Import Java Trusted Certificate to JRE

windows java import certificate

39,004

A couple of examples on how to do this using "keytool"

The second link here has an example batch file:

@echo off
echo
echo This will import an X.509 SSL certificate into the keystore for the JVM
specified
echo
echo Press Control+C to abort.
pause
SETLOCAL

rem -------------------------------------------------
rem 1) Set the path to you JVM here
rem -------------------------------------------------
set JAVA_HOME=C:\j2sdk1.4.2_05

rem -------------------------------------------------
rem 2) SET THE CERTIFICATE NAME AND ALIAS HERE
rem -------------------------------------------------
set CERT_NAME=mycert.cer
set CERT_ALIAS=mycert

rem -------------------------------------------------
rem 3) SET THE KEYTOOL PASSWORD HERE
rem -------------------------------------------------
set KEYTOOL_PASS=changeit

rem -------------------------------------------------
rem DO NOT EDIT BELOW THIS LINE
rem -------------------------------------------------
set JAVA_SECURITY=%JAVA_HOME%\jre\lib\security
set CERT=%JAVA_SECURITY%\%CERT_NAME%
%JAVA_HOME%\jre\bin\keytool -import -trustcacerts -keystore %JAVA_SECURITY%\cacerts
-storepass %KEYTOOL_PASS% -noprompt -alias %CERT_ALIAS% -file %CERT%
ENDLOCAL
pause

Which part are you having trouble understanding? Is there a particular section that doesn't make sense? Do you need help with the batch file? Where, specifically, are you getting stuck? Perhaps I can help more specifically.

39,004

Zalastax

Updated on September 18, 2022

Comments

Zalastax over 1 year

I need to install a certificate from a Java app to a lot of people. I want to use a one click program or batch file to import it as a Trusted Certificate(in Control Panel->Security->Certificate). Then they won't need to press always allow first time they use the application.

I have extracted the needed certificate as both a .csr and as a .cer (the .csr via Control Panel and the .cer via keytool). Now I need to get one of them back without any clicking in menus.

I don't really understand the documentation of importing .cer with keytool and would like an example. Or are there an easier way than using keytool?
Zalastax almost 13 years

Thanks for the Googling :( As I said I had problems understanding how to get it in.
jefflunt almost 13 years

I've updated my answer.
Zalastax almost 13 years

On the second page I think the main problem was the readability of the page. I will see if I can get it all trought
Zalastax almost 13 years

The problem I have now is that I don't know the password. What should enter? I didn't do anything with the certificate after I got it out from keytool.
Zalastax almost 13 years

I found the password out by looking in the batch file. But nothing seems to happen. After entering the right password I don't get any errors but cmd don't seem to do anything either. The certificate don't seem to be there either.
Zalastax almost 13 years

It seems like that batch isn't what I was looking for. It was for some sort of developing and didn't seem to work for my JRE.