9 citations · 12 across the 6 of their papers we have counts for
8 papers
A simple coding-decoding algorithm for the Hamming code
Omar Khadir
In this work, we present a new simple way to encode/decode messages transmitted via a noisy channel and protected against errors by the Hamming method. We also propose a fast and e…
A DSA-like digital signature protocol
Leila Zahhafi, Omar Khadir
In this paper we propose a new digital signature protocol inspired by the DSA algorithm. The security and the complexity are analyzed. Our method constitutes an alternative if the…
On sunlet graphs connected to a specific map on
Omar Khadir, László Németh, László Szalay
In this article, we study the structure of the graph implied by a given map on the set , where is an odd prime. The consecutive applications of the map g…
Insecure primitive elements in an ElGamal signature protocol
Omar Khadir
Consider the classical ElGamal digital signature scheme based on the modular relation . In this work, we prove that if we can compute a natural integer $i…
Algorithm for factoring some RSA and Rabin moduli
Omar Khadir
In this paper we present a new efficient algorithm for factoring the RSA and the Rabin moduli in the particular case when the difference between their two prime factors is bounded.…
New variant of ElGamal signature scheme
Omar Khadir
In this paper, a new variant of ElGamal signature scheme is presented and its security analyzed. We also give, for its theoretical interest, a general form of the signature equatio…