李孟翰．Meng-Han Lee (dm4)

Email sunrisedm4@gmail.com / GitHub dm4 / Blog blog.dm4.tw

Experience

Second State

May. 2019 - Now

• Software Engineer, IT & DevOps
• Contributed to the WasmEdge implementation:
  • A lightweight, high-performance, and extensible WebAssembly runtime.
  • One of the fastest WebAssembly VMs on the market (based on LLVM AOT).
  • Supported various WebAssembly proposals, including: WASI, Reference Types, Component Model, etc.
• Assisted with the SOLL implementation:
  • A new compiler capable of generating ewasm files from Solidity and Yul.
  • Compiled Solidity or Yul to LLVM IR.
  • Generated ewasm or EVM bytecode.
• Supported the ParaState implementation:
  • A Substrate-based blockchain project.
  • A stand-alone blockchain based on frontier.
  • A parachain based on cumulus.

Skymizer

Sep. 2015 - May. 2019

• Software Engineer, IT & DevOps
• Assisted in the implementation of Lity:
  • Grammar extension from Solidity
  • Rule engine
  • Ethereum Native Interface (ENI)

Yahoo! Taiwan

Mar. 2014 - Jul. 2015

• E-commerce (EC) Software Engineer
• Member of the Trust & Safety Team
• Worked to reduce the fraud rate and improve fraud detection within Yahoo! EC websites.

Intern at Yahoo! Taiwan

Jul. 2012 - Aug. 2013

• E-commerce (EC) Security Intern
• Discovered several vulnerabilities in Yahoo! EC websites, including DoS, XSS, arbitrary file upload, remote code execution, and SQL injection.
• Assisted Yahoo! EC in improving web security.

Lecturer of Linux Class

Oct. 2011 - May. 2012

• Taught at National Taiwan University, Department of Computer Science & Information Engineering - 資訊系統訓練班.
• Covered basic knowledge of Linux, including file systems, regular expressions, vim, internet settings, cron jobs, web servers, shell scripting, firewalls, and system security.

Honor and Awards

• Hacks in Taiwan Conference (台灣駭客年會) 2014 Speaker, “AirPlay Screen Mirroring 的 Man-in-the-middle Attack”

• 2nd place, DEF CON 22 CTF 2014 (Team: HITCON)

• 8th place, SECUINSIDE CTF 2014 (Team: HITCON)

• 1st place, Information Security Competition of Institute of Information Industry, Taiwan, 2013 (資安技能金盾獎)

• 1st place, Hacks in Taiwan Conference (台灣駭客年會) 2013 Wargame Competition

• 3rd place, Information Security Competition of Institute of Information Industry, Taiwan, 2012 (資安技能金盾獎)

• 1st place, Hacks in Taiwan Conference (台灣駭客年會) 2012 Wargame Competition

• 4th place, Information Security Competition of Institute of Information Industry, Taiwan, 2011 (資安技能金盾獎)

• 3rd place, Hacks in Taiwan Conference (台灣駭客年會) 2011 Wargame Competition

Education

National Taiwan University, Taipei, Taiwan

Sep. 2011 - Mar. 2014

• Department of Computer Science & Information Engineering
• Master’s Degree
• Thesis
  • Display Security for Mobile Mirroring: Keyboard Logging Attack by Visual Feedback

National Taiwan University, Taipei, Taiwan

Sep. 2007 - Jul. 2011

• Department of Computer Science & Information Engineering
• Bachelor’s Degree

Research Experience

Mobile, Social & HCI Research Lab

Jun. 2010 - Mar. 2014

• Advisor: Prof. Mike Y. Chen

Publications

• “Clip-on gadgets: expanding multi-touch interaction area with unpowered tactile controls”, in Proceedings of UIST 2011.
  • Neng-Hao Yu, Sung-Sheng Tsai, I-Chun Hsiao, Dian-Je Tsai, Meng-Han Lee, Mike Y. Chen, Yi-Ping Hung,
• “iRotateGrasp: Automatic Screen Rotation based on Grasp of Mobile Devices”, in Proceedings of CHI 2013
  • Lung-Pan Cheng, Meng Han Lee, Che-Yang Wu, Fang-I Hsiao, Yen-Ting Liu, Hsiang-Sheng Liang, Yi-Ching Chiu, Ming-Sui Lee, Mike Y. Chen,