I'm specifically arguing against the generalizations the parent was making in particular. "Striving to reduce rights" of US citizens is generally anti-constitu

I'm specifically arguing against the generalizations the parent was making in particular. "Striving to reduce rights" of US citizens is generally anti-constitutional as a concept, especially for non-lawmaking organizations. The 4th amendment doesn't really affect any of the original crypto argument, because the search cannot be performed. Cryptography prevents the "this is the way that's acceptable" act from even starting. Note that the amendment simply says that a warrant is allowable in a bounded implementation; it doesn't demand that warrants must be executable. For instance, if a warrant is issued to search a non-existent building it's just as moot. It doesn't require the building to be created if it's not there.