In order to share secret key for Des as symetric algorithm To encrypt transaction data shared between mobile device and backend microservices I m thinking to use keycloak token (code grant flow selected) Because it have timetolive infinispan and regrouped information container in scope mappers Is it right choice or there is a vulnérabilités WE will consider refresh token in m'y flow Any advice or proposition is weclome. @Stian Best regards thanks in avance.