C2 Forum — Hardening Implementation Notes
Dated implementation notes for password hashing, registration abuse controls, rendered-content sanitization and infrastructure configuration.
· v2.2
C2 Forum
Architecture notes, whitebox assessments, blackbox retests and hardening records for the C2 forum research project.
Technical records retain their original publication language. This collection is presented in English.
C2 Forum — Registration Challenge Review
Source review of the registration system, including vector CAPTCHA path prediction and anti-bot honeypot behavior.
· v1.0
C2 Forum — Nonce and State Review
Source-assisted review of nonce tracking and concurrent state updates in the signature-validation path.
· v1.0
C2 Forum — Registration Challenge Retest
Limited black-box retest of the revised registration challenge after changes to its curve generation.
· v2.0
C2 Forum — Follow-up Retest
Comparison of the system before and after the reviewed changes, including dynamic honeypots and persistence of mitigations.
· v2.0
C2 Forum — Architecture and Trust Boundaries
Dated description of C2 Forum trust boundaries, client-side signing and the original registration challenge.
· v1.0