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Commit 20f2f24d authored by Bo Zhu's avatar Bo Zhu
Browse files

Replace the native scrypt in SyntheticPasswordManager by

android.security.Scrypt

Fix: 77491771
Test: atest FrameworksServicesTests:com.android.server.locksettings
Change-Id: I6c25fb6faec7b16f56c838db9d3f378bf2f476fd
parent ed11f757
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+2 −2
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ import android.hardware.weaver.V1_0.WeaverStatus;
import android.os.RemoteException;
import android.os.UserManager;
import android.security.GateKeeper;
import android.security.Scrypt;
import android.service.gatekeeper.GateKeeperResponse;
import android.service.gatekeeper.IGateKeeperService;
import android.util.ArrayMap;
@@ -1173,11 +1174,10 @@ public class SyntheticPasswordManager {
    }

    protected byte[] scrypt(String password, byte[] salt, int N, int r, int p, int outLen) {
        return nativeScrypt(password.getBytes(), salt, N, r, p, outLen);
        return new Scrypt().scrypt(password.getBytes(), salt, N, r, p, outLen);
    }

    native long nativeSidFromPasswordHandle(byte[] handle);
    native byte[] nativeScrypt(byte[] password, byte[] salt, int N, int r, int p, int outLen);

    protected static ArrayList<Byte> toByteArrayList(byte[] data) {
        ArrayList<Byte> result = new ArrayList<Byte>(data.length);
+0 −2
Original line number Diff line number Diff line
@@ -31,7 +31,6 @@ cc_library_static {
        "com_android_server_input_InputManagerService.cpp",
        "com_android_server_lights_LightsService.cpp",
        "com_android_server_location_GnssLocationProvider.cpp",
        "com_android_server_locksettings_SyntheticPasswordManager.cpp",
        "com_android_server_net_NetworkStatsService.cpp",
        "com_android_server_power_PowerManagerService.cpp",
        "com_android_server_security_VerityUtils.cpp",
@@ -126,7 +125,6 @@ cc_defaults {

    static_libs: [
        "android.hardware.broadcastradio@common-utils-1x-lib",
        "libscrypt_static",
    ],

    product_variables: {
+0 −90
Original line number Diff line number Diff line
/*
 * Copyright (C) 2016 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.
 */

#define LOG_TAG "SyntheticPasswordManager"

#include <nativehelper/JNIHelp.h>
#include "jni.h"

#include <android_runtime/Log.h>
#include <utils/Timers.h>
#include <utils/misc.h>
#include <utils/String8.h>
#include <utils/Log.h>
#include <gatekeeper/password_handle.h>


extern "C" {
#include "crypto_scrypt.h"
}

namespace android {

static jlong android_server_SyntheticPasswordManager_nativeSidFromPasswordHandle(JNIEnv* env, jobject, jbyteArray handleArray) {

    jbyte* data = (jbyte*)env->GetPrimitiveArrayCritical(handleArray, NULL);

    if (data != NULL) {
        const gatekeeper::password_handle_t *handle =
                reinterpret_cast<const gatekeeper::password_handle_t *>(data);
        jlong sid = handle->user_id;
        env->ReleasePrimitiveArrayCritical(handleArray, data, JNI_ABORT);
        return sid;
    } else {
        return 0;
    }
}

static jbyteArray android_server_SyntheticPasswordManager_nativeScrypt(JNIEnv* env, jobject, jbyteArray password, jbyteArray salt, jint N, jint r, jint p, jint outLen) {
    if (!password || !salt) {
        return NULL;
    }

    int passwordLen = env->GetArrayLength(password);
    int saltLen = env->GetArrayLength(salt);
    jbyteArray ret = env->NewByteArray(outLen);

    jbyte* passwordPtr = (jbyte*)env->GetByteArrayElements(password, NULL);
    jbyte* saltPtr = (jbyte*)env->GetByteArrayElements(salt, NULL);
    jbyte* retPtr = (jbyte*)env->GetByteArrayElements(ret, NULL);

    int rc = crypto_scrypt((const uint8_t *)passwordPtr, passwordLen,
                       (const uint8_t *)saltPtr, saltLen, N, r, p, (uint8_t *)retPtr,
                       outLen);
    env->ReleaseByteArrayElements(password, passwordPtr, JNI_ABORT);
    env->ReleaseByteArrayElements(salt, saltPtr, JNI_ABORT);
    env->ReleaseByteArrayElements(ret, retPtr, 0);

    if (!rc) {
        return ret;
    } else {
        SLOGE("scrypt failed");
        return NULL;
    }
}

static const JNINativeMethod sMethods[] = {
     /* name, signature, funcPtr */
    {"nativeSidFromPasswordHandle", "([B)J", (void*)android_server_SyntheticPasswordManager_nativeSidFromPasswordHandle},
    {"nativeScrypt", "([B[BIIII)[B", (void*)android_server_SyntheticPasswordManager_nativeScrypt},
};

int register_android_server_SyntheticPasswordManager(JNIEnv* env) {
    return jniRegisterNativeMethods(env, "com/android/server/locksettings/SyntheticPasswordManager",
                                    sMethods, NELEM(sMethods));
}

} /* namespace android */
+0 −2
Original line number Diff line number Diff line
@@ -50,7 +50,6 @@ int register_android_server_tv_TvInputHal(JNIEnv* env);
int register_android_server_PersistentDataBlockService(JNIEnv* env);
int register_android_server_Watchdog(JNIEnv* env);
int register_android_server_HardwarePropertiesManagerService(JNIEnv* env);
int register_android_server_SyntheticPasswordManager(JNIEnv* env);
int register_android_server_GraphicsStatsService(JNIEnv* env);
int register_android_hardware_display_DisplayViewport(JNIEnv* env);
int register_android_server_net_NetworkStatsService(JNIEnv* env);
@@ -98,7 +97,6 @@ extern "C" jint JNI_OnLoad(JavaVM* vm, void* /* reserved */)
    register_android_server_PersistentDataBlockService(env);
    register_android_server_HardwarePropertiesManagerService(env);
    register_android_server_storage_AppFuse(env);
    register_android_server_SyntheticPasswordManager(env);
    register_android_server_GraphicsStatsService(env);
    register_android_hardware_display_DisplayViewport(env);
    register_android_server_net_NetworkStatsService(env);