Researchers found that an encryption algorithm likely used by law enforcement and special forces can have weaknesses that could allow an attacker to listen in.

Hacker News is a community-driven platform for sharing and discussing technology news, startups, and programming-related topics. Through user submissions and comments, Hacker News offers insights into emerging technology trends, industry developments, and entrepreneurial ventures. Readers can participate in discussions, share their insights, and stay informed about the latest advancements in technology and innovation.

Hacker News

Security researchers discovered that end-to-end encryption algorithms used in TETRA radio systems have critical vulnerabilities. The encryption starts with 128-bit keys but gets compressed to 56 bits, making it vulnerable to cracking. This affects radios used by police, military, and intelligence agencies worldwide. The researchers also found flaws allowing message injection and replay attacks. While the encryption was designed to address previous TETRA vulnerabilities, it introduces new security risks that may not be transparent to end users.

Encryption Made for Police and Military Radios May Be Easily Cracked