I have a jks keystore with no password. When I run the command
keytool -list -keystore mykeystore.jks
And it prompts me for the keystore password, I simply hit 'enter'.
Please note that the keystore password IS NOT the default java password of 'changeit'. It is blank
When I try to run
keytool -storepasswd -keystore mykeystore.jks
to change the password to a non blank string. It firsts prompts me for the current password. Simply hitting enter since it is blank says
keytool -storepasswd -keystore mykeystore.jks Enter keystore password: Keystore password is too short - must be at least 6 characters
Just to confirm with everyone that the password is not 'changeit'
keytool -storepasswd -keystore mykeystore.jks Enter keystore password: changeit keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect
Any idea how I can change the keystore password if the existing password is blank?
You can change the default keystore password as follows: Change the keystore password in the keystore using the following command: $ keytool -storepasswd -keystore /path/to/security/keystore. jceks -storetype JCEKS -storepass 'changeit' -new 'newPassword'
In the Enter keystore password prompt, type the current password, which by default is changeit, and press Enter. The new password is saved to cacerts.
You cannot create a keystore with a blank password with keytool since a while, but you can still do it programmatically.
If you're trying to do stuff with the Java default system keystore (cacerts
), then the default password is changeit
.
You can list keys without needing the password (even if it prompts you) so don't take that as an indication that it is blank.
(Incidentally who in the history of Java ever has changed the default keystore password? They should have left it blank.)
Add -storepass to keytool arguments.
keytool -storepasswd -storepass '' -keystore mykeystore.jks
But also notice that -list command does not always require a password. I could execute follow command in both cases: without password or with valid password
$JAVA_HOME/bin/keytool -list -keystore $JAVA_HOME/jre/lib/security/cacerts
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