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Today nearly all of the people are involved in communicating each other with the help of online communication. Nearly three fourth of the world are connected via social media. So it is very important to secure the data transmission between the user. And in addition to this future of computer's will be of by Quantum technologies. So the In this paper we are going to see how to increase the security of online transmission through Quantum shift distribution algorithm. In this paper idea outlines the implementation of this most advanced level of encryption by Quantum Key Distribution method and importance of quantum cryptography in future.

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With the dominance of technology, the size of the data is increasing exponentially day by day. Cloud computing serves as an exceptional solution for storage of this rapidly growing data. Cloud computing technology evolves the delivery of computing services such as servers, storage, databases, networks, software, analytics and many more. As the significance of data elevates, a large number of security issues also arises. A lot of questions remain unanswered when we talk about the security of data stored in cloud. This paper presents a brief survey on the issues involved in cloud data storage. We elaborate the already existing ideas, methodologies and experiments recommended by our forerunners and survey the issues that exist in storage of data. We also try to figure out the necessary solutions for these issues concerning other technologies such as block chain that could act as an efficient replacement for cloud.