is AES key random?

Question

AES key may be generate by this code

KeyGenerator kgen = KeyGenerator.getInstance(\"AES\");
kgen.init(128); 

but

If I have a \"very re

Answer 1

You can add a random algorithm using SecureRandom :

    KeyGenerator keyGen = KeyGenerator.getInstance("AES");
    SecureRandom random = new SecureRandom(); // cryptograph. secure random 
    keyGen.init(random); 
    SecretKey secretKey = keyGen.generateKey();