Radio Frequency Identification (RFID), the technology for contactless transmission of data between small devices and readers, penetrates more and more our daily life. The technology is nowadays used in passports, transponder keys, or logistics, usually as a mean to identify the tag to the reader. Security solutions for such devices are often vulnerable to so-called man-in-the-middle (MITM) atta...

For secure communication it is not just sufficient to use strong cryptography with good and strong keys, but to actually have the assurance, that the keys in use for it are authentic and from the contact one is expecting to communicate with. Without that, it is possible to be subject to impersonation or man-in-the-middle (MitM) attacks. Mega meets this problem by providing a hierarchical authen...

Secure initial pairing of electronic gadgets is a challenging problem because of the usual lack of a common security infrastructure and the threat of so-called Man-in-the-Middle (MiTM) attacks. A number of techniques have been proposed to address the problem, butmany are not applicable to devices lacking required interfaces, such as displays or speakers. In this paper, we introduce a new secure...

certificateless public key cryptography (cl-pkc) is a useful method in order to solve the problems of traditional public key infrastructure (i. e. large amount of computation, storage and communication cost for managing certificates) and id-based public key cryptography (i. e. key escrow problem), simultaneously. a signcryption scheme is an important primitive in cryptographic protocols which p...

most of the patients imagine that chest pain is not sign of heart attack. but, may be pain is not sign of heart attack. pain source may be from pulmonary, stomach, intestinal, psychologic or musculoskeletal problems. from these factors, when two or more factors combine to each other, similar signs are happen. all of these factors harden diagnosis of chest pain reason. only with separation of pe...

 Statins are commonly used drugs in the treatment of hyperlipidemia (HL), despite some undesirable side effects. These range from mild symptoms such as myopathy, muscle weakness and myalgia to severe muscle weakness associated with chronic myopathy and acute renal failure (ARF) as a result of rhabdomyolysis. The most serious and deadly side effect of statins is rhabdomyolysis. The case presente...

how to cite this article: akhondian j, ashrafzadeh f, beiraghi toosi m, hashemi n. a rare presentation of neurobrucellosis in a child with recurrent transient ischemic attacks and pseudotumor cerebri (a case report and review of literature). iran j child neurol. 2014 spring; 8(2):65-69.   brucellosis is a multi-system infectious disease that presents with various manifestations and complication...

In this paper, the security of a distance bounding protocol is analyzed which has been recently proposed by Jannati and Falahati (so-called JF). We prove that an adversary can recover key bits of JF protocol with probability of “1” while the complexity of attack is “2n” runs of protocol. In addition, we propose an improved protocol and prove that the improved protocol is resistant to mafia frau...