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Decrypt, Modify and Reencrypt Seedvault Android Backups

License: Apache License 2.0

Python 88.03% Makefile 11.97%

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rudd-o jbenda whisprin nicodietrich crass andrei-a-papou t-m-w marunjar nettnikl froonix wuhdafak xdevs23

seedvault_backup_parser's Issues

A release does not exist

I'm a CalyxOS user and found this. It seems reasonable to add it to a packaging system, but there are no releases. If the current commit is stable a 0.1 release would signal that belief and be something to package. If the recommendation is that only people trying to debug/finish the package should try to run it, that's good to know too but it looks like decrypting and kv re-encryption are known to work on at least GNU/Linux.

InvalidKeyException thrown when attempting to restore from re-encrypted backup

I followed the instructions in the section Wifi Key Import and copied the same wifi config from the successful decryption. I used the same key to re-encrypt as I used to decrypt. Any ideas on what might be going on?

Here's the relevant logcat:

03-10 12:36:27.673  8573  8573 D AndroidRuntime: Calling main entry com.android.commands.bmgr.Bmgr
--------- beginning of system
03-10 12:36:27.675  8573  8573 V Bmgr    : Running restore for user:0
03-10 12:36:27.675  1454  6073 V BackupManagerService: [UserID:0] beginRestoreSession: pkg=null transport=null
03-10 12:36:27.677  1454  6073 V BackupManagerService: [UserID:0] Acquired wakelock:*backup*-0-3379
03-10 12:36:27.681  7839  7839 D ConfigurableBackupTransportService: Service created.
03-10 12:36:27.682  7839  7839 D ConfigurableBackupTransportService: Transport bound.
03-10 12:36:27.683  1454  1454 I TransportClient: ConfigurableBackupTransportService#316: Notifying [BH/MSG_RUN_GET_RESTORE_SETS] transport = IBackupTransport
03-10 12:36:28.734  7839  7968 E JavaBinder: *** Uncaught remote exception!  (Exceptions are not yet supported across processes.)
03-10 12:36:28.734  7839  7968 E JavaBinder: java.security.InvalidKeyException: Keystore operation failed
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.KeyStore.getInvalidKeyException(KeyStore.java:1378)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.KeyStore.getInvalidKeyException(KeyStore.java:1388)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.keystore.KeyStoreCryptoOperationUtils.getInvalidKeyExceptionForInit(KeyStoreCryptoOperationUtils.java:54)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.keystore.KeyStoreCryptoOperationUtils.getExceptionForCipherInit(KeyStoreCryptoOperationUtils.java:89)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.keystore.AndroidKeyStoreCipherSpiBase.ensureKeystoreOperationInitialized(AndroidKeyStoreCipherSpiBase.java:265)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.keystore.AndroidKeyStoreCipherSpiBase.engineInit(AndroidKeyStoreCipherSpiBase.java:148)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher.tryTransformWithProvider(Cipher.java:2980)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher.tryCombinations(Cipher.java:2891)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher$SpiAndProviderUpdater.updateAndGetSpiAndProvider(Cipher.java:2796)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher.chooseProvider(Cipher.java:773)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher.init(Cipher.java:1288)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at javax.crypto.Cipher.init(Cipher.java:1223)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.crypto.CipherFactoryImpl.createDecryptionCipher(CipherFactory.kt:29)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.crypto.CryptoImpl.decryptSegment(Crypto.kt:210)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.crypto.CryptoImpl.decryptMultipleSegments(Crypto.kt:191)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.metadata.MetadataReaderImpl.readMetadata(MetadataReader.kt:51)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.transport.restore.RestoreCoordinator.getAvailableRestoreSets(RestoreCoordinator.kt:73)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.transport.ConfigurableBackupTransport$getAvailableRestoreSets$1.invokeSuspend(ConfigurableBackupTransport.kt:200)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:241)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:270)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:79)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:54)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source:1)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:36)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source:1)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.stevesoltys.seedvault.transport.ConfigurableBackupTransport.getAvailableRestoreSets(ConfigurableBackupTransport.kt:199)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.app.backup.BackupTransport$TransportImpl.getAvailableRestoreSets(BackupTransport.java:719)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at com.android.internal.backup.IBackupTransport$Stub.onTransact(IBackupTransport.java:657)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.os.Binder.execTransactInternal(Binder.java:1159)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.os.Binder.execTransact(Binder.java:1123)
03-10 12:36:28.734  7839  7968 E JavaBinder: Caused by: android.security.KeyStoreException: Device locked
03-10 12:36:28.734  7839  7968 E JavaBinder: 	at android.security.KeyStore.getKeyStoreException(KeyStore.java:1301)
03-10 12:36:28.734  7839  7968 E JavaBinder: 	... 30 more
03-10 12:36:28.739  1454  6073 D RestoreSession: endRestoreSession
03-10 12:36:28.741  8573  8573 D AndroidRuntime: Shutting down VM
03-10 12:36:28.747  7839  7839 D ConfigurableBackupTransportService: Service destroyed.
03-10 12:36:28.753  1454  3379 V BackupManagerService: [UserID:0] Released wakelock:*backup*-0-3379
03-10 12:36:28.753  1454  3379 V BackupManagerService: [UserID:0] Clearing restore session and halting timeout

