technique for the advancement of Application Accessibility, Korean Institute of Communication Sciences
  • 2016, A Code Concealment Method using Java Reflection and Dynamic Loading in Android, Korea Institute of Information Security & Cryptology
  • 2015, Java Automatic Identifier Renaming Technique and Protection Method, The Journal of the KICS
  • 2014, Code Obfuscation using Java Reflection and Exception in Android, Korea Society of Computer Information

Media

  • Apr 2022, "The AsmNext Team in South Korea joined Bytecode Alliance", Boannews (Korean Security News)
  • Sep 2019, "Exclusive Interview: Our future goal is we're going to part of a new standard of the web accessibility", IssueMaker
  • Jun 2018, "KISA and NH Bank, Held the 'Fintech X Blockchain' hackathon", IT Chosun
  • Jun 2016, "Incheon International Airport, Held the award for those who publish a proposal to improve airport service", Incheon Daily/Joongbu Daily
  • Dec 2011, "The attacker launched the campaign to distribute malware on the digital camera forum website in South Korea", DailySecu

Commercial projects

Cloud services

Monitoring and receive a response over 200 servers with the legacy(Windows 2k3) ~ modern(Windows 10 and latest Linux) (2020)

LS Global, Inc. Databean, Co., Ltd.

Chemical

Providing information suitable for mines, substrates and chemical properties for ceramics industry. (2019)

Korea Institute of Ceramic Engineering and Technology Databean, Co., Ltd.

Compliance

Counterstrike solution for companies and institutions to respond to DDA(Disability Discrimination Act) (2016)

Incheon International Airport Namdong-gu District Office (Incheon) Chunghyun Children Center (Incheon) JSMGlobal, Inc. (Incheon)

Filetypes

AI based experts system for filetype identification including executable(PE, ELF), non-executable, mobile(APK), documents(MS Office), script, image, 3D model, and unclassified file formats. (2005~Now)

Korea Internet & Security Agency (KISA) IBM Korea Bioden Wooricare The Spot Kangwon University Incheon Information Industry Korea Gas Corporation Incheon Metropolitan Police Agency

Blockchain

Implementing the Smart Contract with Ethereum and Cardano EVM (2019) / Security Vulnerability Consultation for the Smart Contract Apps (2022) / Bronze award in KISA-NHBank-TheLoop Fintech X Blockchain Hackathon (2018)

NH(Nonghyup) Bank Korea Internet & Security Agency (KISA) The Loop Cardano Seoul Community (Cybersecutity Company in South Korea)

HR/Real Estate

Human Resource search, Real Estate search and brokerage solutions. (2009~2012)

Icheon Information

I am seeking opportunities...

Cybercrime and Crisis negotiations

I’m interested in learning how to negotiate in response to ransomware and DDoS incidents, especially those involving malicious hacktivists. Although I'm still gaining experience in this area, I'm eager to find opportunities. If any professionals are open to collaborating, please feel free to reach out to me anytime.

Check my PGP key

ICS and SCADA security

Over the past 10 years, I’ve often handled requests for ICS and SCADA security analysis. While my experience in system areas has been highly applicable in this field, challenges involving signal processing, which require a strong mathematical foundation, remain difficult for me. I’m always looking for someone to collaborate with.

WebAssembly

I’m interested in solving issues in embedded systems and ICS using WebAssembly (also known as WASM). My efforts toward this goal include participating in and running WebAssembly communities like AsmNEXT.

Join me

Join me.

I am ready to dedicate all my experience to you.

Catswords Colosseum

ActivityPub (Mastodon) based distributed social media service.

Join

Microsoft Teams

I prefer Microsoft Teams as my communication channel.

Join