cryptography 2019



Cryptography is the science of secret writing with the intention of keeping the data secret. Cryptanalysis, on the other hand, is the science or sometimes the art of breaking cryptosystems. These both terms are a subset of what is called as Cryptology

Notes on Primality Testing And Public Key Cryptography Part 1: Randomized Algorithms Miller Rabin and Solovay Strassen Tests
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Prime numbers have fascinated mathematicians and more generally curious minds for thousands of years. What is a prime number Well, 2, 3, 5, 7, 11, 13,, 9973 are prime numbers. The defining property of a prime number p is that it is a positive integer p≥ 2 that

Genus two isogeny cryptography
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We study (l, l)-isogeny graphs of principally polarised super singular abelian surfaces (PPSSAS). The (l, l)-isogeny graph has cycles of small length that can be used to break the collision resistance assumption of the genus two isogeny hash function suggested by

Generalized Visual Cryptography Scheme with Completely Random Shares
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ABSTRACT A modification of the standard Naor-Shamir scheme for visual cryptography and visual secret sharing is proposed. Better statistical properties of shares are obtained at the cost of the slightly worse quality of reconstructed images. Advantages and disadvantages of

A Methodology Based on Steganography and Cryptography to Protect Highly Secure Messages
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Steganography and cryptography are very important techniques used in A cryptographic key generation scheme for multilevel data security
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In 1982, and Taylor proposed an elegant solution to rhe partially ordered multilevel key distribution problem, using a cryptographic approach. Since then, continuing research has been conducred to try to realize and simplify their scheme. Generally speaking, there are

Towards achieving data security with the cloud computing adoption framework.
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Offering real-time data security for petabytes of data is important for Cloud Computing. A recent survey on cloud security states that the security of users data has the highest priority as well as concern. We believe this can only be able to achieve with an approach that is

Data security model for cloud computing
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With the development of cloud computing, Data security becomes more and more important in cloud computing. This paper analyses the basic problem of cloud computing data security . With the analysis of HDFS architecture, we get the data security requirement of cloud

Data security in cloud computing with elliptic curve cryptography
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Cloud computing is one of todays hottest research areas due to its ability to reduce costs associated with computing while increasing scalability and flexibility for computing services. Cloud computing is Internet based computing due to shared resources, software and the protection of data from accidental or malicious modification, destruction, or disclosure (FIPS); the science and study of methods of protecting data in computer and communications systems against unauthorized disclosure, transfer, delay, modifications, or

Privacy and Data Security Risks in Cloud Computing.
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In recent years, cloud computing has emerged as one of the fastest-growing segments of the information technology industry. The ability to leverage economies of scale, geographic distribution,



Report on post-quantum cryptography
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In recent years, there has been a substantial amount of research on quantum computers machines that exploit quantum mechanical phenomena to solve mathematical problems that are difficult or intractable for conventional computers. If large-scale quantum computers are

Threshold Cryptography with Tendermint Core
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Threshold cryptography provides protocols and techniques for building secure distributed systems and services that perform cryptographic operations while tolerating multiple faults and security breaches occurring at the same time. Threshold cryptosystems are operated by

Cryptography and protocols in hyperledger fabric
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Page 1. Cryptography and Protocols in Hyperledger Fabric Elli Androulaki, Christian Cachin, Angelo De Caro, Andreas Kind, Mike Osborne, Simon Schubert, Alessandro Sorniotti, Marko Vukolic and many more IBM Research Zurich Real-World Cryptography Conference 2017 Page

A survey on quantum cryptography and quantum key distribution protocols
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As quantum computing matures, its going to bring unimaginable increases in computational power along with the systems we use to protect our data (and our democratic processes) will become even more vulnerable. It is often said that the power of quantum computer comesThis is a reworking of my earlier book Cryptography : An Introduction which has been available online for over a decade. In the intervening years there have been major advances and changes in the subject which have led me to revisit much of the material in this book. In

An Algebraic Approach to Multilinear Maps for Cryptography (18w5118)
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1 Objectives A main goal of the BIRS workshop An Algebraic Approach to Multilinear Maps for Cryptography was to bring together cryptographers, number theorists and arithmetic geometers to discuss problems of central importance in electronic communication. The focus

Classic McEliece: conservative code-based cryptography
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The NTS-KEM submission delares a US patent application and a granted UK patent describing a method by which a McEliece ciphertext be shortened and have the same security as the full length McEliece ciphertext. The same method is used in NTS-KEM but in

