I'll teach you to sign apk two times.

Hello Everyone, just started to write a blog, write a bad place please forgive me. It's a record of your work.

due to the recent use of the project, Bang Bang security reinforcement, after the completion of the need for the APK two times signature.

Bang Bang security provided by the signature software do not know is not the cause of the environment, in my place, can only use the command to sign!

First, sign the certificate (note: You can use KeyStore to generate one, you can use the direct copy out of studio) and the APK file to be signed together with the Java JDK in the bin directory,-– My directory is D:\Java\bin, I just copied it directly from studio, and I used it.

Note: Quickly open a command window: Hold down Shift-click in the Bin directory to open the Command line window

run: jarsigner-verify echat_ydbg_3.0.5_1226_sec.apk See if APK has a signature (note: echat_ydbg_3.0.5_1226_sec.apk the name of the file you want to reinforce) will see The jar is not signed. (missing signature or unable to resolve signature), indicating missing signature.

Start signing below

1. Java jdk1.7 above run: (Note: The test is feasible.) )
: Jarsigner-digestalg sha1-sigalg md5withrsa-keystore echat.jks-storepass 123456-signedjar Echat_ydbg_3.0.5_1226_sig ned.apk echat_ydbg_3.0.5_1226_sec.apk codesign

Parameter description: Jarsigner-digestalg sha1-sigalg md5withrsa-keystore ( Note: Your signature certificate name )-storepass ( Note: Your signature certificate password )- Signedjar (Note: apk name after signature ) (Note: unsigned apk name ) ( Note: alias of signing certificate )

2. Java jdk1.6 and the following runs: (note: not personally tested.) )
: Jarsigner-verbose-keystore Echat.jks-signedjar echat_ydbg_3.0.5_1226_signed.apk echat_ydbg_3.0.5_1226_sec.apk Codesign

Next, you will be prompted to enter the password, enter your signature certificate of the password.

Parameter description: Jarsigner-verbose-keystore (Note: your signature certificate name )-signedjar (note: apk name after signing ) ( Note: unsigned apk name ) ( Note: The alias of the signing certificate )

It's OK to be here, isn't it a simple feeling? You can try it if it is useful.