contracts are automatically loaded and then executed according to their predefined logic (as specified bycodeHash). In Fig.1, we show a simple contract namedEtherBankin Solidity. Solidity is the statically typed
Each address has both a zero-knowledge balance (ZK-balance) and a plaintext balance. A secure commitment is used for the ZK-balance and a private computation circuit for creating the transfer method. The transfer is performed in a two-step procedure to achieve unlinkability of sender/receiver ...
TypeScript: Typed superset of JavaScript that compiles to plain JavaScript. Tailwind CSS: Utility-first CSS framework for styling. BIP39: Bitcoin Improvement Proposal for mnemonic seed phrases. JavaScript (ES6+): Programming language used for building the application. Git & GitHub: Version control ...
Attribute-based proxy re-encryption (ABPRE) [44] is an encryption mode. Proxy can convert ciphertext encrypted based on ciphertext policy (CP) or key policy (KP) into new re-encrypted ciphertext under the authorization of the data owner. The process does not change the plaintext information...
We implement Pub-SubMCS on the Ethereum blockchain using Solidity as the programming language. We use the brownie framework [44] to develop, test, and deploy smart contracts on Ganache. As the brownie framework is based on Python, we have written Python scripts to deploy the smart contracts...
Taking the Solidity language as an example, contract code written in the Solidity language is similar to class in an object-oriented programming language. A plurality of members can be stated in a contract, including a state variable, a function, a function modifier, an event, etc. The state...
Software programming is composed of graphics, with Ethernet and fieldbus communication interfaces, to simplify the complex vision measurement system into an easy-to-use intelligent vision measurement sensor suitable for industrial applications [21, 22]. 3. Embedded Sensors and Artificial Intelligence Block...
In ABAC, you can use struct (or a programming language-based class instance) instead of strings to represent model elements. At the same time, model elements can be formulated according to specific business access rules. Policy files can define detailed policies and the requests can include ...
IoT devices communicate and exchange data with each other and with the blockchain network, which requires secure communication channels and data privacy. However, IoT devices may lack the necessary encryption capabilities or may transmit data in plaintext, making them vulnerable to eavesdropping, data...
A computer program, which may also be referred to or described as a program, software, a software application, an app, a module, a software module, an engine, a script, or code, can be written in any form of programming language, including compiled or interpreted languages, or declarative...