Kindlet How to create a BIN update file from a developer keystore?

[mrfakename]

Hello,
I've recently been trying to build a Kindlet. I have my azw2 file and my developer.keystore file, but I was wondering how I can merge it with the existing developer.keystore on my device through an update.
I've tried USB Networking and Lauchpad, both of which unfortunately do not work for me.
I have a Kindle 3G.
Thank you in advance!

[evilReader]

It's recommended to just use the

dktest

,

ditest

,

dntest

keys in the merged developer keystore, which is already installed with the MKK step of the jailbreak

[evilReader]

Ok my last message didn't post for some reason but anyways; you should really just use the merged developer keystore (https://www.mobileread.com/forums/sh...d.php?t=152294) and use the "test" keys in it because it gets installed with the jailbreak for everyone.

[mrfakename]

Hi,
Thank you for your quick response! I am already using the merged keystore, and I did install the Dev Certificates with MKK, however it still does not work.

[mrfakename]

Hi,
I figured it out (here's my code to build the update).
Thanks!
Edit: My fixes didn't seem to work

[NiLuJe]

You should *absolutely* not need to use a custom keypair, and doing so will only spell trouble for you (maintenance and support-wise) down the line .

Check how KUAL itself is built for reference (or @ixtab's Collection Manager).

[NiLuJe]

Specifically, on the Java side, for ant: https://bitbucket.org/ixtab/kindlela...ild.properties

And on the Kindle side, for KindleTools: https://bitbucket.org/ixtab/kindlela...ild-updates.sh

[mrfakename]

Hello!
(I haven't been working on my Kindlet for a while because my device broke, but I'm trying again now!)
I'm unable to install my Kindlet because I keep getting an error message about the Kindlet not being signed by a registered developer. I've tried using several different keystores, but none of them work.

- I tried the merged developer keystore, but got the same error message
- I tried KindleNote's keystore (I have KindleNote installed, so the same keystore should work, right?) - https://github.com/proDOOMman/Kindle...aster/keystore - but still got the same error
- I tried KUAL's keystore (https://bitbucket.org/ixtab/kindlela...loper.keystore) but got the same error.

Any assistance would be greatly appreciated.

[NiLuJe]

There may be weird Java caching involved... somewhere, so, make sure you delete the Kindlet *from the UI* before replacing it, and I would add a reboot in the mix just to be safe.

If you've got KUAL running and you sign stuff as we do like I linked above, there's no reason for it not to work.

[mrfakename]

Hi @NiLuJe,
Thank you so much for your assistance!
I've tried deleting the app from the UI, restarting the Kindle, and copying the azw2 back onto the device, but I'm still getting the same message ("The title is not signed by a registered developer.") KUAL and KindleNote continue to launch properly.

[NiLuJe]

Then you might be signing it wrong?

(I don't do java, but I imagine there's a way to check how a jar is signed?)

[mrfakename]

Thank you for your suggestion @NiLuJe!
I'm a complete beginner at Java, but I did a basic internet search and found the "jarsigner" command. Here's my output:

% jarsigner -verify kindlet.azw2

jar verified.

Warning:
This jar contains entries whose certificate chain is invalid. Reason: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
This jar contains entries whose signer certificate is self-signed.
The DSA signing key has a keysize of 1024 which is considered a security risk. This key size will be disabled in a future update.
This jar contains signatures that do not include a timestamp. Without a timestamp, users may not be able to validate this jar after any of the signer certificates expire (as early as 2025-09-12).

Re-run with the -verbose and -certs options for more details.

Is this normal or did I do something wrong?
Here is my script to build + sign the jar:

KEYSTORE=developer.keystore
JAR=kindlet.azw2
MANIFEST=main.manifest
ant jar
cp HelloWorld.jar $JAR
jarsigner -keystore $KEYSTORE -storepass password $JAR dktest
jarsigner -keystore $KEYSTORE -storepass password $JAR ditest
jarsigner -keystore $KEYSTORE -storepass password $JAR dntest

Thank you in advance!

[encol]

This is the script I used some time ago when I wrote some kindlets. Try it out.