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I have a question . How the system know the attributes of the users to be after that as a public key in ABE?

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I'm having a hard time understanding your question. It does not appear to be grammatically correct. Can you provide more context? – mikeazo Oct 6 '15 at 14:58
Also please be clear on whether you are asking about CP-ABE or KP-ABE. – sashank Oct 6 '15 at 15:01

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