mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-11-23 17:22:16 -05:00
first steps toward yubikey activity
- move BaseActivity into new package - extract BaseNfcActivity from NfcOperationsActivity
This commit is contained in:
parent
9ef2795fcd
commit
147003123f
@ -31,7 +31,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.LogTyp
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import org.sufficientlysecure.keychain.operations.results.SingletonResult;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.remote.AccountSettings;
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import org.sufficientlysecure.keychain.ui.BaseActivity;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Log;
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public class AccountSettingsActivity extends BaseActivity {
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@ -40,9 +40,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.remote.AppSettings;
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import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
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import org.sufficientlysecure.keychain.ui.BaseActivity;
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import org.sufficientlysecure.keychain.ui.dialog.AddSubkeyDialogFragment;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.dialog.AdvancedAppSettingsDialogFragment;
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import org.sufficientlysecure.keychain.util.Log;
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@ -38,7 +38,7 @@ import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.remote.AccountSettings;
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import org.sufficientlysecure.keychain.remote.AppSettings;
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import org.sufficientlysecure.keychain.ui.BaseActivity;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.SelectPublicKeyFragment;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.util.Log;
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@ -29,7 +29,7 @@ import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.pgp.KeyRing;
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import org.sufficientlysecure.keychain.ui.BaseActivity;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.CreateKeyActivity;
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import org.sufficientlysecure.keychain.util.Log;
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@ -23,6 +23,7 @@ import android.view.View;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Log;
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public class CertifyFingerprintActivity extends BaseActivity {
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@ -19,6 +19,8 @@
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package org.sufficientlysecure.keychain.ui;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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/**
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* Signs the specified public key with the specified secret master key
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@ -17,12 +17,18 @@
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package org.sufficientlysecure.keychain.ui;
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import android.app.PendingIntent;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.nfc.NfcAdapter;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentTransaction;
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import android.view.View;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Passphrase;
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import java.util.ArrayList;
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@ -78,7 +78,7 @@ public class CreateKeyStartFragment extends Fragment {
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mCreateKey = view.findViewById(R.id.create_key_create_key_button);
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mImportKey = view.findViewById(R.id.create_key_import_button);
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// mYubiKey = view.findViewById(R.id.create_key_yubikey_button);
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mYubiKey = view.findViewById(R.id.create_key_yubikey_button);
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mCancel = (TextView) view.findViewById(R.id.create_key_cancel);
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if (mCreateKeyActivity.mFirstTime) {
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@ -95,6 +95,14 @@ public class CreateKeyStartFragment extends Fragment {
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}
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});
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mYubiKey.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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CreateKeyYubiFragment frag = new CreateKeyYubiFragment();
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mCreateKeyActivity.loadFragment(frag, FragAction.TO_RIGHT);
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}
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});
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mImportKey.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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@ -0,0 +1,90 @@
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/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.app.Activity;
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import android.content.Context;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.EditText;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.CreateKeyActivity.FragAction;
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import org.sufficientlysecure.keychain.ui.widget.NameEditText;
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public class CreateKeyYubiFragment extends Fragment {
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CreateKeyActivity mCreateKeyActivity;
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NameEditText mNameEdit;
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View mBackButton;
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View mNextButton;
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private static boolean isEditTextNotEmpty(Context context, EditText editText) {
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boolean output = true;
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if (editText.getText().length() == 0) {
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editText.setError(context.getString(R.string.create_key_empty));
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editText.requestFocus();
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output = false;
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} else {
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editText.setError(null);
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}
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return output;
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}
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
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View view = inflater.inflate(R.layout.create_yubikey_fragment, container, false);
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mBackButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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mCreateKeyActivity.loadFragment(null, FragAction.TO_LEFT);
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}
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});
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mNextButton.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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nextClicked();
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}
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});
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return view;
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}
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@Override
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public void onAttach(Activity activity) {
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super.onAttach(activity);
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mCreateKeyActivity = (CreateKeyActivity) getActivity();
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}
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private void nextClicked() {
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if (isEditTextNotEmpty(getActivity(), mNameEdit)) {
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// save state
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mCreateKeyActivity.mName = mNameEdit.getText().toString();
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CreateKeyEmailFragment frag = CreateKeyEmailFragment.newInstance();
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mCreateKeyActivity.loadFragment(frag, FragAction.TO_RIGHT);
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}
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}
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}
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@ -21,12 +21,12 @@ import android.app.Activity;
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import android.content.Intent;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.PersistableBundle;
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import android.view.View;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.api.OpenKeychainIntents;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Log;
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public class DecryptFilesActivity extends BaseActivity {
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@ -31,6 +31,7 @@ import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
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import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.operations.results.SingletonResult;
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import org.sufficientlysecure.keychain.pgp.PgpHelper;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.util.Log;
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@ -23,6 +23,7 @@ import android.os.Bundle;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Log;
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public class EditKeyActivity extends BaseActivity {
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@ -33,6 +33,7 @@ import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
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import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Passphrase;
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@ -26,6 +26,8 @@ import com.astuetz.PagerSlidingTabStrip;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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public class HelpActivity extends BaseActivity {
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public static final String EXTRA_SELECTED_TAB = "selected_tab";
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@ -37,6 +37,7 @@ import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
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import org.sufficientlysecure.keychain.operations.results.OperationResult;
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import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.util.Log;
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@ -22,6 +22,8 @@ import android.os.Bundle;
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import android.view.View;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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public class LogDisplayActivity extends BaseActivity {
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@ -22,6 +22,7 @@ import org.spongycastle.bcpg.HashAlgorithmTags;
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import org.spongycastle.util.encoders.Hex;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.util.Iso7816TLV;
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import org.sufficientlysecure.keychain.util.Log;
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@ -21,6 +21,7 @@ import android.widget.Toast;
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import org.spongycastle.util.encoders.Hex;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.ui.base.BaseActivity;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.util.Iso7816TLV;
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import org.sufficientlysecure.keychain.util.Log;
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@ -7,31 +7,19 @@
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package org.sufficientlysecure.keychain.ui;
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import android.annotation.TargetApi;
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import android.app.PendingIntent;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.nfc.NfcAdapter;
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import android.nfc.Tag;
