signature encryption

Bilibili Tech

Dec 19, 2023 · Information Security

API Anti-Crawling Architecture and Effectiveness at Bilibili

Bilibili combats API abuse by deploying a two‑layer anti‑crawling system—gateway‑side signature verification and a GAIA risk‑control engine integrated into APIGW—that unifies device data, applies flexible rule packages, triggers diverse human challenges, and has already blocked billions of malicious requests with over 85% recall while preventing service outages.