We propose a new generic framework for achieving fully secure attribute based encryption
(ABE) in prime-order bilinear groups. Previous generic frameworks by Wee (TCC'14) and …

Revocable storage and efficient description of the access policy are necessary to enhance
the practicality of the attribute-based encryption (ABE) in real-life scenarios, such as cloud …

Forward secrecy is considered an essential design goal of modern key establishment (KE)
protocols, such as TLS 1.3, for example. Furthermore, efficiency considerations such as zero …

Registered encryption (Garg et al., TCC'18) is an emerging paradigm that tackles the key-
escrow problem associated with identity-based encryption by replacing the private-key …

Registered attribute-based encryption (Reg-ABE), introduced by Hohenberger et
al.(Eurocrypt'23), emerges as a pivotal extension of attribute-based encryption (ABE), aimed …

Pair encodings and predicate encodings, recently introduced by Attrapadung [2] and Wee
[36] respectively, greatly simplify the process of designing and analyzing predicate and …

We address the problem of ciphertext-policy attribute-based encryption with fine access
control, a cryptographic primitive which has many concrete application scenarios such as …

We present several transformations that combine a set of attribute-based encryption (ABE)
schemes for simpler predicates into a new ABE scheme for more expressive composed …

Abstract We introduce Multimodal Private Signature (MPS)-an anonymous signature system
that offers a novel accountability feature: it allows a designated opening authority to learn …

Abstract Wee (TCC'14) and Attrapadung (Eurocrypt'14) introduced predicate and pair
encodings, respectively, as a simple way to construct and analyze attribute-based …