Title
Function-Hiding Inner Product Encryption.
Abstract
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 $$\\vec {x}$$, secret keys correspond to vectors $$\\vec {y}$$, and a decryptor learns $$\\langle \\vec {x}, \\vec {y} \\rangle $$. 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.
Year
DOI
Venue
2015
10.1007/978-3-662-48797-6_20
IACR Cryptology ePrint Archive
Field
DocType
Volume
Discrete mathematics,Computer science,Theoretical computer science,Encryption,Functional encryption,Ciphertext,Dot product,Public-key cryptography,Collusion,Bilinear interpolation
Journal
2015
ISSN
Citations 
PageRank 
0302-9743
25
0.93
References 
Authors
26
3
Name
Order
Citations
PageRank
Allison Bishop1351.71
Abhishek Jain 00022733.14
Lucas Kowalczyk3444.97