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Use CF for file key derivation

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This commit is contained in:
Neeraj Gupta
2025-06-24 12:19:55 +05:30
parent 2b3427e40b
commit 541494613f
1 changed files with 11 additions and 7 deletions
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18
mobile/lib/utils/file_key.dart
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@@ -6,21 +6,25 @@ import "package:photos/models/file/file.dart";
import "package:photos/services/collections_service.dart";
Uint8List getFileKey(EnteFile file) {
final encryptedKey = CryptoUtil.base642bin(file.encryptedKey!);
final nonce = CryptoUtil.base642bin(file.keyDecryptionNonce!);
final cf = file.cf!;
final collectionKey =
CollectionsService.instance.getCollectionKey(file.collectionID!);
return CryptoUtil.decryptSync(encryptedKey, collectionKey, nonce);
CollectionsService.instance.getCollectionKey(cf.collectionID);
return CryptoUtil.decryptSync(
cf.encFileKey,
collectionKey,
cf.encFileKeyNonce,
);
}
Future<Uint8List> getFileKeyUsingBgWorker(EnteFile file) async {
final cf = file.cf!;
final collectionKey =
CollectionsService.instance.getCollectionKey(file.collectionID!);
CollectionsService.instance.getCollectionKey(cf.collectionID);
return await Computer.shared().compute(
_decryptFileKey,
param: <String, dynamic>{
"encryptedKey": file.encryptedKey,
"keyDecryptionNonce": file.keyDecryptionNonce,
"encryptedKey": cf.encFileKey,
"keyDecryptionNonce": cf.encFileKeyNonce,
"collectionKey": collectionKey,
},
);