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Implement a native p256Verify precompile for secp256r1 signature verification and wire it into the Berlin precompile set and test harness. Added core/vm/contracts.go implementation (160-byte input, returns 32-byte true on success), updated precompile maps and evm tests to include the new address, and registered the gas cost via params.P256VerifyGas (params updated). Included comprehensive test vectors and benchmarks in core/vm/testdata/precompiles/p256Verify.json and test entries in core/vm/contracts_test.go and core/vm/evm_test.go. Added crypto/secp256r1/verifier.go and verifier_test.go providing the verification logic and unit tests.
YoshihitoAso
changed the title
purplesmoke05
approved these changes
Mar 16, 2026
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close #135
This pull request adds support for secp256r1 (P-256) signature verification as a new Ethereum precompiled contract, making it available at address
0x0100for the "Berlin" fork.New P-256 Signature Verification Precompile:
p256Verifyfor secp256r1 (P-256) signature verification, accessible at address0x0100in the Berlin precompile set (core/vm/contracts.go). [1] [2]crypto/secp256r1, including public key validation and signature checking (crypto/secp256r1/verifier.go).params/protocol_params.go(P256VerifyGas).Testing and Integration:
core/vm/contracts_test.go,crypto/secp256r1/verifier_test.go). [1] [2] [3]core/vm/evm_test.go).