The TETRA standard is used in radios worldwide. Security researchers have found multiple vulnerabilities in the underlying cryptography and its implementation, including issues that allow for the decryption of traffic.
Researchers find 'backdoor' in encrypted police and military radios::The TETRA standard is used in radios worldwide. Security researchers have found multiple vulnerabilities in the underlying cryptography and its implementation, including issues that allow for the decryption of traffic.
Remember, if the "good guys" got a backdoor access, the bad guys can use that backdoor too. In fact, the bad guys will probably use the backdoor much more frequently, which is why attempts to place backdoor on end-to-end encryption by various governments are very dangerous.
Is there a list of situations where it's illegal to use encryption in the US? It's 100% illegal to transmit encrypted data over ham radio (although transmitting unencrypted packets and accessing the internet through unencrypted means over ham radio is not). I'm not sure of what other situations where using encryption is illegal though.
Hm, where does https play in though? Most, if not all, popular websites now use encryption. If Alice were to access Bob’s site via ham radio and his site uses https, is Alice breaking the law?