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[remoteauth] Implement RangingSession

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* Add basic functionalities to RangingSession and related data/util classes.

Test: atest RemoteAuthUnitTests
Bug: 292549287
Change-Id: Iff6a3cb1aefc20ef69e65e5e2705e8a707874668
This commit is contained in:
Jin Chen
2023-08-07 19:27:10 -07:00
parent be08f54a25
commit ff375e5588
7 changed files with 616 additions and 4 deletions
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2
remoteauth/service/java/com/android/server/remoteauth/README.md
View File

@@ -6,3 +6,5 @@ Provides the connectivity manager to manage connections with the peer device.
## Ranging
Provides the ranging manager to perform ranging with the peer devices.
## Util
Common utilities.

152
remoteauth/service/java/com/android/server/remoteauth/ranging/RangingSession.java
View File

@@ -16,9 +16,16 @@
package com.android.server.remoteauth.ranging;
import android.annotation.NonNull;
import android.content.Context;
import android.util.Log;
import androidx.annotation.IntDef;
import com.android.internal.util.Preconditions;
import com.android.server.remoteauth.util.Crypto;
import com.google.common.hash.Hashing;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.concurrent.Executor;
@@ -35,18 +42,50 @@ import java.util.concurrent.Executor;
* <p>Ranging method specific implementation shall be implemented in the extended class.
*/
public abstract class RangingSession {
private static final String TAG = "RangingSession";
/** Types of ranging error. */
@Retention(RetentionPolicy.SOURCE)
@IntDef(
value = {
RANGING_ERROR_UNKNOWN,
RANGING_ERROR_INVALID_PARAMETERS,
RANGING_ERROR_STOPPED_BY_REQUEST,
RANGING_ERROR_STOPPED_BY_PEER,
RANGING_ERROR_FAILED_TO_START,
RANGING_ERROR_FAILED_TO_STOP,
RANGING_ERROR_SYSTEM_ERROR,
RANGING_ERROR_SYSTEM_TIMEOUT,
})
public @interface RangingError {}
/** Unknown ranging error type. */
public static final int RANGING_ERROR_UNKNOWN = 0x0;
/** Ranging error due to invalid parameters. */
public static final int RANGING_ERROR_INVALID_PARAMETERS = 0x1;
/** Ranging error due to stopped by calling {@link #stop}. */
public static final int RANGING_ERROR_STOPPED_BY_REQUEST = 0x2;
/** Ranging error due to stopped by the peer device. */
public static final int RANGING_ERROR_STOPPED_BY_PEER = 0x3;
/** Ranging error due to failure to start ranging. */
public static final int RANGING_ERROR_FAILED_TO_START = 0x4;
/** Ranging error due to failure to stop ranging. */
public static final int RANGING_ERROR_FAILED_TO_STOP = 0x5;
/**
* Ranging error due to system error cause by changes such as privacy policy, power management
* policy, permissions, and more.
*/
public static final int RANGING_ERROR_SYSTEM_ERROR = 0x6;
/** Ranging error due to system timeout in retry attempts. */
public static final int RANGING_ERROR_SYSTEM_TIMEOUT = 0x7;
/** Interface for ranging update callbacks. */
public interface RangingCallback {
/**
@@ -55,7 +94,8 @@ public abstract class RangingSession {
* @param sessionInfo info about this ranging session.
* @param rangingReport new ranging report
*/
void onRangingReport(SessionInfo sessionInfo, RangingReport rangingReport);
void onRangingReport(
@NonNull SessionInfo sessionInfo, @NonNull RangingReport rangingReport);
/**
* Call upon any ranging error events.
@@ -63,7 +103,49 @@ public abstract class RangingSession {
* @param sessionInfo info about this ranging session.
* @param rangingError error type
*/
void onError(SessionInfo sessionInfo, @RangingError int rangingError);
void onError(@NonNull SessionInfo sessionInfo, @RangingError int rangingError);
}
protected Context mContext;
protected SessionInfo mSessionInfo;
protected float mLowerProximityBoundaryM;
protected float mUpperProximityBoundaryM;
protected boolean mAutoDeriveParams;
protected byte[] mBaseKey;
protected byte[] mSyncData;
