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How to convert Java Key Store file to pem/key for nginx
1. Convert our ".jks" file to ".p12" (PKCS12 key store format):
keytool -importkeystore -srckeystore oldkeystore.jks -destkeystore newkeystore.p12 -deststoretype PKCS12
1.1. List new keystore file contents:
keytool -deststoretype PKCS12 -keystore newkeystore.p12 -list
2. Extract pem (certificate) from ".p12" keysotre file:
openssl pkcs12 -nokeys -in newkeystore.p12 -out certfile.pem
3. Extract unencrypted key file from ".p12" keysotre file:
openssl pkcs12 -nocerts -nodes -in newkeystore.p12 -out keyfile.key
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