Mechkaroska, Daniela. creator author. aut http://id.loc.gov/vocabulary/relators/aut Popovska-Mitrovikj, Aleksandra. author. aut http://id.loc.gov/vocabulary/relators/aut Bakeva, Verica. author. aut http://id.loc.gov/vocabulary/relators/aut SpringerLink (Online service) text sz 2024 1st ed. 2024. monographic eng

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access XII, 90 p. 59 illus., 18 illus. in color. online resource. This book presents the concept of cryptcoding which arises from the need to obtain secure and accurate transmission. Therefore, it is necessary to improve constantly existing and develop new algorithms that will ensure accurate and secure data transfer. This leads to the intensive development of coding theory and cryptography as scientific fields which solve these problems. To ensure efficient and secure data transmission at the same time, the concept of cryptcoding is developed such that the coding and encryption processes are merged into one process. Cryptcodes provide correction of a certain number of errors in the transmitted message and data confidentiality, using only one algorithm. The main research in this field is to define new algorithms for coding that detects and corrects errors, random codes, stream ciphers, block ciphers, pseudo-random generators, hash functions, etc. This monograph examines an application of quasigroups for designing error-correcting cryptcodes, called Random Codes Based on Quasigroups (RCBQ ). These codes are a combination of cryptographic algorithms and error-correcting codes and depend on several parameters. Some modifications (new coding/decoding algorithms) of RCBQ for improving their performances for transmission ordinary messages, images, and audio files trough a binary-symmetric channel, Gaussian channel, and burst channels are considered. Also, authors propose and analyze filter for visually enhance of the decoded images and improving the quality of decoded audio files. Quasigroups and quasigroups string transformation -- Cryptcodes based on quasigroup -- Experimental results for cryptcodes based on quasigroups for transmission through a binary-symmetric channel -- Experimental results for cryptcodes based on quasigroups for transmission through a Gaussian channel -- Fast algorithms for cryptcodes based on quasigroups -- Cryptcodes based on quasigroups for burst channels. by Daniela Mechkaroska, Aleksandra Popovska-Mitrovikj, Verica Bakeva. Data protection Coding theory Information theory Computer networks  Cryptography Data encryption (Computer science) Set theory Algebra Data and Information Security Coding and Information Theory Computer Communication Networks Cryptology Set Theory Order, Lattices, Ordered Algebraic Structures QA76.9.A25 9783031501258 https://doi.org/10.1007/978-3-031-50125-8 https://doi.org/10.1007/978-3-031-50125-8 240112 20251030110920.0 978-3-031-50125-8