IACR News item: 25 October 2012
Amit sahai, Brent Waters
ePrint Report
In this work, we provide the first construction of Attribute-Based
Encryption (ABE) for general circuits. Our construction is based on
the existence of multilinear maps. We prove selective security of
our scheme in the standard model under the natural multilinear
generalization of the BDDH assumption. Our scheme achieves both
Key-Policy and Ciphertext-Policy variants of ABE.
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