| Texto completo | |
| Autor(es): |
Machicao, Jeaneth
[1]
;
Baetens, Jan M.
[2]
;
Marco, Anderson G.
[1]
;
De Baets, Bernard
[2]
;
Bruno, Odemir M.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Sao Carlos Inst Phys, Sci Comp Grp, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Ghent, Dept Math Modelling Stat & Bioinformat, KERMIT, B-9000 Ghent - Belgium
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION; v. 29, n. 1-3, p. 102-115, DEC 2015. |
| Citações Web of Science: | 1 |
| Resumo | |
Evidence of signatures associated with cryptographic modes of operation is established. Motivated by some analogies between cryptographic and dynamical systems, in particular with chaos theory, we propose an algorithm based on Lyapunov exponents of discrete dynamical systems to estimate the divergence among ciphertexts as the encryption algorithm is applied iteratively. The results allow to distinguish among six modes of operation, namely ECB, CBC, OFB, CFB, CTR and PCBC using DES, IDEA, TEA and XTEA block ciphers of 64 bits, as well as AES, RC6, Twofish, Seed, Serpent and Camellia block ciphers of 128 bits. Furthermore, the proposed methodology enables a classification of modes of operation of cryptographic systems according to their strength. (C) 2015 Published by Elsevier B.V. (AU) | |
| Processo FAPESP: | 11/01523-1 - Métodos de visão computacional aplicados à identificação e análise de plantas |
| Beneficiário: | Odemir Martinez Bruno |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |