Convert the armored key into an OpenPGP Entity.

Attempt to convert the given string into an armored Block, returning an error if the string is not valid armor.

Encrypt the data with the list of PGP keys, returning an armored string.

Generate a universally unique identifier (UUID) using the computer's /dev/urandom output as a randomizer, returning a string specified by the given formatting function.

Formatting function: take the 16 random bytes and return them as a string of 8-4-4-4-12 tuples, separated by dashes.

An alternative formatting function: take the 16 random bytes and return them as a single string, with no dashes.