Batch No 2.ppt
- 1. BLOCKCHAIN BASED FOOD TRACEABILITY SYSTEM GUIDED BY PROF. SHOBHANA.S M.E., SUBMITTED BY ASHIN GEO J.L ASWIN J.P RAHIN R.V
- 2. ABSTRACT • The globalization of the food supply chain industry has significantly emerged today. • Due to this, farm-to-fork food safety and quality certification have become very important. • Increasing threats to food security and contamination have led to the enormous need for a revolutionary traceability system. • This work proposed a traceability system based on blockchain technology for storage and query of product information in supply chain of agricultural products. • Leveraging the characteristics of decentralization, tamper-proof and traceability of blockchain technology, the transparency and credibility of traceability information increased. • A dual storage structure of ‘‘database + blockchain’’ on-chain and off-chain traceability information is constructed to reduce load pressure of the chain and realize efficient information query. • Blockchain technology combined with cryptography is proposed to realize the safe sharing of private information in the blockchain network.
- 3. Objective Of The Project • To designed and implemented the traceability system of fruits and vegetables agricultural products based on the non-tampering and traceable characteristics of blockchain.
- 5. S.No Title Author Journal &Year Methodolo gy Advantages Disadvant ages 1 Modeling and implementation of the vegetable supply chain traceability system JinyouHu aXuZhan g Science Direct (2013) Unified Modeling Language model Increase in sales and market share Reduced flexibility 2 Blockchain- based traceability model for grains and oils whole supply chain DONG Yunfeng, ZHANG Xin Food Science (2020) Credible traceability model for the whole supply chain It improves transparency throughout the supply chain and helps reconcile the documentation Increase in administrat ion workload
- 6. S. No Title Author Journal &Year Methodolo gy Advantages Disadvant ages 3 Blockchain-based Soybean Traceability in Agricultural Supply Chain Khaled Salah; Ni shara Nizamud din IEEE Access (2019) Ethereum blockchain and smart contracts secure, trusted, reliable, and efficient manner It create key escrow problem 4 Food safety traceability system based on blockchain and EPCIS Qijun Lin; Huai zhen Wang IEEE Access (2019) EPC Information Services It ensure the security of information and avoid spam attacks It reduce the amount of data of single node 5 Blockchain based secured information sharing protocol in supply chain management system with key distribution mechanism Sanjeev KumarD wivediRu hulAmin Science Direct (2020) Information sharing securely in the pharmaceut ical supply chain system The security analysis ensures that our protocol is robust Failure to maintain storage facilities
- 7. EXISTING SYSTEM An agro-food supply chain traceability system that utilizes the RFID (Radio-Frequency Identification) and blockchain technology. He believes it can bring traceability with trusted information into the entire agro-food supply chain, which would effectively guarantee food safety, by gathering, transferring and sharing the authentic data of agro-food in production, processing, warehousing, distribution and selling links.
- 8. DISADVANTAGES Certain areas may have weaker signals or interferences Fraud, gaining access and to unauthorized information It is Difficult for an RFID reader to read the information in case of RFID tags installed in metal or liquid containers
- 9. PROPOSED SYSTEM In this work designed and implemented the traceability system of fruits and vegetables agricultural products based on the non-tampering and traceable characteristics of blockchain. To overcome the problems of high data load pressure and poor private security of the blockchain traceability system as the data grows, an on- chain and off-chain data storage method using ‘‘database + blockchain’’ is proposed. The public information displayed to consumers is stored in the supply chain to the local database, whose hash value by SHA256 algorithm was upload to the blockchain system. The private information encrypted by the CBC encryption algorithm is stored into the blockchain for sharing with relevant companies.
- 10. ADVANTAGES It reduce the pressure of data load on the chain. The on-chain and off-chain storage structure, which can alleviate the storage pressure brought to the blockchain system due to the continuous increase of data under the condition of ensuring that the data cannot be tampered, so that the query rate significantly improved.
