RSA

Fondé sur une enquête ethnographique et sur des données quantitatives, cet article traite de la construction sociale du rapport à l’emploi chez des mères seules allocataires du Revenu de solidarité active. Celles-ci peuvent avoir du mal à accéder à l’accompagnement professionnel, alors même que les travailleuses qui les accompagnent cherchent à leur inculquer une « féminité active ». Certaines allocataires voient ainsi leurs rapports à l’emploi disqualifiés : elles sont renvoyées vers un traitement familialiste tout en ayant conscience de ne pas satisfaire aux attendus de la féminité active. D’autres allocataires, souvent plus diplômées, parviennent malgré tout à accéder à l’accompagnement professionnel, ce qui leur permet de maintenir un rapport espéré à l’emploi et de s’approprier sélectivement la féminité active.

En este documento se explorará el método de factorización de números semiprimos a través
del método de Conjuntos de Parábolas Concéntricas (𝐶𝑃𝐶).

El documento realiza un análisis de datos a partir de varios conceptos iniciales, y va
profundizando en los límites de los conceptos y Teoremas de manera incremental, hasta
elaborar la ecuación redefinida de 𝐶𝑃𝐶.

En 2011, le rapport du Comité national d'évaluation du RSA (CNE) estime que 49% de bénéficiaires potentiels du RSA ne le demandent pas : 35% pour le RSA socle et 68% pour le RSA activité. On constate donc un important taux de non-recours au RSA 1. Par non-recours on entend le fait de ne pas obtenir les prestations ou les services publics auxquels on est éligible (Math & Van Oorschot, 1996). Ce phénomène n'est pas une particularité du RSA, il est structurel et se retrouve dans beaucoup de prestations sociales (Odenore, 2012 ; Warin, 2006). Il est en partie lié au temps nécessaire d'installation, propre à la mise en oeuvre d'un nouveau dispositif. La montée en charge du revenu minimum d'insertion (RMI) avait, par exemple, pris trois à quatre ans. Pour donner un exemple, une enquête avait estimé le taux de non-recours au RMI à 53% (Terracol, 2004). La notion de non-recours renvoie au différentiel existant entre une population potentiellement éligible et la population effectivement bénéficiaire. Elle met en exergue le fait qu'une offre publique, élaborée pour répondre à un besoin identifié par les pouvoirs publics, ne parvient pas à atteindre l'ensemble de ses destinataires et ne répond donc que partiellement au problème qu'elle entend résoudre. Le fait de ne pas recourir à ses droits constitue, en soi, un rapport particulier à l'offre publique et aux institutions qui la servent. Comprendre le non-recours contribue à « rendre audible » (Mazet, 2010) les représentations et les opinions qu'a une partie de la société sur l'offre publique. Pour l'action publique, ce phénomène de non-recours induit non seulement un enjeu gestionnaire d'effectivité de l'offre de prestations monétaires (impacts prévus/impacts réels), mais également une question politique, aussi bien quand il signale un désintérêt ou un désaccord que lorsqu'il est l'effet d'impossibilités (Warin, 2010). Le non-recours interroge donc fondamentalement l'offre publique et intervient comme un indicateur d'évaluation de la performance et de la pertinence d'un dispositif, mais aussi du système administratif qui le déploie. Dans les faits, le non-recours restreint l'impact des politiques visant à réduire la pauvreté. L'accumulation de situations de non-recours aux prestations et aux aides sociales s'analyse en effet comme l'une des causes aggravant les situations de pauvreté (Fragonard et al., 2012 ; Warin, 2009, 2010a). 1 Des estimations du nombre de foyers bénéficiaires de RSA ont été faites en 2007 par un groupe de travail composé de la Direction des statistiques, des études et de la recherche (DSER) de la Caisse nationale d'allocations familiales (Cnaf), de la Direction de la recherche des études, de l'évaluation et des statistiques (Drees) et la Direction général du trésor (DGT).

Cloud database are derivatives of Cloud computing. At present, most medical institutions store data in cloud database. Although the cloud database improves the efficiency of use, it also poses a huge impact and challenge to the secure storage of data. The article proposes a hybrid algorithm to solve the data security problem in the hospital cloud database. First, the AES algorithm is improved. The improved algorithm is called P-AES algorithm. The P-AES algorithm is then combined with the RSA algorithm, called a hybrid algorithm. The experimental results show that the hybrid encryption algorithm has the advantages of fast encryption and decryption speed, high security, good processing ability for longer data, and can solve the data security problem in cloud database to a certain extent. The algorithm has been successfully applied to hospital information management system.

