Greetings to you. I’m rec/Hanning Xia(夏汉宁) from China.

Education:

  • Ph.D. Student (2023 - ), School of Computer Science and Technology, Nanjing University, Jiangsu, China
  • Bachelor’s Degree (2019 - 2023), School of Cyber Science and Engineering, Southeast University, Jiangsu, China

Profession:

  • Intern (Autumn 2025), Security Research, ByteDance Shenzhen, Guangdong, China

CTF:

  • Currentyly I play cryptography for r3kapig and N0wayBack.
  • Previously a member of SUS at Southeast University.

I am interested in cryptanalysis and applied cryptography these days.

Can you hear me?
I can hear you.