Titlebook: Information Security and Privacy; 27th Australasian Co Khoa Nguyen,Guomin Yang,Willy Susilo Conference proceedings 2022 The Editor(s) (if a

Generator

Lecture Notes in Computer Sciencehttp://image.papertrans.cn/i/image/465412.jpg

mitten

978-3-031-22300-6The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl

统治人类

Information Security and Privacy978-3-031-22301-3Series ISSN 0302-9743 Series E-ISSN 1611-3349

Alveoli

https://doi.org/10.1007/978-3-031-22301-3authentication; block ciphers; blockchain; computer networks; computer security; computer systems; cryptan

BOOR

Collar

懒洋洋

Assault

Cryptanalysis and Repair of a Gabidulin Code Based Cryptosystem from ACISP 2018, which is shown to require exponential complexity for the proposed attack. Additionally, we apply this attack to cryptanalyze another Gabidulin code based cryptosystem proposed by Loidreau at PQCrypto 2017, and improve Loidreau’s result in a talk at CBCrypto 2021.

Density

Chosen Ciphertext Secure Keyed Two-Level Homomorphic Encryptionith both efficiency and richer functionality are known so far. In this paper, we propose a “two-level" KH-PKE scheme for evaluating degree-two polynomials, by cleverly combining Emura et al.’s generic framework with a recent efficient two-level HE by Attrapadung et al. (ASIACCS 2018).

fodlder

Structure-Preserving Linearly Homomorphic Signature with Designated Combiner for Subspaces indistinguishable from signatures generated by the signer. Only the signer and the designated entity can generate a valid signature for any combined vector. Finally, we prove our scheme is secure under the CDH problem assumption and show it is efficient.