In this paper we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows to encrypt messages to a whole range of users simultaneously whose identities match a certain pattern. This pattern is defined through a sequence of fixed strings and wildcards, where any string can take the place of a wildcard in a matching identity. Our primitive can be app...

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Access to information systems across corporate boundaries with high demands to privacy and trust result into ambitious research and development targets. This study provides motivation and a roadmap for approaching integrated security management solutions in a business network of partners with heterogeneous ICT and security infrastructures. We aim at describing specifics of identity and access m...

Many countries are currently designing or even rolling out electronic identity cards. Simultaneously, eID applications are developed. In many cases, the eID technology is initially integrated in governmental applications. Thereafter, the technology is adopted by other domains (i.e. the financial sector, eHealth services, social networking, corporate environments, ...). However, security, privac...

today, the brand creation or branding, which is the so-called industrial identification, is one of the most common industrial terms under various researching. this word is associated with the creation of an emotional bond with stakeholders. brand is defined as a name, term, sign, symbol, or design, or a combination of them, intended to identify the goods or services of one seller or group of se...

Adam Ashforth arrived in Soweto more or less by accident in 1990. A historian preparing to do research on the transition to democracy in South Africa, he hired a room in the vast African township outside Johannesburg. He was adopted into his host family, and he has returned every year but one since 1990, making him perhaps the first professional researcher to write about Soweto on the basis of ...