Digital certificates and threshold cryptography
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.6/3704 |
Resumo: | This dissertation discusses the use of secret sharing cryptographic protocols for distributing and sharing of secret documents, in our case PDF documents. We discuss the advantages and uses of such a system in the context of collaborative environments. Description of the cryptographic protocol involved and the necessary Public Key Infrastructure (PKI) shall be presented. We also provide an implementation of this framework as a “proof of concept” and fundament the use of a certificate extension as the basis for threshold cryptography. Details of the shared secret distribution protocol and shared secret recovery protocol shall be given as well as the associated technical implementation details. The actual secret sharing algorithm implemented at this stage is based on an existing well known secret sharing scheme that uses polynomial interpolation over a finite field. Finally we conclude with a practical assessment of our prototype. |
id |
RCAP_7c45c143cba1e41491dadccb95ce3e43 |
---|---|
oai_identifier_str |
oai:ubibliorum.ubi.pt:10400.6/3704 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Digital certificates and threshold cryptographyCriptografiaCriptografia - Partilha de segredoInfra-estrutura de chave pública (PKI)Certificação digitalAssinatura digital - Chave públicaThis dissertation discusses the use of secret sharing cryptographic protocols for distributing and sharing of secret documents, in our case PDF documents. We discuss the advantages and uses of such a system in the context of collaborative environments. Description of the cryptographic protocol involved and the necessary Public Key Infrastructure (PKI) shall be presented. We also provide an implementation of this framework as a “proof of concept” and fundament the use of a certificate extension as the basis for threshold cryptography. Details of the shared secret distribution protocol and shared secret recovery protocol shall be given as well as the associated technical implementation details. The actual secret sharing algorithm implemented at this stage is based on an existing well known secret sharing scheme that uses polynomial interpolation over a finite field. Finally we conclude with a practical assessment of our prototype.Crocker, Paul AndrewuBibliorumPeixinho, Adolfo Barbosa do Amaral2015-07-13T16:20:01Z20132013-102013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.6/3704TID:201289857enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-15T09:39:21Zoai:ubibliorum.ubi.pt:10400.6/3704Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:44:35.821200Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Digital certificates and threshold cryptography |
title |
Digital certificates and threshold cryptography |
spellingShingle |
Digital certificates and threshold cryptography Peixinho, Adolfo Barbosa do Amaral Criptografia Criptografia - Partilha de segredo Infra-estrutura de chave pública (PKI) Certificação digital Assinatura digital - Chave pública |
title_short |
Digital certificates and threshold cryptography |
title_full |
Digital certificates and threshold cryptography |
title_fullStr |
Digital certificates and threshold cryptography |
title_full_unstemmed |
Digital certificates and threshold cryptography |
title_sort |
Digital certificates and threshold cryptography |
author |
Peixinho, Adolfo Barbosa do Amaral |
author_facet |
Peixinho, Adolfo Barbosa do Amaral |
author_role |
author |
dc.contributor.none.fl_str_mv |
Crocker, Paul Andrew uBibliorum |
dc.contributor.author.fl_str_mv |
Peixinho, Adolfo Barbosa do Amaral |
dc.subject.por.fl_str_mv |
Criptografia Criptografia - Partilha de segredo Infra-estrutura de chave pública (PKI) Certificação digital Assinatura digital - Chave pública |
topic |
Criptografia Criptografia - Partilha de segredo Infra-estrutura de chave pública (PKI) Certificação digital Assinatura digital - Chave pública |
description |
This dissertation discusses the use of secret sharing cryptographic protocols for distributing and sharing of secret documents, in our case PDF documents. We discuss the advantages and uses of such a system in the context of collaborative environments. Description of the cryptographic protocol involved and the necessary Public Key Infrastructure (PKI) shall be presented. We also provide an implementation of this framework as a “proof of concept” and fundament the use of a certificate extension as the basis for threshold cryptography. Details of the shared secret distribution protocol and shared secret recovery protocol shall be given as well as the associated technical implementation details. The actual secret sharing algorithm implemented at this stage is based on an existing well known secret sharing scheme that uses polynomial interpolation over a finite field. Finally we conclude with a practical assessment of our prototype. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2013-10 2013-01-01T00:00:00Z 2015-07-13T16:20:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.6/3704 TID:201289857 |
url |
http://hdl.handle.net/10400.6/3704 |
identifier_str_mv |
TID:201289857 |
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.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799136342882385920 |