The migration of the user's data and applications in a shared environment of a cloud, where there is a collocation of several users increases security related concerns. The rapid transition to cloud computing has fueled concerns on the security issues. Cloud computing has a potential of providing elastic, easily manageable, powerful and cost-effective solutions. The emergence of cloud computing has changed perception of all regarding software delivery, development models and infrastructure. Although it has succeeded in securing the system from MITM attacks, it still has a vulnerability from other cyber attacks, so implementation of the Blockchain needs security improvisation. The percentage of security test results gets 95% which shows that securing the system from MITM attacks is relatively high. After implementing Blockchain technology to the system, white-box testing using the Wireshark gives the result that the authentication payload sent has been well encrypted and safe enough. The analyisis results before implementing Blockchain technology show that the authentication payload is still in plain text, so the data confidentiality has not minimize passive voice. The implementation uses block hash and proof-of-work methods on blockchain technology and testing is using White-box-testing and security tests distributed to system security practitioners who are competent in MITM attacks. Blockchain technology offers methods such as peer to peer, block hash, and proof-of-work to secure the payload of authentication process. Payload authentication is vulnerable to Man-in-the-middle (MITM) attack. The main benefit of this system is the uniqueness of the incorporation of the password and messaging systems which denies access to any unauthorized personality and owner's awareness method. Then, the keypad is provided for an authorized person for the provision of password for door unlocking, if multiple wrong password attempts were made to unlock, a message of burglary attempt would be sent to the house owner for prompt action. ![]() This work is a real-time smart doorbell notification system for home Security as opposes of the traditional security methods, it is composed of the doorbell interfaced with GSM Module, a GSM module would be triggered to send an SMS to the house owner by pressing the doorbell, the owner will respond to the guest by pressing a button to open the door, otherwise, a message would be displayed to the guest for appropriate action. The recent advancement in the communication system has brought the tremendous application of communication gadgets into our various areas of life. ![]() Considering the oldest simple methods of security that is the mechanical lock system that has a key as the authentication element, then an upgrade to a universal type, and now unique codes for the lock. Control of home security system remotely always offers huge advantages like the arming or disarming of the alarms, video monitoring, and energy management control apart from safeguarding the home free up intruders. In our homes or offices, security has been a vital issue.
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