There is a new version of AmiSSL 5.7 available here:
https://github.com/jens-maus/amissl/releases/5.7
For Amiga 68k and AmigaOS4, because there isn't MorphOS native version because the author "please try to find motivated and talented developers who join our team as maintainers for these alternative platforms", he forgets that MorphOS has is own library, but this protocol is necessary with the IBrowse and old Internet programs.