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Libert-Quisquater05 uses symmetric pairing, not asymmetric optimal ate pairing as constructed in bn256

Hello,

Correct me if I'm wrong, but isn't that this paper "Identity Based Encryption Without Redundancy" you are trying to implement in ibe/ibe.go uses a symmetric pairing where G1xG1->G2?

But you used bn256 to perform pairing operations, which is constructed by the optimal ate pairing where G1xG2->GT. That means all functions bn256.Pair() you used in ibe/ibe.go have some problems, for example this line.

Looking forward to your reply,
Peter

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