Desenvolvimento de um aplicativo de verificação de autenticidade de objetos físicos utilizando tecnologias de computação ubíqua

Abstract

The access to information in our society nowadays has a great importance and differential in our professional and daily life. Nowaday, the information is available by several kinds of medias, like: television, magazines, jounals, etc. The Computation has developed in the latest years contributing to store and spread the information worldwide. The Internet is an example of these contributions, which allows access to a large amount of information and diversity of content. Simultaneously, the ubiquitous computing has the aim to turn the computing invisible to the user, completely integrated and embedded in the environment in order to connect the physical world (objects) to the virtual world. One way to make the digital information available on objects is using bar codes. The new bidimensional bar codes enable access to encoded information through mobile phones, making possible to access the available information in the environment. This work presents a study of bidimensional bar codes available nowadays able to add digital information to physical objects and the development of an application which uses this technology to make the authenticity verification of physical objects existent in an ubiquitous environment. The application is based on the case study of authenticity verification of digital certificates generated in events.