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What is Registration Authority (RA)?

As discussed, a PKI is a system of people, processes, and technologies used to manage, create, and revoke digital certificates. This allows multiple users to communicate privately, even on a public network. A registration authority (RA) works with this system, as another integral part of building an enterprise PKI and CA infrastructure. In the simplest terms, an RA is a sub-set of a CA, and eases the process of submitting certificate signing requests, verifying these requests, and passing this information to the CA to issue the appropriate certificates.

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