added prepare and tests

Author: BillCarsonFr

matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/keysbackup/KeysBackupTest.kt

@@ -33,6 +33,7 @@ import org.matrix.android.sdk.api.crypto.MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP
 import org.matrix.android.sdk.api.listeners.ProgressListener
 import org.matrix.android.sdk.api.listeners.StepProgressListener
 import org.matrix.android.sdk.api.session.crypto.crosssigning.DeviceTrustLevel
+import org.matrix.android.sdk.api.session.crypto.keysbackup.KeyBackupConfig
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupLastVersionResult
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupState
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupStateListener
@@ -46,9 +47,12 @@ import org.matrix.android.sdk.api.session.crypto.keysbackup.extractCurveKeyFromR
 import org.matrix.android.sdk.api.session.crypto.keysbackup.toKeysVersionResult
 import org.matrix.android.sdk.api.session.crypto.model.ImportRoomKeysResult
 import org.matrix.android.sdk.api.session.getRoom
+import org.matrix.android.sdk.common.CommonTestHelper
 import org.matrix.android.sdk.common.CommonTestHelper.Companion.runCryptoTest
 import org.matrix.android.sdk.common.CommonTestHelper.Companion.runSessionTest
+import org.matrix.android.sdk.common.CryptoTestHelper
 import org.matrix.android.sdk.common.RetryTestRule
+import org.matrix.android.sdk.common.SessionTestParams
 import org.matrix.android.sdk.common.TestConstants
 import org.matrix.android.sdk.common.TestMatrixCallback
 import org.matrix.android.sdk.internal.crypto.keysbackup.algorithm.KeysBackupAlgorithmFactory
@@ -61,10 +65,21 @@ import java.util.concurrent.CountDownLatch
 @RunWith(AndroidJUnit4::class)
 @FixMethodOrder(MethodSorters.JVM)
 @LargeTest
-class KeysBackupTest : InstrumentedTest {
+open class KeysBackupTest : InstrumentedTest {
 
     @get:Rule val rule = RetryTestRule(3)
 
+    @Test
+    fun default_config_should_be_assymetric_only() = runSessionTest(context()) { testHelper ->
+        val session = testHelper.createAccount(TestConstants.USER_ALICE, SessionTestParams(true))
+
+        val defaultConfig = session.cryptoService().keysBackupService().keyBackupConfig
+
+        assertEquals(MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP, defaultConfig.defaultAlgorithm)
+        assertEquals(1, defaultConfig.supportedAlgorithms.size)
+        assertTrue(defaultConfig.supportedAlgorithms.contains(MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP))
+    }
+
     /**
      * - From doE2ETestWithAliceAndBobInARoomWithEncryptedMessages, we should have no backed up keys
      * - Check backup keys after having marked one as backed up
@@ -206,7 +221,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun backupAfterCreateKeysBackupVersionTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
 
@@ -247,7 +262,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun backupAllGroupSessionsTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
 
@@ -292,7 +307,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testEncryptAndDecryptKeysBackupData() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
 
@@ -341,7 +356,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun restoreKeysBackupTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val testData = keysBackupTestHelper.createKeysBackupScenarioWithPassword(null)
 
@@ -427,7 +442,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun trustKeyBackupVersionTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Do an e2e backup to the homeserver with a recovery key
         // - And log Alice on a new device
@@ -487,7 +502,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun trustKeyBackupVersionWithRecoveryKeyTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Do an e2e backup to the homeserver with a recovery key
         // - And log Alice on a new device
@@ -545,7 +560,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun trustKeyBackupVersionWithWrongRecoveryKeyTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Do an e2e backup to the homeserver with a recovery key
         // - And log Alice on a new device
@@ -587,7 +602,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun trustKeyBackupVersionWithPasswordTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val password = "Password"
 
@@ -647,7 +662,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun trustKeyBackupVersionWithWrongPasswordTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val password = "Password"
         val badPassword = "Bad Password"
@@ -688,7 +703,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun restoreKeysBackupWithAWrongRecoveryKeyTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val testData = keysBackupTestHelper.createKeysBackupScenarioWithPassword(null)
 
@@ -721,7 +736,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testBackupWithPassword() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val password = "password"
 
@@ -777,7 +792,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun restoreKeysBackupWithAWrongPasswordTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val password = "password"
         val wrongPassword = "passw0rd"
@@ -813,7 +828,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testUseRecoveryKeyToRestoreAPasswordBasedKeysBackup() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val password = "password"
 
@@ -842,7 +857,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testUsePasswordToRestoreARecoveryKeyBasedKeysBackup() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         val testData = keysBackupTestHelper.createKeysBackupScenarioWithPassword(null)
 
@@ -873,7 +888,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testIsKeysBackupTrusted() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Create a backup version
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
@@ -918,7 +933,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testBackupWhenAnotherBackupWasCreated() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Create a backup version
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
@@ -990,7 +1005,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun testBackupAfterVerifyingADevice() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Create a backup version
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
@@ -1088,7 +1103,7 @@ class KeysBackupTest : InstrumentedTest {
      */
     @Test
     fun deleteKeysBackupTest() = runCryptoTest(context()) { cryptoTestHelper, testHelper ->
-        val keysBackupTestHelper = KeysBackupTestHelper(testHelper, cryptoTestHelper)
+        val keysBackupTestHelper = createKeysBackupTestHelper(testHelper, cryptoTestHelper)
 
