One Key, Two Key, I Just Stole Your goTenna Key
Discloses cryptographic and firmware vulnerabilities in goTenna Pro mesh networking devices, allowing off-grid key extraction and message decryption.
Summary
Off-Grid Tactical Mesh Networking with goTenna
goTenna Pro devices provide encrypted, off-grid mesh communications for defense, law enforcement, and emergency response teams operating in denied communications environments.
Reverse Engineering Firmware and Cryptographic Keystores
Erwin Karincic and Woody analyze the device firmware and hardware interfaces, uncovering critical implementation flaws in how cryptographic keys are derived, stored, and verified in memory.
Extracting Group Keys and Decrypting Mesh Telemetry
Exploiting improper key isolation and weak nonce generation enables attackers to extract pre-shared encryption keys over the air, decrypting situational awareness data and forging tactical messages.
Securing Tactical Communications Hardware
Mitigating mesh key extraction requires deploying tamper-resistant secure elements, enforcing hardware-backed key derivation, and patching over-the-air protocol handshakes.
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