Problems, solutions and experience of the first international student's Olympiad in cryptography
S. Agievich, A. Gorodilova, N. Kolomeeс, S. Nikova, B. Preneel, V. Rijmen, G. Shushuev, N. Tokareva, V. Vitkup

References
1.	Nyberg K., “Differentially uniform mappings for cryptography”, Eurocrypt'93, LNCS, 765, 1994, 55–64
2.	Browning K. A., Dillon J. F., McQuistan M. T., Wolfe A. J., “An APN Permutation in Dimension Six”, Post-proceedings of the 9-th Intern. Conf. on Finite Fields and Their Applications Fq'09, Contemporary Math., 518, AMS, 2010, 33–42
3.	Daemen J., Rijmen V., The Design of Rijndael: AES – The Advanced Encryption Standard, Springer, 2002, 238 pp.
4.	Qu L., Fu S., Dai Q., Li C., When a Boolean Function can be Expressed as the Sum of two Bent Functions, Cryptology ePrint Archive, 2014/048
5.	Zieschang T., “Combinatorial Properties of Basic Encryption Operations”, Eurocrypt'97, LNCS, 1233, 1997, 14–26
6.	Agibalov G. P., “Shifry s vodyanymi znakami [Watermarking Ciphers]”, Prikladnaya diskretnaya matematika. Prilozhenie, 2015, no. 8, 54–59 (in Russian)
7.	http://writeupsd.blogspot.ru/2014/11/apn-permutation-finder.html