xorstr | heavily vectorized c++17 compile time string encryption | Encryption library
kandi X-RAY | xorstr Summary
kandi X-RAY | xorstr Summary
A heavily vectorized c++17 compile time string encryption.
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QUESTION
I'm trying to encrypt a message by the following code above.
- Compare 2 string length and refill the short one with cycle back.
- Convert that 2 string into a binary string.
- XOR that 2 binary string to get another binary string.
- convert the last binary string to hexadecimal.
Issue is on the last step. The output should be 111c0d131e1c180e1b10425655
instead of 111cd131e1c18e1b10425655
.
Why my output missing two letters 0?
Can anyone help me to fix, please?
ANSWER
Answered 2020-Sep-28 at 08:03The problem is that the number you are trying to convert from binary to hex is too small to require 2 characters, so it outputs just one.
QUESTION
D3DXCreateTextureFromFile does not work for me, i get the D3DXERR_INVALIDDATA error when i use XorString and the D3DERR_INVALIDCALL when i don't.
...ANSWER
Answered 2020-Jun-03 at 09:27The D3DX9 library is very old, and it used the filename extension to determine which codec to use for loading the image. Since you told it jpg
it will only try to load it using jpeglib.
The D3DX10 and D3DX11 libraries use Windows Imaging Component (WIC) which relies on a file inspection technique, so it wouldn't care what the physical file-name is. You can find a modern DDSTextureLoader, WICTextureLoader, and ScreenGrab for legacy DX9 here which does not require D3DX9 at all.
D3DX9 includes codecs for BMP, JPG, PNG, TGA, HDR, and PPM/PFM. D3DX10/D3DX11 via WIC supports BMP, GIF, JPG, PNG, TIFF, and HDPhoto (JPEG-XR). They both included support for DDS as well.
DirectXTex includes a codec for TGA and HDR because they are common source texture formats, but are not supported by any built-in WIC codec. The DirectXTex implementation of HDR recognizes both
?RADIANCE
and?RGBE
headers, but D3DX9 only supported?RADIANCE
.Note that D3DX9, D3DX10, and D3DX11 are all deprecated (see Microsoft Docs) along with the DirectX SDK itself.
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