Merge change 25705 into eclair

/*

 * Copyright (C) 2009 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package android.security;

import android.content.ActivityNotFoundException;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

import java.security.KeyPair;

/**

 * {@hide}

 */

public class Credentials {

    private static final String LOGTAG = "Credentials";

    private static final String UNLOCK_ACTION = "android.credentials.UNLOCK";

    private static final String INSTALL_ACTION = "android.credentials.INSTALL";

    private static Credentials singleton;

    /** Key prefix for CA certificates. */

    public static final String CA_CERTIFICATE = "CACERT_";

    /** Key prefix for user certificates. */

    public static final String USER_CERTIFICATE = "USRCERT_";

    /** Key prefix for user private keys. */

    public static final String USER_PRIVATE_KEY = "USRPKEY_";

    /** Key prefix for VPN. */

    public static final String VPN = "VPN_";

    /** Key prefix for WIFI. */

    public static final String WIFI = "WIFI_";

    /** Data type for public keys. */

    public static final String PUBLIC_KEY = "KEY";

    /** Data type for private keys. */

    public static final String PRIVATE_KEY = "PKEY";

    /** Data type for certificates. */

    public static final String CERTIFICATE = "CERT";

    /** Data type for PKCS12. */

    public static final String PKCS12 = "PKCS12";

    public static Credentials getInstance() {

        if (singleton == null) {

            singleton = new Credentials();

        }

        return singleton;

    }

    public void unlock(Context context) {

        try {

            Intent intent = new Intent(UNLOCK_ACTION);

            context.startActivity(intent);

        } catch (ActivityNotFoundException e) {

            Log.w(LOGTAG, e.toString());

        }

    }

    public void install(Context context, KeyPair pair) {

        try {

            Intent intent = new Intent(INSTALL_ACTION);

            intent.putExtra(PRIVATE_KEY, pair.getPrivate().getEncoded());

            intent.putExtra(PUBLIC_KEY, pair.getPublic().getEncoded());

            context.startActivity(intent);

        } catch (ActivityNotFoundException e) {

            Log.w(LOGTAG, e.toString());

        }

    }

    public void install(Context context, String type, byte[] value) {

        try {

            Intent intent = new Intent(INSTALL_ACTION);

            intent.putExtra(type, value);

            context.startActivity(intent);

        } catch (ActivityNotFoundException e) {

            Log.w(LOGTAG, e.toString());

        }

    }

}