The goal of the SecFuNet project is to design and develop a coherent security architecture for virtual networks and cloud accesses. The proposed architecture will provide solutions allowing the management of the security of communications for all machines connected to a public cloud using virtual networks. Hence, we need a coherent and robust identification scheme as well as a strong authentication system. Algorithms robust to intrusions are also needed for creating a secure environment. Besides, the proposed architecture must guarantee security in the virtualized infrastructure, through isolation of virtual networks and access control for users and managers. The identification of authorized users, however, must not compromise their privacy. Moreover, it is necessary to bring an ergonomic security scheme that is acceptable for all users, even those unknowledgeable in computer science. And finally, the proposed scheme must take into account the heterogeneity of equipment (wireless and wired) to preserve interoperability.This European-Brazil project is based on a 381 person-month and the total budget for European partners is 1,470,076€ for EU contribution of 1,099,350€ for Europe and a contribution from Brazil of 2,470,876 R$.