internal static byte[] OpenSslEncode <THandle>(
GetEncodedSizeFunc <THandle> getSize,
EncodeFunc <THandle> encode,
THandle handle)
where THandle : SafeHandle
{
int size = getSize(handle);
if (size < 1)
{
throw CreateOpenSslCryptographicException();
}
byte[] data = new byte[size];
int size2 = encode(handle, data);
if (size2 < 1)
{
Debug.Fail(
$"{nameof(OpenSslEncode)}: {nameof(getSize)} succeeded ({size}) and {nameof(encode)} failed ({size2})");
// If it ever happens, ensure the error queue gets cleared.
// And since it didn't write the data, reporting an exception is good too.
throw CreateOpenSslCryptographicException();
}
Debug.Assert(size == size2);
return(data);
}
internal static ArraySegment <byte> OpenSslRentEncode <THandle>(
GetEncodedSizeFunc <THandle> getSize,
EncodeFunc <THandle> encode,
THandle handle)
where THandle : SafeHandle
{
int size = getSize(handle);
if (size < 1)
{
throw CreateOpenSslCryptographicException();
}
byte[] data = ArrayPool <byte> .Shared.Rent(size);
int size2 = encode(handle, data);
if (size2 < 1)
{
Debug.Fail(
$"{nameof(OpenSslEncode)}: {nameof(getSize)} succeeded ({size}) and {nameof(encode)} failed ({size2})");
// Since we don't know what was written, assume it was secret and clear the value.
// (It doesn't matter much, since we're behind Debug.Fail)
ArrayPool <byte> .Shared.Return(data, clearArray : true);
// If it ever happens, ensure the error queue gets cleared.
// And since it didn't write the data, reporting an exception is good too.
throw CreateOpenSslCryptographicException();
}
Debug.Assert(size == size2);
return(new ArraySegment <byte>(data, 0, size2));
}
internal static byte[] OpenSslEncode <THandle>(GetEncodedSizeFunc <THandle> getSize, EncodeFunc <THandle> encode, THandle handle)
where THandle : SafeHandle
{
int size = getSize(handle);
if (size < 1)
{
throw Crypto.CreateOpenSslCryptographicException();
}
byte[] data = new byte[size];
int size2 = encode(handle, data);
Debug.Assert(size == size2);
return(data);
}
