Java Keytool Keystore Commands

Java Keytool Keystore Commands

Here's a list of some useful Java keytool keystore commands;


Java Keytool Commands for Creating and Importing

These commands allow you to generate a new Java Keytool keystore file, create a CSR, and import certificates. Any root or intermediate certificates will need to be imported before importing the primary certificate for your domain.

  • Generate a Java keystore and key pair
    • keytool -genkey -alias mydomain -keyalg RSA -keystore keystore.jks -keysize 2048
  • Generate a certificate signing request (CSR) for an existing Java keystore
    • keytool -certreq -alias mydomain -keystore keystore.jks -file mydomain.csr
  • Import a root or intermediate CA certificate to an existing Java keystore
    • keytool -import -trustcacerts -alias root -file Thawte.crt -keystore keystore.jks
  • Import a signed primary certificate to an existing Java keystore
    • keytool -import -trustcacerts -alias mydomain -file mydomain.crt -keystore keystore.jks
  • Generate a keystore and self-signed certificate
    • keytool -genkey -keyalg RSA -alias selfsigned -keystore keystore.jks -storepass password -validity 360 -keysize 2048

Java Keytool Commands for Checking

If you need to check the information within a certificate, or Java keystore, use these commands.

  • Check a stand-alone certificate
    • keytool -printcert -v -file mydomain.crt
  • Check which certificates are in a Java keystore
    • keytool -list -v -keystore keystore.jks
  • Check a particular keystore entry using an alias
    • keytool -list -v -keystore keystore.jks -alias mydomain

Other Java Keytool Commands

  • Delete a certificate from a Java Keytool keystore
    • keytool -delete -alias mydomain -keystore keystore.jks
  • Change a Java keystore password
    • keytool -storepasswd -new new_storepass -keystore keystore.jks
  • Export a certificate from a keystore
    • keytool -export -alias mydomain -file mydomain.crt -keystore keystore.jks
  • List Trusted CA Certs
    • keytool -list -v -keystore $JAVA_HOME/jre/lib/security/cacerts
  • Import New CA into Trusted Certs
    • keytool -import -trustcacerts -file /path/to/ca/ca.pem -alias CA_ALIAS -keystore $JAVA_HOME/jre/lib/security/cacerts

Thanks to https://www.sslshopper.com/article-most-common-java-keytool-keystore-commands.html ​



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