Strumok keystream generator

This work presents the main results of development of a new keystream generator, which is named “Strumok”, and offered as a candidate for the national symmetric encryption standard of Ukraine. Strumok is built on SNOW2.0-like schema of the summation generator; increased secret key length and the initialization vector allow using reliably the stream cipher even taking into account quantum cryptographic analysis methods. There are basic transformation and individual results from the cipher performance research, here the generator is shown, which is capable of forming a keystream at speeds exceeding 10 Gbit per sec.