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How we built Origin CA: Web Crypto
GlobalSign has created a client-side PKI implementation to make certificates more secure. The open-source JavaScript library pkijs implements the formats that are used in PKI applications like signing, encryption, certificate requests, OCSP and TSP requests/responses. It is built on WebCrypto (Web Cryptography API) and requires no plug-ins. And now, CloudFlare has built “Origin CA” with it to make it easier to secure the connection between CloudFlare and the origin server.