Two Efficient RSA Digital Multisignature and Blind Multisignature Schemes. - Sattar J. Aboud; Mohammad Ahmed Al-Fayoumi (Computational Intelligence, 2005)

An Efficient RSA Public Key Encryption Scheme. - Sattar J. Aboud; Mohammad Ahmed Al-Fayoumi; Mustafa Al-Fayoumi; Haidar S. Jabbar (ITNG, 2008)

A New Digital Signature Scheme Based on Integer Factoring and Discrete Logarithm Problem. - Mustafa Al-Fayoumi; Sattar J. Aboud; Mohammad Ahmed Al-Fayoumi (Int. J. Comput. Their Appl., 2010)