1 stable release
new 2.2.2 | Apr 30, 2025 |
---|
#784 in Magic Beans
132 downloads per month
Used in 42 crates
(4 directly)
120KB
2K
SLoC
Instructions for the [secp256r1 native program][np]. [np]: https://docs.solana.com/developing/runtime-facilities/programs#secp256r1-program
Note on Signature Malleability: This precompile requires low-S values in signatures (s <= half_curve_order) to prevent signature malleability. Signature malleability means that for a valid signature (r,s), (r, order-s) is also valid for the same message and public key.
This property can be problematic for developers who assume each signature is unique. Without enforcing low-S values, the same message and key can produce two different valid signatures, potentially breaking replay protection schemes that rely on signature uniqueness.
Dependencies
~2.3–9MB
~90K SLoC