Java Keytool error after importing certificate , "keytool error: java.io.FileNotFoundException & Access Denied"

java, keytool, ssl, ssl-certificate

Solution

I was having the same problem while importing the certificate in local keystore. Whenever i issue the keytool command i got the following error.

Certificate was added to keystore keytool error: java.io.FileNotFoundException: C:\Program Files\Java\jdk1.8.0_151\jre\lib\security (Access is denied)

Following solution work for me.

1) make sure you are running command prompt in Rus as Administrator mode

2) Change your current directory to %JAVA_HOME%\jre\lib\security

3) then Issue the below command

keytool -import -alias "mycertificatedemo" -file "C:\Users\name\Downloads\abc.crt" -keystore cacerts

3) give the password changeit

4) enter y

5) you will see the following message on successful "Certificate was added to keystore"

Make sure you are giving the "cacerts" only in -keystore param value , as i was giving the full path like "C**:\Program Files\Java\jdk1.8.0_151\jre\lib\security**".

Hope this will work

Problem

I'm trying to connect a Java Web API via HTTPS; however, an exception is thrown: ``` javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException ``` I followed these steps which I learned from online keytool & SSL cert tutorials: I copied the HTTPS URL into the browser, downloaded the SSL certificates & Installed them in the browser using Internet Explorer. Exported the certificates to a path on my computer, the certificates were saved as `.cer` Used the keytool's import option. The command below executed without any errors. ``` keytool -import -alias downloadedCertAlias -keystore C:\path\to\my\keystore\cacerts.file -file C:\path\of\exportedCert.cer ``` I was prompted for a password at the command prompt, which I entered then I was authenticated. The `cmd` window printed some certificate data & signatures and I was prompted with the question: Trust this certificate? I answered yes. The cmd prompt displayed Certificate was added to keystore However after that message, another exception was displayed: ``` keytool error: java.io.FileNotFoundException: C:\Program files\...\cacerts <Access Denied> ``` Finally when I checked the keystore , the SSL certificate was not added and my application gives the same exception I was getting earlier when trying to connect: ``` (javax.net.ssl.SSLHandshakeException:sun.security.validator.ValidatorException) ```

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