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2.3.2.4 Private Networks
return to Network Access Control
A private network limits access to the network to individuals or nodes granted and verified to have permission to participate in joining, leaving, reading, writing, and auditing activities on the network. A participant joins a private network only through an authentic and verified invitation; validation is performed either by the network operator(s) or using a clearly defined set of protocols implemented by the network1). Recently, the idea that a Private Network is secure has been seriously challenged by the Zero Trust Security Model which basically states that establishing a secure perimeter is not enough to establish a trust to the individual or the machine. Especially with the advent of cloud-based architectures.
Benefits of Private Networks
- Enterprise Permissioned2):
The enterprise controls the resources and access to the blockchain, hence private and/or permissioned.
- Faster Transactions3):
When you distribute the nodes locally, but also have far fewer nodes that participate in the ledger, performance is faster.
- Better Scalability4):
Being able to add nodes and services on demand can provide a great advantage to the enterprise.
- Compliance Support5):
As an enterprise, you would likely have compliance requirements to adhere to; having control of your infrastructure enhances ability to satisfy this requirement more seamlessly.
- Consensus More Efficient (fewer nodes)6):
Enterprise or private blockchains have fewer nodes and usually a different consensus algorithm, such as BFT vs PoW.
