Now I can’t understand what my graduation thesis is talking about...This article records some basic concepts
Blockchain
Blockchain is a ledger jointly maintained by all users. This ledger cannot be tampered with at will. The account is transparent, open and reliable, and has the characteristics of decentralization.
https://www.bilibili.com/video/BV1J7411Z7T9?from=search&seid=3743837390725954446
Transaction-Based Access Control (TBAC)
"Transaction" is derived from the term "transaction" used in the blockchain. It actually refers to a signed data packet that stores asset exchange information . In fact, this type of transaction signed on the blockchain is for all other parties Transparent. TBAC is a new method to protect digital assets, resources or objects by using the medium of transaction record property rights changes. TBAC is built on the basis of the attribute-based access control model ABAC .
Strategy structure
A strategy set consists of a strategy combination algorithm and multiple strategies. Each strategy contains multiple rules and a rule combination algorithm. The conditions and effects are specified in each rule.
