Is it possible to achieve IND-CCA Security for CP-ABE with ECC instead of Bilinear-mapping?

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Zeyad Mohammad

I think you may achieve IND-CCA security by using ECC but it may take higher computation.

Chetan Naik

Zeyad Mohammad sir, can you please elaborate more on how to achieve IND-CCA security by using ECC in case of CP-ABE scheme? Because the key recovery attack was carried out particularly w.r.t. CP-ABE scheme.

The exchanged messages should be encrypted .