protected int mSyncCounter;
protected byte[] mDerivedData;
protected int mDerivedDataLength;
protected RangingSession(
@NonNull Context context,
@NonNull SessionParameters sessionParameters,
int derivedDataLength) {
Preconditions.checkNotNull(context);
Preconditions.checkNotNull(sessionParameters);
mContext = context;
mSessionInfo =
new SessionInfo.Builder()
.setDeviceId(sessionParameters.getDeviceId())
.setRangingMethod(sessionParameters.getRangingMethod())
.build();
mLowerProximityBoundaryM = sessionParameters.getLowerProximityBoundaryM();
mUpperProximityBoundaryM = sessionParameters.getUpperProximityBoundaryM();
mAutoDeriveParams = sessionParameters.getAutoDeriveParams();
Log.i(
TAG,
"Creating a new RangingSession {info = "
+ mSessionInfo
+ ", autoDeriveParams = "
+ mAutoDeriveParams
+ "}");
if (mAutoDeriveParams) {
Preconditions.checkArgument(
derivedDataLength > 0, "derivedDataLength must be greater than 0");
mDerivedDataLength = derivedDataLength;
resetBaseKey(sessionParameters.getBaseKey());
resetSyncData(sessionParameters.getSyncData());
}
}
/**
@@ -75,6 +157,8 @@ public abstract class RangingSession {
* @param rangingParameters parameters to start the ranging.
* @param executor Executor to run the rangingCallback.
* @param rangingCallback callback to notify of ranging events.
* @throws NullPointerException if params are null.
* @throws IllegalArgumentException if rangingParameters is invalid.
*/
public abstract void start(
@NonNull RangingParameters rangingParameters,
@@ -94,8 +178,22 @@ public abstract class RangingSession {
* the secure connection between the devices is lost.
*
* @param baseKey new baseKey must be 16 or 32 bytes.
* @throws NullPointerException if baseKey is null.
* @throws IllegalArgumentException if baseKey has invalid length.
*/
public void resetBaseKey(byte[] baseKey) {}
public void resetBaseKey(@NonNull byte[] baseKey) {
if (!mAutoDeriveParams) {
Log.w(TAG, "autoDeriveParams is disabled, new baseKey is ignored.");
return;
}
Preconditions.checkNotNull(baseKey);
if (baseKey.length != 16 && baseKey.length != 32) {
throw new IllegalArgumentException("Invalid baseKey length: " + baseKey.length);
}
mBaseKey = baseKey;
updateDerivedData();
Log.i(TAG, "resetBaseKey");
}
/**
* Resets the synchronization by giving a new syncData used for ranging parameters derivation.
@@ -105,6 +203,52 @@ public abstract class RangingSession {
* manner.
*
* @param syncData new syncData must be 16 bytes.
* @throws NullPointerException if baseKey is null.
* @throws IllegalArgumentException if syncData has invalid length.
*/
public void resetSyncData(byte[] syncData) {}
public void resetSyncData(@NonNull byte[] syncData) {
if (!mAutoDeriveParams) {
Log.w(TAG, "autoDeriveParams is disabled, new syncData is ignored.");
return;
}
Preconditions.checkNotNull(syncData);
if (syncData.length != 16) {
throw new IllegalArgumentException("Invalid syncData length: " + syncData.length);
}
mSyncData = syncData;
mSyncCounter = 0;
updateDerivedData();
Log.i(TAG, "resetSyncData");
}
/** Update mDerivedData */
protected boolean updateDerivedData() {
if (!mAutoDeriveParams) {
Log.w(TAG, "autoDeriveParams is disabled, updateDerivedData is skipped.");
return false;
}
if (mBaseKey == null
|| mBaseKey.length == 0
|| mSyncData == null
|| mSyncData.length == 0) {
Log.w(TAG, "updateDerivedData: Missing baseKey/syncData");
return false;
}
byte[] hashedSyncData =
Hashing.sha256()
.newHasher()
.putBytes(mSyncData)
.putInt(mSyncCounter)
.hash()
.asBytes();
byte[] newDerivedData = Crypto.computeHkdf(mBaseKey, hashedSyncData, mDerivedDataLength);
if (newDerivedData == null) {
Log.w(TAG, "updateDerivedData: computeHkdf failed");
return false;
}
mDerivedData = newDerivedData;
mSyncCounter++;
Log.i(TAG, "updateDerivedData");
return true;
}
}

41
remoteauth/service/java/com/android/server/remoteauth/ranging/SessionParameters.java
View File

