Encrypting a stored image
<p>I am preparing a project that needs to store images in an encrypted format.  The images will be between 0.5mb and 5mb and the original quality must be maintained.</p>

<p>I was thinking of using base64 to encode them but then I will need to use something to encrypt them (SHA1?) and save them as a file on the server.</p>

<p>Can anyone advise me on this?  Which kind of file could I stored the encrypted images in?</p>

<p>Thanks in advance</p>
