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Verifiable Functional Encryption [PDF]

open access: yes, 2016
In light of security challenges that have emerged in a world with complex networks and cloud computing, the notion of functional encryption has recently emerged. In this work, we show that in several applications of functional encryption even those cited in the earliest works on functional encryption, the formal notion of functional encryption is ...
Saikrishna Badrinarayanan   +3 more
openaire   +3 more sources

Combiners for Functional Encryption, Unconditionally [PDF]

open access: yes, 2020
Functional encryption (FE) combiners allow one to combine many candidates for a functional encryption scheme, possibly based on different computational assumptions, into another functional encryption candidate with the guarantee that the resulting candidate is secure as long as at least one of the original candidates is secure. The fundamental question
Aayush Jain, Nathan Manohar, Amit Sahai
openaire   +3 more sources

Upgrading to Functional Encryption [PDF]

open access: yes, 2018
The notion of Functional Encryption (FE) has recently emerged as a strong primitive with several exciting applications. In this work, we initiate the study of the following question: Can existing public key encryption schemes be “upgraded” to Functional Encryption schemes without changing their public keys or the encryption algorithm?
Saikrishna Badrinarayanan   +3 more
openaire   +3 more sources

Publicly Auditable Functional Encryption [PDF]

open access: yes, 2023
We introduce the notion of publicly auditable functional encryption (PAFE). Compared to standard functional encryption, PAFE operates in an extended setting that includes an entity called auditor, besides key-generating authority, encryptor, and ...
Vlasis Koutsos   +1 more
core   +4 more sources

Multi-Party Functional Encryption [PDF]

open access: yes, 2021
We initiate the study of multi-party functional encryption (MPFE) which unifies and abstracts out various notions of functional encryption which support distributed ciphertexts or secret keys, such as multi-input FE, multi-client FE, decentralized multi ...
Shweta Agrawal 0001   +2 more
openaire   +3 more sources

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