Platform Key를 이용해서 App Signing

System App을 개발하기 위해서는, 권한이 필요하다.
AndroidManifest.xml에 다음과 같이 sharedUserId를 설정해주면 된다.

android:sharedUserId="android.uid.system"

이렇게 설정된 시스템앱은 해당 플래폼의 key로 Signing되어야 하는데,
이러한 과정을 적어보려고 한다.

1. Framework에서 키 생성하기.

안드로이드 프레임웍의 /build/target/product/security 디렉토리를 보면 다음과 같은 파일이 확인된다.

2. 명령어

$ openssl pkcs8 -inform DER -nocrypt  -in testkey.pk8 -out testkey.pem

$ openssl pkcs12 -export -in testkey.x509.pem -inkey testkey.pem -out testkey.p12 -password pass:android -name androiddebugkey

$ keytool -importkeystore -deststorepass android -destkeystore testkey.jks -srckeystore testkey.p12 -srcstoretype PKCS12 -srcstorepass android

3. SignKey for Emulator

http://www.xinotes.net/notes/note/1267/

Private key:
-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----

2.Certificate:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
> Privatekey를 platform.pem, Certificate 를 platform.x509.pem 파일로 만든다.
    두개의 파일을 이용해서 jks를 만들었더니 에뮬레이터에서도 잘 동작함.


4. VirtualBox AndroidX86 에서 사용하기

>> AndroidX86 Platform키는 왜 안되는 걸까..
>> http://sourceforge.net/p/android-x86/build/ci/marshmallow-x86/tree/


5. apk 의 KeySign 바꾸기
http://itmir.tistory.com/39