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In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]
We will semi protect the page from editing. In the edit box, you will see that the default "Allow all users" is checked. To semi-protect, check the box for Allow only autoconfirmed users. (To test fully protecting the page, select the Allow only administrators option.) At the bottom of the edit box there is a dropdown menu titled expires. The ...
File locking is a mechanism that restricts access to a computer file, or to a region of a file, by allowing only one user or process to modify or delete it at a specific time, and preventing reading of the file while it's being modified or deleted.
Effective redaction of electronic documents requires the removal of all relevant text and image data from the document file. This process, internally complex, can be carried out very easily by a user with the aid of "redaction" functions in software for editing PDF or other files.
The various levels of protection can be applied to the page edit, page move, page create, and file upload actions. Even when a page is protected from editing, the source code of the page can still be viewed and copied by anyone. A protected page is marked at its top right by a padlock icon, usually added by the {{pp-protected}} template.
Once you've created a filter, you'll be able to edit or delete it from the same screen. Filters can be deleted by clicking the X next to "Edit." Create a filter. 1. Click Create filter. 2. Enter the parameters of your filter. 3. Click Save. Edit a filter. 1. Mouse over the filter's name. 2. Click Edit. 3. Enter the change you want to make. 4 ...
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