InvalidKeyException Illegal Key Size when i export runnable jar file

Question

I have got an error:

InvalidKeyException Illegal Key Size 

Then I download 2 files(local_policy, US_export_policy) and put it in

C:\\Program Files\\Java\\jre1.8.0_65\\lib\\security

everithing worked fine. But when i export project to

Runnable jar file

and then open this jar i have error in my app :

InvalidKeyException Illegal Key Size 

Why it happen? I dont know how to fix this?

Answer 1

You can solve it by two ways:

First way:

You have already put 2 files(local_policy, US_export_policy) in

C:\Program Files\Java\jre1.8.0_65\lib\security

You also need to put it in

C:\Program Files\Java\lib\security

Second way:

You need to install the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files which is available at Oracle .

If you don't then the keysize is limited due to US export laws.

Resource Link:

InvalidKeyException Illegal key size