Block Ciphers

Block ciphers are a class of symmetric
cryptosystems used for secure
communications. The project examines
the strength of various types of
block ciphers using generalizations of
linear cryptanalysis and a new
approach called the interpolation attack.
Moreover, relations between coding theory
and cryptography are
investigated, e.g., the connection between
the theory of S-boxes used
in block ciphers and the theory of linear codes.
The project also examines some complexity
theory related issues
concerning cryptography.