Permissioned blockchains maintain an access control layer to allow certain actions to be performed only by certain identifiable participants. These blockchains differ from public as well as private blockchains.
As the name suggests permissioned blockchain is called so because only the privileged ones can join it. Users can become a part of the chain with the help of a coded key or a sort of an invitation received from the masters of the given system.
In such a way not only an additional layer of security is formed, but the supervision over each of the links in the chain is provided. It can control everything — who, when, under which circumstances sees or takes this or that action.
It can also control who operates as a node and who only uses the products of the nodes' work.
The number of enterprises and governments implementing smart contracts, distributed ledgers and other blockchain-based features is ever growing.
Some applications, however, are known that include: Financial transactions,Logistics,Medicine,Government,Energy supply
Essentially, the process of acquiring a corporate permissioned blockchain looks like this:
Permissioned Blockchains’ Are More Cost Effective