@@ -19,9 +19,14 @@ import static com.android.server.remoteauth.ranging.RangingCapabilities.RANGING_
import android.annotation.NonNull;
import androidx.annotation.IntDef;
import com.android.internal.util.Preconditions;
import com.android.server.remoteauth.ranging.RangingCapabilities.RangingMethod;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* The set of parameters to create a ranging session.
*
@@ -31,9 +36,29 @@ import com.android.server.remoteauth.ranging.RangingCapabilities.RangingMethod;
*/
public class SessionParameters {
/** Ranging device role. */
@Retention(RetentionPolicy.SOURCE)
@IntDef(
value = {
DEVICE_ROLE_UNKNOWN,
DEVICE_ROLE_INITIATOR,
DEVICE_ROLE_RESPONDER,
})
public @interface DeviceRole {}
/** Unknown device role. */
public static final int DEVICE_ROLE_UNKNOWN = 0x0;
/** Device that initiates the ranging. */
public static final int DEVICE_ROLE_INITIATOR = 0x1;
/** Device that responds to ranging. */
public static final int DEVICE_ROLE_RESPONDER = 0x2;
/* Required parameters */
private final String mDeviceId;
@RangingMethod private final int mRangingMethod;
@DeviceRole private final int mDeviceRole;
/* Optional parameters */
private final float mLowerProximityBoundaryM;
@@ -51,6 +76,11 @@ public class SessionParameters {
return mRangingMethod;
}
@DeviceRole
public int getDeviceRole() {
return mDeviceRole;
}
public float getLowerProximityBoundaryM() {
return mLowerProximityBoundaryM;
}
@@ -74,6 +104,7 @@ public class SessionParameters {
private SessionParameters(
String deviceId,
@RangingMethod int rangingMethod,
@DeviceRole int deviceRole,
float lowerProximityBoundaryM,
float upperProximityBoundaryM,
boolean autoDeriveParams,
@@ -81,6 +112,7 @@ public class SessionParameters {
byte[] syncData) {
mDeviceId = deviceId;
mRangingMethod = rangingMethod;
mDeviceRole = deviceRole;
mLowerProximityBoundaryM = lowerProximityBoundaryM;
mUpperProximityBoundaryM = upperProximityBoundaryM;
mAutoDeriveParams = autoDeriveParams;
@@ -92,6 +124,7 @@ public class SessionParameters {
public static final class Builder {
private String mDeviceId = new String("");
@RangingMethod private int mRangingMethod = RANGING_METHOD_UNKNOWN;
@DeviceRole private int mDeviceRole = DEVICE_ROLE_UNKNOWN;
private float mLowerProximityBoundaryM;
private float mUpperProximityBoundaryM;
private boolean mAutoDeriveParams = false;
@@ -120,6 +153,12 @@ public class SessionParameters {
return this;
}
/** Sets the {@link DeviceRole} to be used for the {@link RangingSession}. */
public Builder setDeviceRole(@DeviceRole int deviceRole) {
mDeviceRole = deviceRole;
return this;
}
/**
* Sets the lower proximity boundary in meters, must be greater than or equals to zero.
*
@@ -191,6 +230,7 @@ public class SessionParameters {
Preconditions.checkArgument(!mDeviceId.isEmpty(), "deviceId must not be empty.");
Preconditions.checkArgument(
mRangingMethod != RANGING_METHOD_UNKNOWN, "Unknown rangingMethod");
Preconditions.checkArgument(mDeviceRole != DEVICE_ROLE_UNKNOWN, "Unknown deviceRole");
Preconditions.checkArgument(
mLowerProximityBoundaryM >= 0,
"Negative lowerProximityBoundaryM: " + mLowerProximityBoundaryM);
@@ -212,6 +252,7 @@ public class SessionParameters {
return new SessionParameters(
mDeviceId,
mRangingMethod,
mDeviceRole,
mLowerProximityBoundaryM,
mUpperProximityBoundaryM,
mAutoDeriveParams,

106
remoteauth/service/java/com/android/server/remoteauth/util/Crypto.java Normal file
View File

