In Charm 0.43, any two users can collude to achieve the ability to decrypt YCT14 data.Referenceshttps://github.com/JHUISI/charm/issues/276https://eprint.iacr.org/2020/460https://www2.hci.uni-hannover.de/papers/Tan2019.pdfhttps://github.com/JHUISI/charm/blob/dev/charm/schemes/abenc/abenc_yct14.py