Due to the rapid growth of online transactions on the Internet, authentication, non-repudiation and integrity are very essential security requirements for a secure transaction. To achieve these security goals, digital signature is the most efficient cryptographic primitive. Many authors have proposed this scheme and prove their security and evaluate the efficiency. In our paper, we present comprehensive study of conventional digital signature schemes based on RSA, DSA and ECDSA (Elliptic Curve Digital Signature Algorithm) and the improved version of these scheme.

Cryptography is the art and science of keeping massages secure. It is the study of techniques related to aspects of information security such as information privacy, integrity, authentication and non-repudiation. Cryptography is almost synonymous with  encryption i.e. the conversion of plain text to a cryptic text to secure it against unauthorized users. Encryption techniques are typically divided into two generic types: symmetric key encryption and asymmetric key encryption. Encryption methods in which both the sender and receiver share the same key are referred to as symmetric key encryption schemes. Encryption methods in which encryption and decryption are performed using the different keys, one a public key and one a private key are referred to as asymmetric key encryption schemes. This paper provides a performance comparison between four popular and commonly used encryption algorithms: DES, 3DES, AES, and RSA. DES, 3DES, and AES are symmetric key encryption algorithms while as RSA is an asymmetric key encryption algorithm.

With the major advancements in the field of technology and electronics, one persistent obstacle has proven to be one of the major challenges, namely : Data Security. To get connected securely and quickly through the electronic data transfer through the web, the data should be encrypted. Encryption is the process of transforming plain text into ciphered-text, which cannot be understood or altered easily by undesirable people. It can also be defined as the science that uses mathematics in data encryption and decryption operations. In this paper, we discuss several important algorithms used for the encryption and decryption of data in all fields, to make a comparative study for most important algorithms in terms of data security effectiveness, key size, complexity and time, etc. This research focused on different types of cryptography algorithms that are existing, like AES, DES, TDES, DSA, RSA, ECC, EEE and CR4…etc.

This paper reports about the survey of various techniques available in an encryption and also in compression technique. It is mainly analyzing the existing encoding and compressed cryptosystem together as a literature survey. It is also discussed about the security issues of using various encryption technique and compression technique to reduce the size of plain text as well as to increase the transmission speed of plain text from one end to other end. This survey analyses several encryption technique, compression technique and also various literature paper so that it provides an idea for efficient integrated methods using compressed crypto system for future work .

To overcome the problems faced in symmetric key algorithms, people have chosen Asymmetric Key algorithms for communication. Communication with Asymmetric algorithms will give us transmission of information without exchanging the key.
Public-key cryptography refers to a cryptographic system requiring two separate keys, one of which is secret and one of which is public. Public-key cryptography is widely used. It is an approach used by many cryptographic algorithms and cryptosystems. It underpins such Internet standards as Transport Layer Security (TLS), PGP, and GPG. RSA and Diffie–Hellman key exchange are the most widely used public key distribution systems, while the Digital Signature Algorithm is the most widely used digital signature system.
In this report we are mainly concentrating on some asymmetric algorithms which are mostly used. They are RSA cryptosystem and ElGamal Cryptosystem. It also gives brief mathematical explanations. The RSA algorithm is the most commonly used encryption and authentication algorithm and is included as part of the Web browsers from Microsoft and Netscape.RSA is an algorithm for public-key cryptography that is based on the presumed difficulty of factoring large integers, the factoring problem.. The RSA algorithm involves three steps: key generation, encryption and decryption. In this we mainly concentrate on algorithms for Primality Testing, Extended Euclidian’s algorithm, Modular Exponentiation solving algorithm, etc. ElGamal System is a public-key cryptosystem based on the discrete logarithm problem. It consists of both encryption and Signature algorithms. ElGamal encryption is used in the free GNU Privacy Guard software, recent versions of PGP, and other cryptosystems. ElGamal encryption consists of three components: the key generator, the encryption algorithm, and the decryption algorithm. In this we concentrate on the algorithms Cyclic Groups, Modular Exponentiation solving algorithms etc.

