NIST P-256 elliptic curve (a.k.a. prime256v1, secp256r1) types implemented in terms of traits from the elliptic-curve crate.
Optionally includes an arithmetic feature providing scalar and affine/projective point types with support for constant-time scalar multiplication, which can be used to implement protocols such as ECDH.
The elliptic curve arithmetic contained in this crate has never been independently audited!
This crate has been designed with the goal of ensuring that secret-dependent operations are performed in constant time (using the subtle crate and constant-time formulas). However, it has not been thoroughly assessed to ensure that generated assembly is constant time on common CPU architectures.
USE AT YOUR OWN RISK!
ecdh feature.ecdsa feature.NIST P-256 is a Weierstrass curve specified in FIPS 186-4: Digital Signature Standard (DSS):
https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-4.pdf
Also known as prime256v1 (ANSI X9.62) and secp256r1 (SECG), it‘s included in the US National Security Agency’s “Suite B” and is widely used in protocols like TLS and the associated X.509 PKI.
Rust 1.56 or higher.
Minimum supported Rust version can be changed in the future, but it will be done with a minor version bump.
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