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4meAndyou Not really about legislation, I know the essentials of cryptography because I actively work with it (notice: WITH, not IN), and it's a well known matter of fact in the field that
security through obscurity - which is what you'd get if you require cryptography implementors to put
secret backdoors in their algorithms - is extremely insecure. "
One ought to design systems under the assumption that the enemy will immediately gain full familiarity with them", placing a deliberate vulnerability by law, even if you keep it hidden, goes totally against this fundamental principle.
With metadata I refer to stuff that goes through the internet all the time, think of the network as an exchange of packets: you can seal it and keep secret the content of a packet (by encryption) but not some metadata essential to its transfer, such as the address of the recipient - otherwise the packet couldn't be delivered, or its weight. Just by analyzing how many, how frequent and how big are the packets you send to a specific destination, a lot can be assumed about your activity already, without even checking the inside of the packet itself.
Such critical facilities and businesses should at least theoretically implement security practices that don't really depend on the public infrastructure security. Then, if they comply or not I don't know. Here in Italy a lot of entities both in the public and private sector tend to overlook security. Then once they get massive ransomware infections, you realize they had still hundreds of (now infected) machines running Windows XP. 😑