Certificate Authority(CA)

A certificate authority (CA) is a trusted entity that issues electronic documents that verify a digital entity’s identity on the Internet. The electronic documents, which are called digital certificates, are an essential part of secure communication and play an important part in the public key infrastructure (PKI). Certificates typically include the owner's public key, the expiration date of the certificate, the owner's name and other information about the public key owner. Operating systems and browsers maintain lists of trusted CA root certificates to verify certificates that a CA has issued and signed.CAs issue Digital Certificates , and these certificates are used to protect information, encrypt billions of transactions, and enable secure communication.