I, of course, don't know the details of the cryptography theory. For such people, however, this module might be a drop-in replacement of other significant modules.
First and foremost, the interface is simple, so much so that there is no room for wrong use of cryptography. In addition, you can use both symmetric and asymmetric keys.
The only worrying is the building of the module, especially under some platform.
Incidentally, although I'm coincidentally a compatriot of the author, it is nothing to do with the rate.