Earlier quoted context omitted.
Maybe generalize that further, a right to privacy.
Perhaps, but see Article 8 which is cited in your sibling comment. It already contains a right to privacy. But the term privacy is not very rigid. It can be taken and interpreted in various ways. It's certainly a good thing to mention it, but encryption needs to be mentioned explicitly, spelled out even. There cannot be any room for interpretation: citizens have a right to encrypt their communication, end-to-end with…
People have a right to encrypt their communication, end-to-end with their intended participants, such that no one other than their intended participants can decrypt any aspect of their communication.