This paper describes a new mobile authentication method which is based on an Open ID Connect standard and subscriber identity module card. The proposed solution enables users to access websites, services and applications without the need to remember passwords, responses or support of any equipment. The proposed method is evaluated from the users' perspective as well as from the security viewpoint. Moreover, we compare it with the two most popular existing authentication schemes i.e. static passwords and SMS OTP (one time password). In order to evaluate user's view on various authentication methods a questionnaire was prepared and distributed among 40 participants. Obtained results revealed that the new authentication scheme yielded better results than the existing methods. Finally, we also performed a security analysis with respect to all abovementioned authentication solutions to assess whether there are any major risks related to the proposed method.

Authentication is the process of confirming one's identity. There is a steadily growing need to protect confidential, especially financial, data, as banks provide their services online through their ubiquitous systems. This paper presents a novel authentication method based on the analysis of body composition. A trusted system that relies on the biometric authentication has been designed, implemented, and evaluated, showing a false accept rate (FAR) of 0%, while its false reject rate (FRR) is 2.65%. As the proposed solution requires virtually no special action from the user during the authentication process, it can be seen as suitable for incorporation into existing multifactor authentication solutions.

This paper presents a novel method of hidden data transmission in the physical layer of the optical networks. It is based on direct spread spectrum technique, which is a simplistic and robust approach. There has been a description provided of a concept in which public signal sequences and noise in optical networks were used to hide information. A number of experiments have been conducted according to this work, namely verification of the impact of spreading code lengths on system performance (stealth signal throughput possible to achieve, influence on the public channel);moreover, optical power level dependencies (the stealth versus public channel power levels) were investigated. Finally, there was also a concept presented of multi-code transmission for data rete improvement. Performed experiments proved the feasibility and proper operation of the proposed system and show its potential performance. The maximum achieved hidden data transfer rate was about 20 kbit/s at 25 km fiber length.