Symmetric Searchable Encryption (SSE) has received wide attention due to its practical
application in searching on encrypted data. Beyond search, data addition and deletion are …

In an attribute-based encryption (ABE) scheme, a ciphertext is associated with an ℓ-bit public
index ind and a message m, and a secret key is associated with a Boolean predicate P. The …

Functional encryption is a modern public-key paradigm where a master secret key can be
used to derive sub-keys SK_F associated with certain functions F in such a way that the …

Indistinguishability obfuscation (IO) is a tremendous notion, powerful enough to give rise to
almost any known cryptographic object. Prior candidate IO constructions were based on …

The arrival of indistinguishability obfuscation (i O i O) has transformed the cryptographic
landscape by enabling several security goals that were previously beyond our reach …

We consider a situation where multiple parties, owning data that have to be frequently
updated, agree to share weighted sums of these data with some aggregator, but where they …

All constructions of general purpose indistinguishability obfuscation (IO) rely on either meta-
assumptions that encapsulate an exponential family of assumptions (eg, Pass, Seth and …

We extend the reach of functional encryption schemes that are provably secure under
simple assumptions against unbounded collusion to include function-hiding inner product …

We consider the question of finding the lowest degree L for which L-linear maps suffice to
obtain IO. The current state of the art (Lin, EUROCRYPT'16, CRYPTO'17; Lin and …

We construct an indistinguishability obfuscation (IO) scheme for all polynomial-size circuits
from constant-degree graded encoding schemes, assuming the existence of a …