RFC 7748 · INFORMATIONAL · 2016
SUN · 14 JUN 2026
Elliptic Curves for Security
Overview
RFC 7748, “Elliptic Curves for Security”, is an Informational document published in January 2016 by A. Langley, M. Hamburg, S. Turner. The canonical text is published by the RFC Editor.
Abstract
This memo specifies two elliptic curves over prime fields that offer a high level of practical security in cryptographic applications, including Transport Layer Security (TLS). These curves are intended to operate at the ~128-bit and ~224-bit security level, respectively, and are generated deterministically based on a list of required properties.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 7748 is hosted at rfc-editor.org. Available in TXT,HTML.
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