Can AES be considered as Perfectly Secure? I am studying about the AES encryption standard, and as I know from the theory there is no known weaknesses today about this block-cipher.

I would like to find out or at least to understand what "classification" of secureness is AES.

As I know there are several classifications:


Perfectly secure. Which is not able to break and an example is the One-Time-Pad.
Provably secure that is we can proof that the complexity of the algorithm is closed to a known theoretical assumption like the NP-hard.
Practically secure when an encryption algorithm is tested for long time and there is no sucesful attack so far.


With this in mind I will say that the AES is provably secure because as I know (correct me if I am wrong) the AES is able to crack but to test all the possible keys will take trillion (?) years to achieve that so that my answer.

So I am wrong?
AES is not provably secure, for the simple reason that there is no security proof for it. We suspect that AES is secure in practice, but there is no proof of that.