Spelling suggestions: "subject:"electronic nurse"" "subject:"electronic curse""
1 |
Sistemas y entornos de pago para la adquisición de contenidos y servicios electrónicos en redRuiz Martínez, Antonio 22 July 2009 (has links)
A día de hoy un amplio número de propuestas han aparecido para intentar ofrecer sistemas de pago seguros y frameworks para realizar transacciones de pago. Sin embargo, a pesar de estas propuestas, todavía quedan determinados aspectos por cubrir.Desde el punto de vista de los sistemas de pago, las características a mejorar para los escenarios del tipo B2C (Business to Customer) de productos electrónicos son el no repudio y el intercambio equitativo. El uso de monederos electrónicos puede contribuir a incrementar la seguridad estos sistemas, facilitar la movilidad del dinero electrónico y su uso en distintos escenarios. Sin embargo, actualmente su uso para realizar pagos en la red es reducido. El principal problema que presentan las soluciones de pago basadas en monederos es la necesidad de que los distintos vendedores incorporen el uso de dispositivos hardware con módulos SAM (Secure Application Module) que pueden llevar a que el proceso de pago sea lento.Por otro lado, cada vez existen más protocolos de pagos, con distintas características y que según éstas se adaptan mejor a la compra de unos determinados productos o servicios en determinados escenarios. Para facilitar el uso de distintos protocolos de pago en un mismo escenario aparecen los frameworks de pagos. Sin embargo, hasta ahora, no existenframeworks de pagos suficientemente genéricos que contemplen todos los elementos necesarios para utilizar estos protocolos de una forma genérica.En respuesta a estas necesidades este trabajo de tesis presenta distintas soluciones. Por un lado presenta dos soluciones de pago basadas en monedero inteligente que pretenden facilitar el uso de estos dispositivos de una forma progresiva. En primer lugar, facilitando el pago con los monederos existentes y, en segundo lugar, proponiendo un nuevo monedero que facilite su uso para pagos en la Web.Por otro lado se han definido distintos frameworks de pagos que permitirán la adquisición de los principales tipos de productos y servicios electrónicos: contenidos Web, contenidos distribuidos bajo streaming, servicios Web y, finalmente, servicios multimedia basados en sesiones. Estos frameworks se basan en la definición de varios componentes genéricos, como son los wallets para soportar distintos protocolos de pago, un protocolo de pagos genérico que soporta la negociación y elección de las opciones de pago a utilizar y sus precios y, finalmente, la descripción de la información de pago de una forma genérica.[ / ]Nowadays a large number of proposals have emerged to offer secure payment systems and frameworks to perform payment transactions. However, in spite of these proposals, there are still some issues to be covered.From the payment systems point of view, the features to improve in B2C (Business to Customer) scenarios of electronic products are non repudiation and fair exchange. The use of e-purses can contribute to increase the security of these systems, facilitating the mobility of electronic money and its use in different scenarios. However, currently its use to make payments on the Internet is reduced. The main problem that payment-based solution present is the requirement, for vendors, of incorporating hardware devices with SAM (Secure Application Module) modules that could lead the payment process is slow.On the other hand, there are more and more payment protocols, with different features and that depending on them can be adapted better to the purchase of certain products or services in specific scenarios. With the aim of facilitating the use of different payment protocols in the same scenario, payment frameworks appeared. However, until now, there is no payment frameworks secure enough that take into account all the elements needed to use these protocols in a generic way.As a response to these needs, this PhD thesis presents several solutions. On the one hand, we propose two payment solutions based on e-purse that intend to facilitate the use of these devices progressively. Firstly, by facilitating the payment with the existing e-purses and, secondly, by proposing a new e-purse that facilitates the use of e-purses to make payments on the Web.On the other hand, different payment frameworks that will allow the purchase of the main types of electronic products and services (Web contents, contents distributed by streaming, Web services and multimedia services based on sessions) have been defined.These frameworks are based on the definition of several generic components, as wallets for supporting the negotiation and choice of payment options to use and their prices, and, finally, the description of payment information in a generic way.Thus, the proposals presented offer secure payment protocols based on e-purses and different frameworks for the main electronic products and services that facilitate the use of the protocols as well as any other payment protocol. Furthermore, these proposals can improve the use of payment systems in a trusted way.
