By Sara Foresti, Giuseppe Persiano

This booklet constitutes the refereed lawsuits of the fifteenth overseas convention on Cryptology and community safety, CANS 2016, held in Milan, Italy, in November 2016.

The 30 complete papers awarded including 18 brief papers and eight poster papers have been conscientiously reviewed and chosen from 116 submissions. The papers are equipped within the following topical sections: cryptanalysis of symmetric key; aspect channel assaults and implementation; lattice-based cryptography, digital deepest community; signatures and hash; multi occasion computation; symmetric cryptography and authentication; approach defense, sensible and homomorphic encryption; info theoretic defense; malware and assaults; multi get together computation and practical encryption; and community defense, privateness, and authentication.

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Additional resources for Cryptology and Network Security: 15th International Conference, CANS 2016, Milan, Italy, November 14-16, 2016, Proceedings

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Finally, we exhaustively search remaining keys. The time complexity is 2128−N , and it is the dominant complexity. Therefore, the data complexity is N × 260 , and the time complexity is 2128−N for N ∈ {1, 2, . . , 16}. 10 5 Conclusion We proposed the compact representation for the bit-based division property in this paper. It is difficult to apply the bit-based division property to block ciphers whose block length is over 32 because of high time and memory complexity. The compact representation partially solves this problem.

Compared with the previous SCAREs, our approach uses less a priori knowledge, covers more block cipher instances in a completely non-profiled manner. We have verified our attack with real-life measurements from an unprotected software implementation of DES. Experiments confirm that our attack works well with realistic measurements, extracting valuable information for experienced attackers. Although our approach still has some limitations, we believe it can serve as an alternative tool for reverse engineering in the future.

None of these algorithms were able to correctly recover all the plaintext and achieve full success. In fact, Delman [7] concluded that the genetic algorithm-based approach did not deserve further effort. He stated that further investigation in traditional cryptanalysis techniques was warranted rather than for genetic algorithms. Two heuristics were adopted by Russell, Clark and Stepeny [19]. They used the Ant Colony System algorithm which used a dictionary to recognise the plaintext, and bigrams to indicate adjacent columns.

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