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import android.nfc.tech.IsoDep;
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import android.os.Build;
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import android.os.Bundle;
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import android.view.WindowManager;
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import android.widget.Toast;
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import org.spongycastle.bcpg.HashAlgorithmTags;
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import org.spongycastle.util.encoders.Hex;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
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import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
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import org.sufficientlysecure.keychain.util.Iso7816TLV;
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import org.sufficientlysecure.keychain.ui.base.BaseNfcActivity;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Passphrase;
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import org.sufficientlysecure.keychain.util.Preferences;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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/**
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* This class provides a communication interface to OpenPGP applications on ISO SmartCard compliant
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@ -40,21 +28,13 @@ import java.nio.ByteBuffer;
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* For the full specs, see http://g10code.com/docs/openpgp-card-2.0.pdf
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*/
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@TargetApi(Build.VERSION_CODES.GINGERBREAD_MR1)
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public class NfcOperationActivity extends BaseActivity {
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public static final int REQUEST_CODE_PASSPHRASE = 1;
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public class NfcOperationActivity extends BaseNfcActivity {
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public static final String EXTRA_REQUIRED_INPUT = "required_input";
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public static final String RESULT_DATA = "result_data";
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private static final int TIMEOUT = 100000;
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private NfcAdapter mNfcAdapter;
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private IsoDep mIsoDep;
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RequiredInputParcel mRequiredInput;
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private Passphrase mPin;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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@ -64,45 +44,12 @@ public class NfcOperationActivity extends BaseActivity {
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getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
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Intent intent = getIntent();
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String action = intent.getAction();
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if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) {
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throw new AssertionError("should not happen: NfcOperationActivity.onCreate is called instead of onNewIntent!");
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}
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Bundle data = intent.getExtras();
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mRequiredInput = data.getParcelable(EXTRA_REQUIRED_INPUT);
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obtainPassphrase();
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}
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private void obtainPassphrase() {
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Preferences prefs = Preferences.getPreferences(this);
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if (prefs.useDefaultYubikeyPin()) {
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mPin = new Passphrase("123456");
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return;
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}
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Intent intent = new Intent(this, PassphraseDialogActivity.class);
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intent.putExtra(PassphraseDialogActivity.EXTRA_REQUIRED_INPUT,
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RequiredInputParcel.createRequiredPassphrase(mRequiredInput));
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startActivityForResult(intent, REQUEST_CODE_PASSPHRASE);
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}
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@Override
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protected void onActivityResult(int requestCode, int resultCode, Intent data) {
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switch (requestCode) {
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case REQUEST_CODE_PASSPHRASE:
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CryptoInputParcel input = data.getParcelableExtra(PassphraseDialogActivity.RESULT_DATA);
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mPin = input.getPassphrase();
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break;
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default:
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super.onActivityResult(requestCode, resultCode, data);
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}
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// obtain passphrase for this subkey
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obtainYubikeyPin(RequiredInputParcel.createRequiredPassphrase(mRequiredInput));
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}
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@Override
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@ -110,104 +57,8 @@ public class NfcOperationActivity extends BaseActivity {
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setContentView(R.layout.nfc_activity);
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}
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/**
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* Called when the system is about to start resuming a previous activity,
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* disables NFC Foreground Dispatch
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*/
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public void onPause() {
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super.onPause();
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Log.d(Constants.TAG, "NfcOperationActivity.onPause");
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disableNfcForegroundDispatch();
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}
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/**
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* Called when the activity will start interacting with the user,
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* enables NFC Foreground Dispatch
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*/
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public void onResume() {
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super.onResume();
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Log.d(Constants.TAG, "NfcOperationActivity.onResume");
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enableNfcForegroundDispatch();
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}
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/**
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* This activity is started as a singleTop activity.
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* All new NFC Intents which are delivered to this activity are handled here
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*/
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public void onNewIntent(Intent intent) {
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if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) {
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try {
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handleNdefDiscoveredIntent(intent);
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} catch (IOException e) {
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Log.e(Constants.TAG, "Connection error!", e);
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toast("Connection Error: " + e.getMessage());
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setResult(RESULT_CANCELED);
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finish();
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}
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}
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}
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/** Handle NFC communication and return a result.
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*
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* This method is called by onNewIntent above upon discovery of an NFC tag.
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* It handles initialization and login to the application, subsequently
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* calls either nfcCalculateSignature() or nfcDecryptSessionKey(), then
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* finishes the activity with an appropiate result.
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*
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* On general communication, see also
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* http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_annex-a.aspx
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*
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* References to pages are generally related to the OpenPGP Application
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* on ISO SmartCard Systems specification.
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*
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*/
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private void handleNdefDiscoveredIntent(Intent intent) throws IOException {
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Tag detectedTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
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// Connect to the detected tag, setting a couple of settings
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mIsoDep = IsoDep.get(detectedTag);
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mIsoDep.setTimeout(TIMEOUT); // timeout is set to 100 seconds to avoid cancellation during calculation
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mIsoDep.connect();
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|
||||
// SW1/2 0x9000 is the generic "ok" response, which we expect most of the time.
|
||||
// See specification, page 51
|
||||
String accepted = "9000";
|
||||
|
||||
// Command APDU (page 51) for SELECT FILE command (page 29)
|
||||
String opening =
|
||||
"00" // CLA
|
||||
+ "A4" // INS
|
||||
+ "04" // P1
|
||||
+ "00" // P2
|
||||
+ "06" // Lc (number of bytes)
|
||||
+ "D27600012401" // Data (6 bytes)
|
||||
+ "00"; // Le
|
||||
if ( ! card(opening).equals(accepted)) { // activate connection
|
||||
toast("Opening Error!");
|
||||
setResult(RESULT_CANCELED);
|
||||
finish();
|
||||
return;
|
||||
}
|
||||
|
||||
byte[] pin = new String(mPin.getCharArray()).getBytes();
|
||||
|
||||
// Command APDU for VERIFY command (page 32)
|
||||
String login =
|
||||
"00" // CLA
|
||||
+ "20" // INS
|
||||
+ "00" // P1
|
||||
+ "82" // P2 (PW1)
|
||||
+ String.format("%02x", pin.length) // Lc
|
||||
+ Hex.toHexString(pin);
|
||||
if ( ! card(login).equals(accepted)) { // login
|
||||
toast("Wrong PIN!");
|
||||
setResult(RESULT_CANCELED);
|
||||
finish();
|
||||
return;
|
||||
}
|
||||
@Override
|
||||
protected void onNfcPerform() throws IOException {
|
||||
|
||||
CryptoInputParcel resultData = new CryptoInputParcel(mRequiredInput.mSignatureTime);
|
||||
|
||||
@ -233,292 +84,9 @@ public class NfcOperationActivity extends BaseActivity {
|
||||
|
||||
// give data through for new service call
|
||||
Intent result = new Intent();
|
||||
result.putExtra(RESULT_DATA, resultData);
|
||||
result.putExtra(NfcOperationActivity.RESULT_DATA, resultData);
|
||||
setResult(RESULT_OK, result);
|
||||
finish();
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the user ID
|
||||
*
|
||||
* @return the user id as "name <email>"
|
||||
* @throws java.io.IOException
|
||||
*/
|
||||
public String getUserId() throws IOException {
|
||||
String info = "00CA006500";
|
||||
String data = "00CA005E00";
|
||||
return getName(card(info)) + " <" + (new String(Hex.decode(getDataField(card(data))))) + ">";
|
||||
}
|
||||
|
||||
/** Return the key id from application specific data stored on tag, or null
|
||||
* if it doesn't exist.
