Title of article :
Improving the Rao-Nam Secret Key Cryptosystem Using Regular EDF-QC-LDPC Codes
Author/Authors :
Hooshmand, Reza islamic azad university - Faculty of Engineering, ايران , Hooshmand, Reza sharif university of technology - Information System and Security Lab, Department of Electrical Engineering, تهران, ايران , Eghlidos, Taraneh sharif university of technology - Electronics Research Institute, تهران, ايران , Aref, Mohammad Reza sharif university of technology - Information System and Security Lab, Department of Electrical Engineering, تهران, ايران
Abstract :
This paper proposes an efficient joint secret key encryption-channel coding cryptosystem, based on regular Extended Difference Family Quasi-Cyclic Low- Density Parity-Check codes.The key length of the proposed cryptosystem decreases up to 85 percent using a new efficient compression algorithm. Cryptanalytic methods show that the improved cryptosystem has a significant security advantage over Rao-Nam cryptosystem against chosen plaintext attacks, benefiting from an improvement on the structure of the Rao-Nam cryptosystem and proper choices of code parameters. Moreover, the proposed cryptosystem benefits from the highest code rate and a proper error performance
Keywords :
Rao , Nam Secret Key Cryptosystem , Low , Density Parity , Check Codes , Difference Families
Journal title :
ISeCure - The ISC International Journal of Information Security
Journal title :
ISeCure - The ISC International Journal of Information Security
