Tag
engineering
4 posts tagged engineering.
- 7 min read
What we tested before launching ClipHop: the pre-launch QA pass
Behind-the-scenes look at ClipHop's pre-launch testing — the device matrix, the BLE edge cases, the OEM battery-killer behaviors, the pairing failure modes, and the things we deliberately haven't tested yet.
- 5 min read
How we measure clipboard latency in ClipHop (and why sub-500 ms is the bar)
What 'fast clipboard sync' actually means: how ClipHop measures end-to-end latency over Bluetooth LE, what L2CAP and GATT give us, and why we set sub-500 ms as the round-trip goal for plain text and URLs.
- 6 min read
How ClipHop encrypts your clipboard: X25519, AES-256-GCM, and Ed25519
A complete walkthrough of ClipHop's cryptographic design — X25519 ECDH per reconnect for session keys, AES-256-GCM for authenticated encryption, Ed25519 long-term identity keys in the Keychain / Keystore, and fingerprint verification against MITM.
- 6 min read
Why we chose Bluetooth LE for clipboard sync (over WiFi, iCloud, and LAN)
The engineering rationale for ClipHop: why Bluetooth LE beats WiFi, iCloud, and LAN-based clipboard-sync tools like KDE Connect — and where BLE's honest trade-offs show up.