Cryptographer Matthew Green: coding agents make cache timing side-channel experiments nearly trivial
matthew_d_green · x · 2026-10-27
Cryptographer Matthew Green runs a thought experiment: give two smart students a year with only the hint that they'll communicate via cache, and one will likely invent scheduled cache eviction while the other invents probing for that signal — the hard parts being implementation knowledge and who talks vs. listens. His son is currently implementing a cache timing side-channel paper with heavy agent assistance, and he argues coding agents have zero problem with implementation, leaving only coordination — implying AI agents could dramatically lower the barrier to side-channel attacks and covert channels.
More from coding & agent
- Vercel engineer shuding reimagines UI as complex-valued functions: viewport 720+42i px — shuding · 2026-10-27
- shuding: integrate your UI over real traffic to get the exact average page users see — shuding · 2026-10-27
- shuding takes the Fourier transform of a responsive dashboard as a frequency signal — shuding · 2026-10-27
- shuding mathematically proves UIs never break across infinite prop combos via interval arithmetic — shuding · 2026-10-27
- Filter-then-locate beats whole-file prompts: testing 4 ways to update READMEs with LLMs — KhuyenTran16 · 2026-10-27
- Qiaomu Clipper launches site: open-source Chrome clipper that saves reading notes to Obsidian — vista8 · 2026-10-27