- 11. ARCHITECTURE
- 12. METHODOLOGY Traceability Information Privacy Protection Process Traceability Anti-Counterfeiting Process Module Display
- 13. Traceability Information Privacy Protection Process This work design a traceability information privacy protection data flow that private information is encrypted by deploying smart contract and uploaded to the blockchain together with the hash value of public information. The private information such as transaction data is encrypted by the Cipher Block Chaining (CBC) mode of the AES encryption algorithm. The required Key1 is randomly selected by the smart contract generate and upload encrypted ciphertext to the blockchain. In order to ensure the security of the Key1, this work used the Elliptic Curves Cryptography (ECC) to encrypt the Key1. The encrypted Public Key authorized the viewing node.
- 14. Conti.. The Public Key of the authorized viewing node and the Encrypted Key1 form a key-value pair, stored in the world state of the smart contract and written to the blockchain. When the relevant enterprise nodes view the private data on the blockchain, the current node private key is used to decrypt the Encrypted Key1 on the blockchain to obtain the original Key1, and the Key1 is used to decrypt the private information and view the private information.
- 15. Traceability Anti-Counterfeiting Process Users upload the traceability information of production, processing, logistics and sales to the system. After classification by system, the traceability information is divided into private information and public information. The private information is uploaded to blockchain after CBC encryption, and the public information is stored in the local database. The SHA256 algorithm is used to hash the public information. The hash value obtained is stored in the blockchain system, and the block number is returned. The block number is updated to the public information record corresponding to the database.
- 16. Module Display The system operation page includes eight modules which are my farm, base management, production operations, crop traceability, value-added services, system settings, big data analysis, and blockchain management modules shows the resume creation page. Users can set the traceability information displayed to consumers according to the traceability requirements, and the hash value of the information will be stored in the blockchain. Users can view the relevant information of the blockchain in real time, such as the number of nodes, the number of contracts, the number of blocks, and the number of transactions.
- 17. SCREENSHOTS
- 34. CONCLUSION In this work designed and implemented the traceability system of fruits and vegetables agricultural products based on the non-tampering and traceable characteristics of blockchain, and discussed the storage and query design of the system. To overcome the problems of high data load pressure and poor private security of the blockchain traceability system as the data grows, an on-chain and off-chain data storage method using ‘‘database + blockchain’’ is proposed. The public information displayed to consumers is stored in the supply chain to the local database, whose hash value by SHA256 algorithm was upload to the blockchain system. The private information encrypted by the CBC encryption algorithm is stored into the blockchain for sharing with relevant companies. The storage method proposed in this paper combines the actual situation, taking into account the need for encryption of corporate private information as well as the need for public supervision of supply chain public information, and reduce the pressure of data load on the chain. With the development of blockchain, in order to meet actual business needs, multi-chain is the future development direction.
- 35. FUTURE WORK For future research, will further explore the cross-chain technology between multiple chains and a new type of consensus mechanism suitable for traceability.
- 36. REFERENCES Aung M. M and Chang Y. S., (2014) ‘‘Traceability in a food supply chain: Safety and quality perspectives,’’ Food Control, vol. 39, pp. 172–184, May. Casino F., Kanakaris V., Dasaklis T. K., Moschuris S and Rachaniotis N. P., (2019) ‘‘Modeling food supply chain traceability based on blockchain technology,’’ IFAC-PapersOnLine, vol. 52, no. 13, pp. 2728–2733. Demestichas K., Peppes N., Alexakis T and Adamopoulou E., (2020) ‘‘Blockchain in agriculture traceability systems: A review,’’ Appl. Sci., vol. 10, no. 12, p. 4113, Jun. 2020. Desai A. N., Anyoha A., Madoff L. C and Lassmann B., (2019) ‘‘Changing epidemiology of listeria monocytogenes outbreaks, sporadic cases, and recalls globally: A review of ProMED reports from 1996 to 2018,’’ Int. J. Infectious Diseases, vol. 84, pp. 48–53, Jul. Francois G., Fabrice V and Didier M., (2020) ‘‘Traceability of fruits and vegetables,’’ Phytochemistry, vol. 173, May, Art. no. 112291.