以往電子支票有開立工具攜帶不便的缺點，為了提升國內支票使用者對電子票據的接受度，在這裡假設以使用者自身SmartPhone作為開票工具來替代以往所必需的電腦，並加入ElGamal簽署機制來為電子簽章的有效安全性把關，最後在探討此種方法所帶來的優缺點及部分漏洞。

Due to the inconvenience of carrying notebook computers, electronic checks are not so popularly accepted by most business people of our country in the past. Instead of notebook computers, we use smart phones to make it more accessible. In addition, we adopt ElGamal signature scheme to increase the level of security concern. Finally, we discuss the strength and weakness of our system.