Digital Signal Processing

1709 Submissions

[12] viXra:1709.0429 [pdf] submitted on 2017-09-28 16:39:01

Time-Coordinated Signatures

Authors: Santi J. Vives Maccallini
Comments: 17 Pages.

Abstract: Hash-based signatures are typically stateful: they need to keep a state with the number of past signatures to know which values have been already used and cannot be reused. If the memory storing the state fails, the security would degrade. Some implementations solve the problem by using a number of secret values so large that the probability of picking the same at random is negligible, but this solution can make the signatures impractical for some real world applications. This paper proposes a new approach to hash-based signatures: we show that it is possible to derive their state entirely from time, without the need to keep a state with the number of past signatures, Keywords: many-times signatures, hash-based signatures, post-quantum cryptography, stateless, authentication, merkle tree, directed graph, time, clock.
Category: Digital Signal Processing

[11] viXra:1709.0413 [pdf] submitted on 2017-09-28 05:21:39

Brain-Like Photonic Microchips

Authors: George Rajna
Comments: 40 Pages.

Scientists have made a crucial step towards unlocking the "holy grail" of computing-microchips that mimic the way the human brain works to store and process information. [24] Considerable interest in new single-photon detector technologies has been scaling in this past decade. [23] Engineers develop key mathematical formula for driving quantum experiments. [22] Physicists are developing quantum simulators, to help solve problems that are beyond the reach of conventional computers. [21] Engineers at Australia's University of New South Wales have invented a radical new architecture for quantum computing, based on novel 'flip-flop qubits', that promises to make the large-scale manufacture of quantum chips dramatically cheaper-and easier-than thought possible. [20] A team of researchers from the U.S. and Italy has built a quantum memory device that is approximately 1000 times smaller than similar devices— small enough to install on a chip. [19] The cutting edge of data storage research is working at the level of individual atoms and molecules, representing the ultimate limit of technological miniaturisation. [18] This is an important clue for our theoretical understanding of optically controlled magnetic data storage media. [17] A crystalline material that changes shape in response to light could form the heart of novel light-activated devices. [16] Now a team of Penn State electrical engineers have a way to simultaneously control diverse optical properties of dielectric waveguides by using a two-layer coating, each layer with a near zero thickness and weight. [15] Just like in normal road traffic, crossings are indispensable in optical signal processing.
Category: Digital Signal Processing

[10] viXra:1709.0412 [pdf] submitted on 2017-09-27 14:15:40

Formalizing Image Processing in Higher Order Logic(hol) by Understanding and Using XML-Hol-Scala-JVM Software Framework Towards Processing of Cryo-Em/tem/sem Images Based on Levy Processes a Novel Suggestion

Authors: D.N.T.Kumar
Comments: 14 Pages. A NOVEL SUGGESTION IN THE CONTEXT OF INSTRUMENTATION & HIGH PERFORMANCE COMPUTING ENVIRONMENT.

In this research work it was proposed to understand and use Levy processes based on XML-HOL-Scala/JVM software in the context of Cryo-EM/SEM/TEM image processing.Though the discussion is very much related to Cryo-EM based topics similar logic could be applied in developing a convenient informatics framework to process other electron-microscopy images.It is one of the pioneering efforts in this direction to use Levy processes in such situations.In the near future,inorder to achieve “Smart & Intelligent” image processing platforms,we could envision incorporating advanced technology based on HOL-XML-Scala/JVM framework which will allow the seamless integration of technologies such as agents, model-based reasoning,genetic algorithms,and artificial neural nets towards robust image processing tasks on-hand.
Category: Digital Signal Processing

[9] viXra:1709.0402 [pdf] submitted on 2017-09-26 13:34:49

Detection and Prevention of Non-PC Botnets

Authors: Jai Puneet Singh, Akashdeep Chauhan
Comments: 7 Pages.

Botnet attacks are serious and well-established threat to the internet community. These attacks are not only restricted to PC or laptops but spreading their roots to a device such as smartphones, refrigerators, and medical instruments. According to users, they are devices which are least prone to attacks. On the other hand, a device that is expected to be least vulnerable has low-security aspects which attract the attackers. In this paper, we have listed the details of latest Botnet attacks and common vulnerabilities behind such attacks. We have also explained as well as suggested proved Detection ways based on their types. After an analysis of attacks and detection techniques, we have suggested recommendations which can be utilized in order to mitigate such attacks.
Category: Digital Signal Processing

[8] viXra:1709.0389 [pdf] submitted on 2017-09-26 11:10:29

An Insight Into Commutative Algebra Based Informatics & Computational Architecture for Cryo-em Image Processing Involving Gröbner Bases Using C++/java/hol/scala/scalalab/imagej Software Environments – a Short Communication on Gröbner Bases

Authors: D.N.T.Kumar
Comments: 7 Pages. A Short Communication on Gröbner Bases With Applications in Signals and Systems Using JikesRVM/JVM.

In this research communication on commutative algebra it was proposed to deal with Grobner Bases and its applications in signals and systems domain.This is one of the pioneering communications in dealing with Cryo-EM Image Processing application using multi-disciplinary concepts involving thermodynamics and electro magnetics based on first principles approach.
Category: Digital Signal Processing

[7] viXra:1709.0376 [pdf] submitted on 2017-09-24 14:31:58

Haskell-Java-JikesRVM/ImageJ Nano-Bio Informatics Framework based Cryo-Electron Microscopy/TEM/SEM Image Processing in the Context of Haskell Image Processing Libraries & HDF5 Image Format – A Simple Communication on Applications of Meta-circular Research

Authors: D.N.T.Kumar
Comments: 9 Pages. A Simple Communication on Applications of Meta-circular Research Virtual Machine(RVM) & JTransformer-Prolog Development Tool.

