HashResult Sha256HMACCommonCryptoImpl::Calculate(const ByteBuffer& toSign, const ByteBuffer& secret)
{
unsigned int length = CC_SHA256_DIGEST_LENGTH;
ByteBuffer digest(length);
std::memset(digest.GetUnderlyingData(), 0, length);
CCHmac(kCCHmacAlgSHA256, secret.GetUnderlyingData(), secret.GetLength(), toSign.GetUnderlyingData(), toSign.GetLength(), digest.GetUnderlyingData());
return HashResult(std::move(digest));
}
TEST(UUIDTest, TestUUIDToStringConversion)
{
ByteBuffer rawUuuid = HashingUtils::HexDecode("f81d4fae7dec11d0a76500a0c91e6bf6");
const char* expectedStr = "F81D4FAE-7DEC-11D0-A765-00A0C91E6BF6";
UUID uuid(rawUuuid.GetUnderlyingData());
Aws::String convertedStr = uuid;
ASSERT_STREQ(expectedStr, convertedStr.c_str());
}
HashResult BCryptHashImpl::Calculate(const ByteBuffer& toHash, const ByteBuffer& secret)
{
if (!IsValid())
{
return HashResult();
}
std::lock_guard<std::mutex> locker(m_algorithmMutex);
BCryptHashContext context(m_algorithmHandle, m_hashObject, m_hashObjectLength, secret);
if (!context.IsValid())
{
AWS_LOG_ERROR(logTag, "Error creating hash handle.");
return HashResult();
}
return HashData(context, static_cast<PBYTE>(toHash.GetUnderlyingData()), static_cast<ULONG>(toHash.GetLength()));
}
BCryptHashContext(void* algorithmHandle, PBYTE hashObject, DWORD hashObjectLength, const ByteBuffer& secret) :
m_hashHandle(nullptr),
m_isValid(false)
{
NTSTATUS status = BCryptCreateHash(algorithmHandle, &m_hashHandle, hashObject, hashObjectLength, secret.GetUnderlyingData(), (ULONG)secret.GetLength(), 0);
m_isValid = NT_SUCCESS(status);
}