Cryptography is derived from a Greek word which means the art of protecting information by converting it into an unreadable format. In order to prevent some unwanted users or people to get access to the data cryptography is needed. RSA is highly secure algorithm but have high computation time, so many researchers applied various techniques to enhance the speed of an RSA algorithm by applying various logic. This paper does the detailed study about various techniques and represents the summarized results.

Questo lavoro è diviso in due parti. Nella prima vi è uno studio dei concetti di privacy by design e by default introdotti col GDPR. Viene presentato uno strumento (questionario) in grado di analizzare la compliance al regolamento  e vengono presentate le principali tecniche in tema di security.
Nella seconda parte viene analizzata da un punto di vista matematico la crittografia omomorfica, approfondendo gli schemi RSA, Paillier e Gentry.

This report resumes my 6 months end-of-studies internship at Alcatel-Lucent International as an Ethical Hacker for connected objects in the Device IOT Excellence Center.
It begins with briefly describing Alcatel-Lucent, its history, current status, and future plans. Then it continues to describe the Internet of things’ evolution and future estimations. Later on, I describe my internship environment, and proceed to summarize my missions and achievements from July to December 2015. These includes hacking some connected devices, analyzing the security of their protocols (Z-Wave, Sigfox, Lora, and Bluetooth), attacking the z-wave protocol (most used protocol in home automation). It also includes listing some of the existing Z-wave capable devices in the market today, their prices, advantages and limitations.
I also describe additional tasks and duties that I was in charge of, like scanning the internal network using the cyber security tool “Qualys”, hardening the servers’ security configuration using a “OS Hardening” solution, and organizing a 24 hours Hackathon.
At last, I finish up with talking about the experience I got, and how this internship exceeded my expectations and strained my skills.

Coba fikirkan hal apa yang tidak dapat diretas hari ini ? Apakah demikian juga halnya dahulu ? apakah esok dan masa depan kita masih akan terus mengalami semua kekacauan ini ? Coba jawab dalam diri anda berapa banyak informasi yang anda ijinkan untuk diketahui dan tidak oleh oranglain, ada beberapa cara agar tetap bisa menjaga rahasia yang kita miliki dalam era teknologi serba canggih ini. Tidak ada yang benar-benar aman di dunia maya, sudah marak terjadi aksi pembobolan bank melalui saluran internet, peretasan akun internet juga hal-hal yang bersifat pribadi dengan mudah dicuri dan disebarkan oleh pihak-pihak yang tidak bertanggung jawab secara sengaja dan tidak. Lalu apakah kita akan membiarkan hal ini terus terjadi ? Tetaplah berhati-hati, pada buku ini akan dibahas hal mengenai sandi namun penuh dengan kata-kata/kalimat yang mudah dimengerti, bagaimana anda dapat membuat sandi anda sendiri, merusak dan bahkan meretasnya. Dan untuk yang lebih menarik akan dibahas mengenai apa dan bagaimana sandi RSA melakukan enkripsinya.

Odin Hjemdal, Antonio Roazzi, Maria da Graça B. B. Dias and Oddgeir Friborg
Abstract
Background: The resilience construct is of increasing interest in clinical and health psychology. The Resilience
Scale for Adults (RSA) is a measure of protective factors. The evidence supporting its construct validity is good,
however evidence of cross-cultural validity is modest.
The present study explored the factorial invariance of the RSA across a Brazilian and a Norwegian sample, as well as
the construct validity in the Brazilian sample.
Methods: The Brazilian sample (N = 222) completed the Hopkins Symptom Check List-25 (HSCL-25), the Sense of
Coherence (SOC), and the RSA. The Norwegian sample (N = 314) was included in order to examine the factorial
invariance.
Results: The results indicated that the latent constructs of the RSA (its primary factors) are the same in the
Brazilian sample as in the Norwegian sample. The correlations between the subscales of the RSA were significant.
In the Brazilian sample, the correlations with HSCL-25 and SOC were negative and positive, respectively, thus
supporting its construct validity.
Conclusion: The results indicate that the original factor structure of the RSA based on Norwegian samples remains
stable in a Brazilian sample.
Keywords: Resilience, Resilience scale for Adults, Cross-cultural validation, Sense of Coherence, HSCL-25

