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Cryptography: Algorithms and Security Applications

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PUPR_SJU_CEAH_Publicaciones_Revista UPPR_Vol10_Num01_Junio 2000_P07_Alfredo Cruz_M. Fernández_G. Díaz_A. Cosme_I. Negrón_P. Negrón_Article (998.7Kb)
Date
2000-06
Author
Cruz, Alfredo
Fernández, Maxime
Díaz, Gloria
Cosme, Alberto
Negrón, Irtalis
Negrón, Priscilla
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Abstract
Cryptography in Computer Science and Information Systems are broad. It is based in a sequence of steps, and its premise is only one: security. One of the latest developments in cryptography is Steganography, which is the art of transmitting information in such a way that the very existence of the message is unknown. The purpose of steganography is to elude drawing suspicion to the transmission of a hidden message. If suspicion is developed, then the goal is overcome. Steganalysis is the art of assembling and rendering useless such concealed messages. This paper will give an overview of Cryptography. We will focus on the algorithms mostly used and the different techniques available for encryption. We will also explain the Digital Signature, Digital I.D process, Certification Authentication, X.509 Certificate Format, Certificate distribution, Digital Time-Stamping (DTS), and finally discuss the attacks and security features obtained through the Cryptography.
URI
http://hdl.handle.net/20.500.12475/1529
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