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ecc: allow tests to disable ecdsa R-value grinding

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see https://github.com/spesmilo/electrum/pull/7453#issuecomment-912594926
This commit is contained in:
SomberNight
2021-09-03 16:48:29 +02:00
parent 2968720fb1
commit a39bfba2d9
2 changed files with 35 additions and 5 deletions
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24
electrum/tests/test_bitcoin.py
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@@ -86,6 +86,24 @@ def needs_test_with_all_chacha20_implementations(func):
return run_test
def disable_ecdsa_r_value_grinding(func):
"""Function decorator to run a unit test with ecdsa R-value grinding disabled.
This is used when we want to pass test vectors that were created without R-value grinding.
(see https://github.com/bitcoin/bitcoin/pull/13666 )
NOTE: this is inherently sequential;
tests running in parallel would break things
"""
def run_test(*args, **kwargs):
is_grinding = ecc.ENABLE_ECDSA_R_VALUE_GRINDING
try:
ecc.ENABLE_ECDSA_R_VALUE_GRINDING = False
func(*args, **kwargs)
finally:
ecc.ENABLE_ECDSA_R_VALUE_GRINDING = is_grinding
return run_test
class Test_bitcoin(ElectrumTestCase):
def test_libsecp256k1_is_available(self):
@@ -221,6 +239,12 @@ class Test_bitcoin(ElectrumTestCase):
sig2 = eckey2.sign_transaction(bfh('642a2e66332f507c92bda910158dfe46fc10afbf72218764899d3af99a043fac'))
self.assertEqual('30440220618513f4cfc87dde798ce5febae7634c23e7b9254a1eabf486be820f6a7c2c4702204fef459393a2b931f949e63ced06888f35e286e446dc46feb24b5b5f81c6ed52', sig2.hex())
@disable_ecdsa_r_value_grinding
def test_sign_transaction_without_ecdsa_r_value_grinding(self):
eckey1 = ecc.ECPrivkey(bfh('7e1255fddb52db1729fc3ceb21a46f95b8d9fe94cc83425e936a6c5223bb679d'))
sig1 = eckey1.sign_transaction(bfh('5a548b12369a53faaa7e51b5081829474ebdd9c924b3a8230b69aa0be254cd94'))
self.assertEqual('3045022100902a288b98392254cd23c0e9a49ac6d7920f171b8249a48e484b998f1874a2010220723d844826828f092cf400cb210c4fa0b8cd1b9d1a7f21590e78e022ff6476b9', sig1.hex())
@needs_test_with_all_aes_implementations
def test_aes_homomorphic(self):
"""Make sure AES is homomorphic."""