How do you plan to prove that a person can unencrypt certain communication and is not simply an intermediary? What if a hacker plants "secret encrypted documen

How do you plan to prove that a person can unencrypt certain communication and is not simply an intermediary? What if a hacker plants "secret encrypted documents" on your computer, and then the government demands that you produce a key for them? This situation has allegedly already played out with child porn[0], and planting drugs is not unheard of by unscrupulous police officers[1]. Essentially, you're back at the issue GP describes - we don't trust government employees with this much power over our lives. [0] - https://www.nytimes.com/2016/12/09/world/europe/vladimir-putin-russia-fake-news-hacking-cybersecurity.html https://www.nytimes.com/2016/12/09/world/europe/vladimir-put... [1] - https://www.innocenceproject.org/leaked-documents-show-alabama-police-planted-drugs-guns-on-innocent-black-men-in-decades-long-scheme/ https://www.innocenceproject.org/leaked-documents-show-alaba...