1, office document
There are many softwares to crack the password of Office series documents. For example, AOPR can simultaneously crack passwords generated by Microsoft Office series software such as Word, Excel and Access. The cracking speed is also quite fast, but only for documents obtained by the default encryption method.
In fact, Word and Excel in Office are the easiest to crack, but these two are the most common, and their passwords can be obtained quickly through the library of AOPR. The use of the software is also very simple, so remind everyone that if you encrypt files with traditional encryption methods, be careful.
Step 2 compress files
The password file made of compressed file represented by WinRAR is tough, and it is difficult to crack because its password involves its own file verification. Violent cracking has become the only way. At present, there are many programs that violently crack compressed files, all of which are plug-in dictionaries. Such as advanced RAR password recovery.
The setting of plug-in dictionary is the basis of cracking. If you know the birthday, common people and other information, the success rate of cracking will be greatly improved. If the number of passwords is not high, it is far away. ...
3.PDF document
PDF password deletion is definitely the best choice. However, there is a limitation when using it: if the PDF file contains the "user" password (that is, the password needed to open the file), or if both the "user" password and the "owner" password are unknown, the PDF Password Remove will be powerless.
There is also an earth method to identify documents through ORC. Of course, this is the best way for documents that cannot be printed. If it can be printed, the information can be output smoothly. After all, most PDF documents are reference materials.
4.WMV file
DRM pioneered the encryption of video files. Of course, we mean the shell encryption of video files. If you crack this kind of file, it will be in trouble. DRM technology is Digital Rights Management (DRM). This WMV format video cannot be played by a third-party player, and it must be WMP. You need to connect to the network to verify the DRM digital signature, and then you can play it after obtaining the license.
FairUse4WM is really a software for DRM, but remember to update the version, because Microsoft has been competing with it, and many versions have been blocked by Microsoft, so long-term update is very necessary.
Password injection files are generally divided into two ways, one is shell encapsulation, which is relatively simple to crack, because the shell can be peeled off through the key entry, and the other is password implantation data to participate in the operation, which is more troublesome at this time. Verification has become one-way, and violent cracking has become a method, but the probability of success has been greatly reduced. So it is more important to remember the password at this time.