Cryptanalytic attacks on Rivest, Shamir, and Adleman (RSA) cryptosystem: issues and challenges

RSA cryptosystem is an information security algorithm used for encrypting and decrypting of digital data in order to protect the content of the data and to ensure its privacy. Prior research studies have shown that RSA algorithm is very successful in protecting enterprises commercial services and systems as well as web servers and browsers to secure web traffic. In an email application, it's utilized to ensure the privacy and authenticity of email message. Some studies have also shown the efficiency of RSA algorithm in securing remote login sessions, and electronic credit-card payment systems. Generally RSA algorithm gain a security support because of it’s frequently use in most applications where security of digital data is mostly a concern. Its strength lies with its ability of withstanding many forms of attacks. While many studies focus on proving that RSA algorithm is breakable under certain cryptanalytic attacks, yet there are some confrontations on the circumstances of applying those attacks. This paper presents the issues and challenges on some key aspects of cryptanalytic attacks on RSA algorithm. The paper also explores the perceived vulnerabilities of implementing RSA algorithm which can render a cryptanalyst easier means of attack

Development of LoRa-Sigfox IoT device for long distance applications

A key feature that is required from the IoT-enabled devices is low power and long-range communication. In this paper, a prototype IoT device that is enabled with LoRa and Sigfox communication technology is developed and tested. The prototype device is built using the Pycom Fipy module and tested in a LoRaWAN setup and Sigfox setup. A test was conducted to determine the performance of the LoRa propagation in different environments and at different times of the day. The experimental data shows the coverage and diurnal performance using the IoT device. A distance of 1.17km was achieved in the open space using the LoRa while the propagation was highly impacted in the vegetation area with a distance of.512 km. The test for the Sigfox showed good coverage over a distance of 10 km. The results show the device can be used for both LoRa and Sigfox coverage test