There
can be a situation where you want to extract private key from your keystore but it is not a straight forward as we think as It involves two steps i.e.
·
Extracting
private key from keystore in PKCS#12 format
·
Converting
it to .PEM file
Step1:
Extracting in PKCS format
keytool -v -importkeystore
-srckeystore KEYSTORE_NAME -srcalias CERTIFICATE_ALIAS -destkeystore
FILE_NAME.p12 -deststoretype PKCS12
Eg: keytool -v -importkeystore -srckeystore keystore.jks -srcalias application -destkeystore privatekey.p12
-deststoretype PKCS12
Note: If you don’t know the alias name of
your certificate then you can display it:
keytool -list -v -keystore
keystore.jks
Step2:
Converting it into .PEM FILE
openssl pkcs12 -in
privatekey.p12 -out private.pem
