The circulant hash revisited

Autor: Araujo Filipe, Neves Samuel

Publikováno v: Journal of Mathematical Cryptology, Vol 15, Iss 1, Pp 250-257 (2020)

At ProvSec 2013, Minematsu presented the circulant hash, an almost-xor universal hash using only the xor and rotation operations. The circulant hash is a variant of Carter and Wegman’s H3 hash as well as Krawczyk’s Toeplitz hash, both of which ar

Externí odkaz: https://doaj.org/article/744a05522d8e4af6a7e50a6a6d4555c6

EliMAC: Speeding Up LightMAC by around 20%

Autor: Dobraunig, Christoph, Mennink, Bart, Neves, Samuel

Publikováno v: IACR Transactions on Symmetric Cryptology; Volume 2023, Issue 2; 69-93

Universal hash functions play a prominent role in the design of message authentication codes and the like. Whereas it is known how to build highly efficient sequential universal hash functions, parallel non-algebraic universal hash function designs a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=issn2519173X::61d125b9d0967e67ac045caf9e7d6edb
https://tosc.iacr.org/index.php/ToSC/article/view/10979

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Optimal PRFs from Blockcipher Designs

Autor: Mennink, Bart, Neves, Samuel

Publikováno v: IACR Transactions on Symmetric Cryptology, Pp 228-252 (2017)
IACR Transactions on Symmetric Cryptology, 2017, 228-252
IACR Transactions on Symmetric Cryptology, 2017, 3, pp. 228-252
IACR Transactions on Symmetric Cryptology; Volume 2017, Issue 3; 228-252

Cryptographic modes built on top of a blockcipher usually rely on the assumption that this primitive behaves like a pseudorandom permutation (PRP). For many of these modes, including counter mode and GCM, stronger security guarantees could be derived

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::153fa876d33b8d3e467c6a3bba894559
https://hdl.handle.net/https://repository.ubn.ru.nl/handle/2066/178460

Integração dos métodos de georradar e indução eletromagnética para o mapeamento de grutas: aplicação à lapa do sono - Arrábida

Autor: Caldeira, Bento, Oliveira, Rui Jorge, Rocha, Leonor, Borges, José Fernando, Neves, Samuel, Fernandes, Rosário

Publikováno v: digitAR-Revista Digital de Arqueologia, Arquitectura e Artes; N.º 3 (2016): digitAR nº 3; 31-36
digitAR-Digital Journal of Archaeology, Architecture and Arts; No. 3 (2016); 31-36
digitAR-Revista Digital de Arqueologia, Arquitectura e Artes; Núm. 3 (2016); 31-36
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP

This paper presents the results of the geophysical survey to mapping a section of the “Lapa do sono” cave, situated in Serra da Arrábida (Sesimbra), which is known to have had funerary occupation in the old Neolithic Age. Nowadays this cave find

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ff919c7581cf00c81df8efb44b60b030
https://impactum-journals.uc.pt/digitar/article/view/_3_4