> And just because a cipher is public does not mean that there does not exist a side channel in the implementation of the ciphers or a mistake in your usage of

> And just because a cipher is public does not mean that there does not exist a side channel in the implementation of the ciphers or a mistake in your usage of them. And just because they have the source code, doesn't mean they couldn't get it from reverse engineering the binary. I have not seen a binary that was completely resistant to reverse engineering yet. Likely he was just saving them time.