Q. How can the decryption key be secured in dongle-based protections?

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Q. What is the main problem with decrypting data on a computer without exposing it to attackers?

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Q. What is Trusted Computing?

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Q. What were media-based protections?

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Q. How did media-based protections work on floppy disks?

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Q. Which programs could deal with the special sectors created in media-based protections?

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Q. Are programs that duplicate the special sectors in media-based protections legal?

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Q. What is the purpose of using serial numbers in software?

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Q. How does the installation program verify the validity of a serial number?

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Q. Why is relying exclusively on a plain serial number flawed?

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Q. What is the impact of the internet on the effectiveness of serial numbers as a protection mechanism?

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Q. What is a challenge response in the context of software copy protection mechanisms?

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Q. What is the difference between the original serial number protection scheme and the challenge response scheme?

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Q. How does the challenge response scheme provide usage information to the software vendor?

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Q. How do pirates typically crack the challenge response protection scheme?

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Q. What is a dongle?

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Q. What is the purpose of a dongle-based protection?

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Q. How does a trivial implementation of a dongle-based protection work?

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Q. What is the solution employed by dongle developers to make their protection scheme more secure?

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Q. How does a dongle-based protection scheme work?

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