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POC for ECH support in curl and libcurl

From: Niall O'Reilly via curl-library <>
Date: Sun, 02 May 2021 11:53:50 +0100


I would like to let people know of a proof-of-concept
implementation of ECH in curl and libcurl. This uses
OpenSSL as back-end and interoperates with Cloudflare’s
demonstration server.

For more information, please see

Best regards.
Niall O’Reilly
Received on 2021-05-02