Services offered in cloud computing are generally based on three standard models Infrastructure-as s service, Platform-as a service, and Software as a Service defined by the National Institute of Standards and Technology NIST. The reason for cloud existence is to resolve managing problems being faced for data that were excessively stored, either mandatory capacity was limited due to the infrastructure of the business, or large capacity that led to a wasted capital. For many firms where client and cultural competency have not got the strength to manage large data center environments and infrastructure, it would be wise to upload their files or data backups to another machine via internet, in order to concentrate more on the organizations primary objectives.
Biometric is the measurement of behavioral and physiological characteristics for the human, generally used either for identification or verification, but it is also can be used as a key for different security applications. Among different Among different biometric characteristics such as ears, voice, fingerprint, face, retina, iris, palm print, hand geometry, etc. The main aim of this paper is to design and build a pseudorandom number generator based on the retina for stream cipher cryptography. The proposed system is based on the use of hybrid technology that consists of the characteristics of human retina and logistic functions to generate keys with high-quality specifications in terms of unpredictability, randomization, and non-re-generation.
The NIST Package and correlation statistical tests prove that the generated keys are random, unpredictable, uncorrelated, and robust against different kinds of attack. The retina image keys are capable of passing most of the NIST statistical tests with high success rates also the average security test prove that the encrypted text is secure against entropy attack.
The Generational Garbage collection involves organizing the heap into different divisions of memory space in-order to filter long-lived objects from short-lived objects through moving the surviving object of each generation's GC cycle to The Generational Garbage collection involves organizing the heap into different divisions of memory space in-order to filter long-lived objects from short-lived objects through moving the surviving object of each generation's GC cycle to another memory space, updating its age and reclaiming space from the dead ones.
The problem in this method is that, the longer an object is alive during its initial generations, the longer the garbage collector will have to deal with it by checking for its reachability from the root and promoting it to other space divisions, where as the ultimate goal of the GC is to reclaim memory from unreachable objects at a minimal time possible.
This paper is a proposal of a method where the lifetime of every object getting into the heap will be predicted and will be placed in heap accordingly for the garbage collector to deal more with reclaiming space from dead object and less in promoting the live ones to the higher level. Characterization of a chaotic telecommunication laser for different fiber cavity lengths. Blockchain is a list of records called blocks which are linked through the use of cryptography.
Each block contains a cryptographic hash of the previous block, a timestamp and transaction data. A summary of all transactions are kept in a A summary of all transactions are kept in a Merkle tree root hash and stored as part of the header of a block.
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By design, blockchain is highly resistant to modification of data. The case study uses blockchain technology to deploy a digital voting system and tries to provide a more decentralized approach to digital voting. Voynich Manuscript solution proposed The glyph characters and words in the manuscript updated 20Sep The information given also works for most of the single occurrence VMS words. Additional codes, mostly Additional codes, mostly Group I codes, may be required for some.
My proposed solution is of the form of cryptoanalytic concept enumerated by Mary E. The Nature of the Substitution. These-fixes and sub-parts correspond with the six groups of codes shown and enumerated in the paper. My lists of Voynich Manuscript words found two or more times in the text or labels were gleaned from lists generated by Professor Stolfi.
View Comments. Libra Compendium. Comprehensive independant report on Libra, a digital asset initiated by Facebook and inspired by cryptocurrencies. Interesting in the Internet of things IoT has begun to grow rapidly since it deals with the everyday needs of humans and becomes dealing with a huge amount of personal information.
This expansion is accompanied by a number of This expansion is accompanied by a number of challenges; one of them is the need for solving the problem of security challenges by using algorithms with high security and the adversaries unable to attack them.
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But such algorithms need high computation power. On the other hand, the Internet of things has limited resources. Therefore, high security cryptosystem with low computation power is needed. The implementation results showed that this modification gives NTRU resistance against this attack. The presented scheme utilizes discrete wavelet transform DWT and can locate the pixels of malicious The presented scheme utilizes discrete wavelet transform DWT and can locate the pixels of malicious tampering if present.
The wavelet coefficients are considered for embedding authentication code that are encrypted with a secret key, ensuring high security.
The authentication binary code is embedded in a block of wavelet coefficients. The experimental results show that the proposed method can retain the image quality after watermarking process with minimum watermark payload and can achieve promising tampering detection. Read Free For 30 Days. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers.
