## 4 The SEME-TDHM Algorithm
### Encryption Process
The work was supported by the National Natural Science Foundation of China (Grant Nos.61927803, 61071025, 61502538, and 61501525) and the Natural Science Foundation of Hunan Province of China (Grant No. 2015 JJ3157). The original contributions presented in this study are included in the article. Further inquiries can be directed to the corresponding author. The authors declare no conflicts of interest. ## References

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