Digital Signal Processing

1704 Submissions

[5] viXra:1704.0400 [pdf] submitted on 2017-04-30 08:09:55

Secure Sharing of Personal Health Records in Cloud Using Attribute Based Encryption

Authors: Yogita Vaishnani1, Chintan Patel2, Sunil Vithlani3, Priyank Bhojak4
Comments: 8 Pages.

In emerging world of cloud computing gives wide range of functionalities. Personal Health Record (PHR) enables patients to store, share, and access personal health data in centralized way that it can be accessible from anywhere and anytime. One major problem in the existing work is the cloud to manage and secure data from the unauthorized persons. However, combining of PHR with cloud gives new horizons for medical eldest to be digitalized in centralized storage but it comes with major concern as security. There are many researchers are work in securing PHR which stored in cloud using nave approaches but it’s not enough to secure it. So there is need for new technology as Attribute based Encryption that secure PHR with providing many functionalities such as accountability, revocation of user, searching over encrypted les, delegation of other user access, searching over encrypted les, multi-authority and many more.
Category: Digital Signal Processing

[4] viXra:1704.0346 [pdf] submitted on 2017-04-26 10:26:25

Performance of Computer Components

Authors: George Rajna
Comments: 34 Pages.

NIST scientists have developed a novel automated probe system for evaluating the performance of computer components designed to run 100 times faster than today's best supercomputers and consume as little as Adding to strong recent demonstrations that particles of light perform what Einstein called "spooky action at a distance," in which two separated objects can have a connection that exceeds everyday experience, physicists at the National Institute of Standards and Technology (NIST) have confirmed that particles of matter can act really spooky too. [17] How fast will a quantum computer be able to calculate? While fully functional versions of these long-sought technological marvels have yet to be built, one theorist at the National Institute of Standards and Technology (NIST) has shown that, if they can be realized, there may be fewer limits to their speed than previously put forth. [16] Unlike experimental neuroscientists who deal with real-life neurons, computational neuroscientists use model simulations to investigate how the brain functions. [15] A pair of physicists with ETH Zurich has developed a way to use an artificial neural network to characterize the wave function of a quantum many-body system. [14] A team of researchers at Google's DeepMind Technologies has been working on a means to increase the capabilities of computers by combining aspects of data processing and artificial intelligence and have come up with what they are calling a differentiable neural computer (DNC.) In their paper published in the journal Nature, they describe the work they are doing and where they believe it is headed. To make the work more accessible to the public team members, Alexander Graves and Greg Wayne have posted an explanatory page on the DeepMind website. [13]
Category: Digital Signal Processing

[3] viXra:1704.0267 [pdf] submitted on 2017-04-21 10:15:27

Soft Starter of Single Phase Pump Motor

Authors: Rai Shailesh, Dubey Jayesh, Gupta Ajay
Comments: 2 Pages. Thank You for providing us platform to explore our project idea.

In single-phase induction motor of ratings beyond a certain limit of withstand take very large currents and low powe factor while being started directly from a 1-phase supply. In order to mitigate the adverse effects of starting torque transients and high inrush currents in induction motors, a popular method is to use electronically controlled soft-starting voltages utilizing TRIAC. Normally soft-starters are used for avoiding this problem and to achieve smooth starting of large capacity induction motors. Soft starters use ac voltage controllers to start the induction motor and to adjust its speed. The performance of a voltage controlled large induction motor soft starter has been improved, resulting in nearly perfect current and torque profiles. Soft starters are used as induction motor controllers in compressors, blowers, fans, pumps, mixers, crushers and grinders, and many other applications. Starting torque pulsations are eliminated by triggering back-to-back-connected TRIAC at proper points on the first supply voltage cycle. The soft starter is connected in motor drive during the starting condition only and once the motor get its rated speed then the soft starter is disconnected from the main motor system so that the motor get protected.
Category: Digital Signal Processing

[2] viXra:1704.0251 [pdf] submitted on 2017-04-20 04:18:06

Universal Remote Control

Authors: Sheshmani Yadav, Aditya Asthana, Vishal Jain, Sumit Salunkhe
Comments: 3 Pages.

With most pieces of consumer electronics, from camcorders to stereo equipment, an infrared remote control is always included. Today we all are using mobile phones, and in each mobile devices there is one common communication media through which devices communicate and that common platform is Bluetooth. This Paper connects these two platforms to create a more simplified process to bridge the gap between modern devices.
Category: Digital Signal Processing

[1] viXra:1704.0034 [pdf] submitted on 2017-04-03 17:19:23

From One to Many: Synced Hash-Based Signatures

Authors: Santi J. Vives Maccallini
Comments: 16 Pages.

Hash-based signatures use a one-time signature (OTS) as its main building block, and transform it into a many-times scheme, to sign a larger number of signatures. In known constructions, the cost and the size of each signature increases as the number of needed signatures grows. In real-world applications, requiring a significant number of signatures, the signatures can get quite large. As a result, it is usually believed that post-quantum signatures based on hashes need more computation and much larger sizes than classical signatures. We introduce a construction to challenge that idea: we show that it is possible to construct a many-times signatures scheme that is more efficient than the OTS it is built from, rather than less. We study the generation of signatures in conjunction with a blockchain, like bitcoin. The proposed scheme permits an unlimited number of signatures. The size of each signatures is constant and the same as in the OTS. The verification cost starts the same as in the OTS and decreases with each new signature, becoming more efficient on average as the number of signatures grows. Keywords: many-time signatures, hash, post-quantum cryptography, authentication, blockchain, bitcoin, optimization.
Category: Digital Signal Processing