In this paper, a higher order differential attack on the hash function Luffa v1 is discussed. We confirmed that the algebraic degree of the permutation Qj which is an important non-linear component of Luffa grows slower than an ideal case both by the theoretical and the experimental approaches. According to our estimate, we can construct a distinguisher for step-reduced variants of Luffa v1 up ...

Luffa acutangula and Luffa cylindrica are the two important species under the genus Luffa. These two species are used by traditional medicinal practitioners for treating various human disorders. The phytochemical analysis of the various parts of these plants has revealed many phytoconstituents of medicinal importance. The wide distribution of these species has made it easily available and many ...

Luffa is a family of cryptographic hash functions that has been selected as a second round SHA-3 candidate. This paper presents the first collision finding analysis of Luffa-256 v2 which is the 256-bit hash function in the Luffa family. We show that collisions for 4 out of 8 steps of Luffa can be found with complexity 2 using sophisticated message modification techniques. Furthermore, we presen...

Luffa aegyptiaca (Luffa sponge gourd) is increasingly seen as both a source of vegetative nutrition and as a source of the “luffa” used as to exfoliate during bathing. As such, the commercial growing of Luffa aegyptiaca is increasingly being investigated using more intensive farming methods. Two factors traditionally used to promote / speed germination and emergence of vegetable seeds is invest...

We develop a number of techniques for the cryptanalysis of the SHA-3 candidate Luffa, and apply them to various Luffa components. These techniques include a new variant of the rebound approach taking into account the specifics of Luffa. The main improvements include the construction of good truncated differential paths, the search for differences using multiple inbound phases and a fast final s...

The strain rate effect of luffa sponge material is an indispensable property for it to be used for acoustic, vibration, and impact energy absorption. Compressive tests at different strain rates on cylindrical column specimens of luffa sponge material were conducted over a wide density ranging from 24 to 64 kg/m. A photographic technique was applied to measure the section area of the specimen wi...

Balancing stomata-dependent CO2 assimilation and transpiration is a key challenge for increasing crop productivity and water use efficiency under drought stress for sustainable crop production worldwide. Here, we show that cucumber and luffa plants with luffa as rootstock have intrinsically increased water use efficiency, decreased transpiration rate and less affected CO2 assimilation capacity ...

BLACK Luffa sponge, derived from dried fruits of Luffa aegyptiaca Mill. (Sponge gourd, Hindi – Ghiya tori), could be a suitable matrix for tissue culture in aseptic liquid culture media. To test this, the response of aroid Philodendron ‘Xanadu’ Hort., an exquisite indoor-ornamental with its beautiful leaves and tangled aerial roots, was studied in vitro by Gangopadhyay and others. A study on in...

Fresh-cut luffa (Luffa cylindrica) fruits commonly undergo browning. However, little is known about the molecular mechanisms regulating this process. We used the RNA-seq technique to analyze the transcriptomic changes occurring during the browning of fresh-cut fruits from luffa cultivar 'Fusi-3'. Over 90 million high-quality reads were assembled into 58,073 Unigenes, and 60.86% of these were an...

In this paper, we identify higher-order differential and zero-sum properties in the full Keccak-f permutation, in the Luffa v1 hash function, and in components of the Luffa v2 algorithm. These structural properties rely on a new bound on the degree of iterated permutations with a nonlinear layer composed of parallel applications of smaller balanced Sboxes. These techniques yield zero-sum partit...