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Old 10-22-2008, 11:54 AM   #4
bill_mchale
Wizard
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Well, I am not sure the problem would be the discouragement of the embedded ID; after all, that is essentially the scheme eReader uses.

In short, there is no way to embed a buyer's id into the text that can't be stripped relatively easily. The only way to embed the id is to encrypt the book; but any encryption scheme where the attacker knows the plain text and the key is not going to stand up against a dedicated attack.

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Bill
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