How to import x509.pem pk8 file into jks keystore

import-x509-pk8-to-jks-keystore.md

How to import x509.pem pk8 file into jks keystore

Prerequiste:

• OpenSSL and keytool installed and added to your PATH

Generate a file platform.priv.pem from you pk8 file.

openssl pkcs8 -in platform.pk8 -inform DER -outform PEM -out platform.priv.pem -nocrypt

Generate platform.pk12 file using both your platform.x509.pem file and the previously generated platform.priv.pem. The key alias KEY_ALIAS is a string value and it can be anything. After entering command below, you'll be prompted for a password (and a password confirmation). It will be your a key password KEY_PASSWORD.

openssl pkcs12 -export -in platform.x509.pem -inkey platform.priv.pem -out platform.pk12 -name {{KEY_ALIAS}}

Create a brand new jks file STORE_FILE_NAME, and import your key with the given key alias and password before. Once the command below is entered, you'll be prompted for the store password STORE_PASSWORD.

keytool -importkeystore -destkeystore {{STORE_FILE_NAME}}.jks -srckeystore platform.pk12 -srcstoretype PKCS12 -srcstorepass {{KEY_PASSWORD}} -alias {{KEY_ALIAS}}

You already defined:

1. key alias
2. key password
3. store password
4. store file name

Finally update your signing config on app's build.gradle.

android {
    signingConfigs {
        release {
            storeFile file('/replace/with/path/to/your/{{STORE_FILE_NAME}}.jks')
            storePassword '{{STORE_PASSWORD}}'
            keyAlias = '{{KEY_ALIAS}}'
            keyPassword '{{KEY_PASSWORD}}'
        }
    }