crysol is a simple and secure secp256k1 crypto library for EVM applications
High-Level: SecretKey uint \in [1, Q) PublicKey Point
Arithmetic: Field: Felt uint \in [0, P)
Point:
Point (Felt, Felt)
ProjectivePoint (Felt, Felt, Felt)
While types increase costs, it provides more security.
If not using .wrap(), MUST NOT be able to construct invalid object.
tryXXX functions' return value is undefined if !ok. unsafeXXX functions' behaviour undefined if !ok.
NEVER construct types yourself:
- DON't .wrap
- DON't PublicKey(x, y), Point(x, y), etc
Audit Greps:
- grep -rn "unsafe" src/
- grep -rn "wrap" src/
- grep -rn "PublicKey(" src/
- grep -rn "Point(" src/
- grep -rn "ProjectivePoint(" src/
- grep -rn "Signature(" src/ TODO: ???
ECDSA and Schnorr are supported
TODO: general parsing functions: tryPublicKeyFromBlob(bytes); publicKeyFromBlob(bytes); tryPointFromBlob(bytes); pointFromBlob(bytes);