Yevseiev, S. P.Tsyhanenko, O. S.Gavrilova, A.Guzhva, V.Milov, O.Moskalenko, V.Opirskyy, I.Roma, O.Tomashevsky, B.Shmatko, O.2021-12-022021-12-022019Development of Niederreiter hybrid crypto-code structure on flawed codes / S. Yevseiev [et al.] // Eastern-European Journal of Enterprise Technologies. – 2019. – Vol. 1, No. 9 (97). – P. 27-38.https://repository.kpi.kharkov.ua/handle/KhPI-Press/55120The use of the Niederreiter modified crypto-code structure (MCCS) with additional initialization vectors (with many invalid positional vectors of the error vector and multiple positions of shortening the error vector) requires an increase in the speed of cryptographic transformation of the system as a whole. For this purpose, it is proposed to use flawed codes. Flawed codes allow you to increase the speed of code transformations by reducing the power of the field while damaging the plaintext and reducing the amount of data transferred by damaging the ciphertext. This approach allows the construction of hybrid crypto-code structures based on the synthesis of Niederreiter modified crypto-code structures on modified (shortened or extended) codes on elliptic curves with damaging procedures. A significant difference from classical hybrid (complex) cryptosystems is the use of asymmetric cryptosystems to ensure data security with fast crypto-transformation procedures (generation and decoding of a codogram). The paper discusses methods for constructing flawed codes and approaches for using the Niederreiter hybrid crypto-code structure on modified elliptic codes. Practical algorithms are proposed for using the MV2 damage mechanism in the Niederreiter crypto-code structure on modified elliptic codes, which makes it possible to implement a hybrid crypto-code structure. The results of a comparative assessment of energy consumption for the formation of an information package with various methods of damage, which determined the choice of damage method in practical algorithms. The conducted studies confirm the competitive efficiency of the proposed cryptosystem in Internet technologies and mobile networks, ensuring practical implementation on modern platforms and the necessary cryptographic strength under post-quantum cryptography.enflawed codesNiederreiter hybrid crypto-code structuremodified elliptic codesmultichannel cryptographyArticledoi.org/10.15587/1729-4061.2019.156620https://orcid.org/0000-0003-1647-6444https://orcid.org/0000-0002-5784-8438https://orcid.org/0000-0002-2015-8927https://orcid.org/0000-0001-6832-4480https://orcid.org/0000-0001-6135-2120