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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

CÃdigos de barra e criptografia / Bar codes and cryptography

AurÃlio EugÃnio Aguiar de Lima 26 April 2014 (has links)
CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior / Descreveremos o surgimento e o desenvolvimento dos cÃdigos de barra. Explicaremos como funcionam os cÃdigos UPC, EAN, ISBN e o QR Code. Enfatizaremos o EAN â 13 â o mais usado atualmente -, mostrando em que casos e como esse cÃdigo consegue detectar erros cometidos por falha humana. AlÃm disso, faremos um estudo da criptografia, citando o cÃdigo de CÃsar e o cÃdigo de blocos. Faremos tambÃm um estudo mais detalhado da criptografia RSA, exemplificando a codificaÃÃo e a decodificaÃÃo. / We will describe the emergence and development of the barcodes. Weâll explain how the UPC, EAN, ISBN and QR codes work. We will emphasize the EAN-13 â the most currently used-showing where and how this code can detect errors committed by human error. In addition, we make a study of cryptography, quoting the code of Caesar and the code block. We will also do a more detailed study of RSA encryption, exemplifying encoding and decoding.

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