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k256 (RustCrypto)

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RustCrypto/elliptic-curves https://crates.io/crates/k256

k256 from RustCrypto is a pure Rust secp256k1 implementation covering ECDSA signing, verification, public key recovery, Schnorr, and ECDH, and it sits under reth, Alloy, and most Rust tooling. Rust builders depend on it directly when they handle signatures themselves.

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