Current R&D project was the development of a software platform designed to be an advanced research testbed for the prototyping of Haskell based novel technologies in Cryo-EM Methodologies. Focused upon software architecture concepts and frameworks involving Haskell image processing libraries.Cryo-EM is an important tool to probe nano-bio systems.A number of hi-tech firms are implementing BIG-DATA analysis using Haskell especially in the domains of Pharma,Bio-informatics etc. Hence current research paper is one of the pioneering attempts made by the author to encourage advanced data analysis in the Cryo-EM domain to probe important aspects of nano-bio applications.
Category: Digital Signal Processing

[6] viXra:1709.0359 [pdf] replaced on 2017-09-29 20:15:19

A Sharp Sufficient Condition of Block Signal Recovery Via $l_2/l_1$-Minimization

Authors: Jianwen Huang, Jianjun Wang, Wendong Wang
Comments: 16 Pages.

This work gains a sharp sufficient condition on the block restricted isometry property for the recovery of sparse signal. Under the certain assumption, the signal with block structure can be stably recovered in the present of noisy case and the block sparse signal can be exactly reconstructed in the noise-free case. Besides, an example is proposed to exhibit the condition is sharp. As byproduct, when $t=1$, the result enhances the bound of block restricted isometry constant $\delta_{s|\mathcal{I}}$ in Lin and Li (Acta Math. Sin. Engl. Ser. 29(7): 1401-1412, 2013).
Category: Digital Signal Processing

[5] viXra:1709.0164 [pdf] submitted on 2017-09-13 13:04:54

RSA Cryptography over Polynomials (II)

Authors: Antoine Balan
Comments: 2 pages, written in french

Here is presented a cryptosystem near the RSA cryptosystem but for polynomials over a finite field, more precisely two irreducible polynomials instead of two prime numbers.
Category: Digital Signal Processing

[4] viXra:1709.0152 [pdf] submitted on 2017-09-12 12:53:40

Cryptography Over the Circle

Authors: Antoine Balan
Comments: 2 pages, written in french

As a commutativ group the circle can be used to make cryptography. Here is presented the general figure of a cryptography over the circle.
Category: Digital Signal Processing

[3] viXra:1709.0078 [pdf] submitted on 2017-09-07 09:58:35

Magnetic Data Writing

Authors: George Rajna
Comments: 33 Pages.

Magnetic data storage has long been considered too slow for use in the working memories of computers. Researchers at ETH have now investigated a technique by which magnetic data writing can be done considerably faster and using less energy. [20] A team of researchers from the U.S. and Italy has built a quantum memory device that is approximately 1000 times smaller than similar devices— small enough to install on a chip. [19] The cutting edge of data storage research is working at the level of individual atoms and molecules, representing the ultimate limit of technological miniaturisation. [18] This is an important clue for our theoretical understanding of optically controlled magnetic data storage media. [17] A crystalline material that changes shape in response to light could form the heart of novel light-activated devices. [16] Now a team of Penn State electrical engineers have a way to simultaneously control diverse optical properties of dielectric waveguides by using a two-layer coating, each layer with a near zero thickness and weight. [15] Just like in normal road traffic, crossings are indispensable in optical signal processing. In order to avoid collisions, a clear traffic rule is required. A new method has now been developed at TU Wien to provide such a rule for light signals. [14] Researchers have developed a way to use commercial inkjet printers and readily available ink to print hidden images that are only visible when illuminated with appropriately polarized waves in the terahertz region of the electromagnetic spectrum. [13] That is, until now, thanks to the new solution devised at TU Wien: for the first time ever, permanent magnets can be produced using a 3D printer. This allows magnets to be produced in complex forms and precisely customised magnetic fields, required, for example, in magnetic sensors. [12]
Category: Digital Signal Processing

[2] viXra:1709.0061 [pdf] submitted on 2017-09-06 06:43:56

Computational Environments

Authors: George Rajna
Comments: 36 Pages.

Differences in software environments can cause problems when those experiments need to be reproduced—so scientists at the MDC in Berlin are seeking a solution. [21] Engineers at Australia's University of New South Wales have invented a radical new architecture for quantum computing, based on novel 'flip-flop qubits', that promises to make the large-scale manufacture of quantum chips dramatically cheaper-and easier-than thought possible. [20] A team of researchers from the U.S. and Italy has built a quantum memory device that is approximately 1000 times smaller than similar devices— small enough to install on a chip. [19] The cutting edge of data storage research is working at the level of individual atoms and molecules, representing the ultimate limit of technological miniaturisation. [18] This is an important clue for our theoretical understanding of optically controlled magnetic data storage media. [17] A crystalline material that changes shape in response to light could form the heart of novel light-activated devices. [16] Now a team of Penn State electrical engineers have a way to simultaneously control diverse optical properties of dielectric waveguides by using a two-layer coating, each layer with a near zero thickness and weight. [15] Just like in normal road traffic, crossings are indispensable in optical signal processing. In order to avoid collisions, a clear traffic rule is required. A new method has now been developed at TU Wien to provide such a rule for light signals. [14] Researchers have developed a way to use commercial inkjet printers and readily available ink to print hidden images that are only visible when illuminated with appropriately polarized waves in the terahertz region of the electromagnetic spectrum. [13] That is, until now, thanks to the new solution devised at TU Wien: for the first time ever, permanent magnets can be produced using a 3D printer.
Category: Digital Signal Processing

[1] viXra:1709.0039 [pdf] replaced on 2017-09-05 01:13:16

RSA Cryptography over Polynomials

Authors: Antoine Balan
Comments: 2 pages, written in french

Here is defined, following the RSA cryptosystem, a method of cryptography for polynomials over finite rings.
Category: Digital Signal Processing