카카오지도 hashkey 가져오기

private void getHashKey(){

    try {

        PackageInfo info = getPackageManager().getPackageInfo("com.kwon.womantranssystem", PackageManager.GET_SIGNATURES);

        for (Signature signature : info.signatures) {

            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());

            Log.d("TAG","key_hash: "+ Base64.encodeToString(md.digest(), Base64.DEFAULT));

        }

    } catch (PackageManager.NameNotFoundException e) {

        e.printStackTrace(); }

    catch (NoSuchAlgorithmException e) { e.printStackTrace(); }
}