TY - JOUR
TI - The security of text data based on cyclic codes over algebraic structure
AU - Bahaddad Adel A
AU - Asif Muhammad
AU - Ashraf Usman M
AU - Asiri Yousef
AU - Alkhalaf Salem
JN - Thermal Science
PY - 2024
VL - 28
IS - 6
SP - 5205
EP - 5215
PT - Article
AB - The demand for network security is increasing exponentially as businesses  strive to protect personal data from theft or loss. Data security is a  paramount concern for both individuals and organizations engaged in various  forms of communication, particularly in cyberspace due to the rise of  digital computing and communication. With the rapid advancement in digital  data exchange, securing information during transmission and storage has  become increasingly critical. Given the extensive use of text in security  agencies and industries, it is crucial to protect confidential text data  from unauthorized access. This paper proposes the use of Bose Chaudhary  Hochquenghem (BCH) codes over the Galois field in a modified advanced  encryption standard (AES) algorithm to secure text data. Secret keys are  generated using the generator polynomial of BCH codes over the Galois field,  which is also applied to construct maximum distance separable (MDS)  matrices. The proposed scheme enhances the mixed column operation and  sub-key construction steps of the AES algorithm using BCH codes over the  Galois field. The secret key, based on the designed distance of BCH codes,  is difficult to predict using exhaustive key search methods. The avalanche  effect test, involving single-bit changes in plaintext and secret keys,  along with the popular national institute of standards and technology (NIST)  test, confirms that the proposed scheme improves ciphertext encryption.  Security analysis results demonstrate better encryption performance for  text data. In the future, this approach could be adapted for encrypting  images, audio, and video.