Methods for obtaining DNA-based pseudorandom and random sequences using block encryption

This article is devoted to the newly developed methods for obtaining pseudorandom (PRS) and «conditionally» random DNA-based sequences (RS) using the Ukrainian national standard of block symmetric encryption (BSE) DSTU 7624:2014. The paper discusses the representation of DNA sequences in binary form for the purpose of further usage, and estimates the properties of such "raw" sequences and, most importantly, demonstrates the use of DNA sequence fragments to obtain PRS and RS by encrypting them using block symmetric cipher in the CTR mode and performs their statistical analysis.