Randomize identity database name

DB/Sources/DB/Identity/IdentityDatabase.swift

@@ -19,7 +19,9 @@ public struct IdentityDatabase {
             databaseWriter = DatabaseQueue()
             try Self.migrator.migrate(databaseWriter)
         } else {
-            let url = try FileManager.default.databaseDirectoryURL(name: Self.name, appGroup: appGroup)
+            let url = try FileManager.default.databaseDirectoryURL(
+                name: Secrets.identityDatabaseName(keychain: keychain),
+                appGroup: appGroup)
 
             databaseWriter = try DatabasePool.withFileCoordinator(url: url, migrator: Self.migrator) {
                 try Secrets.databaseKey(identityId: nil, keychain: keychain)
@@ -224,8 +226,6 @@ public extension IdentityDatabase {
 }
 
 private extension IdentityDatabase {
-    static let name = "identity"
-
     static func writePreferences(_ preferences: Identity.Preferences, id: Identity.Id) -> (Database) throws -> Void {
         {
             let data = try IdentityRecord.databaseJSONEncoder(

Secrets/Sources/Secrets/Secrets.swift

@@ -32,6 +32,7 @@ public extension Secrets {
         case pushKey
         case pushAuth
         case databaseKey
+        case identityDatabaseName
     }
 }
 
@@ -55,6 +56,18 @@ extension Secrets.Item {
 }
 
 public extension Secrets {
+    static func identityDatabaseName(keychain: Keychain.Type) throws -> String {
+        do {
+            return try unscopedItem(.identityDatabaseName, keychain: keychain)
+        } catch SecretsError.itemAbsent {
+            let identityDatabaseName = UUID().uuidString
+
+            try setUnscoped(identityDatabaseName, forItem: .identityDatabaseName, keychain: keychain)
+
+            return identityDatabaseName
+        }
+    }
+
     // https://www.zetetic.net/sqlcipher/sqlcipher-api/#key
     static func databaseKey(identityId: UUID?, keychain: Keychain.Type) throws -> String {
         let passphraseData: Data