On Thu, Apr 15, 2021 at 05:02:20PM +0200, Johan Brichau via Glass wrote: > There is also https://github.com/noha/JSONWebToken <https://github.com/noha/JSONWebToken> > But I don’t know if it works in GemStone. Hi, This one by Norbert Hartl uses my Pharo OpenSSL FFI wrapper to verify RS256 with RSA public keys in PEM format. Pierce