Fully Secure Broadcast Encryption for Inner-Product Predicates
نویسندگان
چکیده
منابع مشابه
Fully Secure Unbounded Inner-Product and Attribute-Based Encryption
In this paper, we present the first inner-product encryption (IPE) schemes that are unbounded in the sense that the public parameters do not impose additional limitations on the predicates and attributes used for encryption and decryption keys. All previous IPE schemes were bounded, or have a bound on the size of predicates and attributes given public parameters fixed at setup. The proposed unb...
متن کاملFully Secure Predicate - based Broadcast Encryption ?
According to the broadcast encryption scheme with wide applications in the real world, a fully secure predicate-based broadcast encryption was proposed by combining with Waters dual system encryption, predicate encryption and the orthogonality property of composite-order bilinear groups. Based on the standard model, the scheme can achieve constant-size key and ciphertext, and guarantee the secu...
متن کاملFully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption
In this paper, we present two fully secure functional encryption schemes. Our first resultis a fully secure attribute-based encryption (ABE) scheme. Previous constructions of ABEwere only proven to be selectively secure. We achieve full security by adapting the dualsystem encryption methodology recently introduced by Waters and previously leveraged toobtain fully secure IBE ...
متن کاملFunctional Encryption for Inner Product Predicates from Learning with Errors
We propose a lattice-based functional encryption scheme for inner product predicates whose security follows from the difficulty of the learning with errors (LWE) problem. This construction allows us to achieve applications such as range and subset queries, polynomial evaluation, and CNF/DNF formulas on encrypted data. Our scheme supports inner products over small fields, in contrast to earlier ...
متن کاملFully Secure Functional Encryption for Inner Products, from Standard Assumptions
Functional encryption is a modern public-key paradigm where a master secret key can be used to derive sub-keys SKF associated with certain functions F in such a way that the decryption operation reveals F (M), if M is the encrypted message, and nothing else. Recently, Abdalla et al. gave simple and efficient realizations of the primitive for the computation of linear functions on encrypted data...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2012
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2011.12.714