Java JCE cannot authenticate provider BC in jarsplice created jar

StackOverflow https://stackoverflow.com/questions/22160780

  •  19-10-2022
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Question

I am working on a game and I am using the Slick2D library. I am also using bouncycastle for encryption. Then I use jarsplice to package everything together in a nice executable. And it runs fine until it needs to encrypt something. It gives me a java.lang.SecurityException: JCE cannot authenticate the provider BC And I am using a signed jarfile (http://www.bouncycastle.org/download/bcprov-jdk15on-150.jar)

Here is the stack trace

 java.lang.SecurityException: JCE cannot authenticate the provider BC
    at javax.crypto.Cipher.getInstance(Cipher.java:642)
    at javax.crypto.Cipher.getInstance(Cipher.java:580)
    at net.matrixstudios.zenerith.networking.ZenerithLogin.encryptLogin(ZenerithLogin.java:159)
    at net.matrixstudios.zenerith.networking.ZenerithLogin.<init>(ZenerithLogin.java:112)
    at net.matrixstudios.zenerith.MultiplayerMenu$1.performAction(MultiplayerMenu.java:90)
    at net.matrixstudios.zenerith.gui.menu.MenuGameState.clickButton(MenuGameState.java:83)
    at net.matrixstudios.zenerith.gui.menu.MenuGameState.checkForButtonClicks(MenuGameState.java:75)
    at net.matrixstudios.zenerith.gui.menu.MenuGameState.update(MenuGameState.java:51)
    at net.matrixstudios.zenerith.gui.menu.AbstractGameState.update(AbstractGameState.java:47)
    at org.newdawn.slick.state.StateBasedGame.update(StateBasedGame.java:266)
    at org.newdawn.slick.GameContainer.updateAndRender(GameContainer.java:663)
    at org.newdawn.slick.AppGameContainer.gameLoop(AppGameContainer.java:411)
    at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:321)
    at net.matrixstudios.zenerith.gui.Window.<init>(Window.java:28)
    at net.matrixstudios.Main.main(Main.java:28)
Caused by: java.util.jar.JarException: file:/C:/Users/M4trixSh4d0w/Desktop/Zenerith_Alpha.0.2.1.5.jar has unsigned entries - org/bouncycastle/LICENSE.class
    at javax.crypto.JarVerifier.verifySingleJar(JarVerifier.java:462)
    at javax.crypto.JarVerifier.verifyJars(JarVerifier.java:322)
    at javax.crypto.JarVerifier.verify(JarVerifier.java:250)
    at javax.crypto.JceSecurity.verifyProviderJar(JceSecurity.java:161)
    at javax.crypto.JceSecurity.getVerificationResult(JceSecurity.java:187)
    at javax.crypto.Cipher.getInstance(Cipher.java:638)
    ... 14 more

So how do I authenticate the jarfile to run? This is a standalone executable jarfile.

Was it helpful?

Solution 2

You probably want to register the cryptographic service provider at runtime to ensure the configuration will work for everyone. You can use either of the Security.addProvider() or Security.insertProviderAt() methods. See documentation linked below under "Managing Providers".

Just use addProvider() unless the order of providers is somehow important for you. I saw one contributor commented that you might slot it in at entry #9, but I didn't see evidence that this is right for your configuration, so probably just an extraneous detail from his/her config file. Obviously, if I missed something about your configuration and you do need it there, then go for insertProviderAt().

OTHER TIPS

I'm a Android developer, got this error when I upgraded the compile and build tool to Android 12 (31), I tried lots of ways to fix it and finally I found the only way that works is changing the JDK to the version of 11.0.14.1 (x86_64), I worked on Mac M1, the downloading link of this version is: https://docs.aws.amazon.com/corretto/latest/corretto-11-ug/downloads-list.html

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