Shi-Jinn Horng, Shiang-Feng Tzeng, Pingzhi Fan, Xian Wang, Tianrui Li, Muhammad Khurram Khan, Vol. 7, No. 6, June 25, 2013
10.3837/tiis.2013.06.010

• Convertible
• Extended euclidean algorithm
• Random Oracle
• undeniable signature.