In this paper, we present an efficient attack of the multivariate Quadratic Quasigroups (MQQ) cryptosystem. Our cryptanalysis breaks MQQ cryptosystems by solving systems of multivariate quadratic polynomial equations using a modified version of the MutantXL algorithm. We present experimental results comparing the behavior of our implementation of MutantXL to Magma’s implementation of F4 on MQQ ...

A generalized criterion for signature-based algorithms to compute Gröbner bases is proposed in this paper. This criterion is named by “generalized criterion”, because it can be specialized to almost all existing criteria for signature-based algorithms which include the famous F5 algorithm, F5C, extended F5, GV and the GVW algorithm. The main purpose of current paper is to study in theory which ...

In this paper we describe a method for integrating together cryptography and steganography through image processing. In particular, we present a system able to perform steganography and cryptography at the same time using images as cover objects for steganography and as keys for cryptography. We will show such system is an effective steganographic one (making a comparison with the well known F5...

We write a procedure for constructing noncommutative Gröbner bases. Reductions are done by particular linear projectors, called reduction operators. The operators enable us to use a lattice construction to reduce simultaneously each S-polynomial into a unique normal form. We write an implementation as well as an example to illustrate our procedure. Moreover, the lattice construction is done by ...

F3 and F4. Both of these were active in reducing the R.Q. in vitro (Table 1) but only one (F4) possessed growth-promoting activity. Since some pituitary preparations with intermedin activity (Colip, 1938; Folley, 1955) have been found to possess also an R.Q.-lowering action, Dr H. B. F. Dixon kindly tested some of our preparations for melanocyte-stimulating activity in frogs and found no relati...

The energy-level alignment at interfaces between three electroactive conjugated organic materials and Au was systematically varied by adjusting the precoverage of the metal substrate with the electron acceptor tetrafluoro-tetracyanoquinodimethane (F4-TCNQ). Photoelectron spectroscopy revealed that electron transfer from Au to adsorbed F4-TCNQ was responsible for lowering the hole-injection barr...

This article contains data related to the research article entitled "Altered relation of the renin-aldosterone system and vasoactive peptides in type 2 diabetes: the KORA F4 study" (Then et al., 2016) [1] and describes the association of the aldosterone to renin ratio with midregional-pro atrial natriuretic peptide (MR-proANP) and midregional-pro adrenomedullin (MR-proADM) in 1261 participants ...

Results of the ηππ and ωω final state partial wave analysis(PWA) are presented. The mass-independent and the mass-dependent PWA were performed. The ηππ system PWA results in the observation of the resonances in the J = 1, 3, 2 and 4 waves. The results of the ωω system PWA confirms the existence of the f2(1565) and f4(2050). The f2(1950) is observed. There is evidence for a f4(2300) meson.

Table SI. Splenic immune cell populations unchanged in conditional NBR1-deficient mice CD4 CD8 B220 NK1.1 CD11b + F4/80 CD11c F4/80 NBR1fl/fl 17.6 ± 1.0 13.9 ± 0.7 59.7 ± 2.1 3.7 ± 0.7 5.9 ± 0.5 4.1 ± 0.3 NBR1fl/fl CreOX40 17.9 ± 0.8 14.6 ± 0.4 60.0 ± 0.9 4.3 ± 0.5 5.9 ± 0.6 4.8 ± 0.6 Single-cell suspension from spleen were stained by FACS. Percentages (Means ± SE) of positive cells gated on ly...

A general method for computing irreducible representations of Weyl groups and Iwahori–Hecke algebras was introduced by the first author in [10]. In that paper the representations of the algebras of typesAn,Bn,Dn andG2 were computed and it is the purpose of this paper to extend these computations to F4. The main goal here is to compute irreducible representations of the Iwahori–Hecke algebra of ...