With the major advancements in the field of technology and electronics, one persistent obstacle has proven to be one of the major challenges, namely : Data Security. To get connected securely and quickly through the electronic data transfer through the web, the data should be encrypted. Encryption is the process of transforming plain text into ciphered-text, which cannot be understood or altered easily by undesirable people. It can also be defined as the science that uses mathematics in data encryption and decryption operations. In this paper, we discuss several important algorithms used for the encryption and decryption of data in all fields, to make a comparative study for most important algorithms in terms of data security effectiveness, key size, complexity and time, etc. This research focused on different types of cryptography algorithms that are existing, like AES, DES, TDES, DSA, RSA, ECC, EEE and CR4…etc.

Fog computing extends cloud computing to the edge of a network enabling new Internet of Things (IoT) applications and services, which may involve critical data that require privacy and security. In an IoT fog computing system, three elements can be distinguished: IoT nodes that collect data, the cloud, and interconnected IoT gateways that exchange messages with the IoT nodes and with the cloud. This article focuses on securing IoT gateways, which are assumed to be constrained in terms of computational resources, but that are able to offload some processing from the cloud and to reduce the latency in the responses to the IoT nodes. However, it is usually taken for granted that IoT gateways have direct access to the electrical grid, which is not always the case: in mission-critical applications like natural disaster relief or environmental monitoring, it is common to deploy IoT nodes and gateways in large areas where electricity comes from solar or wind energy that charge the batteries that power every device. In this article, how to secure IoT gateway communications while minimizing power consumption is analyzed. The throughput and power consumption of Rivest–Shamir–Adleman (RSA) and Elliptic Curve Cryptography (ECC) are considered, since they are really popular, but have not been thoroughly analyzed when applied to IoT scenarios. Moreover, the most widespread Transport Layer Security (TLS) cipher suites use RSA as the main public key-exchange algorithm, but the key sizes needed are not practical for most IoT devices and cannot be scaled to high security levels. In contrast, ECC represents a much lighter and scalable alternative. Thus, RSA and ECC are compared for equivalent security levels, and power consumption and data throughput are measured using a testbed of IoT gateways. The measurements obtained indicate that, in the specific fog computing scenario proposed, ECC is clearly a much better alternative than RSA, obtaining energy consumption reductions of up to 50% and a data throughput that doubles RSA in most scenarios. These conclusions are then corroborated by a frame temporal analysis of Ethernet packets. In addition, current data compression algorithms are evaluated, concluding that, when dealing with the small payloads related to IoT applications, they do not pay off in terms of real data throughput and power consumption.

In current scenario everything is being transferred on the web and other communication medium. So that we need to make our data secure from all other attacker and unauthorized person. So that we have to give lot of protection to the transmitting data. For that we have lots of cryptography algorithm .But all of then do not provide level best protection in today‟s world as there are lots of ways to make that algorithm cracked and the cryptanalyst can retrieve the plain text so easily. So that with reference to the RSA and other famous algorithms as Diffie Hellman and N-prime RSA we have tried to give one more level of security by the use of Magic Rectangle. And by the use of Magic Rectangle we can have different cipher text for the same character. So by these many reasons this approach give enhancement to the public key cryptosystem. And Magic Rectangle have different approach that can unable to get the plain text without the knowledge of generation of Magic Rectangle.

Passwordless Login for Web Application' is an android application, will be used to access online internet accounts of distinct web applications and web services. The user would register with prerequisite credentials primarily like, an email id, primary mobile number, and a unique username and a secondary mobile number. After successful registration, the user would be required to enter its registered username only. After submitting the registered username, a unique QR code will be popped up on the website. The user would scan the QR code using his/her android mobile phone. After successful scanning of QR code, the authentication and authorization procedure will be performed thereby granting secure access.

The following document will be overlooking the research carried out to develop a sales management system that will implement high end RSA encryption. The report consists of all the research carried out into the field of cybersecurity and sales management systems and oversees the development of the actual system. The research includes the types of encryption algorithms and the processes of encrypting data in a sales management system. various software development methodologies are looked at and the methodology used to develop the system is highlighted stating the advantages and disadvantages of using it The resulting system is tested and documented to allow for future maintenance and improvements.

