EAN: 9783031501241

SPRINGERBRIEFS IN INFORMATION SECURITY AND CRYP...

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.

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