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The paper presents analysis of the possibility of using selected hash functions submitted for the SHA-3 competition in the SDEx encryption method. The group of these functions will include the finalists of the SHA-3 competition, i.e. BLAKE, Grøstl, JH, Keccak, Skein. The aim of the analysis is to develop more secure and faster cryptographic algorithm compared to the current version of the SDEx method...
In the paper, the communication security is discussed. Nowadays applications mainly do not support end-to-end security. The enhanced SDEx cryptographic method and analysis of its security and the analysis of its robustness are presented. The analysis is focused on statistical randomness tests proposed by NIST. These tests are derived in order to check the randomness of the ciphertext and are often...
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