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192.324  Articles
1 of 19.233 pages  |  10  records  |  more records»
Cryptosystems relying on chaotic maps have been presented lately. As a result of inferred and convenient connections amongst the attributes of conventional cryptosystems and chaotic frameworks, the concept of chaotic systems with applications to cryptogra... see more

Generalized signcryption (GSC) can adaptively work as an encryption scheme, a signature scheme or a signcryption scheme with only one algorithm. It is more suitable for the storage constrained setting. In this paper, motivated by Paterson–Schuldt’s scheme... see more

Phishing and identity theft are common threats of online shopping. Phishing is an attempt to steal personal data from legitimate user. In this paper we propose a secure e-payment method using a credit card based on visual cryptography. This method adopts ... see more

As the information age matures, a biometric identification technology will be at the heart of computer interaction with humans and the biosphere in which they reside. Hence, the reliable information security mechanisms are needed to combat the rising magn... see more

AbstractFaith-based Organisations (FBOs) have been at the forefront of a growing interest of the intersection between religion and development. Their value has been recognised as both pragmatic (such as reaching the poorest at the grassroots level and enc... see more

DOI: 10.1590/2179-8966/2021/58177.ResumoA partir de aportes teóricos sobre identidade, diferença, reconhecimento e movimentos sociais, o presente artigo objetiva investigar como estão articulados os movimentos de mulheres indígenas no Brasil, bem com... see more

We propose a new dynamic ID-based remote user authentication scheme using smart cards, which it is based on one-way hash function, ElGamal’s public key cryptosystem and nonce. The scheme achieves the following security requirements: 1) users can choose an... see more

This is an exploratory case study implemented in a public school of Ibagué Colombia, that reports findings of a qualitative research. In this study tenth graders EFL students, explored into their local contexts, salient aspects of youth identity, that eme... see more

Rapid development of Internet of Things (IoT) and its whole ecosystems are opening a lot of opportunities that can improve humans’ quality of life in many aspects. One of the promising area where IoT can enhance our life is in the health care sector. Howe... see more

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