|
||||
*
|
||||
* @param idx Index of the key to return the fingerprint from.
|
||||
* @return The long key id of the requested key, or null if not found.
|
||||
*/
|
||||
public static Long nfcGetKeyId(IsoDep isoDep, int idx) throws IOException {
|
||||
byte[] fp = nfcGetFingerprint(isoDep, idx);
|
||||
if (fp == null) {
|
||||
return null;
|
||||
}
|
||||
ByteBuffer buf = ByteBuffer.wrap(fp);
|
||||
// skip first 12 bytes of the fingerprint
|
||||
buf.position(12);
|
||||
// the last eight bytes are the key id (big endian, which is default order in ByteBuffer)
|
||||
return buf.getLong();
|
||||
}
|
||||
|
||||
/** Return fingerprints of all keys from application specific data stored
|
||||
* on tag, or null if data not available.
|
||||
*
|
||||
* @return The fingerprints of all subkeys in a contiguous byte array.
|
||||
*/
|
||||
public static byte[] nfcGetFingerprints(IsoDep isoDep) throws IOException {
|
||||
String data = "00CA006E00";
|
||||
byte[] buf = isoDep.transceive(Hex.decode(data));
|
||||
|
||||
Iso7816TLV tlv = Iso7816TLV.readSingle(buf, true);
|
||||
Log.d(Constants.TAG, "nfc tlv data:\n" + tlv.prettyPrint());
|
||||
|
||||
Iso7816TLV fptlv = Iso7816TLV.findRecursive(tlv, 0xc5);
|
||||
if (fptlv == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return fptlv.mV;
|
||||
}
|
||||
|
||||
/** Return the fingerprint from application specific data stored on tag, or
|
||||
* null if it doesn't exist.
|
||||
*
|
||||
* @param idx Index of the key to return the fingerprint from.
|
||||
* @return The fingerprint of the requested key, or null if not found.
|
||||
*/
|
||||
public static byte[] nfcGetFingerprint(IsoDep isoDep, int idx) throws IOException {
|
||||
byte[] data = nfcGetFingerprints(isoDep);
|
||||
|
||||
// return the master key fingerprint
|
||||
ByteBuffer fpbuf = ByteBuffer.wrap(data);
|
||||
byte[] fp = new byte[20];
|
||||
fpbuf.position(idx*20);
|
||||
fpbuf.get(fp, 0, 20);
|
||||
|
||||
return fp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Calls to calculate the signature and returns the MPI value
|
||||
*
|
||||
* @param hash the hash for signing
|
||||
* @return a big integer representing the MPI for the given hash
|
||||
* @throws java.io.IOException
|
||||
*/
|
||||
public byte[] nfcCalculateSignature(byte[] hash, int hashAlgo) throws IOException {
|
||||
|
||||
// dsi, including Lc
|
||||
String dsi;
|
||||
|
||||
Log.i(Constants.TAG, "Hash: " + hashAlgo);
|
||||
switch (hashAlgo) {
|
||||
case HashAlgorithmTags.SHA1:
|
||||
if (hash.length != 20) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 10!");
|
||||
}
|
||||
dsi = "23" // Lc
|
||||
+ "3021" // Tag/Length of Sequence, the 0x21 includes all following 33 bytes
|
||||
+ "3009" // Tag/Length of Sequence, the 0x09 are the following header bytes
|
||||
+ "0605" + "2B0E03021A" // OID of SHA1
|
||||
+ "0500" // TLV coding of ZERO
|
||||
+ "0414" + getHex(hash); // 0x14 are 20 hash bytes
|
||||
break;
|
||||
case HashAlgorithmTags.RIPEMD160:
|
||||
if (hash.length != 20) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 20!");
|
||||
}
|
||||
dsi = "233021300906052B2403020105000414" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA224:
|
||||
if (hash.length != 28) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 28!");
|
||||
}
|
||||
dsi = "2F302D300D06096086480165030402040500041C" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA256:
|
||||
if (hash.length != 32) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 32!");
|
||||
}
|
||||
dsi = "333031300D060960864801650304020105000420" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA384:
|
||||
if (hash.length != 48) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 48!");
|
||||
}
|
||||
dsi = "433041300D060960864801650304020205000430" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA512:
|
||||
if (hash.length != 64) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 64!");
|
||||
}
|
||||
dsi = "533051300D060960864801650304020305000440" + getHex(hash);
|
||||
break;
|
||||
default:
|
||||
throw new RuntimeException("Not supported hash algo!");
|
||||
}
|
||||
|
||||
// Command APDU for PERFORM SECURITY OPERATION: COMPUTE DIGITAL SIGNATURE (page 37)
|
||||
String apdu =
|
||||
"002A9E9A" // CLA, INS, P1, P2
|
||||
+ dsi // digital signature input
|
||||
+ "00"; // Le
|
||||
|
||||
String response = card(apdu);
|
||||
|
||||
// split up response into signature and status
|
||||
String status = response.substring(response.length()-4);
|
||||
String signature = response.substring(0, response.length() - 4);
|
||||
|
||||
// while we are getting 0x61 status codes, retrieve more data
|
||||
while (status.substring(0, 2).equals("61")) {
|
||||
Log.d(Constants.TAG, "requesting more data, status " + status);
|
||||
// Send GET RESPONSE command
|
||||
response = card("00C00000" + status.substring(2));
|
||||
status = response.substring(response.length()-4);
|
||||
signature += response.substring(0, response.length()-4);
|
||||
}
|
||||
|
||||
Log.d(Constants.TAG, "final response:" + status);
|
||||
|
||||
if ( ! status.equals("9000")) {
|
||||
toast("Bad NFC response code: " + status);
|
||||
return null;
|
||||
}
|
||||
|
||||
// Make sure the signature we received is actually the expected number of bytes long!
