🇺🇸 🇬🇧 PMR - Hytera Over The Air Encryption (OTA)

Hytera offers a feature in its DMR terminals that encrypts signaling data, i.e. data specific to the network (color code, time slot, talk group, etc.), using a 128-bit encryption key. This feature is called OTA (Over The Air encryption) How does OTA work? How is it effective and what does it protect against? I offer you an explanatory video to give you a first overview of this encryption. ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ Video content: 00:00 Introduction 00:58 What is OTA ? Definition 01:32 The 3 types of data exchanged on a digital PMR network 04:40 Where to find signalling data in a voice transmission? 10:44 The 2 types of encryption offered by Hytera 12:05 Why using OTA? 13:29 What is the encryption algorithm used for OTA? 14:06 Does the OTA is defined in the DMR standard? 14:55 Can the OTA be hijacked? 16:45 By comparing Hytera OTA with Motorola RAS (Restricted Access to System), witch one is the best ? 18:37 How to enable the Over The Air encryption (OTA) in the CPS? 21:51 Demonstration of how OTA encryption works with Digital Speech Decoder (DSD) 29:18 Conclusion 30:49 The final word ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ DSD (Digital Speech Decoder) sources : https://github.com/LouisErigHerve/dsd ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ Follow me / Suivez-moi : 👉   / louiserigherve   👉 https://www.1geniesup.fr/ 👉   / louiserigherve   👉 https://gettr.com/user/louiserigherve ------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------ Mots clefs : PMR, DMR, dPMR, NXDN, ICOM, Motorola, Kenwood, Airbus, TETRAPOL, TETRA, ANTARES, ACROPOL, EADS, 3G, 4G, 5G, LTE, Mission Critical, Talkie-Walkie, PTT, Push To Talk, Radiocommunications, Radio FM, CiBi, CB, Radio AM, ETSI TS 102 361, DMRA, DMR Association, OTA, Over The Air Encryption