KUBÍČEK, Karel, Jiří NOVOTNÝ, Petr ŠVENDA a Martin UKROP. New results on reduced-round Tiny Encryption Algorithm using genetic programming. Infocommunications Journal. Budapest: Scientific Association for Infocommunications, 2016, roč. 8, č. 1, s. 2-9. ISSN 2061-2079. |
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@article{1362660, author = {Kubíček, Karel and Novotný, Jiří and Švenda, Petr and Ukrop, Martin}, article_location = {Budapest}, article_number = {1}, keywords = {randomness statistical testing; TEA; genetic algorithms; randomness distinguisher; software circuit}, language = {eng}, issn = {2061-2079}, journal = {Infocommunications Journal}, title = {New results on reduced-round Tiny Encryption Algorithm using genetic programming}, url = {http://www.infocommunications.hu/2016_1}, volume = {8}, year = {2016} }
TY - JOUR ID - 1362660 AU - Kubíček, Karel - Novotný, Jiří - Švenda, Petr - Ukrop, Martin PY - 2016 TI - New results on reduced-round Tiny Encryption Algorithm using genetic programming JF - Infocommunications Journal VL - 8 IS - 1 SP - 2-9 EP - 2-9 PB - Scientific Association for Infocommunications SN - 20612079 KW - randomness statistical testing KW - TEA KW - genetic algorithms KW - randomness distinguisher KW - software circuit UR - http://www.infocommunications.hu/2016_1 L2 - http://www.infocommunications.hu/2016_1 N2 - Analysis of cryptoprimitives usually requires extensive work of a skilled cryptanalyst. Some automation is possible, e.g. by using randomness testing batteries such as Statistical Test Suite from NIST (NIST STS) or Dieharder. Such batteries compare the statistical properties of the functions output stream to the theoretical values. A potential drawback is a limitation to predefined tested patterns. However, there is a new approach EACirc is a genetically inspired randomness testing framework based on finding a dynamically constructed test. This test works as a probabilistic distinguisher separating cipher outputs from truly random data. In this work, we use EACirc to analyze the outputs of Tiny Encryption Algorithm (TEA). TEA was selected as a frequently used benchmark algorithm for cryptanalytic approaches based on genetic algorithms. In this paper, we provide results of EACirc applied to TEA ciphertext created from differently structured plaintext. We compare the methodology and results with previous approaches for limited-round TEA. A different construction of EACirc tests also allows us to determine which part of ciphers output is relevant to the decision of a well-performing randomness distinguisher. ER -
KUBÍČEK, Karel, Jiří NOVOTNÝ, Petr ŠVENDA a Martin UKROP. New results on reduced-round Tiny Encryption Algorithm using genetic programming. \textit{Infocommunications Journal}. Budapest: Scientific Association for Infocommunications, 2016, roč.~8, č.~1, s.~2-9. ISSN~2061-2079.
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