Overview
Permissioned blockchains combine the benefits of DLT with the control of a centralized system. They are often used by businesses that need to share data securely with partners but don't want the data to be public.
Key Features
- Access Control: An administrator or a set of rules determines who can join.
- Identity: Participants are usually known and verified.
- Efficiency: Can use faster consensus mechanisms (like PoA) because participants are trusted.
Examples
- Hyperledger Fabric
- R3 Corda