Greetings! I'm Diwang. I'm a PhD student researching novel program analysis methods to make our web and cloud technologies more secure, private, and reliable. I reside at the Department of Computer Science of Johns Hopkins University, advised by Prof. Yinzhi Cao.

Previously, I had the privilege to work with Prof. Soudeh Ghorbani on network verification and Prof. Peng Huang and Prof. Haryadi Gunawi on distributed systems reliability. I graduated from Bandung Institute of Technology (ITB), Indonesia in 2020 with Cum Laude distinction.

Office
Department of Computer Science
Johns Hopkins University
357 S3 Malone Hall
3400 N Charles St, 21218
Baltimore, MD, USA

Email
diwangs@cs.jhu.edu (for humans)
ssangdi1@jhu.edu (for invites)

Resume
Apr '26

Research

My current research interest revolves around two topics regarding web security and program analysis:

• Web vulnerability detection in new runtime and framework (e.g., SPA, server frameworks)
• Web vulnerability detection with efficient LLM agent architecture

Publications and Manuscripts

• TranSPArent: Taint-style Vulnerability Detection in Generic Single Page Applications through Automated Framework Abstraction
  Senapati Diwangkara, Yinzhi Cao
  NDSS 26
• Deriving Semantic Checkers from Tests to Detect Silent Failures in Production Distributed Systems
  Chang Lou, Dimas Shidqi Parikesit, Yujin Huang, Zhewen Yang, Senapati Diwangkara, Yuzhuo Jing, Achmad Imam Kistijantoro, Ding Yuan, Suman Nath, Peng Huang
  OSDI 25
• Tempus: Probabilistic Network Latency Verification
  Sepehr Abdous*, Senapati Diwangkara* (* equal contribution), Soudeh Ghorbani
  IEEE Access 24
• Study of Data Imbalance and Asynchronous Aggregation Algorithm on Federated Learning System
  Senapati Diwangkara, Achmad Imam Kistijantoro
  ICITSI 20

Teaching

• [JHU, F24] Head TA, Object-Oriented Software Engineering
• [JHU, S24] Head TA, Software Testing and Debugging
• [JHU, F23] Head TA, Object-Oriented Software Engineering
• [JHU, S23] Head TA, Software Testing and Debugging
• [JHU, F22] Head TA, Intro Algorithms

Activities

• [2026] Awarded $1,337 bounty over prompt injection vulnerability found in Google Gemini GitHub Action, featured on The Register
• [2022] Accepted to Google CS Research Mentorship Program, Class B

Misc Interests

• Journalism: Blogging and journalism in general are the thing that gets me into writing. Some of my favorites are Stratechery, Asianometry, and Vitalik's Although different from the world of academia (here's a good video essay about it), they're also a vital part of mass communication and also cathartic when done right. Check out my blog, blog.diwangs.dev!
• Homelab: I enjoy managing my own IT infrastructure and learning to make it more secure and reliable. Skin in the game! (NixOS, btw)
• Amateur Radio: I hold an American amateur radio license. My callsign is N1DIW.
• Games: Like the stereotypical CS student, I enjoy playing video games. Mostly FPS (Valorant, anyone?) and city-building games