I have a task where I need to proof that one binary file contains another binary file. "No problem", I thought, "that's what a diff-tool is there for". Unfortunately it didn't give me the result I expected. Instead of telling me that 100% of the original bytes exist in the larger file as one block, it showed thousands of single bytes that are identical and other thousands of bytes which are different.
Which tool would allow me to proof visually that a smaller binary file is 100% contained in a larger binary file? It should
- run on Windows 10
- be gratis
- have a built-in hex-viewer which shows the values of both files side by side so that people could compare the files themselves if they like. For optimal results, one of the columns probably requires shifting.
I have tried
- WinMerge as a diff tool
- 010 Editor worked with some custom comparison setting, especially the "Quick Match Length" needs to be increased. Unfortunately that tool is commercial.