• Journal of the Korean Institute of Oriental Medical Informatics
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• v.20 no.1
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• pp.1-8
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• 2014

Objectives: This study aimed to find out the origin, efficiency in sasang constitutional medicine and dosage of Mu tong. Methods: Investigation and analysis was been done through 15 literatures like the pharmacopoeia of the five countries in east Asia, the literatures about sasang constitutional medicine and so on. Results and conclusion: The species of Mu tong in Korea is identical with the Mu tong in China, but different from Chuan mu tong and Guan mu tong in China. Mu tong is a kind of medicine using by kidney can be use at most 12 qian (about 45g) a day when treating heat closing in small intestine, edema, headache, dysentery and difficult urination on Soyangin(SY).

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.3
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• pp.972-985
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• 2022

In the year 2020, a new lightweight block cipher µ² is proposed. It has both good software and hardware performance, and it is especially suitable for constrained resource environment. However, the security evaluation on µ² against impossible differential cryptanalysis seems missing from the specification. To fill this gap, an impossible differential cryptanalysis on µ² is proposed. In this paper, firstly, some cryptographic properties on µ² are proposed. Then several longest 7-round impossible differential distinguishers are constructed. Finally, an impossible differential cryptanalysis on µ² reduced to 10 rounds is proposed based on the constructed distinguishers. The time complexity for the attack is about 2^69.63 10-round µ² encryptions, the data complexity is O(2⁴⁸), and the memory complexity is 2^63.57 Bytes. The reported result indicates that µ² reduced to 10 rounds can't resist against impossible differential cryptanalysis.