Support alternative Cryptodome import

Version: cda9f67
Platform: Debian buster

Changing line 10 to say Cryptodome was enough to fix AttributeError: module 'Crypto.Cipher.AES' has no attribute 'MODE_GCM'. Please consider adding some form of check for supported modes and switching implementation depending on availability.

add support new backup format

with the update to android 12, seedvault has also bumped the metadata version.

it would be great to be able to use this tool with newer backups.

AssertionError when decrypting

I'm trying to decrypt a SeedVault backup on Ubuntu running in WSL. Here's my command:

laura@lauralaptop:~/android/seedvault_backup_parser$ ./parse.py decrypt /mnt/c/Users/laura/Dropbox/Backup/Fairphone/.See
dVaultAndroidBackup/1614124366878 tempdecrypted

It finds the list of APKs, then gives this error:

Decrypting Key-Value files:
  for app c/Users/laura/Dropbox/Backup/Fairphone/.SeedVaultAndroidBackup/1614124366878/kv/@pm@
Traceback (most recent call last):
  File "./parse.py", line 376, in <module>
    main()
  File "./parse.py", line 365, in main
    kv_parsed = parse_backup(backupfolder, targetfolder, userkey)
  File "./parse.py", line 156, in parse_backup
    kv_parsed = parse_kv_backup(backupfolder, targetfolder, key)
  File "./parse.py", line 64, in parse_kv_backup
    assert versionheader['name'].decode() == appname
AssertionError

Any help would be appreciated!

AssertionError when decrypting

I'm trying to decrypt a SeedVault backup on Windows 10/x64 . Here's my command:

parse.py decrypt 1615637348786 decrypted

keep getting AssertionError:

Decrypting Key-Value files:
for app kv@pm@
Traceback (most recent call last):
File "F:\Programms\python\parse.py", line 389, in
main()
File "F:\Programms\python\parse.py", line 378, in main
kv_parsed = parse_backup(backupfolder, targetfolder, userkey)
File "F:\Programms\python\parse.py", line 169, in parse_backup
kv_parsed = parse_kv_backup(backupfolder, targetfolder, key)
File "F:\Programms\python\parse.py", line 77, in parse_kv_backup
assert versionheader['name'].decode() == appname
AssertionError

i could´t resolve my issue from #7 as i don´t specified absolute paths.
What else could i do?

No restore performed - WiFi keys

Hello. I tried the method for decrypting, extracting and re-encrypting the WiFi keys from a backup (since Seedvault itself does not restore them by default for some reason). I followed every step carefully, but when I ran the last adb command to restore them in the settings I got the following output:
No available restore sets; no restore performed
done

And as you can tell the keys were not imported in the settings.
Please let me know if there is something I did wrong or if this is not related to your program.

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