All Cops Are Broadcasting: Breaking TETRA After Decades in the Shadows 

This talk will present the first public disclosure and security analysis of TETRA (Terrestrial Trunked Radio): a European standard for trunked radio globally used by government agencies, police, prisons, emergency services and military operators. Additionally, TETRA is widely deployed in industrial environments such as factory campuses, harbor container terminals and airports, as well as critical infrastructure such as SCADA telecontrol of oil rigs, pipelines, transportation and electric and water utilities.
Authentication and encryption within TETRA are handled by proprietary cryptographic cipher-suites, which until now have remained secret for over two decades through restrictive NDAs...
By: Wouter Bokslag , Carlo Meijer , Jos Wetzels
Full Abstract and Presentation Materials: www.blackhat.com/us-23/briefi...