|
||||
if (signature.length() != 256 && signature.length() != 512) {
|
||||
toast("Bad signature length! Expected 128 or 256 bytes, got " + signature.length() / 2);
|
||||
return null;
|
||||
}
|
||||
|
||||
return Hex.decode(signature);
|
||||
}
|
||||
|
||||
/**
|
||||
* Calls to calculate the signature and returns the MPI value
|
||||
*
|
||||
* @param encryptedSessionKey the encoded session key
|
||||
* @return the decoded session key
|
||||
* @throws java.io.IOException
|
||||
*/
|
||||
public byte[] nfcDecryptSessionKey(byte[] encryptedSessionKey) throws IOException {
|
||||
String firstApdu = "102a8086fe";
|
||||
String secondApdu = "002a808603";
|
||||
String le = "00";
|
||||
|
||||
byte[] one = new byte[254];
|
||||
// leave out first byte:
|
||||
System.arraycopy(encryptedSessionKey, 1, one, 0, one.length);
|
||||
|
||||
byte[] two = new byte[encryptedSessionKey.length - 1 - one.length];
|
||||
for (int i = 0; i < two.length; i++) {
|
||||
two[i] = encryptedSessionKey[i + one.length + 1];
|
||||
}
|
||||
|
||||
String first = card(firstApdu + getHex(one));
|
||||
String second = card(secondApdu + getHex(two) + le);
|
||||
|
||||
String decryptedSessionKey = getDataField(second);
|
||||
|
||||
Log.d(Constants.TAG, "decryptedSessionKey: " + decryptedSessionKey);
|
||||
|
||||
return Hex.decode(decryptedSessionKey);
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a message to the screen
|
||||
*
|
||||
* @param text the text which should be contained within the toast
|
||||
*/
|
||||
private void toast(String text) {
|
||||
Toast.makeText(this, text, Toast.LENGTH_LONG).show();
|
||||
}
|
||||
|
||||
/**
|
||||
* Receive new NFC Intents to this activity only by enabling foreground dispatch.
|
||||
* This can only be done in onResume!
|
||||
*/
|
||||
public void enableNfcForegroundDispatch() {
|
||||
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
|
||||
Intent nfcI = new Intent(this, NfcOperationActivity.class)
|
||||
.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
|
||||
PendingIntent nfcPendingIntent = PendingIntent.getActivity(this, 0, nfcI, PendingIntent.FLAG_CANCEL_CURRENT);
|
||||
IntentFilter[] writeTagFilters = new IntentFilter[]{
|
||||
new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED)
|
||||
};
|
||||
|
||||
// https://code.google.com/p/android/issues/detail?id=62918
|
||||
// maybe mNfcAdapter.enableReaderMode(); ?
|
||||
try {
|
||||
mNfcAdapter.enableForegroundDispatch(this, nfcPendingIntent, writeTagFilters, null);
|
||||
} catch (IllegalStateException e) {
|
||||
Log.i(Constants.TAG, "NfcForegroundDispatch Error!", e);
|
||||
}
|
||||
Log.d(Constants.TAG, "NfcForegroundDispatch has been enabled!");
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable foreground dispatch in onPause!
|
||||
*/
|
||||
public void disableNfcForegroundDispatch() {
|
||||
mNfcAdapter.disableForegroundDispatch(this);
|
||||
Log.d(Constants.TAG, "NfcForegroundDispatch has been disabled!");
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the name of the user out of the raw card output regarding card holder related data
|
||||
*
|
||||
* @param name the raw card holder related data from the card
|
||||
* @return the name given in this data
|
||||
*/
|
||||
public String getName(String name) {
|
||||
String slength;
|
||||
int ilength;
|
||||
name = name.substring(6);
|
||||
slength = name.substring(0, 2);
|
||||
ilength = Integer.parseInt(slength, 16) * 2;
|
||||
name = name.substring(2, ilength + 2);
|
||||
name = (new String(Hex.decode(name))).replace('<', ' ');
|
||||
return (name);
|
||||
}
|
||||
|
||||
/**
|
||||
* Reduces the raw data from the card by four characters
|
||||
*
|
||||
* @param output the raw data from the card
|
||||
* @return the data field of that data
|
||||
*/
|
||||
private String getDataField(String output) {
|
||||
return output.substring(0, output.length() - 4);
|
||||
}
|
||||
|
||||
/**
|
||||
* Communicates with the OpenPgpCard via the APDU
|
||||
*
|
||||
* @param hex the hexadecimal APDU
|
||||
* @return The answer from the card
|
||||
* @throws java.io.IOException throws an exception if something goes wrong
|
||||
*/
|
||||
public String card(String hex) throws IOException {
|
||||
return getHex(mIsoDep.transceive(Hex.decode(hex)));
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts a byte array into an hex string
|
||||
*
|
||||
* @param raw the byte array representation
|
||||
* @return the hexadecimal string representation
|
||||
*/
|
||||
public static String getHex(byte[] raw) {
|
||||
return new String(Hex.encode(raw));
|
||||
}
|
||||
}
|
||||
|
@ -30,6 +30,7 @@ import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.R;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
|
||||
import org.sufficientlysecure.keychain.ui.util.Notify;
|
||||
import org.sufficientlysecure.keychain.ui.util.Notify.Style;
|
||||
|
@ -40,6 +40,7 @@ import org.sufficientlysecure.keychain.provider.KeychainContract;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentService;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.util.Notify;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
import org.sufficientlysecure.keychain.util.ParcelableFileCache;
|
||||
|
@ -27,6 +27,7 @@ import android.view.ViewGroup;
|
||||
import android.widget.TextView;
|
||||
|
||||
import org.sufficientlysecure.keychain.R;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.widget.Editor;
|
||||
import org.sufficientlysecure.keychain.ui.widget.Editor.EditorListener;
|
||||
import org.sufficientlysecure.keychain.ui.widget.KeyServerEditor;
|
||||
|
@ -37,6 +37,7 @@ import org.sufficientlysecure.keychain.provider.KeychainContract;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentService;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
import org.sufficientlysecure.keychain.util.Preferences;
|
||||
|
||||
|
@ -40,6 +40,7 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
|
||||
|
