masoud kaveh

Recent advances in electronics and wireless communications have enabled the design and manufacture of sensors with low power consumption, small size, reasonable price and various applications. These small sensors, capable of performing functions such as receiving various peripheral information based on the type of sensor, processing and transmitting that information, have given rise to an idea for the creation and deployment of so-called wireless sensor networks. Due to the unique limitations and unique features of the underwater channel such as low communication bandwidth, high bitrate error, significant propagation delay, etc., these networks can be easily destroyed by malicious attacks. Coordination and transmission of underwater messages between sensors will naturally present security challenges and perspectives. Attack on network protocols, especially communication protocols, can be easily accomplished in underwater wireless sensor networks. Therefore, the purpose of this paper is to present a secure and efficient protocol for communication in underwater sensor networks based solely on lightweight encoder operators with random number generators and cryptographic hash functions. For this purpose, first, a system consisting of a number of sensor nodes and a central node is modeled as receiving information with the presence of nodes or nodes as attackers and then the various steps of the protocol are described in detail. It is further demonstrated that the communication protocol presented in this paper is secure because it is resistant to the all attacks such as message analysis attack, message manipulation attack, relay attack, spoof message injection, insider attack and physical attack. It is also considered as an efficient protocol because it improves communication and computational overheads and memory consumption over previous methods. Statistical tests also show that the encrypted data in the proposed protocol are acceptable randomly and are independent of each other. Finally, in order to make the proposed method more practical in this paper, and to compare the challenges and resources of this method with previous methods for the purpose of hardware implementation, the required cryptographic components are implemented on the FPGA chip.

With the expansion of the use of Internet of Things (IoTs) devices and the connection of all devices to the Internet, the need to provide security in this area has been felt, which the reason Physical Unclonable Functions (PUFs) were introduced. PUF is a lightweight and popular hardware security primitives for use in IoT devices. By scrutiny the benefit and weakness of PUF types, it was found that RO-PUF has a more suitable structure for implementation on FPGA because it has high reliability and it is easier to provide circuital symmetry. Therefore, it was selected for further studies. But on the other hand, RO-PUF have small CRP space and not attractive for authentication applications. By focusing on RO-PUF and reviewing the proposed structures introduced to improve RO-PUF and modify the CRO-PUF structure, a structure is created that exponentially increases CRP space and also reduces power consumption. The average reliability of the responses is 98.33% and the uniqueness of the response bits is 47.54%. Also, the average uniformity of response bits is 50.57%. The implementation results show that the proposed design is superior to other structures.

The effect of Western media propaganda on the national security of the Islamic Republic of Iran through identity crisis In this study, the impact of Western media propaganda on the national security of the Islamic Republic of Iran through identity crisis is investigated and emphasis is placed on the temporal realm of 2009-2017.The research method was qualitative and the data collection method was library and data analysis was done by descriptive-analytic method.The main question of the research is how the impact of foreign media on Iran's national security during 2009-2017?To this question, the hypothesis was designed that the foreign media had exposed national security to targeting popular values ​​and beliefs as the most important components of identity.The findings of the study suggest that the Western media is causing an identity crisis by instilling values ​​contrary to Islamic and revolutionary values At the individual, social and power levels, it has threatened Iran's national security.

In this study, the impact of youth identity crisis is investigated on the national security of the Islamic Republic of Iran. The research method is qualitative; the library method is used for data collection; and data analysis is carried out with descriptive-analytical method. The main research question is how does the identity crisis in youth affect the national security of the Islamic Republic of Iran? For this question, the hypothesis was that the identity crisis in young people would undermine national security by undermining indigenous values ​​and beliefs as the most important components of identity. The findings of the study indicate that the identity crisis in young people is manifested through the lack of social security for them, the duality, and indecision in the fundamental values ​​of the ruling system in the form of asociality, social alienation, mass uprisings and social anomalies, and it has threatened Iran's national security.

Political participation is one of the evidences of person's presence for determining their fate. So, by developing more democracy in the world, noticing to the different aspects of people involvement in the political scene will be highlighted. Political participation is one of the essential prerequisites for the development and progress. In this regard, women as a significant part of the population of each country always suffered from unfair distribution of opportunities and resources. In this study, the researchers tried to answer this question; to what extent did the women politically participate in the Islamic Republic of Iran? The results showed that political participation of the women has increased over Pahlavi Period but there is always a gap to take advantage of women's ability for participation in the political affairs.