Knowledge in Information & coding theory
java android program
android
Ashish Nayak
An Introduction to Formal Languages and Automata
An Introduction to Formal Languages and Automata Linz 3rd edition
tulika goyal
THEORY OF COMPUTER SCIENCE
Topics discussed in the attatchments are as follows -Design PDA CFG to CNF Simplification of CFG-Part 1 Simplification of CFG-Part 2 Simplification of CFG-Part 3 NFA to DFA NFA with null transitions to NFA without null transitions Minimization of DFA Mealy to Moore Moore to Mealy
Build script
Top-level build file where you can add configuration options common to all sub-projects/modules.
programming in c
tutorial using c
dilip Sahukar
Notes of XML
Basics of XML
Shashwat Kotamkar
"Center of Excellence" - Training Institute | Evolet technologies | Coimbatore
evolet technologies " Center of Excellence" a best Training institute in Coimbatore, We provides the following courses, Such as, PHP, JAVA/Advanced JAVA, python, .Net, aws cloud Certification Training Course‎, Embedded System, Internet of Things(IOT), Advance Digital Marketing Course with certification from Google. It’s been our mission to provide the highest quality training, resources and student services to meet the real needs of the digital marketing industry. All the courses in Evolet technologies are designed and delivered by practicing in real time projects, who know what it takes to succeed at the job and dedicated to delivering the best training for Evolet technologies students. Call Us for Demo Class/Career Growth: 7778607444 - Nithya WHO WE ARE We are a global IT solutions provider offering various customized solutions for small, medium and large businesses. We provide end to end services in the areas of software development, web designing, web development, SEO – Search Engine Optimization and other Software training solutions and services. With our industry experience and technical expertise we offer quality driven delivery model that is progressive in nature. We take pride in our professional expertise and our ability to make the web and technology work for you, thus enhancing your productivity and take your business to new heights. We take full advantage of the web and make it work for you. Our strength lies with our superior knowledge of industry verticals, which help us deliver value to our customers through our quality solutions and services. Our Strength: Having its roots at Bangalore, We are successfully spreading our wings over South India. Now operating out of two branch offices, Evolet has been able to deliver its promises in time to its Clients. This trust gives the impetus that drives the teams at Evolet. Our team of talented and experienced professionals are capable to meet even the most difficult and complex requirement within short span of time. We have all the necessary resources and expertise in place to help you design, develop, deploy, and maintain robust applications throughout the software development lifecycle. The team at Evolet has developed and implemented various solutions which meets our client’s requirements and have delivered within time and are ready to work 24/7 using the full potential of the latest technologies. Visionary and Dynamic Management of Evolet Technologies is passionate about its operations and team.We have successfully spread our wings in shot span of time to a long track record and ever green relationships with its clients. Interface design (methodologies) The functionality that an application provides to users is important, the way in which it provides that functionality is just as important. An application that is difficult to use won't be used. It won't matter how technically superior your software is or what functionality it provides, if your users don't like it they simply won’t use it. So never underestimate the value of user interface design nor of usability. But at Evolet Technologies we first concentrate on User interface, regardless of functionality and technology. Our methodologies have helped developers meet budgets, schedules and have satisfied our entire client's with a user interface application. Why go for User interface applications: User interface design is important for several reasons: First of all the more intuitive the user interface the easier it is to use, and the easier it is to use and the less expensive to use it. But at Evolet Technologies we first concentrate on User interface, regardless of functionality and technology. Our methodologies have helped developers meet budgets, schedules and have satisfied our entire client's with a user interface application. Features: Best Lab Best Faculty Low Cost Services 100% Placement
Center of Excellence Evolet technologies
Matlab code to add, substract, dot,cross product of two vectors.
Matlab is the best platform to simulate any signal processing. Matlab is very helpful for analog electronics.
Amit joshi
Matlab code to convert one coordinate system to another.
Matlab is best for simulation purpose. It is used in almost every field of engineering.
Arduino code for bluetooth car.
Arduino is the best platform to perform projects on robotics. It is very good micro controller.
Shubham garg
Adiantum: Encryption for everyone!
