PDF Publication Title:
Text from PDF Page: 009
4 - - - - Tamper-resistance. The NFT metadata and its trading records are persis- tently stored and cannot be manipulated once the transactions are deemed as confirmed. Usability.EveryNFThasthemostup-to-dateownershipinformation,which is user-friendly and information-clearly. Atomicity. Trading NFTs can be completed in one atomic, consistent, iso- lated, and durable (ACID) transaction. The NFTs can run in the same shared execution state. Tradability. Every NFTs and its corresponding products can be arbitrarily traded and exchanged. Security Evaluation An NFT system is a combination technology that consists of blockchain, storage and web application. Security evaluation on the NFT system is challenging since each component may become an attacking interface that makes the whole system really vulnerable against the attacker. Thus, we adopt the STRIDE threat and risk evaluation [106], which covers all security aspects of a system: authenticity, integrity, non-repudiability, availability and access control. We investigate the potential security issues and propose some of the corresponding defense measures to address these issues (see Table 1). Spoofing. Spoofing is the ability to impersonate another entity (for example, another person or computer) on the system, which corresponds to authenticity. When a user interacts to mint or sells NFTs, a malicious attacker may exploit authentication vulnerabilities or steal the user’s private key to transfer the own- ership of NFTs illegally. Thus, we recommend having a formal verification for the NFT smart contract and to use the cold wallet to prevent private key leakage. Tampering. Tampering refers to the malicious modification of NFT data, which violates integrity. Assume that the blockchain is a robust public transaction ledger [85,86] and a hash algorithm is preimage resistance and second preimage resistance [104]. The metadata and ownership of NFTs cannot be maliciously modified after the transaction is confirmed. However, the data stored outside blockchain may be manipulated. Therefore, we recommend users to send both the hash data as well as the original data to the NFT buyer when trading/exchanging NFT-related properties. Repudiation. Repudiation refers to the situation where the author of a state- ment cannot dispute [121], which is related to the security property of non- repudiability [95]. In particular, the fact that a user sends NFT to another user cannot deny. This is guaranteed by the security of the blockchain and the un- forgeability property of a signature scheme. However, the hash data may be tampered by a malicious attacker, or the hash data may bind with an attacker’s 9PDF Image | NFTs Non-Fungible Tokens Focus
PDF Search Title:
NFTs Non-Fungible Tokens FocusOriginal File Name Searched:
nft-opportunities-challenges.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)