In Hyperledger Fabric, certificates primarily provide identity for various actors within the network,
such as peers, orderers, and clients. These certificates facilitate not just node-to-node
communication and data integrity but also contribute significantly to the security measures of the
network, such as authentication and authorization processes. Importantly, these certificates are
utilized in TLS (Transport Layer Security) protocols to secure communications between nodes on the
network. Fabric utilizes X.509 certificates for these purposes, which are issued by a Certificate
Authority (CA) within the network .
