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ASIACRYPT
2015
Springer

Function-Hiding Inner Product Encryption

7 years 11 months ago
Function-Hiding Inner Product Encryption
We extend the reach of functional encryption schemes that are provably secure under simple assumptions against unbounded collusion to include function-hiding inner product schemes. Our scheme is a private key functional encryption scheme, where ciphertexts correspond to vectors x, secret keys correspond to vectors y, and a decryptor learns x, y . Our scheme employs asymmetric bilinear maps and relies only on the SXDH assumption to satisfy a natural indistinguishability-based security notion where arbitrarily many key and ciphertext vectors can be simultaneously changed as long as the key-ciphertext dot product relationships are all preserved.
Allison Bishop, Abhishek Jain 0002, Lucas Kowalczy
Added 16 Apr 2016
Updated 16 Apr 2016
Type Journal
Year 2015
Where ASIACRYPT
Authors Allison Bishop, Abhishek Jain 0002, Lucas Kowalczyk
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