“Everyone should have privacy and security, regardless of their phone’s price tag.” — as said by Eugene Liderman, Director of Mobile Security Strategy at Android Security and Privacy Team. In today’s era, where all that matters is ‘data’, this quote seems pretty logical. This safer internet day, mainly on 5th Feb Google surprised us with a bunch of announcements and it’s valuable #SecurityCheckKiya campaign throughout India. But, the biggest announcement which grabbed everyone’s attention was the introduction of ‘Adiantum’: A new form of encryption exclusively for those low-end devices which do not have specialized hardware to use current prevailing methods for storage encryption. Storage encryption protects your data if your phone falls into someone else’s hands. The main motive for this innovation was to ensure that ‘all devices can be encrypted’. Being the dignified and loyal owner of Android, Google apprehended the primary concern of data-security (storage encryption) on low-end devices. Since, here it consumes a lot of resources to complete thereby making the device slow, and in other cases to the point of unusable(hanged). Thus, to resolve this issue, the idea of Adiantum came into being. It is an innovation in cryptography designed to make storage encryption efficient without cryptographic acceleration Originally, this terminology comes from the genus of ferns, which represents sincerity & discretion. Nowadays, Android offers storage encryption using the Advanced Encryption Standard (AES) i.e., it supports AES-128-CBC-ESSIV for full-disk encryption and AES-256-XTS for file-based encryption. Mostly new devices have support for AES using the ARM v8 cryptographic extensions. Moreover, Google has made it mandatory for the device manufacturers to involve AES encryption for all the Android devices above 6.0 or later, exempting the devices with poor performance (50 Mib/s and below). It is here to be considered that Android not only includes the latest premium, flagship and mid-range devices but a major portion is comprised of the entry-level devices involving smartwatches and Android TVs designed mainly with the low-end processors like ARM Cortex-A7 to attract a large pile of consumers with minimum budget. But, these devices do not provide hardware support for AES with such low processors. Hence, AES implementation on these devices resulted in poor user experience, long app launch time and the device generally feels too slow. To change this scenario and to empower all devices with encryption abilities, the need for new encryption form was soon felt, which further originated in the form of Adiantum. Adiantum has been designed to provide efficient storage encryption without hardware acceleration, empowering the devices with much more security than their predecessors. It will also guarantee data security to next billion people coming online for the 1st time. Now, let’s get to know how this concept solves our issues? In HTTPS (Hypertext transfer protocol secure) encryption, ChaCha20 stream cipher is used since it executes much faster than AES without compromising with security in the unavailability of hardware acceleration. The main reason behind such fast execution is because of its reliance mainly on native CPU support: addition, rotation, and XOR operations. Hence, in 2014 Google selected ChaCha20 along with the poly1305 authenticator, which is also fast in software for a new TLS cipher suite to secure HTTPS connections. ChaCha20-Poly1305 has been standardized as RCF7539, and it greatly improves performance on the devices that lack AES instructions. But, the main challenge is faced with disk and file encryption where the data is organized in sectors on storage devices. With every request by Filesystem to read/write a sector on the device, the encryption layer intercepts the request which involves the conversion of 4096-byte plaintext to 4096-byte ciphertext and vice-versa. However, for implementing RCF7539 i.e., ChaCha20-poly1305 an additional amount of space is required for cryptographic nonce (an arbitrary number that can be used just once in a cryptographic communication) and message integrity information. There are software techniques for finding places to store this extra information, but they reduce efficiency and can impose significant complexity on filesystem design. According to Google, Adiantum allows us to use the ChaCha stream cipher in a length-preserving mode, by adapting ideas from AES-based proposals for length-preserving encryption such as HCTR and HCH. On an ARM Cortex-A7 processor, Adiantum decrypts 4096-byte messages at 10.6 cycles per byte, over five times faster than AES-256-XTS, with a constant-time implementation. This is evident from the below-given graph: - In Android Q, Adiantum will be part of the Android platform, the successor to Android Pie that’s due later this year. Moreover, Google says AES is still the faster encryption standard when hardware support exists and will continue to be a requirement for phones that support it, which means AES must still be used where its performance is above 50 MiB/s. “Our hope is that Adiantum will democratize encryption for all devices,” Eugene Liderman, Director of Mobile Security Strategy at Android Security and Privacy Team says”. Just like you would not buy a phone without text messaging, there will be no excuse for compromising security for the sake of device performance.”
Ashutosh Aneja
Notice- to conduct holi in the premise
Orderly conduct of holi celebration in the premise.
NSUT, New Delhi