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Fix backup thumbnail encryption when downloading

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This commit is contained in:
trevor-signal
2025-08-08 14:06:54 -04:00
committed by GitHub
parent 906822131d
commit bc62e05532
1 changed files with 2 additions and 1 deletions
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3
ts/textsecure/downloadAttachment.ts
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@@ -38,6 +38,7 @@ import {
getBackupMediaRootKey,
deriveBackupMediaKeyMaterial,
type BackupMediaKeyMaterialType,
deriveBackupThumbnailTransitKeyMaterial,
} from '../services/backups/crypto';
import { backupsService } from '../services/backups';
import {
@@ -72,7 +73,7 @@ function getBackupThumbnailInnerEncryptionKeyMaterial(
): BackupMediaKeyMaterialType {
const mediaId = getMediaIdForAttachmentThumbnail(attachment);
const backupKey = getBackupMediaRootKey();
return deriveBackupMediaKeyMaterial(backupKey, mediaId.bytes);
return deriveBackupThumbnailTransitKeyMaterial(backupKey, mediaId.bytes);
}
function getBackupThumbnailOuterEncryptionKeyMaterial(
attachment: BackupableAttachmentType