Following the disclosure of potential vulnerabilities in the original TETRA Air interface security design, ETSI has decided to publish its cryptographic algorithms TEA 1 through 7 and authentication specifications TAA1 and TAA2 in the public domain. This move enables independent academic review and aligns with modern security practices that favor transparent, scrutinized algorithms over secrecy to protect critical infrastructure. The decision was made at a TCCE meeting to ensure the standard remains robust against evolving threats, including future quantum attacks, while maintaining TETRA’s status as a reliable global communications standard.
Keywords: TETRA, cryptographic algorithms, quantum attacks, AES, security vulnerabilities