It's older than 1832; for example: "He who trembles at this moment is guilty. For innocence never trembles before public vigilance." Maximilien Robespierre, July 26 (8 Thermidor), 1794 (translated - the original would be in French). When it is used by surveillance advocates, they don't use the exact words.
Incidentally here is that quote, with Ian Richardson as Robespierre: https://www.youtube.com/watch?v=bOW6OfeOW10
Ah nice to know! In my defense I only searched for the English version.
That being said, Robespierre was a key participant of 'La Terreur' where tens of thousands of people where hastily judged and executed and he himself ended up executed 4 months after that speech. [1]
[1] https://fr.wikisource.org/wiki/Discours_lors_de_la_s%C3%A9an... (French version)
Indeed. "Nothing to hide, nothing to fear" has always contained implicit threat.