invalid AES key length error

Question

this code give invalid AES key length error. how can i correct it ? ( i want 128 bit key AES encryption )

package org.temp2.cod1;
import java.security.*;

im         


        

Answer 1

You can get this error when the key you're trying to use isn't the right length.

So in psuedocode, you're trying something like this:

String key = "123";
SecretKeySpec k =  new SecretKeySpec(key, "AES");

but the key is too short - it needs to be something like, say 31 characters long.

So check your key value -> it's probably stored somewhere incorrectly.