@@ -0,0 +1,106 @@
/*
* Copyright (C) 2023 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 com.android.server.remoteauth.util;
import android.util.Log;
import androidx.annotation.Nullable;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
/** Utility class of cryptographic functions. */
public final class Crypto {
private static final String TAG = "Crypto";
private static final String HMAC_SHA256_ALGORITHM = "HmacSHA256";
/**
* A HAMC sha256 based HKDF algorithm to pseudo randomly hash data and salt into a byte array of
* given size.
*
* @param ikm the input keying material.
* @param salt A possibly non-secret random value.
* @param size The length of the generated pseudorandom string in bytes. The maximal size is
* 255.DigestSize, where DigestSize is the size of the underlying HMAC.
* @return size pseudorandom bytes, null if failed.
*/
// Based on
// google3/third_party/tink/java_src/src/main/java/com/google/crypto/tink/subtle/Hkdf.java
@Nullable
public static byte[] computeHkdf(byte[] ikm, byte[] salt, int size) {
Mac mac;
try {
mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
} catch (NoSuchAlgorithmException e) {
Log.w(TAG, "HMAC_SHA256_ALGORITHM is not supported.", e);
return null;
}
if (size > 255 * mac.getMacLength()) {
Log.w(TAG, "Size too large. " + size + " > " + 255 * mac.getMacLength());
return null;
}
if (ikm == null || ikm.length == 0) {
Log.w(TAG, "Ikm cannot be empty.");
return null;
}
if (salt == null || salt.length == 0) {
Log.w(TAG, "Salt cannot be empty.");
return null;
}
try {
mac.init(new SecretKeySpec(salt, HMAC_SHA256_ALGORITHM));
} catch (InvalidKeyException e) {
Log.w(TAG, "Invalid key.", e);
return null;
}
byte[] prk = mac.doFinal(ikm);
byte[] result = new byte[size];
try {
mac.init(new SecretKeySpec(prk, HMAC_SHA256_ALGORITHM));
} catch (InvalidKeyException e) {
Log.w(TAG, "Invalid key.", e);
return null;
}
byte[] digest = new byte[0];
int ctr = 1;
int pos = 0;
while (true) {
mac.update(digest);
mac.update((byte) ctr);
digest = mac.doFinal();
if (pos + digest.length < size) {
System.arraycopy(digest, 0, result, pos, digest.length);
pos += digest.length;
ctr++;
} else {
System.arraycopy(digest, 0, result, pos, size - pos);
break;
}
}
return result;
}
}

237
remoteauth/tests/unit/src/com/android/server/remoteauth/ranging/RangingSessionTest.java Normal file
View File

