encrypted File size is changed when received by the other host on IOS

[HadiHas]

Bug Information

Version Number of Plugin: 1.4.0
Device Tested On: Iphone 6
Simulator Tested On:
Version of VS: 2019
Version of Xamarin: 12.8
Versions of other things you are using:

Steps to reproduce the Behavior

Encrypt a file using pgp encryption and send the encrypted file to the server.
the sent file for example was 1985940 when it was received the size was 1985942
this leads to failing the decryption process due to file byte length.

Expected Behavior

Actual Behavior

Code snippet

Screenshotst