Encrypt attachments for use in emails? about openpgp-php

[singpolyma]

Yes, you will need to implement https://tools.ietf.org/html/rfc3156 yourself, though, as I don't have that in here yet. You should be able to use the encryption and enarmoring functions from this library to create the pieces needed for the encoding

[fabacab]

Okay, thank you for the pointer! :) This is not something I can do myself quickly because I am not skilled enough but it is a good excuse/exercise to improve.

[DanielRuf]

https://github.com/DanielRuf/honeypot-scripts/blob/7a8b0daf5d57f27ab9ab164e6672af490d07b472/upload_mail.php#L30-L41

Just in case someone else stumbles into this issue here. ;-) You should not implement this yourself.

S/MIME is different from OpenPGP, these are two solutions, OpenPGP should be ok.
http://security.stackexchange.com/questions/7874/how-does-pgp-differ-from-s-mime

[singpolyma]

@DanielRuf No one said anything about S/MIME.

[singpolyma]

@DanielRuf The example you pasted looks like it's separately encrypting each attachment and attaching encrypted files. Unless I'm misreading the code, which I might be. PGP/MIME will provide a much better user experience.

[DanielRuf]

Okay, but so far this should work with my example code which just uses another library (but already tested it with openpgp-php and it worked).