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Created January 4, 2017 10:39
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Android - Print Key Hash
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.Signature;
import android.util.Base64;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
//...
private void printKeyHash() {
try {
String packageName = getApplicationContext().getPackageName();
PackageInfo info = getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (PackageManager.NameNotFoundException | NoSuchAlgorithmException e) {
Log.e("KeyHash:", e.toString());
}
}
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