@@ -0,0 +1,237 @@
/*
* Copyright (C) 2023 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 com.android.server.remoteauth.ranging;
import static com.android.server.remoteauth.ranging.RangingCapabilities.RANGING_METHOD_UWB;
import static com.android.server.remoteauth.ranging.SessionParameters.DEVICE_ROLE_INITIATOR;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThrows;
import static org.junit.Assert.assertTrue;
import android.content.Context;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import com.android.server.remoteauth.ranging.RangingCapabilities.RangingMethod;
import com.android.server.remoteauth.ranging.SessionParameters.DeviceRole;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.util.concurrent.Executor;
/** Unit test for {@link RangingSession}. */
@RunWith(AndroidJUnit4.class)
public class RangingSessionTest {
private static final String TEST_DEVICE_ID = "test_device_id";
@RangingMethod private static final int TEST_RANGING_METHOD = RANGING_METHOD_UWB;
@DeviceRole private static final int TEST_DEVICE_ROLE = DEVICE_ROLE_INITIATOR;
private static final float TEST_LOWER_PROXIMITY_BOUNDARY_M = 1.0f;
private static final float TEST_UPPER_PROXIMITY_BOUNDARY_M = 2.5f;
private static final byte[] TEST_BASE_KEY =
new byte[] {
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
0x0e, 0x0f
};
private static final byte[] TEST_BASE_KEY2 =
new byte[] {
0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x0,
0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
};
private static final byte[] TEST_SYNC_DATA =
new byte[] {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
0x0f, 0x00
};
private static final byte[] TEST_SYNC_DATA2 =
new byte[] {
0x00, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
0x0f, 0x00
};
private static final SessionParameters TEST_SESSION_PARAMETER_WITH_AD =
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(true)
.setBaseKey(TEST_BASE_KEY)
.setSyncData(TEST_SYNC_DATA)
.build();
private static final SessionParameters TEST_SESSION_PARAMETER_WO_AD =
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(false)
.setBaseKey(TEST_BASE_KEY)
.setSyncData(TEST_SYNC_DATA)
.build();
private static final int TEST_DERIVE_DATA_LENGTH = 40;
/** Wrapper class for testing {@link RangingSession}. */
public static class RangingSessionWrapper extends RangingSession {
public RangingSessionWrapper(
Context context, SessionParameters sessionParameters, int derivedDataLength) {
super(context, sessionParameters, derivedDataLength);
}
@Override
public void start(
RangingParameters rangingParameters,
Executor executor,
RangingCallback rangingCallback) {}
@Override
public void stop() {}
@Override
public boolean updateDerivedData() {
return super.updateDerivedData();
}
public byte[] baseKey() {
return mBaseKey;
}
public byte[] syncData() {
return mSyncData;
}
public byte[] derivedData() {
return mDerivedData;
}
public int syncCounter() {
return mSyncCounter;
}
}
@Mock private Context mContext;
private RangingSessionWrapper mRangingSessionWithAD;
private RangingSessionWrapper mRangingSessionWithoutAD;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
mRangingSessionWithAD =
new RangingSessionWrapper(
mContext, TEST_SESSION_PARAMETER_WITH_AD, TEST_DERIVE_DATA_LENGTH);
mRangingSessionWithoutAD =
new RangingSessionWrapper(mContext, TEST_SESSION_PARAMETER_WO_AD, 0);
}
@Test
public void testResetBaseKey_autoDeriveDisabled() {
assertNull(mRangingSessionWithoutAD.baseKey());
mRangingSessionWithoutAD.resetBaseKey(TEST_BASE_KEY2);
assertNull(mRangingSessionWithoutAD.baseKey());
}
@Test
public void testResetBaseKey_nullBaseKey() {
assertThrows(NullPointerException.class, () -> mRangingSessionWithAD.resetBaseKey(null));
}
@Test
public void testResetBaseKey_invalidBaseKey() {
assertThrows(
IllegalArgumentException.class,
() -> mRangingSessionWithAD.resetBaseKey(new byte[] {0x1, 0x2, 0x3, 0x4}));
}
@Test
public void testResetBaseKey_success() {
mRangingSessionWithAD.resetBaseKey(TEST_BASE_KEY2);
assertArrayEquals(mRangingSessionWithAD.baseKey(), TEST_BASE_KEY2);
assertEquals(mRangingSessionWithAD.syncCounter(), 2);
mRangingSessionWithAD.resetBaseKey(TEST_BASE_KEY);
assertArrayEquals(mRangingSessionWithAD.baseKey(), TEST_BASE_KEY);
assertEquals(mRangingSessionWithAD.syncCounter(), 3);
}
@Test
public void testResetSyncData_autoDeriveDisabled() {
assertNull(mRangingSessionWithoutAD.syncData());
mRangingSessionWithoutAD.resetSyncData(TEST_SYNC_DATA2);
assertNull(mRangingSessionWithoutAD.syncData());
}
@Test
public void testResetSyncData_nullSyncData() {
assertThrows(NullPointerException.class, () -> mRangingSessionWithAD.resetSyncData(null));
}
@Test
public void testResetSyncData_invalidSyncData() {
assertThrows(
IllegalArgumentException.class,
() -> mRangingSessionWithAD.resetSyncData(new byte[] {0x1, 0x2, 0x3, 0x4}));
}
@Test
public void testResetSyncData_success() {
mRangingSessionWithAD.resetSyncData(TEST_SYNC_DATA2);
assertArrayEquals(mRangingSessionWithAD.syncData(), TEST_SYNC_DATA2);
assertEquals(mRangingSessionWithAD.syncCounter(), 1);
mRangingSessionWithAD.resetSyncData(TEST_SYNC_DATA);
assertArrayEquals(mRangingSessionWithAD.syncData(), TEST_SYNC_DATA);
assertEquals(mRangingSessionWithAD.syncCounter(), 1);
}
@Test
public void testUpdateDerivedData_autoDeriveDisabled() {
assertFalse(mRangingSessionWithoutAD.updateDerivedData());
assertEquals(mRangingSessionWithoutAD.syncCounter(), 0);
}
@Test
public void testUpdateDerivedData_hkdfFailed() {
// Max derivedDataLength is 32*255
RangingSessionWrapper rangingSession =
new RangingSessionWrapper(
mContext, TEST_SESSION_PARAMETER_WITH_AD, /* derivedDataLength= */ 10000);
assertNull(rangingSession.derivedData());
assertFalse(rangingSession.updateDerivedData());
assertEquals(rangingSession.syncCounter(), 0);
assertNull(rangingSession.derivedData());
}
@Test
public void testUpdateDerivedData_success() {
assertNotNull(mRangingSessionWithAD.derivedData());
assertTrue(mRangingSessionWithAD.updateDerivedData());
assertEquals(mRangingSessionWithAD.syncCounter(), 2);
assertNotNull(mRangingSessionWithAD.derivedData());
}
}

