WEAKNESS ON CRYPTOGRAPHIC SCHEMES BASED ON REGULAR LDPC CODES
Omessaad Hamdi1 , Manel abdelhedi2, Ammar Bouallegue2, Sami Harari3
1 SYSTEL, SUPCOM, Tunisia
2 SYSCOM, ENIT, Tunisia
3 SIS, USTV, France
ABSTRACT
We propose a method to recover the structure of a randomly permuted chained code and how to cryptanalyse cryptographic schemes based on these kinds of error coding. As application of these methods is a cryptographic schema using regular Low Density Parity Check (LDPC) Codes. This result prohibits the use of chained code and particularly regular LDPC codes on cryptography
KEYWORDS:
Cryptography, Chained Codes, LDPC Codes, Attack, Complexity.
Original Source Link : http://airccse.org/journal/nsa/1010s5.pdf
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