Kryptografie je velmi důležitým aspektem našeho každodenního života, protože poskytuje teoretický základ informační bezpečnosti. Kvantové výpočty a informace se také stávají velmi důležitou oblastí vědy kvůli mnoha aplikačním oblastem včetně kryptologie a konkrétněji v kryptografii veřejných klíčů. Obtížnost čísel do hlavních faktorů je základem některých důležitých veřejných kryptosystémů, jejichž klíčem je kryptosystém RSA . Shorův kvantový faktoringový al-goritmus využívá zejména kvantový interferenční účinek kvantového výpočtu k faktorovým semi-prime číslům v polynomiálním čase na kvantovém počítači. Ačkoli kapacita současných kvantových počítačů vykonávat Shorův algoritmus je velmi omezená, existuje mnoho rozsáhlých základních vědeckých výzkumů o různých technikách optimalizace algoritmu, pokud jde o faktory, jako je počet qubitů, hloubka obvodu a počet bran. v této práci jsou diskutovány, analyzovány a porovnávány různé varianty Shorova factoringového algoritmu a kvantových ob...

Public Key Infrastructure gives security limits on the association, for instance, encryption of data, an insistence that data are done and customer affirmation, by open key encryption, etc. PKI starts to be worked as a validation base on an organization by governments and colleges. Security is a significant worry for all organizations that move advanced data. These exchanges that might be secret, government, or private data should be shielded from falling into degenerate hands. PKI is presumably the best answer for this issue. An open gate is a client validation door framework for servers in the climate open for everyone. It has been working for managing the grounds fully unlocked organization. The Open gate API is empowered as a matter of course on all records. You don't need to successfully turn on this element. Be that as it may, API keys are utilized to control admittance to the assets through the API. At the point when an outsider application requests your API key, you can discover it on your information page by tapping the "Show your API keys" connect.

Medical image security provides challenges and opportunities, watermarking and encryption of medical images provides the necessary control over the flow of medical information. In this paper a dual security approach is employed .A medical image is considered as watermark and is watermarked inside a natural image. This approach is to wean way the potential attacker by disguising the medical image as a natural image. To further enhance the security the watermarked image is encrypted using encryption algorithms. In this paper a multi–objective optimization approach optimized using different metaheuristic approaches like Genetic Algorithm (GA), Differential Evolution ( DE) and Bacterial Foraging Optimization (BFOA) is proposed. Such optimization helps in preserving the structural integrity of the medical images, which is of utmost importance. The water marking is proposed to be implemented using both Lifted Wavelet Transforms (LWT) and Singular Value Decomposition (SVD) technique. The encryption is done using RSA and AES encryption algorithms. A Graphical User Interface (GUI) which enables the user to have ease of operation in loading the image, watermark it, encrypt it and also retrieve the original image whenever necessary is also designed and presented in this paper.

In this era of rapid technological development, critical prescriptive documents and personality information have begun to be stored in digital media. Increasing the importance of stored information has led to the development of security procedures for them and has led to the emergence of new encryption algorithms. We compare the RSA algorithm with the SEA (Scalable Encrytion Algorithm) algorithm, which is used in recently emerging and mostly embedded systems.

In this paper, we consider an RSA modulus N=pq, where the prime factors p, q are of the same size. We
present an attack on RSA when the decryption exponent d is in the form d=Md1+d0 where M is a given
positive integer and d1 and d0 are two suitably small unknown integers. In 1999, Boneh and Durfee
presented an attack on RSA when .0 292 d < N . When d=Md1+d0, our attack enables one to overcome
Boneh and Durfee's bound and to factor the RSA modulus.

Sending a message is an activity who use by everyone for a day now. But we a citizen must beware of message spy without permission or tap a message content while a message inside a process sending from cellular owner who has that message. Of course cellular owner doesn't know there's a other who know that a message content that is a private message or steal an idea content of message. For thatim initiative for build a security message using cryptograph with RSA Method which a cellular owner can sending or receive a message without spy by other (cryptonalyst). For me cryptograph is the only way for secure a message from cryptonalyst (hacker) and a cryptography has been called like a code language. And why I am implement RSA Method for a securing a message than an other method of cryptograph ? That thing because a common method like blowfish , chipper cigne , etc only use one key for encrypt and decrypt a message , but with a RSA Method a message will be encrypt and decrypt with two key and its call public key for encrypt a message and private key for decrypt a message. And this application will be build in android platform because there's many people have an android mobile.

