Software Cracking

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Software Cracking
Protective Technique of Software
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Introduction
No matter it is just simple game software or a
professional software which costs millions
dollars, all software have their own
protection. The programmers and software vendors
make various complicated protection with
thousands of amazing ways. The only goal just
prevents the valuable software from being copied
and sold in illegal ways.
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Computer Software Copy Protection
Publisher
Mastering House
Replicator
Laser beam recorder adds digital signature to
Glass Master
Consumer
Copy Attempt
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Types of protection
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Format Disk Track Protection

• This method is developed in the earliest time.
• Using the function of the int 13th of BIOS
• to produce the function of protection.
• For exampleIBM computer use a piece of IC
• named upD756A to control the whole drive
• Advantage Format Disk Track, is an
• economical protection.

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Format Disk Track Protection

• Disadvantage these ways still cause
• somewhat inconveniences you usually have to
• turn on and off the switch to change the disk
  
• various diskette or mechanical differences
  still
• make some mistakes on recognition the disks
• get decay or destroyed that caused by long-
• term keeping. So there are fewer people using
• this protection.

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Break Disk Protection

• Basically, the feature of Break Disk
  protection
• is just as that of Format Disk Protection.
  Both of
• them use irregular data to make the disk have
• only the read-only function.
• The difference is that Break Disk Protection
  burns
• a hole on the disk, or scratch down the
  magnetic
• powder to make the errors in the reading
  process.
• Advantage Just like all common disk protection,
  
• it costs lowers and its easy to make.

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Break Disk Protection

• Disadvantage Break Disk Protection has the
• liabilities exact as same as Format Disk
  Protection
• does. In addition, if the quality is not good
  enough,
• it even hurts the diskette.
• Besides, its not safe to scratch the magnet
• powders on the disk. The magnetic powders
• around the place where was scratched would
• became weak and easy to fall off.

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Password Protection

• Password Protection is the most popular
• protective technique in recent years.
• Advantage The benefit for the users is the same
  
• as the Key-Disk Protection. You dont have to
  pay
• much and it is also quite easy for the
  producers to
• set the password.
• Disadvantage Password Protection basically has
• no disadvantages that both Break Disk
  Protection
• and Format Disk Track Protection have. It is
  not
• convenient to the user.

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Keypro
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Keypro Protection

• Keypro protection is to write the legal software
  
• data in EEPROM, then diskette can use parallel
  port
• to investigate that if keypro exit or not, or
  check the
• data in keypro correct or not.
• Advantage Keypro protection is a kind of
  hardware
• protection. It is more complicate to be broken
  then
• other way made by software. In addition, the
  cost is
• even cheaper then Key-Card.

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• Disadvantage Some venders does not design
• well, it often obstruct the operation of
  printer.
• Besides this, many keypro come from different
• factories and combine together. It also causes
  
• program to make misunderstanding. Keypro is so
  
• efficient, and more and more vendors want to
• use it, then it is hard to set the computer.

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Problem???
PC Or Printer
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Key Card
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Key Card Protection ( Golden key Smart card )

• Key Card protection is somewhat similar as that
• of keypro. The difference is that key card
  was
• plugged in the ISA or PCI, but keypro was
• plugged in the printer.
• Advantage Similar to the Keypro protection, the
  
• system in this case also protected by
  hardware,
• so it not easy to be broken into.
• Disadvantage It is complex to install the key-
• card. Because the user have to open the case
  of
• computers. If you dont be careful, you might
• hunt the PC or interface card.

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Problem???
Key Card
Key Card
Key Card
Key Card
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Protection of Trial Version

• Trial Protection is more special than others.
• Advantage Its a wonderful promotion for the
• programmers. Then they might have lots of
• supporters and customers by this way.
• Disadvantage This protection does not cause
• some big problems to the customers. Users just
  
• have to pay more attention to the date and
  time
• to consider to use or not in the future.

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Serial Number and Registration

• The serial number is on the Registration Form
• that comes with our software. The information
  in
• the Name and Organization fields is used to
• calculate our license number.
• Advantage It is easier and more ethical to the
• users.
• Disadvantage The serial numbers are easy leak
• out and copied easily.

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CD-ROM Check Protection

• CD-Check is a brand new system that provides
• secured access to CD-ROMs and provides
• protection against illegal copying.
• Advantage CD-ROM is easy to keep well, unlike
• diskette which easy to be damaged or
  destroyed.
• Disadvantage As usual, most CD-ROM is
• imitated by hard drive. It means that, if
  CD-ROM
• may be replaced with some hard drive program,
• and it is possible for system to ignore it and
  
• accept it.

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 CONCLUSION

• Develop more practical products to
• attract more users.
• Reasonable price.
• Good customer service to maintain
• the quality of the products.
• Give details in using brochures to
• prevent the operating mistakes.
• Perfect Technical support.