Open Science Research Excellence
H. El-Kamchouchi and  Heba Gaber and  Fatma Ahmed and  Dalia H. El-Kamchouchi,  A Secure Proxy Signature Scheme with Fault Tolerance Based on RSA System.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2016, vol. 114(6). 1109 - 1113[viewed 21 August 2019]. Available from: http://waset.org/publications/10004632.