JavaCard OS

As I know, there are 3 options to set the length of the AES key, 128, 192 and 256 bits. But I only see one option on the Cipher class related with the 128 length AES key for CBC and ECB.

My question is if it's possible to cipher the AES keys with 192 and 256 bits?

The cipher object does not have a key size attribute. Only the key object has the key size. You can use an AES cipher with all the three key sizes.