Add ECDSA signature support over the secp256r1 curve
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corelib
signatures
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- Rust
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Descripción
With Fusaka upgrade, Ethereum adds precompiles for the secp256r1 curve ([EIP-7951](https://eips.ethereum.org/EIPS/eip-7951)). The motivation is to enable native support for signatures generated by modern secure hardware including Apple Secure Enclave, Android Keystore, and FIDO2/WebAuthn devices.
We should probably add support for this signature scheme as well under the name `ecdsa_p256_keccak`.
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