En este documento se pretende realizar un criptoanálisis (podríamos decir “una prueba de resistencia”) al sistema de cifrado RSA.

Se empieza por definir cómo funciona el algoritmo a nivel funcional, y cómo funciona a nivel técnico. Una vez explicado este punto, se analiza cuál es el punto óptimo para explotar para “romper” el cifrado (es decir, descifrar un texto sin necesidad de conocer la clave).

Se desarrollan varios métodos, partiendo del más básico, hasta métodos más avanzados y optimizados. Para cada método, se expone un análisis, así como ventajas e inconvenientes. También se exponen las mejoras al respecto de los métodos anteriores.

Llegado cierto punto, se escoge el que parece el método óptimo para la tarea, y se realiza un desarrollo, tras el cual se efectúan optimizaciones y mediciones con fin estadístico.

Con las estadísticas recogidas, se realiza un marco teórico en el que se hipotetiza a cerca del tratamiento en entornos reales de la solución aportada, y se emiten unas conclusiones al respecto, así como una opinión final.

In today’s era, secure transmission of confidential data is of biggest concern. The encryption plays an important role in transmission of secure data. The encryption means converting the original data to cipher text. The main issue is which technique should be used to provide secure transmission. This paper provides an analysis of various encryption algorithms i.e. AES, DES, 3DES, Blowfish, RC4, RC6. The Comparison is also provided.

Presently, mobile handheld device has successfully replaced traditional telephone to become the most popular wireless communication tools. Mobile Short Message Service (SMS) and Multimedia Message Service (MMS) fulfill almost all the user requirements as an effective communication and information delivering service. Since SMS/MMS become so popular on daily communication, there is a demand to communicate or exchange confidential information in a secure environment. Public Key Infrastructure (PKI) is a proven solution, which using pairing of key, for secure communication encryption. In this paper, m–PKI is introduced to provide PKI encryption to the mobile SMS and MMS. This new approach allows the end-user to send private and classified message via SMS. The key pair generation and distribution are performed by the Certificate Authority (CA). The size of the key pair are studied and decided by the tradeoff between performance and security.

Cryptography plays an important role for data security and integrity and is widely adopted, especially in embedded systems. On one hand, we want to reduce the computation overhead of cryptography algorithms; on the other hand, we also want to reduce the energy consumption associated with this computation overhead. In this paper, we explore techniques to improve the overall throughput and energy consumption of RSA (Rivest, Shamir and Adleman) public-key cryptography. Instead of implementing the entire algorithm into hardware format, we carefully implemented a custom coprocessor design to accelerate a single hotspot function of RSA algorithm on a Virtex5 FPGA platform. Then, we compare the effectiveness of the coprocessor design against the software implementation of RSA. The hardware accelerates the execution time by 10% thus minimizing the energy by 9%, achieving our goal.

Le discours sur la « fraude sociale » a marqué le quinquennat de Nicolas Sarkozy. Prétextant sauver la protection sociale des assistés et des tricheurs, ce discours a répandu l'idée que les droits économiques et sociaux se méritent et a inoculé une suspicion à l'encontre de leurs bénéficiaires légitimes. En martelant l'idée que le système est « fraudogène », il a prétendu que les droits ne sont pas une obligation et que les prélèvements les finançant ne sont pas un devoir, à l'inverse des principes qui fondent le modèle social français.
Or, pour être juste et acceptable, la lutte contre la fraude doit éviter l'amalgame et la division, et participer à une politique générale d'accès aux droits sociaux. Car si la fraude à l'ensemble des prestations sociales est estimée à 4 milliards d'euros par an, son envers, à savoir le « non-recours » à ces aides de la part des très nombreuses personnes qui y ont droit, est bien supérieur. Ainsi, chaque année, 5,7 milliards d'euros de revenu de solidarité active, 700 millions d'euros de couverture maladie universelle complémentaire, 378 millions d'euros d'aide à l'acquisition d'une complémentaire santé, etc., ne sont pas versés à leurs destinataires. C'est ce que démontre et interroge cet ouvrage, exemples, faits et chiffres à l'appui.

