Hi, Thanks for the quick answer. This is mainly for security purpose. I will follow the advice and contact Takashi and Marek Regards, Fabrice Geslin -----Message d'origine----- De : Dmitry Telegin [mailto:demetrio@carretti.pro] Envoyé : mercredi 19 juin 2019 13:25 À : GESLIN Fabrice <fabrice.geslin-prestataire(a)laposte.fr>; keycloak-user(a)lists.jboss.org Objet : Re: [keycloak-user] Access token customization per client Hello Fabrice, Just wondering if you want this feature to minimize token size, or rather for security purposes? If latter, just FYI, there's an ongoing effort to implement encrypted tokens [1]. At the moment, there are plans to do encrypted ID tokens only, but you can approach Takashi and Marek and discuss if that could be applied to access tokens too. [1] https://github.com/keycloak/keycloak/pull/5779 Good luck, Dmitry Telegin Carretti Consulting OÜ | Keycloak Consulting and Training Sepapaja 6, Tallinn 15551, Estonia | info(a)carretti.pro On Wed, 2019-06-19 at 08:00 +0000, GESLIN Fabrice wrote: Post-scriptum La Poste Ce message est confidentiel. Sous reserve de tout accord conclu par ecrit entre vous et La Poste, son contenu ne represente en aucun cas un engagement de la part de La Poste. Toute publication, utilisation ou diffusion, meme partielle, doit etre autorisee prealablement. Si vous n'etes pas destinataire de ce message, merci d'en avertir immediatement l'expediteur.