Earticle

Background/Objectives: With the rapid development of Internet technology, more and more Internet users tend to store their data and information in the cloud, and the security of the existing cloud storage system has been criticized by people, which is not conducive to protecting the data and information security of users. Therefore, how to effectively guarantee the security of cloud user data becomes more and more important. Security cloud storage system is the key to solve this problem. Methods/Statistical analysis: A secure cloud storage system is implemented for the user’s cloud data security. Its main function is: in the user login phase, the strict user identity authentication method is adopted to control the user’s access rights and prevent illegal users from logging in. Firstly, the identify authentication scheme based on zero knowledge proof is proposed. Secondly, in the user data upload stage, the user data is split. Finally, the encryption algorithm based on elliptic curve is proposed to encrypt the user’s file splitting table. Findings: The experimental results show that, in the user identify authentication stage, compared with the traditional user authentication method, the security of user identify authentication can be greatly improved by using the identify authentication method based on zero-knowledge proof. Improvements/Applications: The secure cloud storage system based on ellipse encryption developed in this thesis can realize the security of user's data by encryption while considering the efficiency of data upload and download, and has a broad application prospect.

Background/Objectives: This paper presents the hardware implementation of SpoC Lightweight Cryptography (LWC) candidate for low-cost devices. Methods/Statistical analysis: The proposed hardware implementation of the SpoC Authenticated Encryption with Associated Data (AEAD) is capable of both encryption and decryption. The design was implemented on the Virtex-4 Field FPGA using Xilinx ISE Design Suite. The synthesis results reported 951 slices at 246.61 MHz maximum clock frequency. The encryption and decryption routines take 589 and 590 cycles. Findings: This work used 30% fewer LUTs for both encryption and decryption as compared to the existing work. The decrease in area in this work is a result of the optimization of the implementation for low-cost devices while the existing work implemented the basic iterative architecture without optimizing. This work achieved almost two times the frequency of the existing SpoC implementation. The existing SpoC implementation used 150 fewer cycles as compared to this work. This is because this work implemented the SpoC using extra registers in other to reduce the critical path which increases the frequency. Improvements/Applications: For future works, the proposed SpoC AEAD will be combined with other security protocols to form a lightweight cryptographic System-on-Chip (SoC).

Background/Objectives: The Korean Ministry of Education is planning to introduce artificial intelligence education into the 2022 revised curriculum, which will be applied from 2025. To this end, it has been announced that related learning materials will be developed starting next year to expand AI education in Elementary, Middle and High school classes. To this end, it has been announced that related learning materials will be developed starting next year to expand AI education in Elementary, Middle and High school classes. It is said that high schools will be opening new AI-related courses from next year. As everyone calls artificial intelligence technology, there is no technology education anywhere else in artificial intelligence education. But this scene is very familiar. It's like watching a déjà vu. It was the same when SW education was introduced into the 2015 revised curriculum. Although SW is an area of technology, there was no technology education in SW education. As a result, technology teachers are facing big and small difficulties in the school field. But wouldn't it be possible to experience the same situation again like Deja Vu? At first, I didn't know how to suffer so far, so even if I did, I couldn't go through the same thing twice. So, what should our respected technology teachers prepare for?