ftp task - PGP public key

Hi,
I am in the process of using a FTP task in my ssis package.
This is to retrieve files from a source such as xxx.com

The source company is saying in order for them to allow this (i.e. files to be retrieved over the internet using FTP), The files need to be PGP encrypted and so they are asking me for the PGP public key.

Question:
1- Does the ftp task in ssis have to do anything with this PGP public key?
2- I have checked the properties of the ftp task and there is no setting for PGP. Is there a setting for this in ftp task?

Any thoughts please?

Thanks