| Full text | |
| Author(s): |
Machicao, Jeaneth
[1]
;
Baetens, Jan M.
[2]
;
Marco, Anderson G.
[1]
;
De Baets, Bernard
[2]
;
Bruno, Odemir M.
[1]
Total Authors: 5
|
| Affiliation: | [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
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION; v. 29, n. 1-3, p. 102-115, DEC 2015. |
| Web of Science Citations: | 1 |
| Abstract | |
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) | |
| FAPESP's process: | 11/01523-1 - Computer vision methods applied to the identification and analysis of plants |
| Grantee: | Odemir Martinez Bruno |
| Support Opportunities: | Regular Research Grants |