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coinstats: Fix hash_serialized2 calculation

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The legacy serialization was vulnerable to maleation and is fixed by
adopting the same serialization procedure as was already in use for
MuHash.

This also includes necessary test fixes where the hash_serialized2 was
hardcoded as well as correction of the regtest chainparams.

Co-authored-by: Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
This commit is contained in:
Fabian Jahr
2023-10-18 17:06:36 +02:00
parent c1106cfef5
commit 351370a1d2
8 changed files with 49 additions and 54 deletions
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10
test/functional/feature_assumeutxo.py
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@@ -94,8 +94,10 @@ class AssumeutxoTest(BitcoinTestFramework):
self.log.info(" - snapshot file with alternated UTXO data")
cases = [
[b"\xff" * 32, 0, "29926acf3ac81f908cf4f22515713ca541c08bb0f0ef1b2c3443a007134d69b8"], # wrong outpoint hash
[(1).to_bytes(4, "little"), 32, "798266c2e1f9a98fe5ce61f5951cbf47130743f3764cf3cbc254be129142cf9d"], # wrong outpoint index
[b"\xff" * 32, 0, "05030e506678f2eca8d624ffed97090ab3beadad1b51ee6e5985ba91c5720e37"], # wrong outpoint hash
[(1).to_bytes(4, "little"), 32, "7d29cfe2c1e242bc6f103878bb70cfffa8b4dac20dbd001ff6ce24b7de2d2399"], # wrong outpoint index
[b"\x81", 36, "f03939a195531f96d5dff983e294a1af62af86049fa7a19a7627246f237c03f1"], # wrong coin code VARINT((coinbase ? 1 : 0) | (height << 1))
[b"\x83", 36, "e4577da84590fb288c0f7967e89575e1b0aa46624669640f6f5dfef028d39930"], # another wrong coin code
]
for content, offset, wrong_hash in cases:
@@ -103,7 +105,7 @@ class AssumeutxoTest(BitcoinTestFramework):
f.write(valid_snapshot_contents[:(32 + 8 + offset)])
f.write(content)
f.write(valid_snapshot_contents[(32 + 8 + offset + len(content)):])
expected_error(log_msg=f"[snapshot] bad snapshot content hash: expected ef45ccdca5898b6c2145e4581d2b88c56564dd389e4bd75a1aaf6961d3edd3c0, got {wrong_hash}")
expected_error(log_msg=f"[snapshot] bad snapshot content hash: expected 61d9c2b29a2571a5fe285fe2d8554f91f93309666fc9b8223ee96338de25ff53, got {wrong_hash}")
def run_test(self):
"""
@@ -150,7 +152,7 @@ class AssumeutxoTest(BitcoinTestFramework):
assert_equal(
dump_output['txoutset_hash'],
'ef45ccdca5898b6c2145e4581d2b88c56564dd389e4bd75a1aaf6961d3edd3c0')
'61d9c2b29a2571a5fe285fe2d8554f91f93309666fc9b8223ee96338de25ff53')
assert_equal(dump_output['nchaintx'], 300)
assert_equal(n0.getblockchaininfo()["blocks"], SNAPSHOT_BASE_HEIGHT)