New digital signature protocol based on elliptic curves - Ounasser Abid; Jaouad Ettanfouhi; Omar Khadir (CoRR, 2013)

Conditions on the generator for forging ElGamal signature - Omar Khadir (CoRR, 2013)

New variant of ElGamal signature scheme - Omar Khadir (CoRR, 2013)

Algorithm for factoring some RSA and Rabin moduli - Omar Khadir (CoRR, 2013)

Insecure primitive elements in an ElGamal signature protocol. - Omar Khadir (CoRR, 2015)

Factoring multi-power RSA moduli with primes sharing least or most significant bits. - Omar Akchiche; Omar Khadir (Groups Complex. Cryptol., 2016)

QSAR study of 1-(3, 3-diphenylpropyl)-piperidinyl amides and ureas using genetic algorithms and artificial neural networks. - Houda Labjar; Mohamed Kissi; Rokaya Mouhibi; Omar Khadir; Hassan Chaair; Mohamed Zahouily (Int. J. Bioinform. Res. Appl., 2016)

Factoring RSA moduli with primes sharing bits in the middle. - Omar Akchiche; Omar Khadir (Appl. Algebra Eng. Commun. Comput., 2018)

Factoring RSA moduli when a message is close to a multiple of the primes. - Omar Akchiche; Omar Khadir (Int. J. Comput. Math. Comput. Syst. Theory, 2018)

An ElGamal-Like Digital Signature Based on Elliptic Curves. - Leila Zahhafi; Omar Khadir (MSPN, 2019)

Amelioration of a proxy signature using RSA encryption. - Salma Ezziri; Omar Khadir (NISS, 2019)

Anonymous Secure E-voting over a Network for Multiple Elections. - Leila Zahhafi; Omar Khadir (NISS, 2019)

An anonymous electronic voting scheme for multiple elections using a variant of the ElGamal digital signature. - Leila Zahhafi; Omar Khadir (Int. J. Multim. Intell. Secur., 2020)

A DSA-like digital signature protocol. - Leila Zahhafi; Omar Khadir (CoRR, 2021)

A simple coding-decoding algorithm for the Hamming code. - Omar Khadir (CoRR, 2022)