Advanced Cryptography : Promise and Challenges.
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Page 1. Advanced Cryptography : Promise and Challenges Shai Halevi, IBM Research ACM-CCS, October 2018 Page 2. Whats Advanced Cryptography Cryptography beyond encryption, signatures Protecting computation, not just data Page 3. Whats Advanced

Mathematics of isogeny based cryptography
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Let k an algebraically closed field, the projective space Pn ( k) is the set of non-null (n + 1)-tuples (x0;:::;xn ) P kn modulo the equivalence relation (x0;:::;xn ) $( x0;:::; xn ) with P k nf0g A class is denoted by (x0 : ¡¡¡: xn ) Luca De Feo (IBM Research) Maths of Isogeny Based Crypto

Blockchain, cryptography , and consensus
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Page 1. Blockchain, cryptography , and consensus Christian Cachin (with Elli Androulaki, Angelo De Caro, Andreas Kind, Mike Osborne, Simon Schubert, Alessandro Sorniotti, Marko Vukolic and many more) IBM Research Zurich June 2017 Page 2. 2 Connected markets ? Networks connect

Cloud Cryptography : Theory, Practice and Future Research Directions.
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Cloud computing, a convenient way of accessing services, resources and applications over the Internet, shifts the focus of industries and organizations away from the deployment and day-to-day running of their IT facilities by providing an on-demand, self-service, and pay

Intelligent Tutoring System for Cloud Network Security Based on Biometrics Cryptography
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ABSTRACT Intelligent Tutoring System (ITS) is becoming more famous through over the world, it impacts the view to appear obviously actually that anybody could teach at any place in whenever. Without the aid of intelligent tutoring system, the learning questions students

Cryptography : A comparative analysis for modern techniques
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Cryptography plays a vital role for ensuring secure communication between multiple entities. In many contemporary studies, researchers contributed towards identifying best cryptography mechanisms in terms of their performance results. Selection of cryptographic

Hardware API for Lightweight Cryptography
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In this paper, we define the Lightweight Cryptography (LWC) Hardware Application Programming Interface (API) for the implementations of lightweight authenticated ciphers, hash functions, and cores combining both functionalities. In particular, our API is intended to

Security analysis of elliptic curve cryptography and RSA
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Internet has revolutionized the data communication systems. It provides platform to get the information exchanged quickly amongst the communicating parties at the same time it also provides opportunity to adversary to attack on unsecured information. In order to provide

Cryptography technique with modular multiplication block cipher and playfair cipher
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There are many data security techniques like a cryptography , there are many algorithm like a MMB (Modular Multiplication Block Cipher) and Playfair Cipher. MMB operates using 128- bit plaintext, but it also uses 32-bit subblock MMB text (x0, x x x3) and 32-bit key

On Lattices for Cryptography
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Learning with Errors [Reg05]. The LWE problem defines a distribution over Zn q Zq, where the samples are of the form (a, b=< s, a>+ e mod q), for s∈ Zn qa fixed element called the secret, a∈ Zn qa uniformly random element, and e∈ ψ sampled from an error distribution ψ

A modified symmetric key cryptography method for secure data transmission
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Cryptography is necessary when communicating over any untrusted medium, like internet. It is possible to access and modify by unauthorized persons while transferring the data from one to another. Cryptography plays a significant role in the field of information security

Multi secret image sharing scheme based on DNA cryptography with XOR
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In the digital era protecting digital media information is becoming more necessary. The source of digital medias growth can be linked to the wealth of information provided by the internet. Image encryption is the encrypting technologies of time-honored cryptography are

Notes on Primality Testing and Public Key Cryptography . Part I: Randomized Algorithms, Miller Rabin and Solovay Strassen Tests
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Prime numbers have fascinated mathematicians and more generally curious minds for thousands of years. What is a prime number Well, 1 1 , 9973 are prime numbers. The defining property of a prime number p is that it is a positive integer p≥ 2 that

Robust data security for cloud while using third party auditor
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Cloud computing has been envisioned as the next-generation technology of IT industries. The Cloud is a platform where data owner remotely store their data in the cloud to enjoy the high quality applications and services. The client or data owner send their data to data

Enhancing data security using video steganography
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Information security has become the area of concern as a result of widespread use of communication medium over the internet. This paper focuses on the data security approach when combined with encryption and steganographic techniques for secret communication





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