| A New secure email scheme Using Digital Signature with S/MIME |
| Pages: 56-62 (7) | [Full Text] PDF (487 KB) |
| MA Raji, F Amiri, M Ahmadian |
| PhD and Bsc Students at Razi University, IranMsc Student at Shiraz University, Iran |
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Abstract - Email as one of the most popular application among internet of things, needs more attention in front of potential dangerous attacks. Digital Signature is known as one of the most prominent applications of public key cryptography to resist in front of attacks. To save secure email against forgery, S/MIME is of the best choices in which uses digital signature. However, S/MIME use RSA with a weakness hash function that may be broke by intruders. On the other hand, the speed of implementing S/MIME push some time complexity. Therefore, it need a better scheme to refuse attacks. This paper presents a new scheme of an efficient email application which is uses of a secure public-key encryption – digital signature. We implement our scheme with three most popular digital signature algorithm: RSA that currently uses by S/MIME (for comparison), ELGAMAL and elliptic curve (ECDSA) with different hash functions in PHP as one of the best web languages. As our contribution we discuss and analyze security aspects of proposed digital signature schemes to choose the best scheme which has features of low computational complexity and fast operating speed for using beside S/MIME. |
| Index Terms - Cryptography, Communication, information, email Security, data encryption, email Security, S/MIME |
C itation - MA Raji, F Amiri, M Ahmadian. "A New secure email scheme Using Digital Signature with S/MIME." International Journal of Computer Networks and Communications Security 4, no. 3 (2016): 56-62. |
| Impact of Cloud Adoption on the Performance of Organizations: A Facebook and Linked in Survey-Based Analysis |
| Pages: 63-77 (15) | [Full Text] PDF (465 KB) |
| LI BAGIWA |
| Department of Computer Studies, College of Science and Technology, Hassan Usman Katsina, Polytechnic Katsina, P.M.B. 2052 Katsina State, Nigeria |
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Abstract - This paper presents survey-based analysis and interpretation of results obtained from the data collected using online questionnaire. Questionnaire was distributed to the cloud practitioners via Facebook and LinkedIn through cloud computing professional groups like Cloud Storage, Cloud Computing Microsoft - UK and Cloud Architect-Developer-Expert-Consultants and the like. The survey was conducted to determine the performance of organizations using cloud computing services before, during and after adoption. In particular, we focused to study what impact these four factors (trustworthiness, efficiency, scalability and flexibility) have on the performance of cloud adoption? For the purpose of data collection in this research, 3,500 respondents were invited to participate in this survey. However, 310 respondents from 44 different countries responded in the period of 4 months (June - September, 2015). Hypothesis testing and data analysis was carried out using Statistical Package for Social Sciences (SPSS) and the results have been summarized. In line with two recently conducted similar researches, the findings of this research also show that the selected 4 four factors have significant positive impact on the performance of organizations using cloud computing. |
| Index Terms - Cloud Computing, Cloud Adoption, Cloud, Cloud Impact, Organizational performance, Cloud survey analysis |
C itation - LI BAGIWA. "Impact of Cloud Adoption on the Performance of Organizations: A Facebook and Linked in Survey-Based Analysis." International Journal of Computer Networks and Communications Security 4, no. 3 (2016): 63-77. |
| A Proposed Architecture and Protocol Stack for Improving QoS in Wide Vehicular Communications |
| Pages: 78-88 (11) | [Full Text] PDF (1.04 MB) |
| M Pourkiani, S Jabbehdari, A Khademzadeh |
| Department of Information Technology, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Computer Engineering, Tehran North Branch, Islamic Azad University, Tehran, IranIran Telecommunication Research Center, Department of National International Cooperation, Tehran, Iran |
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Abstract - The Intelligent Transportation System (ITS) is a system which is able to exchange information between Vehicles, Roadside Units, Base Stations and Infrastructure to enhance the safety of transportation. It is also able to provide internet connectivity and many different services to the users. Vehicular Networks, provides Vehicle to Vehicle (V2V), Vehicle to Roadside (V2R) and Vehicle to Infrastructure (V2I) communications and it plays an important role in Intelligent Transportation System. Due to special characteristics of Vehicular Networks, QoS (Quality of Service) provisioning in these networks is a challenging task. QoS refers to the capability of a network to provide better service to selected network traffic over various technologies. In this paper we present a novel architecture and protocol stack which aims to improve QoS in Wide Vehicular Communications. |
| Index Terms - VANET, QOS, ITS, Protocol Stack, Wireless Networks |
C itation - M Pourkiani, S Jabbehdari, A Khademzadeh. "A Proposed Architecture and Protocol Stack for Improving QoS in Wide Vehicular Communications." International Journal of Computer Networks and Communications Security 4, no. 3 (2016): 78-88. |