Start Free Trial Cancel anytime. Latest Paper on Cryptography. Description: Latest Cryptographic Trend for having effective small size cryptographic content Effectively applied in Mobiles.
Jump to Page. Search inside document. There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting passwords.
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One essential aspect for secure communications is that of secret key cryptography, which the focus of this paper. With secret key. First, we give theoretic results which renders it more efficient and easier to Advance Halftone Secure Secret Sharing Scheme with Error Diffusion Technique Along with Adaptive Secure Confidential Key in the Visual Cryptography free download Abstract In the area of medicine, storing medical images of the patient in a very secure manner becomes to be toughest challenge. It provides higher level of security with lesser key size compared to other Cryptographic techniques.
This paper provides an overview of ellipticcurves and their use in Hyperchaos based Cryptography : New Seven Dimensional Systems to Secure Communications free download ABSTRACT The growth of technology and the emphasis on privacy have intensified the need to find a fast and secure cryptographic method. As chaotic signals are usually noise like and chaotic systems are very sensitive to the initial condition, they can be used in LPN in Cryptography : an Algorithmic Study free download Abstract The security of public-key cryptography relies on well-studied hard problems, problems for which we do not have efficient algorithms.
Factorization and discrete logarithm are the two most known and used hard problems. This cryptosystem is one of a few cryptosystems which A Survey on ACO and Cryptography Techniques for Cloud Computing Security and Privacy free download Abstract Cloud computing is a technology evolution of adoption of virtualization, service oriented architecture and utility computing over the internet including applications, platform and services.
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Cloud security and privacy is a biggest concern about cloud computing, Transfer of Data with Secured Methods like Image Elliptic Curve Cryptography and Steganography free download Abstract: Securing information is a testing issue in todays time. Remembering it we have proposed another procedure which is the mix of Elliptic Cryptography and picture Steganography improved with another safe component for era of another, hearty security Application of differential cryptography to a GN authentication hierarchy scheme free download Abstract.
Starting from the classical differential cryptography , we describe how to construct particular parameters for elliptic curves with application to the domain of information security.
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These results conclude to a key used on symmetrical encryption. Sci, - science. Quantum computers are able to destroy most, if not absolutely all conventional cryptosystems that are widely used in practice, specifically, systems based on the problem of factoring integers eg, RSA. Some cryptosystems like RSA system with 4 bit keys are Crafting Certified Elliptic Curve Cryptography Implementations in Coq free download Abstract Elliptic curve cryptography has become a de-facto standard for protecting the privacy and integrity of internet communications.
To minimize the operational cost and enable near-universal adoption, increasingly sophisticated implementation techniques have A comprehensive investigation of visual cryptography and its role in secure communications. In fact, VC is a powerful technique that combines the notions of perfect ciphers and secret sharing in cryptography. VC takes an image secret An investigation of visual cryptography and its applications in secure communications free download Abstract Secret sharing approach and in particular Visual Cryptography VC try to address the security issues in dealing with images.
The first part of the text includes a survey of historical and modern examples of encryption in art, writing, and music to demonstrate the merit and purpose of cryptography in creative media. Security and confidentiality of data on computer networks today become a Secured Mobile Biometric Authentication using 2, 2 Visual Cryptography free download Abstract-Biometrics is the measurement and statistical analysis of peoples physical and behavioural Characteristics.
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Biometrics deals with automated method of identifying a person or verifying the identity of a person based on the physiological or behavioral characteristic, Generating elliptic curves for cryptography free download Abstract. Hence, a secure communication sessions must be provided. In this paper, we describe a method which can be used to share an image with at least colours into two meaningful cover images.
We use a A Short Survey of Visual Cryptography and Secret Image Sharing Techniques and Applications free download Abstract: Cryptography , in general, is a process of transforming original information into a format such that it is only read by the desired recipient. It had a very considerable turning point when two researchers from Stanford, Whitfield Diffie and Martin Hellman, published the paper New Directions in Cryptography in Some of the methods are previously known while others may be new to the Progressive Visual Cryptography with Friendly and Size Invariant Shares free download Abstract: Visual cryptography is an important data encoding method, where a secret image is encoded into n pieces of noiselike shares.
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