Introduction: The ability of quadratic dose protocol to maintain a good quality image for an overweight and obese patient is well reported. However, a practical approach to the implementation of this protocol in whole-body imaging in Malaysia is currently lacking. Hence, the aim of this study is to derive the quadratic dose formula that suits our PET system. Metho...

This work presents a cryptographic analysis of AN.ON’s anonymization protocols. We have discovered three flaws of differing severity. The first is caused by the fact that the freshness of the session key was not checked by the mix. This flaw leads to a situation where an external attacker is able to perform a replay attack against AN.ON. A second, more severe, error was found in the encryption ...

The term "Internet of Things (IoT)" expresses a huge network of smart and connected objects which can interact with other devices without our interposition. Radio frequency identification (RFID) is a great technology and an interesting candidate to provide communications for IoT networks, but numerous security and privacy issues need to be considered. In this paper, we analyze the security and ...

This paper presents an analysis of the Gnutella protocol, a type of the peer-to-peer networking model, that currently provides decentralized file-sharing capabilities to its users. The paper identifies the open problems that are related to the protocol and proposes strategies that can be used to resolve them. Initially, the paper explains the basics of the peer-to-peer networking, and then comp...

In the last years, diverse network interface designs have been proposed to cope with the link bandwidth increase that is shifting the communication bottleneck towards the nodes in the network. The main point behind some of these network interfaces is to reach an efficient distribution of the communication overheads among the different processing units of the node, thus leaving more host CPU cyc...