SECCODES - Secure Communication Development System.
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do ITA |
Texto Completo: | http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=14 |
Resumo: | In the history of telecommunications, there has been no single piece of terminal equipment so widely used as the telephone. In many parts of the world, the characteristics of being simple to operate, cheap to purchase and inexpensive to use, and the freedom to access almost any other terminal across the globe, have made the fixed line telephone a basic need in life. As far as the telephone is concerned, there is little personal privacy on telephone conversations; it is easy for an agency or an individual to monitor private telephone lines. If there is a need to protect the telephone communication, there are several steps to be taken and technologies to be employed. In this sense, this thesis concerns the study and implementation of a Secure Communication Development System (SECCODES), so two parts can exchange classified or sensitive information via a telephone line. The analog voice is digitized and encoded by the VC-20 AMBE-MR voice codec into a 4.8 kbps data bit stream; it is processed and encrypted by a Nec V25 processor to be transmitted to a telephone line by a modem. If one has a need or desire to protect his/her telephone communication, SECCODES is suitable to have a secure speech (confidentiality), in this context, the cipher and decipher blocks were designed focusing the easiness to change the parameters and the cryptography algorithm. |
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Biblioteca Digital de Teses e Dissertações do ITA |
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SECCODES - Secure Communication Development System.TelefoniaCriptografiaSegurançaComunicação por vozSistemas digitaisTelecomunicaçõesComunicaçõesEngenharia eletrônicaIn the history of telecommunications, there has been no single piece of terminal equipment so widely used as the telephone. In many parts of the world, the characteristics of being simple to operate, cheap to purchase and inexpensive to use, and the freedom to access almost any other terminal across the globe, have made the fixed line telephone a basic need in life. As far as the telephone is concerned, there is little personal privacy on telephone conversations; it is easy for an agency or an individual to monitor private telephone lines. If there is a need to protect the telephone communication, there are several steps to be taken and technologies to be employed. In this sense, this thesis concerns the study and implementation of a Secure Communication Development System (SECCODES), so two parts can exchange classified or sensitive information via a telephone line. The analog voice is digitized and encoded by the VC-20 AMBE-MR voice codec into a 4.8 kbps data bit stream; it is processed and encrypted by a Nec V25 processor to be transmitted to a telephone line by a modem. If one has a need or desire to protect his/her telephone communication, SECCODES is suitable to have a secure speech (confidentiality), in this context, the cipher and decipher blocks were designed focusing the easiness to change the parameters and the cryptography algorithm. Instituto Tecnológico de AeronáuticaWagner Chiepa CunhaWaldecir João PerrellaMario Tadashi Shimanuki2003-00-00info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=14reponame:Biblioteca Digital de Teses e Dissertações do ITAinstname:Instituto Tecnológico de Aeronáuticainstacron:ITAenginfo:eu-repo/semantics/openAccessapplication/pdf2019-02-02T14:01:37Zoai:agregador.ibict.br.BDTD_ITA:oai:ita.br:14http://oai.bdtd.ibict.br/requestopendoar:null2020-05-28 19:31:59.657Biblioteca Digital de Teses e Dissertações do ITA - Instituto Tecnológico de Aeronáuticatrue |
dc.title.none.fl_str_mv |
SECCODES - Secure Communication Development System. |
title |
SECCODES - Secure Communication Development System. |
spellingShingle |
SECCODES - Secure Communication Development System. Mario Tadashi Shimanuki Telefonia Criptografia Segurança Comunicação por voz Sistemas digitais Telecomunicações Comunicações Engenharia eletrônica |
title_short |
SECCODES - Secure Communication Development System. |
title_full |
SECCODES - Secure Communication Development System. |
title_fullStr |
SECCODES - Secure Communication Development System. |
title_full_unstemmed |
SECCODES - Secure Communication Development System. |
title_sort |
SECCODES - Secure Communication Development System. |
author |
Mario Tadashi Shimanuki |
author_facet |
Mario Tadashi Shimanuki |
author_role |
author |
dc.contributor.none.fl_str_mv |
Wagner Chiepa Cunha Waldecir João Perrella |
dc.contributor.author.fl_str_mv |
Mario Tadashi Shimanuki |
dc.subject.por.fl_str_mv |
Telefonia Criptografia Segurança Comunicação por voz Sistemas digitais Telecomunicações Comunicações Engenharia eletrônica |
topic |
Telefonia Criptografia Segurança Comunicação por voz Sistemas digitais Telecomunicações Comunicações Engenharia eletrônica |
dc.description.none.fl_txt_mv |
In the history of telecommunications, there has been no single piece of terminal equipment so widely used as the telephone. In many parts of the world, the characteristics of being simple to operate, cheap to purchase and inexpensive to use, and the freedom to access almost any other terminal across the globe, have made the fixed line telephone a basic need in life. As far as the telephone is concerned, there is little personal privacy on telephone conversations; it is easy for an agency or an individual to monitor private telephone lines. If there is a need to protect the telephone communication, there are several steps to be taken and technologies to be employed. In this sense, this thesis concerns the study and implementation of a Secure Communication Development System (SECCODES), so two parts can exchange classified or sensitive information via a telephone line. The analog voice is digitized and encoded by the VC-20 AMBE-MR voice codec into a 4.8 kbps data bit stream; it is processed and encrypted by a Nec V25 processor to be transmitted to a telephone line by a modem. If one has a need or desire to protect his/her telephone communication, SECCODES is suitable to have a secure speech (confidentiality), in this context, the cipher and decipher blocks were designed focusing the easiness to change the parameters and the cryptography algorithm. |
description |
In the history of telecommunications, there has been no single piece of terminal equipment so widely used as the telephone. In many parts of the world, the characteristics of being simple to operate, cheap to purchase and inexpensive to use, and the freedom to access almost any other terminal across the globe, have made the fixed line telephone a basic need in life. As far as the telephone is concerned, there is little personal privacy on telephone conversations; it is easy for an agency or an individual to monitor private telephone lines. If there is a need to protect the telephone communication, there are several steps to be taken and technologies to be employed. In this sense, this thesis concerns the study and implementation of a Secure Communication Development System (SECCODES), so two parts can exchange classified or sensitive information via a telephone line. The analog voice is digitized and encoded by the VC-20 AMBE-MR voice codec into a 4.8 kbps data bit stream; it is processed and encrypted by a Nec V25 processor to be transmitted to a telephone line by a modem. If one has a need or desire to protect his/her telephone communication, SECCODES is suitable to have a secure speech (confidentiality), in this context, the cipher and decipher blocks were designed focusing the easiness to change the parameters and the cryptography algorithm. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-00-00 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/masterThesis |
status_str |
publishedVersion |
format |
masterThesis |
dc.identifier.uri.fl_str_mv |
http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=14 |
url |
http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=14 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Instituto Tecnológico de Aeronáutica |
publisher.none.fl_str_mv |
Instituto Tecnológico de Aeronáutica |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do ITA instname:Instituto Tecnológico de Aeronáutica instacron:ITA |
reponame_str |
Biblioteca Digital de Teses e Dissertações do ITA |
collection |
Biblioteca Digital de Teses e Dissertações do ITA |
instname_str |
Instituto Tecnológico de Aeronáutica |
instacron_str |
ITA |
institution |
ITA |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do ITA - Instituto Tecnológico de Aeronáutica |
repository.mail.fl_str_mv |
|
subject_por_txtF_mv |
Telefonia Criptografia Segurança Comunicação por voz Sistemas digitais Telecomunicações Comunicações Engenharia eletrônica |
_version_ |
1706809252252745728 |