[Torrent Fr Foresti Party
Magali Swinderman
With Brexit still occupying the number one spot on the political agenda ahead of upcoming UK General Election on 12 December, it should come as no surprise that all major party immigration policies are shaped by their stance on EU membership. They are also all committed to learn from past mistakes, from the Windrush scandal to failing to deliver on net immigration targets.
Where the policies do differ though is in relation to what a fit for purpose immigration system should look like to sustain the NHS, to attract talent to the British economy or to secure fair treatments in the workplace.
Data outsourcing is emerging today as a successful paradigm allowing users and organizations to exploit external services for the distribution of resources. A crucial problem to be addressed in this context concerns the enforcement of selective authorization policies and the support of policy updates in dynamic scenarios.
In this chapter, we present a novel solution for the enforcement of access control and the management of its evolution. Encryption is the traditional way in which a third party can be prevented from accessing information it would have otherwise access to, either because it controls a channel transmitting it or because it reads its stored representation. Our proposal is based on the application of selective encryption as a means to enforce authorizations. Also, the model here proposed represents a first solution for efficiently managing policy updates, limiting the adoption of expensive re-encryption techniques.