|
2 |
Multiaplikační čipové karty / Multiaplication smart cardsMeluzín, Ivo January 2011 (has links)
The goal of the first part of the thesis is to describe the options of wide usage of chip cards in different segments of our life. Consequently it is necessary to mention hardware and software equipment of smart card, its communication with terminal and data security. In this thesis we focus on Java Card environment in which we will try to create two applications, one for electronic purse and the second for user identification. Basically, we need to mention multiapplicational rules of sharing data and objects. At the end of the thesis we are focusing on the possibility of mutual interference between the applications and on protection against attacks. Also future applications of this technology are described.
|
3 |
Essai sur l'adoption et l'usage de la monnaie électronique / Essay on the adoption and usage of electronic moneyVasselin, Françoise 29 September 2017 (has links)
Cette thèse comporte trois chapitres. Le premier chapitre décrit les moyens de paiement permettant le transfert de monnaie électronique (e-monnaie), les déterminants de leur adoption et leur usage dans le monde. Les deux chapitres suivants sont des articles qui analysent la concurrence entre la monnaie fiduciaire et l’e-monnaie à partir du modèle de Lagos-Wright (2005). Dans le premier article, à la différence des espèces, la détention d’e-monnaie est garantie contre le risque de perte ou de vol, et les marchands doivent investir pour recevoir l’e-monnaie. Du fait des complémentarités stratégiques entre les acheteurs et les vendeurs, il existe une multiplicité d’équilibres où seule une monnaie, ou les deux circulent. Nous analysons le bien-être et quantifions le modèle pour expliquer l’échec de l’e-monnaie en Europe et son succès en Asie et aux Etats-Unis. Dans le second article, les espèces concurrencent la monnaie mobile (M-monnaie). Les agents peuvent créer des partenariats et chaque transaction est réglée avec un seul moyen de paiement. Les agents sans partenaire utilisent les espèces, les autres utilisent l’M-monnaie. Les acheteurs avec un partenaire détiennent toujours de l’M-monnaie, seule ou en complément des espèces, alors que les acheteurs sans partenaire utilisent soit l’une, soit l’autre, soit les deux, soit aucune monnaie. Cependant, l’M-monnaie ne remplace les espèces que si le nombre de vendeurs traditionnels est très faible et l’inflation pas trop élevée. Ainsi, le partenariat est un mécanisme de coordination qui explique le succès des applications de paiement mobile proposées par des enseignes à leurs clients fidèles aux Etats-Unis. / This thesis has three chapters. The first chapter describes the means of payment allowingthe transfer of electronic money (e-money), the determinants of their adoption and their usein the world. The following two chapters are articles that analyze the competition between fiat money and e-money from the Lagos-Wright model (2005). In the first article, unlike cash, the holding of e-money is guaranteed against the risk of loss or theft, and merchants must invest to receive e-money. Due to strategic complementarities between buyers andsellers, there is a multiplicity of equilibria where only one money, or both, circulate. We analyze welfare and quantify the model to explain the failure of e-money in Europe and its success in Asia and in the United States. In the second article, cash competes with mobilemoney (M-money). Agents can create partnerships and each transaction is settled with one means of payment only. Agents without a partner use cash, the others use M-money.Buyers with a partner always hold M-money, alone or in addition to cash, while buyers without a partner use either one, or the other, or both, or no money. However, M-money replaces cash only if the number of traditional sellers is very low and inflation not too high.So, partnership is a coordination mechanism that explains the success of mobile payment applications offered by brands to their loyal customers in the United States.
|
Page generated in 0.0764 seconds