Cryptography is an art to manipulate a private message, especially for state security. One of the known methods to strengthen the secureness of a cryptography is by combining two existing cryptographies. A combination of two cryptographies is also called the hybrid algorithm. By combining symmetric cryptography and asymmetric cryptography, the security of the hybrid algorithm will increase. Studies provide the development of combination between one time pad cryptography and RSA cryptography. In order to do so, we made a scheme of how to combine one time pad cryptography and RSA cryptography to be a hybrid algorithm. The result shows that there are three steps to use this algorithm. First, both of RSA key are generated by the receiver and the receiver give the public key to the sender. Then, the sender encrypt the private message and send it to the receiver. Finally, the receiver decrypt the message. This algorithm will cover the weakness of one time pad cryptography by RSA cryptography. Therefore, we can say that the security of this algorithm is guaranteed.

The aim of this study is to investigate the bodily-self in Restrictive Anorexia, focusing on two basic aspects related to the bodily self: autonomic strategies in social behavior, in which others' social desirability features, and social cues (e.g., gaze) are modulated, and interoception (i.e., the sensitivity to stimuli originating inside the body). Furthermore, since previous studies carried out on healthy individuals found that interoception seems to contribute to the autonomic regulation of social behavior, as measured by Respiratory Sinus Arrhythmia (RSA), we aimed to explore this link in anorexia patients, whose ability to perceive their bodily signal seems to be impaired. To this purpose, we compared a group of anorexia patients (ANg; restrictive type) with a group of Healthy Controls (HCg) for RSA responses during both a resting state and a social proxemics task, for their explicit judgments of comfort in social distances during a behavioral proxemics task, and for their Interoceptive Accuracy (IA). The results showed that ANg displayed significantly lower social disposition and a flattened autonomic reactivity during the proxemics task, irrespective of the presence of others' socially desirable features or social cues. Moreover, unlike HCg, the autonomic arousal of ANg did not guide behavioral judgments of social distances. Finally, IA was strictly related to social disposition in both groups, but with opposite trends in ANg. We conclude that autonomic imbalance and its altered relationship with interoception might have a crucial role in anorexia disturbances.

Due to their use in daily life situation, demand for remote health applications and e-health monitoring equipment is growing quickly. In this phase, for fast diagnosis and therapy, information can be transferred from the patient to the distant clinic. Nowadays, the most chronic disease is cardiovascular diseases (CVDs). However, the storage and transmission of the ECG signal, consumes more energy, bandwidth and data security which is faced many challenges. Hence, in this work, we present a combined approach for ECG data compression and cryptography. The compression is performed using adaptive Huffman encoding and encrypting is done using AES (CBC) scheme with a 256-bit key. To increase the security, we include Diffie-Hellman Key exchange to authenticate the receiver, RSA key generation for encrypting and decrypting the data. Experimental results show that the proposed approach achieves better performance in terms of compression and encryption on MIT-BIH ECG dataset.

Data Security is the most important issue nowadays. A lot of cryptosystems are introduced to provide security. Public key cryptosystems are the most common cryptosystems used for securing data communication. The common drawback of applying such cryptosystems is the heavy computations which degrade performance of a system. Modular multiplication is the basic operation of common public key cryptosystems such as RSA, Diffie-Hellman key agreement (DH), ElGamal and ECC. Much research is now directed to reduce overall time consumed by modular multiplication operation. Abd-el-fatah et al. introduced an enhanced architecture for computing modular multiplication of two large numbers X and Y modulo given M. In this paper, a modification on that architecture is introduced. The proposed design computes modular multiplication by scanning two bits per iteration instead of one bit. The proposed design for 1024-bit precision reduced overall time by 38% compared to the design of Abd-el-fatah et al.

Smart cards improve the convenience and security of any transaction. They provide tamper-proof storage
of user and account identity. Multifunction cards are used to manage network system access, store value
and other data. The cards carry personal account, credit and buying-preference information and thus,
security becomes a primary issue here. Public Key Cryptography plays an essential role in electronic
banking and financial transactions. ECC is one of the best public key techniques for its small key size, high
security and is suitable for secure access of smart cards. This article gives principles of public key
cryptography, illustrates two cryptographic algorithms RSA and ECC. The elliptic curve cryptography is
implemented on smart card using Menezes-Vanstone Elliptic Curve Cryptosystem and Nyberg-Rueppel
Signature Scheme [2]. The implementation of these algorithms is done using Java Card technology. The
test results are analysed and comparison about the public key sizes and security aspects are also discussed.

