Home/ Questions/Q 6615189
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T20:25:54+00:00

When I encrypt a file I want to overwrite its contents, not only delete

  • 0

When I encrypt a file I want to overwrite its contents, not only delete it. My intended purpose for this is to securely erase the file. Is there a way to do this in iOS?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Open the file memory mapped and overwrite the data, then delete the file using NSFileManager:

    NSFileHandle *file = [NSFileHandle fileHandleForUpdatingAtPath: filename];
[file writeData: data];
[file closeFile];

    Where data is an NSData object

    • 0