Cash Tokens for SAML Based Federations

Abstract

Abstract. This paper introduces an approach for digital cash within SAML based federations. The approach bridges between the currently established federation infrastructure and the payment applications that are not often implemented by such federations. Since a lack of integrated payment can be seen as a drawback when federations offer commercial services, the approach described in this paper offers the possibility to include the whole payment process into the federation protocol design and architecture. A SAML token together with a SAML Payment Assertion is used to transmit digital cash and payment information within the federation.