Client Login - how to store credentials securely on client side?

Question

As many APIs provides access remotely to their data through the user/password combination.

I was wondering which was the best way to store those value, highly secure way

Answer 1

The best way would be to rely on someone else to store them and to trust that party instead. But if you must have control I'd suggest reading a good book on secure systems and then thinking again. There are many many variables to consider and most of the time you just mitigate the risk vs cost.