@ -66,6 +66,7 @@ import org.sufficientlysecure.keychain.service.KeychainIntentService;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler.MessageStatus;
|
||||
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.dialog.DeleteKeyDialogFragment;
|
||||
import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
|
||||
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
|
||||
|
@ -38,6 +38,7 @@ import org.sufficientlysecure.keychain.pgp.KeyRing;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
|
||||
import org.sufficientlysecure.keychain.ui.base.BaseActivity;
|
||||
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
|
||||
import org.sufficientlysecure.keychain.util.ContactHelper;
|
||||
import org.sufficientlysecure.keychain.util.ExportHelper;
|
||||
|
@ -15,7 +15,7 @@
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
package org.sufficientlysecure.keychain.ui;
|
||||
package org.sufficientlysecure.keychain.ui.base;
|
||||
|
||||
import android.app.Activity;
|
||||
import android.os.Bundle;
|
||||
@ -63,8 +63,8 @@ public abstract class BaseActivity extends ActionBarActivity {
|
||||
* Inflate custom design to look like a full screen dialog, as specified in Material Design Guidelines
|
||||
* see http://www.google.com/design/spec/components/dialogs.html#dialogs-full-screen-dialogs
|
||||
*/
|
||||
protected void setFullScreenDialogDoneClose(int doneText, View.OnClickListener doneOnClickListener,
|
||||
View.OnClickListener cancelOnClickListener) {
|
||||
public void setFullScreenDialogDoneClose(int doneText, View.OnClickListener doneOnClickListener,
|
||||
View.OnClickListener cancelOnClickListener) {
|
||||
setActionBarIcon(R.drawable.ic_close_white_24dp);
|
||||
|
||||
// Inflate the custom action bar view
|
@ -0,0 +1,448 @@
|
||||
package org.sufficientlysecure.keychain.ui.base;
|
||||
|
||||
|
||||
import java.io.IOException;
|
||||
import java.nio.ByteBuffer;
|
||||
|
||||
import android.app.PendingIntent;
|
||||
import android.content.Intent;
|
||||
import android.content.IntentFilter;
|
||||
import android.nfc.NfcAdapter;
|
||||
import android.nfc.Tag;
|
||||
import android.nfc.tech.IsoDep;
|
||||
import android.os.Bundle;
|
||||
import android.widget.Toast;
|
||||
|
||||
import org.spongycastle.bcpg.HashAlgorithmTags;
|
||||
import org.spongycastle.util.encoders.Hex;
|
||||
import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
|
||||
import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
|
||||
import org.sufficientlysecure.keychain.ui.NfcOperationActivity;
|
||||
import org.sufficientlysecure.keychain.ui.PassphraseDialogActivity;
|
||||
import org.sufficientlysecure.keychain.util.Iso7816TLV;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
import org.sufficientlysecure.keychain.util.Passphrase;
|
||||
import org.sufficientlysecure.keychain.util.Preferences;
|
||||
|
||||
|
||||
public abstract class BaseNfcActivity extends BaseActivity {
|
||||
|
||||
public static final int REQUEST_CODE_PASSPHRASE = 1;
|
||||
|
||||
protected Passphrase mPin;
|
||||
private NfcAdapter mNfcAdapter;
|
||||
private IsoDep mIsoDep;
|
||||
|
||||
private static final int TIMEOUT = 100000;
|
||||
|
||||
@Override
|
||||
protected void onCreate(Bundle savedInstanceState) {
|
||||
super.onCreate(savedInstanceState);
|
||||
|
||||
Intent intent = getIntent();
|
||||
String action = intent.getAction();
|
||||
if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) {
|
||||
throw new AssertionError("should not happen: NfcOperationActivity.onCreate is called instead of onNewIntent!");
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* This activity is started as a singleTop activity.
|
||||
* All new NFC Intents which are delivered to this activity are handled here
|
||||
*/
|
||||
@Override
|
||||
public void onNewIntent(Intent intent) {
|
||||
if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) {
|
||||
try {
|
||||
handleNdefDiscoveredIntent(intent);
|
||||
} catch (IOException e) {
|
||||
Log.e(Constants.TAG, "Connection error!", e);
|
||||
toast("Connection Error: " + e.getMessage());
|
||||
setResult(RESULT_CANCELED);
|
||||
finish();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Called when the system is about to start resuming a previous activity,
|
||||
* disables NFC Foreground Dispatch
|
||||
*/
|
||||
public void onPause() {
|
||||
super.onPause();
|
||||
Log.d(Constants.TAG, "NfcOperationActivity.onPause");
|
||||
|
||||
disableNfcForegroundDispatch();
|
||||
}
|
||||
|
||||
/**
|
||||
* Called when the activity will start interacting with the user,
|
||||
* enables NFC Foreground Dispatch
|
||||
*/
|
||||
public void onResume() {
|
||||
super.onResume();
|
||||
Log.d(Constants.TAG, "NfcOperationActivity.onResume");
|
||||
|
||||
enableNfcForegroundDispatch();
|
||||
}
|
||||
|
||||
protected void obtainYubikeyPin(RequiredInputParcel requiredInput) {
|
||||
|
||||
Preferences prefs = Preferences.getPreferences(this);
|
||||
if (prefs.useDefaultYubikeyPin()) {
|
||||
mPin = new Passphrase("123456");
|
||||
return;
|
||||
}
|
||||
|
||||
Intent intent = new Intent(this, PassphraseDialogActivity.class);
|
||||
intent.putExtra(PassphraseDialogActivity.EXTRA_REQUIRED_INPUT,
|
||||
RequiredInputParcel.createRequiredPassphrase(requiredInput));
|
||||
startActivityForResult(intent, REQUEST_CODE_PASSPHRASE);
|
||||
|
||||
}
|
||||
|
||||
protected void setYubikeyPin(Passphrase pin) {
|
||||
mPin = pin;
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
|
||||
switch (requestCode) {
|
||||
case REQUEST_CODE_PASSPHRASE:
|
||||
CryptoInputParcel input = data.getParcelableExtra(PassphraseDialogActivity.RESULT_DATA);
|
||||
mPin = input.getPassphrase();
|
||||
break;
|
||||
|
||||
default:
|
||||
super.onActivityResult(requestCode, resultCode, data);
|
||||
}
|
||||
}
|
||||
|
||||
/** Handle NFC communication and return a result.
|
||||
*
|
||||
* This method is called by onNewIntent above upon discovery of an NFC tag.
