Digital multisignature schemes without using one-way hash function
Yi Liu · Jisuanji gongcheng yu sheji · 2008
Shieh et al proposed the parallel digital multisignature scheme and the serial digital multisignature scheme which is suitable for mobile code.However,Hwang and Chang presented a forgery attack on the underlying digital signature scheme which is relied on respectively.Firstly,a forgery attack on Shieh's parallel digital multisignature scheme is proposed.Secondly,a new type of basic signature scheme without one-way hash function and message redundant is proposed.A new serial and a parallel digital multisignature scheme are put forward.The scheme both possess the advantage of Shieh scheme and avoid its disadvantage,and then it can resist on forgery attack which is known for us.