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Targeted malleability: homomorphic encryption for restricted computations
restricted computations homomorphic encryption
2015/8/5
We put forward the notion of targeted malleability: given a homomorphic encryption scheme, in various scenarios we would like to restrict the homomorphic computations one can perform on encrypted data...
Fully Key-Homomorphic Encryption, Arithmetic Circuit ABE, and Compact Garbled Circuits
Arithmetic Circuit ABE Compact Garbled Circuits
2015/8/5
We construct the rst (key-policy) attribute-based encryption (ABE) system with short
secret keys: the size of keys in our system depends only on the depth of the policy circuit,
not its size. Our c...