Encontrados 11 documentos, a visualizar página 1 de 2
A machine learning approach to keystroke dynamics based user authentication
Revett, Kenneth; Gorunescu, Florin; Gorunescu, Marina; Ene, Marius; Magalhães, Paulo Sérgio; Santos, Henrique Dinis dosThe majority of computer systems employ a login ID and password as the principal method for access security. In stand-alone situations, this level of security may be adequate, but when computers are connected to the internet, the vulnerability to a security breach is increased. In order to reduce vulnerability to attack, biometric solutions have been employed. In this paper, we investigate the use of a behaviou...
Information technologies for the information agent
Magalhães, Paulo Sérgio; Santos, Henrique Dinis dos; Santos, Leonel Duarte dos; Revett, Kenneth; Nunes, Paulo ViegasThe information agent has requirements in the Information Technology (IT) age that are in everything comparable to those of one hundred years ago. But, despite being similar, they require new forms of implementation due to the evolution of the communication platforms and protocols and to the increase in the amount of information that has to be known, stored, transmitted, and interpreted. Although, in many situa...
Generation of authentication strings from graphic keys
Magalhães, Paulo Sérgio; Revett, Kenneth; Santos, Henrique Dinis dosThe traditional authentication system used in technological applications is the well-known and widely spread user/password pair. This technology as proved itself as well acceptable by the users and quite safe when used according to good security practices, this is: frequent change of the password; use of letters, number and symbols in the password; not revealing the password to others; not using the same passwo...
Keystroke dynamics : stepping forward in authentication
Magalhães, Paulo Sérgio; Revett, Kenneth; Santos, Henrique Dinis dosAuthenticating a user is a complex problem in which we depend to provide some level of trust to the Security Proceedings of the Information System and to the Information System itself. Biometric technologies have shown that they are able to provide high rates of accuracy but they also raise many ethical issues. On the other side of the problem, many times authentication must be made without the collaboration of...
Authenticating computer access based on keystroke dynamics using a probabilisti...
Revett, Kenneth; Gorunescu, Florin; Gorunescu, Marina; Ene, Marius; Magalhães, Paulo Sérgio; Santos, Henrique Dinis dosComunicação apresentada na 2nd Annual International Conference on Global e-Security, Docklands, UK, 20 - 22 April 2006. ; Most computer systems are secured using a login id and password. When computers are connected to the internet, they become more vulnerable as more machines are available to attack them. In this paper, we present a novel method for protecting/enhancing login protection that can reduce the ...
Critical aspects In authentication graphic keys
Magalhães, Paulo Sérgio; Revett, Kenneth; Santos, Henrique Dinis dosIn order to increase the number of possible keys (key’s space), some applications are using, as the user’s authentication secret, images instead of words, taking advantage of the several possibilities for each mouse click and of the fact that humans memorize images better then words. This paper presents the characterisation of the graphical keys chosen by almost 200 regular users of a website and the results sh...
Data mining a prostate cancer dataset using rough sets
Revett, Kenneth; Magalhães, Paulo Sérgio; Santos, Henrique Dinis dosProstate cancer remains one of the leading causes of cancer death worldwide, with a reported incidence rate of 650,000 cases per annum worldwide. The causal factors of prostate cancer still remain to be determined. In this paper, we investigate a medical dataset containing clinical information on 502 prostate cancer patients using the machine learning technique of rough sets. Our preliminary results yield a cla...
Password secured sites : stepping forward with keystroke dynamics
Magalhães, Paulo Sérgio; Revett, Kenneth; Santos, Henrique Dinis dosComputer Authentication is a critical component of most computer systems, especially those used in e-Commerce activities over the internet. Global access to information makes security, namely the authentication process, a critical design issue in these systems. In what concerns to authentication, what is required is a reliable, hardware independent and efficient security system. In this paper, we propose an ext...
Developing a keystroke dynamics based agent using rough sets
Revett, Kenneth; Magalhães, Paulo Sérgio; Santos, Henrique Dinis dosSoftware based biometrics, utilising keystroke dynamics has been proposed as a cost effective means of enhancing computer access security. Keystroke dynamics has been successfully employed as a means of identifying legitimate/illegitimate login attempts based on the typing style of the login entry. In this paper, we collected keystroke dynamics data in the form of digraphs from a series of users entering a spe...
Enhancing login security through the use of keystroke input dynamics
Revett, Kenneth; Magalhães, Paulo Sérgio; Santos, Henrique Dinis dosSecurity is a critical component of most computer systems – especially those used in E-commerce activities over the Internet. Global access to information makes security a critical design issue in these systems. Deployment of sophisticated hardware based authentication systems is prohibitive in all but the most sensitive installations. What is required is a reliable, hardware independent and efficient security ...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||