         // - Create a backup version
         val cryptoTestData = cryptoTestHelper.doE2ETestWithAliceAndBobInARoomWithEncryptedMessages()
@@ -1111,4 +1126,9 @@ class KeysBackupTest : InstrumentedTest {
 
         stateObserver.stopAndCheckStates(null)
     }
+
+    open var keyBackupConfig: KeyBackupConfig? = null
+
+    private fun createKeysBackupTestHelper(testHelper: CommonTestHelper, cryptoTestHelper: CryptoTestHelper) =
+            KeysBackupTestHelper(testHelper, cryptoTestHelper, keyBackupConfig)
 }

matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/keysbackup/KeysBackupTestHelper.kt

@@ -19,6 +19,7 @@ package org.matrix.android.sdk.internal.crypto.keysbackup
 import org.junit.Assert
 import org.matrix.android.sdk.api.listeners.ProgressListener
 import org.matrix.android.sdk.api.session.Session
+import org.matrix.android.sdk.api.session.crypto.keysbackup.KeyBackupConfig
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupService
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupState
 import org.matrix.android.sdk.api.session.crypto.keysbackup.KeysBackupStateListener
@@ -33,7 +34,8 @@ import java.util.concurrent.CountDownLatch
 
 internal class KeysBackupTestHelper(
         private val testHelper: CommonTestHelper,
-        private val cryptoTestHelper: CryptoTestHelper
+        private val cryptoTestHelper: CryptoTestHelper,
+        private val keyBackupConfig: KeyBackupConfig? = null
 ) {
 
     fun waitForKeybackUpBatching() {
@@ -54,6 +56,9 @@ internal class KeysBackupTestHelper(
 
         val cryptoStore = (cryptoTestData.firstSession.cryptoService().keysBackupService() as DefaultKeysBackupService).store
         val keysBackup = cryptoTestData.firstSession.cryptoService().keysBackupService()
+        if (keyBackupConfig != null) {
+            keysBackup.keyBackupConfig = keyBackupConfig
+        }
 
         val stateObserver = StateObserver(keysBackup)
 
@@ -80,7 +85,10 @@ internal class KeysBackupTestHelper(
 
         // - Log Alice on a new device
         val aliceSession2 = testHelper.logIntoAccount(aliceUserId, KeysBackupTestConstants.defaultSessionParamsWithInitialSync)
-
+        if (keyBackupConfig != null) {
+            aliceSession2.cryptoService().keysBackupService().keyBackupConfig = keyBackupConfig
+        }
+        aliceSession2.cryptoService().keysBackupService().checkAndStartKeysBackup()
         // Test check: aliceSession2 has no keys at login
         Assert.assertEquals(0, aliceSession2.cryptoService().inboundGroupSessionsCount(false))
 
@@ -115,6 +123,7 @@ internal class KeysBackupTestHelper(
         val keysVersion = testHelper.doSync<KeysVersion> {
             keysBackup.createKeysBackupVersion(megolmBackupCreationInfo, it)
         }
+        keysBackup.saveBackupRecoveryKey(megolmBackupCreationInfo.recoveryKey, version = keysVersion.version)
 
         Assert.assertNotNull("Key backup version should not be null", keysVersion.version)
 

matrix-sdk-android/src/androidTest/java/org/matrix/android/sdk/internal/crypto/keysbackup/SymmetricKeysBackupTest.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * 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 org.matrix.android.sdk.internal.crypto.keysbackup
+
+import androidx.test.filters.LargeTest
+import org.junit.FixMethodOrder
+import org.junit.runners.MethodSorters
+import org.matrix.android.sdk.api.crypto.MXCRYPTO_ALGORITHM_AES_256_BACKUP
+import org.matrix.android.sdk.api.session.crypto.keysbackup.KeyBackupConfig
+
+@FixMethodOrder(MethodSorters.JVM)
+@LargeTest
+class SymmetricKeysBackupTest : KeysBackupTest() {
+
+    override var keyBackupConfig: KeyBackupConfig? = KeyBackupConfig(
+            defaultAlgorithm = MXCRYPTO_ALGORITHM_AES_256_BACKUP,
+            supportedAlgorithms = listOf(MXCRYPTO_ALGORITHM_AES_256_BACKUP)
+    )
+}

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/crypto/CryptoConstants.kt

@@ -33,6 +33,7 @@ const val MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP = "m.megolm_backup.v1.curve25519
 
 /**
  * Matrix algorithm value for AES-256 megolm keys backup.
+ * Symmetric megolm backup
  */
 const val MXCRYPTO_ALGORITHM_AES_256_BACKUP = "org.matrix.msc3270.v1.aes-hmac-sha2"
 

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/crypto/keysbackup/KeyBackupConfig.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2022 The Matrix.org Foundation C.I.C.
+ *
+ * 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 org.matrix.android.sdk.api.session.crypto.keysbackup
+
+import org.matrix.android.sdk.api.crypto.MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP
+
+data class KeyBackupConfig(
+        val defaultAlgorithm: String = MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP,
+        val supportedAlgorithms: List<String> = listOf(MXCRYPTO_ALGORITHM_CURVE_25519_BACKUP)
+) {
+    fun isAlgorithmSupported(alg: String) = supportedAlgorithms.contains(alg)
+}

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/crypto/keysbackup/KeysBackupService.kt

@@ -22,6 +22,13 @@ import org.matrix.android.sdk.api.listeners.StepProgressListener
 import org.matrix.android.sdk.api.session.crypto.model.ImportRoomKeysResult
 
 interface KeysBackupService {
+
+    /**
+     * Define the backup internal configuration, supported algorithm, default algorithm.
+     * @param keyBackupConfig the config
+     */
+    var keyBackupConfig: KeyBackupConfig
+
     /**
      * Retrieve the current version of the backup from the homeserver.
      *