Entre a ausência declarada e a presença reclamada: a identidade potiguar em questão

How do the identities of a people build themselves? How do the geographic clippings influence the representations of some social groups, when they define themselves or when they are defined, for example, as people from Pernambuco, Rio Grande do Sul, Paraíba, Rio de Janeiro, Ceará, Bahia? What symbolic elements, contests and benefits are involved in these processes of identity construction? By taking the discussions about potiguar people as the theme of this research, we intend to discuss about the displacements, the impasses in their representations that usually represent him as a being who he is not, constantly seduced by the enchantments of the other, by the values that come from outside. Thus, from the Rio Grande do Norte space, we investigated, in various contexts, since the last three decades of the nineteenth century to the current days, how the space identities have been used as strategy, by various characters, in attempt to build and/or to define representations that characterize and single potiguares out, in the face of other beings of the nation

Security of Two-Party Identity-Based Key Agreement

Identity-based cryptography has become extremely fashionable in the last few years. As a consequence many proposals for identity-based key establishment have emerged, the majority in the two party case. We survey the currently proposed protocols of this type, examining their security and efficiency. Problems with some published protocols are noted.