HASH string key on published APK in SMS Retriever API

Question

A lot of these questions were asked. but none worked for me.

Question:

I was able to get the correct key using AppSignatureHelper.java in debug mode and all working as expected. And I've published my app on play store and used the same class on signed apk to retrieve HASH key but it's not working. I tried all other ways mentioned in a lot previous questions like this. and below code using keystore:

keytool -exportcert -alias PlayDeploymentCert -keystore MyProductionKeys.keystore | xxd -p | tr -d "[:space:]" | echo -n com.example.myapp `cat` | sha256sum | tr -d "[:space:]-" | xxd -r -p | base64 | cut -c1-11

None of them working in the published app. SMS simply not reading!! Any help would be appreciated.

You need to mention it while generating the hash string. Replace com.example.myapp with your app package name and also make sure you are using the right keystore file name — AgentP, Apr 15 '20 at 18:47
above is a sample. I tried with correct keystore data and package — Fajar Khan, Apr 15 '20 at 18:47
Are you sure that you downloaded App signing certificate named deployment_cert.der from google play store if your app signed by google play ? — AgentP, Apr 15 '20 at 18:49

score 1 · Answer 1 · answered Apr 15 '20 at 18:33

1

You should get the hash key from the keystore file not from AppSignatureHelper class ...

Google in its documentation mentioned it officially "If you use the helper class, be sure to remove it from your app after you get the hash string"

So generate the hash key from the keystore file ...

Check this on how to generate the Hash String : Computing your app hash string

Note : If you use app signing by Google Play, download your app signing certificate (deployment_cert.der) from the App signing section of the Google Play console.

Then, import the app signing certificate into a temporary key store

answered Apr 15 '20 at 18:33

AgentP

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HI, I've already tried this. but SMS not reading with this key. I've updated my question – Fajar Khan Apr 15 '20 at 18:39
the debug key is working fine. so I don't think is there any issue with code. I've followed official docs. – Fajar Khan Apr 15 '20 at 18:43

HASH string key on published APK in SMS Retriever API

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