%0 Journal Article %A Zhang, Lejun %A Peng, Minghui %A Wang, Weizheng %A Cui, Shuna %A Kim, Seokhoon %D 2021 %J Computers, Materials \& Continua %@ 1546-2226 %V 66 %N 1 %P 499--515 %T Secure and Efficient Data Storage and Sharing Scheme Based on Double Blockchain %M doi:10.32604/cmc.2020.012205 %U http://www.techscience.com/cmc/v66n1/40461