|
||||
* It handles initialization and login to the application, subsequently
|
||||
* calls either nfcCalculateSignature() or nfcDecryptSessionKey(), then
|
||||
* finishes the activity with an appropiate result.
|
||||
*
|
||||
* On general communication, see also
|
||||
* http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_annex-a.aspx
|
||||
*
|
||||
* References to pages are generally related to the OpenPGP Application
|
||||
* on ISO SmartCard Systems specification.
|
||||
*
|
||||
*/
|
||||
protected void handleNdefDiscoveredIntent(Intent intent) throws IOException {
|
||||
|
||||
Tag detectedTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
|
||||
|
||||
// Connect to the detected tag, setting a couple of settings
|
||||
mIsoDep = IsoDep.get(detectedTag);
|
||||
mIsoDep.setTimeout(TIMEOUT); // timeout is set to 100 seconds to avoid cancellation during calculation
|
||||
mIsoDep.connect();
|
||||
|
||||
// SW1/2 0x9000 is the generic "ok" response, which we expect most of the time.
|
||||
// See specification, page 51
|
||||
String accepted = "9000";
|
||||
|
||||
// Command APDU (page 51) for SELECT FILE command (page 29)
|
||||
String opening =
|
||||
"00" // CLA
|
||||
+ "A4" // INS
|
||||
+ "04" // P1
|
||||
+ "00" // P2
|
||||
+ "06" // Lc (number of bytes)
|
||||
+ "D27600012401" // Data (6 bytes)
|
||||
+ "00"; // Le
|
||||
if ( ! nfcCommunicate(opening).equals(accepted)) { // activate connection
|
||||
toast("Opening Error!");
|
||||
setResult(RESULT_CANCELED);
|
||||
finish();
|
||||
return;
|
||||
}
|
||||
|
||||
if (mPin != null) {
|
||||
|
||||
byte[] pin = new String(mPin.getCharArray()).getBytes();
|
||||
|
||||
// Command APDU for VERIFY command (page 32)
|
||||
String login =
|
||||
"00" // CLA
|
||||
+ "20" // INS
|
||||
+ "00" // P1
|
||||
+ "82" // P2 (PW1)
|
||||
+ String.format("%02x", pin.length) // Lc
|
||||
+ Hex.toHexString(pin);
|
||||
if (!nfcCommunicate(login).equals(accepted)) { // login
|
||||
toast("Wrong PIN!");
|
||||
setResult(RESULT_CANCELED);
|
||||
finish();
|
||||
return;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
onNfcPerform();
|
||||
|
||||
mIsoDep.close();
|
||||
mIsoDep = null;
|
||||
|
||||
}
|
||||
|
||||
protected abstract void onNfcPerform() throws IOException;
|
||||
|
||||
/** Return the key id from application specific data stored on tag, or null
|
||||
* if it doesn't exist.
|
||||
*
|
||||
* @param idx Index of the key to return the fingerprint from.
|
||||
* @return The long key id of the requested key, or null if not found.
|
||||
*/
|
||||
public Long nfcGetKeyId(int idx) throws IOException {
|
||||
byte[] fp = nfcGetFingerprint(idx);
|
||||
if (fp == null) {
|
||||
return null;
|
||||
}
|
||||
ByteBuffer buf = ByteBuffer.wrap(fp);
|
||||
// skip first 12 bytes of the fingerprint
|
||||
buf.position(12);
|
||||
// the last eight bytes are the key id (big endian, which is default order in ByteBuffer)
|
||||
return buf.getLong();
|
||||
}
|
||||
|
||||
/** Return fingerprints of all keys from application specific data stored
|
||||
* on tag, or null if data not available.
|
||||
*
|
||||
* @return The fingerprints of all subkeys in a contiguous byte array.
|
||||
*/
|
||||
public byte[] nfcGetFingerprints() throws IOException {
|
||||
String data = "00CA006E00";
|
||||
byte[] buf = mIsoDep.transceive(Hex.decode(data));
|
||||
|
||||
Iso7816TLV tlv = Iso7816TLV.readSingle(buf, true);
|
||||
Log.d(Constants.TAG, "nfc tlv data:\n" + tlv.prettyPrint());
|
||||
|
||||
Iso7816TLV fptlv = Iso7816TLV.findRecursive(tlv, 0xc5);
|
||||
if (fptlv == null) {
|
||||
return null;
|
||||
}
|
||||
|
||||
return fptlv.mV;
|
||||
}
|
||||
|
||||
/** Return the fingerprint from application specific data stored on tag, or
|
||||
* null if it doesn't exist.
|
||||
*
|
||||
* @param idx Index of the key to return the fingerprint from.
|
||||
* @return The fingerprint of the requested key, or null if not found.
