Anyone who can write code can write a crypto library. The trick is to have a second person helping you, who has all your mathematics notes, a copy of your sour

Anyone who can write code can write a crypto library. The trick is to have a second person helping you, who has all your mathematics notes, a copy of your source code, physical access to your hardware, and the ability to run your program inside a debugger. You don't even get to know whether they put cream in their coffee. If you can keep a secret from them, you're doing okay. So then you rent a smarter person to do the same thing to make sure all the tricks and shortcuts have been attempted. If someone manages to break it in the wild after that, you're still doing about as well as some of the highest-paid professionals in the industry. Defense is difficult.