Java Keytool Commands

Generate a Keystore

#Creates a key in JKS format with an alias of "hello-world" RSA algorithm with 2048 size at output location /path/to/output/client.ks
keytool -genkey -alias hello-world -keyalg RSA -keysize 2048 -keystore /path/to/output/client.ks

View a keystore/trust store contents

#Standard output
keytool -list -keystore /path/to/keystore/or/truststore
 
#Gives a more verbose output
keytool -v -list -keystore /path/to/keystore/or/truststore

Export key certificate from keystore

#Exports the key noted by alias from the keystore "/path/to/keystore" to the file "/path/to/export/cert"
keytool -export -alias mywebsite -keystore /path/to/keystore -file /path/to/export/cert

Import key certificate to trust store

#Imports a certificate at "/path/to/certificate" and gives it the specified alias in the destination trustore makred by "/path/to/trust/store"
keytool -importcert -file /path/to/certificate -alias aliasname -keystore /path/to/trust/store -storepass changeit

Delete a key from a keystore

#Delete the key with an alias of "hello-world" from the keystore at "/path/to/keystore"
keytool -delete -alias hello-world -keystore /path/to/keystore