jarsigner

I need to change expiry date of jar being signed by a certificate to say 30 days. Hence I execute in sequence (I provide relevant inputs for the first command). But in-spite of the -validity option being given as 30 days, the jarsigner command says the certificate expires after 6 months(which is default). How can I change this any idea ? Below is the list of commands i use keytool -genkey -keystore test -alias testAlias -validity 30 <br> keytool -selfcert -alias testAlias -keystore test <br> jarsigner -keystore "C:\test" "C:\some.jar" testAlias Your key has a validity of 30 days; the

I've embedded jre files to my applications setup, i can use java.exe to perform some java specific tasks. And i want to use jarsigner.exe but when i launch jarsigner, it checks some registry keys, and could not found (because jre is not insatalled by jre setup) them and gives error. How can i specify java.exe path to jarsigner so that it should use java.exe that i point instead of checking registry. error log: Error opening registry key 'Software\JavaSoft\Java Runtime Environment Error: could not find java.dll Error: could not find Java SE Runtime Environment I wonder are there any extra

I have an archive I want to sign and I want to validate it in C with OpenSSL. To sign the archive the jarsigner seemed like a good idea, considering I wouldn't have to create something on my own, and it seems to work great. With OpenSSL I can validate the different digest values, but I can't get it to validate the *.SF *.RSA signature. The steps I have taken: Create a keystore $ keytool -genkeypair -alias <alias> -keystore <keystore> -validity 360 -keyalg RSA -keysize 2048 -sigalg SHA256withRSA Sign the archive $ jarsigner -keystore <keystore> -signedjar <signedFile>.zip <fileToSign>.zip