> At least the pgp spec has (had?) an "eyes only" flag that, Yes, there is a flag that means "for your eyes only", see RFC [0] and GPG esoteric options [1]. [

> At least the pgp spec has (had?) an "eyes only" flag that, Yes, there is a flag that means "for your eyes only", see RFC [0] and GPG esoteric options [1]. [0]: https://tools.ietf.org/html/rfc4880#section-5.9 https://tools.ietf.org/html/rfc4880#section-5.9 [1]: https://www.gnupg.org/documentation/manuals/gnupg/GPG-Esoteric-Options.html https://www.gnupg.org/documentation/manuals/gnupg/GPG-Esoter...