Anonymous Homomorphic IBE with Application to Anonymous Aggregation

ePrint Report: Anonymous Homomorphic IBE with Application to Anonymous Aggregation

Michael Clear, Ciaran McGoldrick, Hitesh Tewari

All anonymous identity-based encryption (IBE) schemes that are group homomorphic (to the best of our knowledge) require knowledge of the identity to compute the homomorphic operation. This paper is motivated by this open problem, namely to construct an anonymous group-homomorphic IBE scheme that does not sacrifice anonymity to perform homomorphic operations. Note that even when strong assumptions such as indistinguishability obfuscation (iO) are permitted, …

aggregation anonymous application best of clear compute encryption eprint report identity knowledge michael problem report