Security question

[Ruslan Zasukhin]

on 1/22/04 4:05 PM, Florian Bogeschdorfer at fb at memedia.de wrote:

Hi Florian,

> You once told me that if I delete a record, it will still be there
> physically, just somehow flagged and not appear anymore. Now with a hex
> editor I could still recover the data.
> 
> Now I wonder what would happen if I overwrite the record with empty values
> or "XXX" stuff before I delete it? What yould appear in the hex editor? The
> empty or XXXed record?

Yes, this is away!

You can do 

    cursor->SetBlank()
    cursor->UpdateRecord()

And only now 
    cursor->DeleteRecord()

This will put zeroes.
Problem only with strings.
You need Update by string with the same length.

But if you can wait, better wait.
In 2.0 we have flag EraseOnDelete to secure this.

Problem with Update, that it also will spend time on indexing.


-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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