Modelling and simulation of a biometric identity-based cryptography

Government information is a vital asset that must be kept in a trusted environment and efficiently managed by authorised parties. Even though e-Government provides a number of advantages, it also introduces a range of new security risks. Sharing confidential and top-secret information in a secure manner among government sectors tend to be the main element that government agencies look for. Thus, developing an effective methodology is essential and it is a key factor for e-Government success. The proposed e-Government scheme in this paper is a combination of identity-based encryption and biometric technology. This new scheme can effectively improve the security in authentication systems, which provides a reliable identity with a high degree of assurance. In addition, this paper demonstrates the feasibility of using Finite-state machines as a formal method to analyse the proposed protocols

Multibiometric security in wireless communication systems

This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 05/08/2010.This thesis has aimed to explore an application of Multibiometrics to secured wireless communications. The medium of study for this purpose included Wi-Fi, 3G, and WiMAX, over which simulations and experimental studies were carried out to assess the performance. In specific, restriction of access to authorized users only is provided by a technique referred to hereafter as multibiometric cryptosystem. In brief, the system is built upon a complete challenge/response methodology in order to obtain a high level of security on the basis of user identification by fingerprint and further confirmation by verification of the user through text-dependent speaker recognition. First is the enrolment phase by which the database of watermarked fingerprints with memorable texts along with the voice features, based on the same texts, is created by sending them to the server through wireless channel. Later is the verification stage at which claimed users, ones who claim are genuine, are verified against the database, and it consists of five steps. Initially faced by the identification level, one is asked to first present one’s fingerprint and a memorable word, former is watermarked into latter, in order for system to authenticate the fingerprint and verify the validity of it by retrieving the challenge for accepted user. The following three steps then involve speaker recognition including the user responding to the challenge by text-dependent voice, server authenticating the response, and finally server accepting/rejecting the user. In order to implement fingerprint watermarking, i.e. incorporating the memorable word as a watermark message into the fingerprint image, an algorithm of five steps has been developed. The first three novel steps having to do with the fingerprint image enhancement (CLAHE with 'Clip Limit', standard deviation analysis and sliding neighborhood) have been followed with further two steps for embedding, and extracting the watermark into the enhanced fingerprint image utilising Discrete Wavelet Transform (DWT). In the speaker recognition stage, the limitations of this technique in wireless communication have been addressed by sending voice feature (cepstral coefficients) instead of raw sample. This scheme is to reap the advantages of reducing the transmission time and dependency of the data on communication channel, together with no loss of packet. Finally, the obtained results have verified the claims

Automatic Voting Machine – An Advanced Model for Secured Biometrics Based Voting System

India, which is now considered as the world’s largest democracy has been praised in the whole world for its democratic principles of “Sovereign, Socialist, Secular, Democratic, Republic”. It is now the second largest populous country in the world. Although the country has a rich technical and scientific infrastructure yet the voting and election procedures do not reflect it. In this paper we are going to propose a concept or idea about how the voting processes and equipments can be designed for a “free, fair and secure” polling in the upcoming days. Researchers have proved various problems related to the present voting technique in India which is through Electronic Voting Machines (EVM) [2]. Our proposed model of the equipment for voting will overcome those problems making elections & voting fair, convenient and reliable to every citizen. This proposed model will assure complete transparency and will definitely gain the trust and integrity of the voters. Biometric authentication and identity proof are given much priority while proposing the concept since biometric authentication is a type of system that relies on the unique biological characteristics (such as finger prints, retina scan, etc.) of individuals to verify identity for secure access to electronic systems. DOI: 10.17762/ijritcc2321-8169.15074

ATTESTATION-BASED REMOTE BIOMETRIC AUTHENTICATION

Migration from password and token-based authentication in distributed systems requires fundamental changes to the authentication process. A person\u27s biometric data is not a secret, which presents a fundamental difference with other authentication methods. Matching a sample with a database template is secondary to establishing trust in the integrity of the sample. The process is similar to establishing a chain of custody for judicial evidence. In computer systems this is accomplished using attestation architectures. In this paper, a design for a secure remote biometric login system based on an attestation architecture is analyzed. The system uses a commercially available Trusted Platform Module (TPM) to authenticate the platform during the boot process and perform trusted private-key functions to participate in a challenge/response between the client and a remote biometric matcher. The result is a system that can provide higher assurance than current systems in an economically and administratively feasible system

Um estudo comparativo de contramedidas para detectar ataques de spoofing em sistemas de autenticação de faces

Orientador: José Mario De MartinoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de ComputaçãoResumo: O Resumo poderá ser visualizado no texto completo da tese digitalAbstract: The complete Abstract is available with the full electronic document.MestradoEngenharia de ComputaçãoMestre em Engenharia Elétric

Feature-level fusion in multimodal biometrics

Multimodal biometric systems utilize the evidence presented by multiple biometric modalities (e.g., face and fingerprint, multiple fingers of a user, multiple impressions of a single finger, etc.) in order to determine or verify the identity of an individual. Information from multiple sources can be consolidated in three distinct levels [1]: (i) feature set level; (ii) match score level; and (iii) decision level. While fusion at the match score and decision levels have been extensively studied in the literature, fusion at the feature level is a relatively understudied problem. A novel technique to perform fusion at the feature level by considering two biometric modalities---face and hand geometry, is presented in this paper. Also, a new distance metric conscripted as the Thresholded Absolute Distance (TAD) is used to help reinforce the system\u27s robustness towards noise. Finally, two techniques are proposed to consolidate information available after match score fusion, with that obtained after feature set fusion. These techniques further enhance the performance of the multimodal biometric system and help find an approximate upper bound on its performance. Results indicate that the proposed techniques can lead to substantial improvement in multimodal matching abilities

Realtime IRIS Recognition & Authentication System

Many organizations are using different kinds of automated person's identification systems which improve the user's need, satisfaction and efficiency to secure resource. The information depends on the recent developments in person's identification using Biometric technology method. By using this technology we are to ensure to identify a person weather he/she is real person or fake person. The aim is to increase the security of biometric reorganization frameworks, by adding liveness assessment in a fast, user friendly and non-intrusive manner. In this first, a user must be enroll in the system so that his biometric template can be captured. This template is securely stored in a database. This template is retrieved when an individual needs to be identified. Biometric refers to automatic identification of a person based on his/her physiological or behavioral characteristics. This offers several advantages over traditional methods involving ID cards or PIN. To implement this we are using MATLAB

Enhancements to the XNS authentication-by-proxy model

Authentication is the secure network architecture mechanism by which a pair of suspicious principals communicating over presumably unsecure channels assure themselves that each is that whom it claims to be. The Xerox Network Systems architecture proposes one such authentication scheme. This thesis examines the system consequences of the XNS model\u27s unique proxy variant, by which a principal may temporarily commission a second network entity to assume its identity as a means of authority transfer. Specific attendant system failure modes are highlighted. The student\u27s associated original contributions include proposed model revisions which rectify authentication shortfalls yet facilitate the temporal authority transfer motivating the proxy model. Consistent with the acknowledgement that no single solution is defensible as best under circumstances of such technical and administrative complexity, three viable such architectures are specified. Finally, the demand for a disciplined agent management mechanism within a distributed system such as XNS is resoundingly affirmed in the course of these first-order pursuits