|
||||
*/
|
||||
public byte[] nfcGetFingerprint(int idx) throws IOException {
|
||||
byte[] data = nfcGetFingerprints();
|
||||
|
||||
// return the master key fingerprint
|
||||
ByteBuffer fpbuf = ByteBuffer.wrap(data);
|
||||
byte[] fp = new byte[20];
|
||||
fpbuf.position(idx*20);
|
||||
fpbuf.get(fp, 0, 20);
|
||||
|
||||
return fp;
|
||||
}
|
||||
|
||||
|
||||
public String nfcGetUserId() throws IOException {
|
||||
String info = "00CA006500";
|
||||
String data = "00CA005E00";
|
||||
return nfcGetHolderName(nfcCommunicate(info)) + " <" + (new String(Hex.decode(nfcGetDataField(
|
||||
nfcCommunicate(data))))) + ">";
|
||||
}
|
||||
|
||||
/**
|
||||
* Calls to calculate the signature and returns the MPI value
|
||||
*
|
||||
* @param hash the hash for signing
|
||||
* @return a big integer representing the MPI for the given hash
|
||||
*/
|
||||
public byte[] nfcCalculateSignature(byte[] hash, int hashAlgo) throws IOException {
|
||||
|
||||
// dsi, including Lc
|
||||
String dsi;
|
||||
|
||||
Log.i(Constants.TAG, "Hash: " + hashAlgo);
|
||||
switch (hashAlgo) {
|
||||
case HashAlgorithmTags.SHA1:
|
||||
if (hash.length != 20) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 10!");
|
||||
}
|
||||
dsi = "23" // Lc
|
||||
+ "3021" // Tag/Length of Sequence, the 0x21 includes all following 33 bytes
|
||||
+ "3009" // Tag/Length of Sequence, the 0x09 are the following header bytes
|
||||
+ "0605" + "2B0E03021A" // OID of SHA1
|
||||
+ "0500" // TLV coding of ZERO
|
||||
+ "0414" + getHex(hash); // 0x14 are 20 hash bytes
|
||||
break;
|
||||
case HashAlgorithmTags.RIPEMD160:
|
||||
if (hash.length != 20) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 20!");
|
||||
}
|
||||
dsi = "233021300906052B2403020105000414" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA224:
|
||||
if (hash.length != 28) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 28!");
|
||||
}
|
||||
dsi = "2F302D300D06096086480165030402040500041C" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA256:
|
||||
if (hash.length != 32) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 32!");
|
||||
}
|
||||
dsi = "333031300D060960864801650304020105000420" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA384:
|
||||
if (hash.length != 48) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 48!");
|
||||
}
|
||||
dsi = "433041300D060960864801650304020205000430" + getHex(hash);
|
||||
break;
|
||||
case HashAlgorithmTags.SHA512:
|
||||
if (hash.length != 64) {
|
||||
throw new RuntimeException("Bad hash length (" + hash.length + ", expected 64!");
|
||||
}
|
||||
dsi = "533051300D060960864801650304020305000440" + getHex(hash);
|
||||
break;
|
||||
default:
|
||||
throw new RuntimeException("Not supported hash algo!");
|
||||
}
|
||||
|
||||
// Command APDU for PERFORM SECURITY OPERATION: COMPUTE DIGITAL SIGNATURE (page 37)
|
||||
String apdu =
|
||||
"002A9E9A" // CLA, INS, P1, P2
|
||||
+ dsi // digital signature input
|
||||
+ "00"; // Le
|
||||
|
||||
String response = nfcCommunicate(apdu);
|
||||
|
||||
// split up response into signature and status
|
||||
String status = response.substring(response.length()-4);
|
||||
String signature = response.substring(0, response.length() - 4);
|
||||
|
||||
// while we are getting 0x61 status codes, retrieve more data
|
||||
while (status.substring(0, 2).equals("61")) {
|
||||
Log.d(Constants.TAG, "requesting more data, status " + status);
|
||||
// Send GET RESPONSE command
|
||||
response = nfcCommunicate("00C00000" + status.substring(2));
|
||||
status = response.substring(response.length()-4);
|
||||
signature += response.substring(0, response.length()-4);
|
||||
}
|
||||
|
||||
Log.d(Constants.TAG, "final response:" + status);
|
||||
|
||||
if ( ! "9000".equals(status)) {
|
||||
toast("Bad NFC response code: " + status);
|
||||
return null;
|
||||
}
|
||||
|
||||
// Make sure the signature we received is actually the expected number of bytes long!
|
||||
if (signature.length() != 256 && signature.length() != 512) {
|
||||
toast("Bad signature length! Expected 128 or 256 bytes, got " + signature.length() / 2);
|
||||
return null;
|
||||
}
|
||||
|
||||
return Hex.decode(signature);
|
||||
}
|
||||
|
||||
/**
|
||||
* Calls to calculate the signature and returns the MPI value
|
||||
*
|
||||
* @param encryptedSessionKey the encoded session key
|
||||
* @return the decoded session key
|
||||
*/
|
||||
public byte[] nfcDecryptSessionKey(byte[] encryptedSessionKey) throws IOException {
|
||||
String firstApdu = "102a8086fe";
|
||||
String secondApdu = "002a808603";
|
||||
String le = "00";
|
||||
|
||||
byte[] one = new byte[254];
|
||||
// leave out first byte:
|
||||
System.arraycopy(encryptedSessionKey, 1, one, 0, one.length);
|
||||
|
||||
byte[] two = new byte[encryptedSessionKey.length - 1 - one.length];
|
||||
for (int i = 0; i < two.length; i++) {
|
||||
two[i] = encryptedSessionKey[i + one.length + 1];
|
||||
}
|
||||
|
||||
String first = nfcCommunicate(firstApdu + getHex(one));
|
||||
String second = nfcCommunicate(secondApdu + getHex(two) + le);
|
||||
|
||||
String decryptedSessionKey = nfcGetDataField(second);
|
||||
|
||||
Log.d(Constants.TAG, "decryptedSessionKey: " + decryptedSessionKey);
|
||||
|
||||
return Hex.decode(decryptedSessionKey);
|
||||
}
|
||||
|
||||
/**
|
||||
* Prints a message to the screen
|
||||
*
|
||||
* @param text the text which should be contained within the toast
|
||||
*/
|
||||
protected void toast(String text) {
|
||||
Toast.makeText(this, text, Toast.LENGTH_LONG).show();
|
||||
}
|
||||
|
||||
/**
|
||||
* Receive new NFC Intents to this activity only by enabling foreground dispatch.
|
||||
* This can only be done in onResume!
|
||||
*/
|
||||
public void enableNfcForegroundDispatch() {
|
||||
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
|
||||
Intent nfcI = new Intent(this, NfcOperationActivity.class)
|
||||
.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
|
||||
PendingIntent nfcPendingIntent = PendingIntent.getActivity(this, 0, nfcI, PendingIntent.FLAG_CANCEL_CURRENT);
|
||||
IntentFilter[] writeTagFilters = new IntentFilter[]{
|
||||
new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED)
|
||||
};
|
||||
|
||||
// https://code.google.com/p/android/issues/detail?id=62918
|
||||
// maybe mNfcAdapter.enableReaderMode(); ?
|
||||
try {
|
||||
mNfcAdapter.enableForegroundDispatch(this, nfcPendingIntent, writeTagFilters, null);
|
||||
} catch (IllegalStateException e) {
|
||||
Log.i(Constants.TAG, "NfcForegroundDispatch Error!", e);
|
||||
}
|
||||
Log.d(Constants.TAG, "NfcForegroundDispatch has been enabled!");
|
||||
}
|
||||
|
||||
/**
|
||||
* Disable foreground dispatch in onPause!
