Results 21 to 30 of about 22,757,978 (63)
Recent advances in structural studies of the Legionella pneumophila Dot/Icm type IV secretion system
Microbiology and Immunology, Volume 66, Issue 2, Page 67-74, February 2022., 2022 Abstract The intracellular bacterial pathogen Legionella pneumophila utilizes the Dot/Icm type IV secretion system to translocate approximately 300 effector proteins to establish a replicative niche known as the Legionella‐containing vacuole. The Dot/Icm system is classified as a type IVB secretion system, which is evolutionarily closely related to the
Tomoe Kitao, Tomoko Kubori, Hiroki Nagai
wiley +1 more source
, 2023 Isogeny-based cryptography is one of the candidates for post-quantum cryptography. SIDH is a compact and efficient isogeny-based key exchange, and SIKE, which is the SIDH-based key encapsulation mechanism, remains the NIST PQC Round 4.
Tomoki Moriya
core +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 Scalar multiplications are considered an essential aspect of implementations of isogeny‐based cryptography. The efficiency of scalar multiplication depends on the equation of the underlying elliptic curves and the addition chain employed. Bos and Friedberger recently stated that, for larger scalar multiplication, addition‐subtraction chains will become
Sookyung Eom +3 more
wiley +1 more source
, 2023 We show that the soundness proof for the De Feo-Jao-Plut identification scheme (the basis for supersingular isogeny Diffie--Hellman (SIDH) signatures) contains an invalid assumption, and we provide a counterexample for this assumption---thus showing the ...
Luca De Feo +3 more
core +1 more source
Efficiency of SIDH-based signatures (yes, SIDH) [PDF]
, 2023 In this note we assess the efficiency of a SIDH-based digital signature built on a weakened variant of a recent identification protocol proposed by Basso et al.
Mattia Veroni +2 more
core +1 more source
Structural basis for the toxicity of Legionella pneumophila effector SidH
, 2023 Legionella pneumophila (LP) secretes more than 300 effectors into the host cytosol to facilitate intracellular replication. One of these effectors, SidH, 253 kDa in size with no sequence similarity to proteins of known function is toxic when ...
Griffith-Jones, Simonne +23 more
core +1 more source
Improved torsion-point attacks on SIDH variants [PDF]
, 2021 SIDH is a post-quantum key exchange algorithm based on the presumed difficulty of finding isogenies between supersingular elliptic curves. However, SIDH and related cryptosystems also reveal additional information: the restriction of a secret isogeny to ...
Chloe Martindale +6 more
core +3 more sources
eSIDH: the revenge of the SIDH [PDF]
, 2020 The Supersingular Isogeny-based Diffie-Hellman key exchange protocol (SIDH) was introduced by Jao an De Feo in 2011. SIDH operates on supersingular elliptic curves defined over quadratic extension fields of the form GF($p^2$), where $p$ is a large prime ...
Daniel Cervantes-Vázquez +2 more
core +1 more source
Authenticated key exchange for SIDH [PDF]
, 2018 We survey authenticated key exchange (AKE) in the context of supersingular isogeny Diffie-Hellman key exchange (SIDH). We discuss different approaches to achieve authenticated key exchange, and survey the literature. We explain some challenges that arise
Steven D. Galbraith
core +1 more source
Molecular Microbiology, Volume 121, Issue 2, Page 243-259, February 2024.We describe a novel LysR‐type transcriptional regulator (LelA) which activates the expression of three Legionella pneumophila effector‐encoding genes (LegL6, LegL7 and LegU1), and is regulated by the RpoS sigma factor. Our data provides insights into the expression, evolution and distribution of this regulator and its target genes.
Naomi Shapira, Tal Zusman, Gil Segal
wiley +1 more source