27
remoteauth/tests/unit/src/com/android/server/remoteauth/ranging/SessionParametersTest.java
View File

@@ -17,6 +17,7 @@
package com.android.server.remoteauth.ranging;
import static com.android.server.remoteauth.ranging.RangingCapabilities.RANGING_METHOD_UWB;
import static com.android.server.remoteauth.ranging.SessionParameters.DEVICE_ROLE_INITIATOR;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
@@ -25,6 +26,7 @@ import static org.junit.Assert.assertThrows;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import com.android.server.remoteauth.ranging.RangingCapabilities.RangingMethod;
import com.android.server.remoteauth.ranging.SessionParameters.DeviceRole;
import org.junit.Test;
import org.junit.runner.RunWith;
@@ -35,6 +37,7 @@ public class SessionParametersTest {
private static final String TEST_DEVICE_ID = "test_device_id";
@RangingMethod private static final int TEST_RANGING_METHOD = RANGING_METHOD_UWB;
@DeviceRole private static final int TEST_DEVICE_ROLE = DEVICE_ROLE_INITIATOR;
private static final float TEST_LOWER_PROXIMITY_BOUNDARY_M = 1.0f;
private static final float TEST_UPPER_PROXIMITY_BOUNDARY_M = 2.5f;
private static final boolean TEST_AUTO_DERIVE_PARAMS = true;
@@ -55,6 +58,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(TEST_AUTO_DERIVE_PARAMS)
@@ -82,6 +86,7 @@ public class SessionParametersTest {
final SessionParameters.Builder builder =
new SessionParameters.Builder()
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setBaseKey(TEST_BASE_KEY)
@@ -95,6 +100,21 @@ public class SessionParametersTest {
final SessionParameters.Builder builder =
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setBaseKey(TEST_BASE_KEY)
.setSyncData(TEST_SYNC_DATA);
assertThrows(IllegalArgumentException.class, () -> builder.build());
}
@Test
public void testBuildingSessionParameters_invalidDeviceRole() {
final SessionParameters.Builder builder =
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setBaseKey(TEST_BASE_KEY)
@@ -109,6 +129,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(-1.0f)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setBaseKey(TEST_BASE_KEY)
@@ -123,6 +144,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M - 0.1f)
.setBaseKey(TEST_BASE_KEY)
@@ -138,6 +160,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(autoDeriveParams)
@@ -154,6 +177,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(TEST_AUTO_DERIVE_PARAMS)
@@ -168,6 +192,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(TEST_AUTO_DERIVE_PARAMS)
@@ -183,6 +208,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(TEST_AUTO_DERIVE_PARAMS)
@@ -197,6 +223,7 @@ public class SessionParametersTest {
new SessionParameters.Builder()
.setDeviceId(TEST_DEVICE_ID)
.setRangingMethod(TEST_RANGING_METHOD)
.setDeviceRole(TEST_DEVICE_ROLE)
.setLowerProximityBoundaryM(TEST_LOWER_PROXIMITY_BOUNDARY_M)
.setUpperProximityBoundaryM(TEST_UPPER_PROXIMITY_BOUNDARY_M)
.setAutoDeriveParams(TEST_AUTO_DERIVE_PARAMS)

55
remoteauth/tests/unit/src/com/android/server/remoteauth/util/CryptoTest.java Normal file
View File

@@ -0,0 +1,55 @@
/*
* Copyright (C) 2023 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 com.android.server.remoteauth.util;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
/** Unit test for {@link Crypto}. */
@RunWith(AndroidJUnit4.class)
public class CryptoTest {
private static final byte[] TEST_IKM =
new byte[] {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
private static final byte[] TEST_SALT =
new byte[] {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x00};
private static final int TEST_SIZE = 40;
@Test
public void testComputeHkdf_exceedMaxSize() {
// Max size is 32*255
assertNull(Crypto.computeHkdf(TEST_IKM, TEST_SALT, /* size= */ 10000));
}
@Test
public void testComputeHkdf_emptySalt() {
assertNull(Crypto.computeHkdf(TEST_IKM, new byte[] {}, TEST_SIZE));
}
@Test
public void testComputeHkdf_emptyIkm() {
assertNull(Crypto.computeHkdf(new byte[] {}, TEST_SALT, TEST_SIZE));
}
@Test
public void testComputeHkdf_success() {
assertNotNull(Crypto.computeHkdf(TEST_IKM, TEST_SALT, TEST_SIZE));
}
}