Blockchain has drawn attention as the next-generation financial technology due to its\nsecurity that suits the informatization era. In particular, it provides security through the authentication\nof peers that share virtual cash, encryption, and the generation of hash value. According to the\nglobal financial industry, the market for security-based blockchain technology is expected to grow to\nabout USD 20 billion by 2020. In addition, blockchain can be applied beyond the Internet of Things\n(IoT) environment; its applications are expected to expand. Cloud computing has been dramatically\nadopted in all IT environments for its efficiency and availability. In this paper, we discuss the concept\nof blockchain technology and its hot research trends. In addition, we will study how to adapt\nblockchain security to cloud computing and its secure solutions in detail.
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