Improperly Signed Update.

Please post the commands you used to generate the signature and a link to your appcast.

App Cast Link : http://macrystal.com/spark-updates.xml
Commands To Generate Signature (After Navigating To Sparkle Distribution Directory):
ruby "Extras/Signing Tools/generate_keys.rb"

That's the script to generate the keys. So how did you generate the signature?

What's the difference between the signature and the key?

I just generated a signature and used the signature with the Update, and it still says it's improperely signed.

> What's the difference between the signature and the key?

The difference is huge. The keys are generated once, and form a kind of password (there's a private key and a public key). The signature is generated from the private key and the update (.zip file), and can be checked using the public key. Again, please read the documentation, and check Google first.

> I just generated a signature and used the signature with the Update, and it still says it's improperely signed.

Are you sure you generated the signature correctly? E.g. did you use the correct keys (you should use the private key that was generated together with the public key embedded in your bundle)? Perhaps you can describe exactly what you did.

Apart from that you're not using a well formed version. The CFBundleVersion/sparkle:version should consist of digits and periods only (this is a system requirement). Moreover, your version numbers are not unique. So actually which version it will get is pretty much random. And at least 3 updates don't have a correct signature.

I just generated a signature that's made up of Letters and Numbers is this OK?

I've got rid of the old updates and yet it still doesn't work. This is the code I used:
ruby "Extras/Signing Tools/sign_update.rb" \
~/Desktop/Spark.zip ~/Desktop/dsa_priv.pem

So did you use the correct private and public key? So are the files dsa_priv.pem you used to generate the signature and dsa_pub.pem you included in the bundle generated at the same time?

What do you mean at the same time?

> What do you mean at the same time?

Generated as a single pair by the same run of the generate_keys.rb command.

Yes i did generate them at the same time.

Can you tell me why I am getting this problem?

No, I can't tell you. I really think you're doing something wrong, but I can't say what, I don't have enough information and no clue left. I know the scripts work.

Ok, It works now, i don't know why, it just suddenly happened, I tried the code again then pasted it into the update and it worked.

Thanks Hofman, that solved my question.