[−][src]Crate k256
K-256 (secp256k1) elliptic curve.
⚠️ Security Warning
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!
About K-256 (secp256k1)
K-256 is a Koblitz curve typically referred to as "secp256k1". The "K-256" name follows NIST notation where P = prime fields, B = binary fields, and K = Koblitz curves (defined over F₂).
The curve is specified as secp256k1
by Certicom's SECG in
"SEC 2: Recommended Elliptic Curve Domain Parameters":
https://www.secg.org/sec2-v2.pdf
It's primarily notable for usage in Bitcoin and other cryptocurrencies.
Minimum Supported Rust Version
Rust 1.41 or higher.
Minimum supported Rust version can be changed in the future, but it will be done with a minor version bump.
Re-exports
pub use elliptic_curve; |
Modules
ecdh | feature="ecdh" Elliptic Curve Diffie-Hellman (Ephemeral) Support. |
ecdsa | feature="ecdsa-core" Elliptic Curve Digital Signature Algorithm (ECDSA). |
test_vectors | feature="test-vectors" secp256k1 test vectors |
Structs
AffinePoint | feature="arithmetic" A point on the secp256k1 curve in affine coordinates. |
ProjectivePoint | feature="arithmetic" A point on the secp256k1 curve in projective coordinates. |
Scalar | feature="arithmetic" An element in the finite field modulo curve order. |
Secp256k1 | K-256 (secp256k1) elliptic curve. |
Type Definitions
CompressedPoint | K-256 Compressed Curve Point. |
ElementBytes | K-256 Serialized Field Element. |
NonZeroScalar | Non-zero scalar value. |
PublicKey | K-256 (secp256k1) Public Key. |
SecretKey | K-256 (secp256k1) Secret Key. |
UncompressedPoint | K-256 Uncompressed Curve Point. |