IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735.Volume 15, Issue 2, Ser. II (Mar-Apr 2020), PP 32-39 www.iosrjournals.org DOI: 10.9790/2834-1502023239 www.iosrjournals.org 32 | Page Secured Online Transaction (SONT):Analysisand Solution Of Secure Electronic Transaction. Ihedioha Uchechi. M 1 , Onyedeke Obinna C 2 , Dr. Ezema Modesta 3 , Agubata Immaculate Chidinma 4 , Uzo Blessing Chimezie 5 1 Department of Computer Science, University of Nigeria, Nsukka 2 Department of Computer Science University of Kairouan, Tunisia. 3 Department of Computer Science, University of Nigeria, Nsukka 4 Department of Computer Science University of Kairouan, Tunisia. 5 Department of Computer Science, University of Nigeria, Nsukka Abstract:Online transactions are gradually taking over conventional trading methods, thereby becoming a logically accepted exchange medium. A lot of financial and economic burden is now lying on the Internet crux. A foremost security threat to online transactions today is cybercrime attacks. Therefore, this work deals with the concept of Secured Online Transaction (SONT). In so doing the paper investigated some available cyber Security measures and their roles in Security of Online Transactions. The various highlight of this paper is on online transaction securities. The work developed an algorithm which is called SONT that define the processes representing a secured online transaction ranging from customers, banks and merchants with a protection against fake electronic card details. The method used is by introduction of variable keys that validate card holders and merchant details from issuer before authorization using two-way verification. Keywords: Cybercrime, Internet, Secured Online Transaction (SONT), Online Interface (OI), Electronic Card --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 25-04-2020 Date of Acceptance: 08-05-2020 --------------------------------------------------------------------------------------------------------------------------------------- I. Introduction It is very necessary to secure online transactions as they are becoming most applicable means of purchasing goods and services. Without security of the platform it will record a decline in patronage and eventually fizzle out. The major objectives of this work are itemized as: concept of Secured Electronic Transaction, identify Information Communication Technology (ICT) security branches and review cybercrime protection acts on Critical infrastructure security and, illustrate a Solution secured algorithm in performing secure online transaction called SONT. We have different protocols used in secured online transaction such as SET, iKP, KSL, and 3D secure protocols but Diffie-Hellman is a popular agreement protocol in payment protocols and is the most famous key agreement protocol. Secure electronic transaction (SET)is an open encryption and security requirement for online transaction. The function of this protocol is to shield electroniccard dealings over the Internet. Previously, SET was developed as result of security challenges arising inuseby MasterCard and Visa in February 1996 [1]. Just like there is no water tight system, SETexhibits some flaws, exposing cardholders to vulnerability of deceitful merchants who over billtheir prey customers with more than their advertised price; hackers and phishers that set up illegal Uniform Resource locator (URL) to sieve electronic card information [1]. In the same way, the merchants are not properly protected from fraudulent customers who do vice versa with the provision of prototype credit and debit card records or claim refunds without a genuine failed transaction [2]. The provision of law that protect customers in SET, makes merchant appear to be more vulnerable to fraud, as done in most of the countries in the world.Secondly, we identified that several fundamental SET application implementation issues [3]. Why is SONT necessary in today’s technology? SONT can be defined as secured online transaction and as in SET above. It is aimed at mitigating the pitfalls of SET. The Trust means that all parties should have digital certificates and the privacy defines that information or any details is made available only when and where necessary. Cybercrime remain a threat to Internet users and is on the great increase. Majority of Internet users assume that they are untouchable when surfing the net, without knowing that it is impossible to be completely safe while performing online transactions. However, we can implement some simple measures to help increase our web security. Different attempts to define and classify cybercrime as undertaken by scholars, intergovernmental organizations, government agencies and private businesses [4] and further categorizes cybercrime also as those crimesharnessed by the application of Internet technology and computer devices.