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Fixed output of BigNumber::AsByteArray when generated array is shorter than requested size thx Shauren

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zamalaev 2020-02-20 21:00:00 +00:00 • committed by Antz
parent c8d020c7ea
commit c604fd3cc8
1 changed files with 6 additions and 9 deletions
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15
src/shared/Auth/BigNumber.cpp
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@ -198,23 +198,20 @@ uint8* BigNumber::AsByteArray(int minSize)
uint8 *BigNumber::AsByteArray(int minSize, bool reverse) uint8 *BigNumber::AsByteArray(int minSize, bool reverse)
{ {
int length = (minSize >= GetNumBytes()) ? minSize : GetNumBytes(); int numBytes = GetNumBytes();
int length = (minSize >= numBytes) ? minSize : numBytes;
if (_array) delete[] _array;
{
delete[] _array;
_array = NULL;
}
_array = new uint8[length]; _array = new uint8[length];
// If we need more bytes than length of BigNumber set the rest to 0 // If we need more bytes than length of BigNumber set the rest to 0
if (length > GetNumBytes()) if (length > numBytes)
memset((void*)_array, 0, length); memset((void*)_array, 0, length);
BN_bn2bin(_bn, (unsigned char *)_array); BN_bn2bin(_bn, (unsigned char*)_array);
if (reverse) if (reverse)
std::reverse(_array, _array + length); std::reverse(_array, _array + numBytes);
return _array; return _array;
} }