grepular/ept3-sni repository overview

⁠Email Privacy Tester - SNI Watcher

Watches the SNI hostname in incoming TLS handshakes and reports the requesting IP addresses to the Email Privacy Tester API. Capture uses a raw AF_PACKET socket with an in-kernel BPF filter, so the image is built FROM scratch and contains a single binary plus CA certificates. It handles IPv4 and IPv6, and reassembles ClientHellos split across TCP segments. It is one component of Email Privacy Tester, a self-hostable tool that tests email clients for privacy and security failures.

Needs host networking, CAP_NET_RAW and an ethernet interface named by IFACE.

• Source: https://gitlab.com/grepular/ept3⁠ (sni-watcher/)
• Website: https://www.emailprivacytester.com⁠
• License: GNU GPL V3
• Author: Mike Cardwell - https://www.grepular.com⁠

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