Bita Ture Savadkoohi - Department of Computer and Electrical Engineering, Seraj Higher Education Institute, Next to Municipal Museum, Maghsoodieh Avenue, Nowbar Alley, Tabriz, Iran
Karim Geyratmand - Department of Computer and Electrical Engineering, Azad University, Azarshahr Branch, Azarshahr,Iran

Nowadays, applications of internet make greats influence on the traditional working. Thus, for the most business stepping into Electronic commerce (E-commerce) is a great advantage. As a result, it helps them to easy operations with suppliers as well as with customers, improves customer’s services and step into new markets. At the sametime, applications of digital signature technology are on the rise for the E-commerce security because of its data integrity protecting and privacy. In this paper first, we apply Rivest, Shamir and Adleman (RSA) algorithm to provide security in digital signature. Then, the digital signature’s security increases with obscuration the key in RSA algorithm.

Electronic Commerce, Digital Signature, RSA Algorithm