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feat(tests): tests for ecrecover precompile #1685

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1 change: 1 addition & 0 deletions docs/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ Test fixtures for use by clients are available for each release on the [Github r
- 🐞 Fix BALs opcode OOG test vectors by updating the Amsterdam commit hash in specs and validating appropriately on the testing side ([#2293](https://github.com/ethereum/execution-spec-tests/pull/2293)).
- ✨ Fix test vector for BALs SSTORE with OOG by pointing to updated specs; add new boundary conditions cases for SSTORE w/ OOG ([#2297](https://github.com/ethereum/execution-spec-tests/pull/2297)).
- ✨ Expand cases to test *CALL opcodes causing OOG ([#1703](https://github.com/ethereum/execution-specs/pull/1703)).
- ✨ Add `ecrecover` precompile tests originating form `evmone` unittests ([#1685](https://github.com/ethereum/execution-specs/pull/1685))

## [v5.3.0](https://github.com/ethereum/execution-spec-tests/releases/tag/v5.3.0) - 2025-10-09

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282 changes: 282 additions & 0 deletions tests/frontier/precompiles/test_ecrecover.py
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@@ -0,0 +1,282 @@
"""Tests ecrecover precompiled contract."""

import pytest
from execution_testing import (
Account,
Alloc,
Environment,
StateTestFiller,
Transaction,
)
from execution_testing.forks.forks.forks import Byzantium
from execution_testing.forks.helpers import Fork
from execution_testing.vm import Opcodes as Op


@pytest.mark.valid_from("Frontier")
@pytest.mark.parametrize(
"msg_hash, v, r, s, output",
[
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"73b1693892219d736caba55bdb67216e485557ea6b6af75f37096c9aa6a5a75f"
),
bytes.fromhex(
"eeb940b1d03b21e36b0e47e79769f095fe2ab855bd91e3a38756b7d75a9c4549"
),
bytes.fromhex(
"000000000000000000000000a94f5374fce5edbc8e2a8697c15331677e6ebf0b"
),
id="valid_signature_1",
),
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001b"
),
bytes.fromhex(
"7af9e73057870458f03c143483bc5fcb6f39d01c9b26d28ed9f3fe23714f6628"
),
bytes.fromhex(
"3134a4ba8fafe11b351a720538398a5635e235c0b3258dce19942000731079ec"
),
bytes.fromhex(
"0000000000000000000000009a04aede774152f135315670f562c19c5726df2c"
),
id="valid_signature_2",
),
# z >= Order
pytest.param(
bytes.fromhex(
"fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001b"
),
bytes.fromhex(
"7af9e73057870458f03c143483bc5fcb6f39d01c9b26d28ed9f3fe23714f6628"
),
bytes.fromhex(
"3134a4ba8fafe11b351a720538398a5635e235c0b3258dce19942000731079ec"
),
bytes.fromhex(
"000000000000000000000000b32cf3c8616537a28583fc00d29a3e8c9614cd61"
),
id="z_gte_order",
),
pytest.param(
bytes.fromhex(
"6b8d2c81b11b2d699528dde488dbdf2f94293d0d33c32e347f255fa4a6c1f0a9"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001b"
),
bytes.fromhex(
"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
),
bytes.fromhex(
"6b8d2c81b11b2d699528dde488dbdf2f94293d0d33c32e347f255fa4a6c1f0a9"
),
b"",
id="invalid_signature_1",
),
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"0000000000000000000000000000000000000000000000000000000000000000"
),
bytes.fromhex(
"eeb940b1d03b21e36b0e47e79769f095fe2ab855bd91e3a38756b7d75a9c4549"
),
b"",
id="invalid_signature_2",
),
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"73b1693892219d736caba55bdb67216e485557ea6b6af75f37096c9aa6a5a75f"
),
bytes.fromhex(
"0000000000000000000000000000000000000000000000000000000000000000"
),
b"",
id="invalid_signature_3",
),
# r >= Order
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141"
),
bytes.fromhex(
"eeb940b1d03b21e36b0e47e79769f095fe2ab855bd91e3a38756b7d75a9c4549"
),
b"",
id="invalid_signature_3",
),
# s >= Order
pytest.param(
bytes.fromhex(
"18c547e4f7b0f325ad1e56f57e26c745b09a3e503d86e00e5255ff7f715d3d1c"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"73b1693892219d736caba55bdb67216e485557ea6b6af75f37096c9aa6a5a75f"
),
bytes.fromhex(
"fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141"
),
b"",
id="s_gte_order",
),
# u1 == u2 && R == G
pytest.param(
bytes.fromhex(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001b"
),
bytes.fromhex(
"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
),
bytes.fromhex(
"3a2db9fe7908dcc36d81824d2338fc3dd5ae2692e4c6790043d7868872b09cd1"
),
bytes.fromhex(
"0000000000000000000000002e4db28b1f03ec8acfc2865e0c08308730e7ddf2"
),
id="u1_eq_u2_R_eq_G",
),
# u1 == -u2 && R == -G
pytest.param(
bytes.fromhex(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
),
bytes.fromhex(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
),
bytes.fromhex(
"0000000000000000000000002e4db28b1f03ec8acfc2865e0c08308730e7ddf2"
),
id="u1_eq_neg_u2_R_eq_neg_G",
),
# 13u1 == u2 && R == -13G
pytest.param(
bytes.fromhex(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001b"
),
bytes.fromhex(
"f28773c2d975288bc7d1d205c3748651b075fbc6610e58cddeeddf8f19405aa8"
),
bytes.fromhex(
"533e9827446324ac92450a05ef04622bc0081f8d5b394e4d7b514ed35c946ee9"
),
b"",
id="13u1_eq_u2_R_eq_neg_13G",
),
# 13u1 == u2 && R == 13G
pytest.param(
bytes.fromhex(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
),
bytes.fromhex(
"000000000000000000000000000000000000000000000000000000000000001c"
),
bytes.fromhex(
"f28773c2d975288bc7d1d205c3748651b075fbc6610e58cddeeddf8f19405aa8"
),
bytes.fromhex(
"533e9827446324ac92450a05ef04622bc0081f8d5b394e4d7b514ed35c946ee9"
),
bytes.fromhex(
"000000000000000000000000fc4b7e97f115ac81f9a6997254892b45e8159d46"
),
id="13u1_eq_u2_R_eq_13G",
),
],
)
def test_precompiles(
state_test: StateTestFiller,
pre: Alloc,
fork: Fork,
msg_hash: bytes,
v: bytes,
r: bytes,
s: bytes,
output: bytes,
) -> None:
"""
Tests the behavior of `ecrecover` precompiled contract.
"""
env = Environment()

# Memory
hash_offset = 0
v_offset = 32
r_offset = 64
s_offset = 96
ret_offset = 128

account = pre.deploy_contract(
Op.MSTORE(hash_offset, msg_hash)
+ Op.MSTORE(v_offset, v)
+ Op.MSTORE(r_offset, r)
+ Op.MSTORE(s_offset, s)
+ Op.CALL(
gas=50_000,
address="0x01", # ecrecover precompile address
args_offset=hash_offset,
args_size=4 * 32,
ret_offset=ret_offset,
ret_size=32,
)
+ Op.SSTORE(0, Op.MLOAD(ret_offset))
+ Op.STOP,
storage={0: 0xDEADBEEF},
)

tx = Transaction(
to=account,
sender=pre.fund_eoa(),
gas_limit=1_000_000,
protected=fork >= Byzantium,
)

post = {account: Account(storage={0: output})}

state_test(env=env, pre=pre, post=post, tx=tx)
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