Q. What is OllyDbg?

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Q. What is digital rights management (DRM)?

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Q. Is cracking commercial copy protection mechanisms legal?

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Q. Why is heavy inlining used in Defender?

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Q. What is dongle protection?

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Q. Why is generating decryption keys in runtime important?

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Q. What is the disadvantage of user-input-based decryption keys?

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Q. What would make cracking Defender more difficult?

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Q. Why was the Chained Block Cipher in Defender crackable?

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Q. What is the purpose of dongle protection?

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Q. How does Defender generate decryption keys?

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Q. What is a cryptographic hash algorithm?

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Q. How does Defender use interdependent keys?

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Q. What are interdependent keys?

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Q. What is the advantage of generating decryption keys in runtime?

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Q. What should be done with the verification thread in a commercial product environment?

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Q. Why should the actual checksum verifications be inlined?

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Q. What is the purpose of adding periodical checksum calculations from the main thread?

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Q. What priority should the verification thread be set to in a commercial product environment?

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Q. What changes should be made to the counter constant in a commercial product environment?

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