The computational fundament of most public-key cryptosystems is the modular multiplication. Improving the efficiency of the modular multiplication is directly associated with the efficiency of the whole cryptosystem. This paper presents an implementation and comparison of three recently proposed, highly efficient architectures for modular multiplication on FPGAs: interleaved modular multiplication and two variants of the Montgomery modular multiplication. This (first) hardware implementation of these designs shows their relative performance regarding area and speed.

Childhood adversity (CA) is strongly associated with youth psychopathology. Identifying factors that reduce vulnerability following CA is critical for developing preventive interventions. Vagal tone and vagal reactivity following psychosocial stressors might influence psychopathology among youths exposed to CA. We acquired heart period and impedance cardiography data to calculate respiratory sinus arrhythmia (RSA) and preejection period (PEP) from 157 adolescents aged 13-17 years at rest and during the Trier Social Stress Test (TSST). Internalizing and externalizing symptoms and multiple forms of CA were assessed. Resting RSA and RSA reactivity interacted with CA in predicting internalizing but not externalizing psychopathology; CA was unassociated with internalizing problems in adolescents with high resting RSA and RSA reactivity. No interactions were observed with PEP. High resting RSA predicted greater vagal rebound and accelerated heart rate recovery following the TSST, highlighting one potential mechanism underlying low internalizing symptoms following CA among youths with high vagal tone. ß 2013 Wiley Periodicals, Inc. Dev Psychobiol 56: 1036-1051, 2014.

Pertukaran dokumen elektronik melalui jaringan publik global atau Internet menggunakan fasilitas email sudah luas digunakan sebagai transaksi komersial. Untuk menjamin dokumen elektronik tersebut masih utuh/otentik/tidak mengalami modifikasi saat sampai di pihak penerima (verifier) dalam jaringan publik yang tidak aman tersebut salah satunya adalah memberi tandatangan digital (digital signature) pada dokumen elektronik. Salah satu metode yang digunakan untuk membuat tandatangan digital adalah dengan menggunakan algoritma RSA yang ditemukan Ron Rivest, Adi Shamir, dan Leonard Adleman dikombinasikan dengan sertifikat digital untuk proses penandatanganan dan verifikasi dokumen elektronik, juga menggunakan biometri suara yang akan memverifikasi pihak pengirim (signer) saat hendak mengirimkan dokumen elektronik. Tujuan dari penelitian ini adalah membuat aplikasi digital signature dengan metode RSA dan biometri suara untuk mengotentikasi dokumen elektronik. Pada penelitian ini yang digunakan sebagai masukan adalah kunci privat dan sertifikat digital pihak signer yang dikonversi kedalam format personal information exchange (pfx). selanjutnya pihak signer menandatangani dokumen elektronik dengan pfx tersebut dan mengirimkannya kepada pihak verifier menggunakan email. Pihak verifier memverifikasi signature yang diterima. Jika hasilnya valid maka berarti dokumen elektronik yang diterima masih utuh/otentik. Sebaliknya jika invalid, maka dokumen tersebut sudah tidak utuh/mengalami modifikasi.

SPI 2014: nº 1.
Pietro Bembo (1470-1547) nació en Venecia en el seno de una familia perteneciente a la aristocracia. Su padre, prestigioso diplomático, bibliófilo y coleccionista de arte, mantuvo estrecho contacto con figuras destacadas del humanismo italiano, lo que permitió al autor entrar desde muy temprano en contacto con el mundo de la cultura y de la aristocracia. La obra poética y teórica de Bembo fue ampliamente conocida y seguida en España. Su influencia en las «Anotaciones» de Fernando de Herrera es clara y directa. Las «Prosas de la lengua vulgar» son uno de esos grandes textos fundacionales, que representan uno de los pilares de la historia de la literatura. Los literatos de todos los tiempos han acudido a esta obra de forma habitual y constante. La trascendencia de la obra bembiana superó las barreras de su país de origen y llenó los cauces de la literatura española en un momento de evolución decisivo para su desarrollo futuro. En la necesidad de una codificación de la lengua poética, las «Prosas de la lengua vulgar» venían a ofrecer un bagaje preceptístico que buscaba en los clásicos el modelo para fijar una lengua poética que perdurara a lo largo de los siglos.