|
||||
*/
|
||||
public void disableNfcForegroundDispatch() {
|
||||
mNfcAdapter.disableForegroundDispatch(this);
|
||||
Log.d(Constants.TAG, "NfcForegroundDispatch has been disabled!");
|
||||
}
|
||||
|
||||
public String nfcGetHolderName(String name) {
|
||||
String slength;
|
||||
int ilength;
|
||||
name = name.substring(6);
|
||||
slength = name.substring(0, 2);
|
||||
ilength = Integer.parseInt(slength, 16) * 2;
|
||||
name = name.substring(2, ilength + 2);
|
||||
name = (new String(Hex.decode(name))).replace('<', ' ');
|
||||
return (name);
|
||||
}
|
||||
|
||||
private String nfcGetDataField(String output) {
|
||||
return output.substring(0, output.length() - 4);
|
||||
}
|
||||
|
||||
public String nfcCommunicate(String apdu) throws IOException {
|
||||
return getHex(mIsoDep.transceive(Hex.decode(apdu)));
|
||||
}
|
||||
|
||||
public static String getHex(byte[] raw) {
|
||||
return new String(Hex.encode(raw));
|
||||
}
|
||||
|
||||
}
|
@ -50,22 +50,22 @@
|
||||
android:clickable="true"
|
||||
style="?android:attr/borderlessButtonStyle" />
|
||||
|
||||
<!--<TextView-->
|
||||
<!--android:id="@+id/create_key_yubikey_button"-->
|
||||
<!--android:paddingLeft="16dp"-->
|
||||
<!--android:paddingRight="16dp"-->
|
||||
<!--android:textAppearance="?android:attr/textAppearanceMedium"-->
|
||||
<!--android:layout_width="match_parent"-->
|
||||
<!--android:layout_height="wrap_content"-->
|
||||
<!--android:layout_weight="1"-->
|
||||
<!--android:text="@string/first_time_yubikey"-->
|
||||
<!--android:textAllCaps="true"-->
|
||||
<!--android:minHeight="?android:attr/listPreferredItemHeight"-->
|
||||
<!--android:drawableRight="@drawable/ic_chevron_right_grey_24dp"-->
|
||||
<!--android:drawablePadding="8dp"-->
|
||||
<!--android:gravity="right|center_vertical"-->
|
||||
<!--android:clickable="true"-->
|
||||
<!--style="?android:attr/borderlessButtonStyle" />-->
|
||||
<TextView
|
||||
android:id="@+id/create_key_yubikey_button"
|
||||
android:paddingLeft="16dp"
|
||||
android:paddingRight="16dp"
|
||||
android:textAppearance="?android:attr/textAppearanceMedium"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:layout_weight="1"
|
||||
android:text="@string/first_time_yubikey"
|
||||
android:textAllCaps="true"
|
||||
android:minHeight="?android:attr/listPreferredItemHeight"
|
||||
android:drawableRight="@drawable/ic_chevron_right_grey_24dp"
|
||||
android:drawablePadding="8dp"
|
||||
android:gravity="right|center_vertical"
|
||||
android:clickable="true"
|
||||
style="?android:attr/borderlessButtonStyle" />
|
||||
|
||||
<TextView
|
||||
android:id="@+id/create_key_import_button"
|
||||
@ -101,4 +101,4 @@
|
||||
android:clickable="true"
|
||||
style="?android:attr/borderlessButtonStyle" />
|
||||
</LinearLayout>
|
||||
</RelativeLayout>
|
||||
</RelativeLayout>
|
||||
|
83
OpenKeychain/src/main/res/layout/create_yubikey_fragment.xml
Normal file
83
OpenKeychain/src/main/res/layout/create_yubikey_fragment.xml
Normal file
@ -0,0 +1,83 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="match_parent">
|
||||
|
||||
<ScrollView
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="match_parent"
|
||||
android:fillViewport="true"
|
||||
android:layout_above="@+id/create_key_buttons">
|
||||
|
||||
<LinearLayout
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:paddingLeft="16dp"
|
||||
android:paddingRight="16dp"
|
||||
android:orientation="vertical">
|
||||
|
||||
<TextView
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content"
|
||||
android:layout_marginTop="16dp"
|
||||
android:layout_marginLeft="8dp"
|
||||
android:textAppearance="?android:attr/textAppearanceMedium"
|
||||
android:text="Hold Yubikey against device dawg" />
|
||||
|
||||
<TextView
|
||||
android:layout_width="wrap_content"
|
||||
android:layout_height="wrap_content"
|
||||
android:layout_marginTop="16dp"
|
||||
android:layout_marginLeft="8dp"
|
||||
android:textAppearance="?android:attr/textAppearanceMedium"
|
||||
android:text="(yubikey fingerprint)" />
|
||||
|
||||
</LinearLayout>
|
||||
|
||||
</ScrollView>
|
||||
|
||||
<LinearLayout
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:orientation="horizontal"
|
||||
android:layout_alignParentBottom="true"
|
||||
android:layout_alignParentLeft="true"
|
||||
android:layout_alignParentStart="true"
|
||||
android:background="@color/holo_gray_bright"
|
||||
android:id="@+id/create_key_buttons">
|
||||
|
||||
<TextView
|
||||
android:id="@+id/create_key_back_button"
|
||||
android:paddingLeft="16dp"
|
||||
android:paddingRight="16dp"
|
||||
android:textAppearance="?android:attr/textAppearanceMedium"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:layout_weight="1"
|
||||
android:text="@string/btn_back"
|
||||
android:textAllCaps="true"
|
||||
android:minHeight="?android:attr/listPreferredItemHeight"
|
||||
android:drawableLeft="@drawable/ic_chevron_left_grey_24dp"
|
||||
android:drawablePadding="8dp"
|
||||
android:gravity="left|center_vertical"
|
||||
android:clickable="true"
|
||||
style="?android:attr/borderlessButtonStyle" />
|
||||
|
||||
<TextView
|
||||
android:id="@+id/create_key_next_button"
|
||||
android:paddingLeft="16dp"
|
||||
android:paddingRight="16dp"
|
||||
android:textAppearance="?android:attr/textAppearanceMedium"
|
||||
android:layout_width="match_parent"
|
||||
android:layout_height="wrap_content"
|
||||
android:layout_weight="1"
|
||||
android:text="@string/btn_next"
|
||||
android:textAllCaps="true"
|
||||
android:minHeight="?android:attr/listPreferredItemHeight"
|
||||
android:drawableRight="@drawable/ic_chevron_right_grey_24dp"
|
||||
android:drawablePadding="8dp"
|
||||
android:gravity="right|center_vertical"
|
||||
android:clickable="true"
|
||||
style="?android:attr/borderlessButtonStyle" />
|
||||
</LinearLayout>
|
||||
</RelativeLayout>
|
Loading…
Reference in New Issue
Block a user