def _CheckSig(sig, pubkey, script, txTo, inIdx, err_raiser):
key = bitcoin.core.key.CECKey()
key.set_pubkey(pubkey)
if len(sig) == 0:
return False
hashtype = _bord(sig[-1])
sig = sig[:-1]
# Raw signature hash due to the SIGHASH_SINGLE bug
#
# Note that we never raise an exception if RawSignatureHash() returns an
# error code. However the first error code case, where inIdx >=
# len(txTo.vin), shouldn't ever happen during EvalScript() as that would
# imply the scriptSig being checked doesn't correspond to a valid txout -
# that should cause other validation machinery to fail long before we ever
# got here.
(h, err) = RawSignatureHash(script, txTo, inIdx, hashtype)
return key.verify(h, sig)
def _CheckSig(sig, pubkey, script, txTo, inIdx, err_raiser):
key = bitcoin.core.key.CECKey()
key.set_pubkey(pubkey)
if len(sig) == 0:
return False
hashtype = _bord(sig[-1])
sig = sig[:-1]
# Raw signature hash due to the SIGHASH_SINGLE bug
#
# Note that we never raise an exception if RawSignatureHash() returns an
# error code. However the first error code case, where inIdx >=
# len(txTo.vin), shouldn't ever happen during EvalScript() as that would
# imply the scriptSig being checked doesn't correspond to a valid txout -
# that should cause other validation machinery to fail long before we ever
# got here.
(h, err) = RawSignatureHash(script, txTo, inIdx, hashtype)
return key.verify(h, sig)
