Author(s)

Alaa D. Alrehily, Asmaa F. Alotaibi, Suzan B. Almutairy, Mashael S. Alqhtani, Jayaprakash Kar^*

Department of Information Technology, Faculty of Computing & Information Technology, King Abdulaziz University, Jeddah, KSA.

Due to the rapid growth of online transactions on the Internet, authentication, non-repudiation and integrity are very essential security requirements for a secure transaction. To achieve these security goals, digital signature is the most efficient cryptographic primitive. Many authors have proposed this scheme and prove their security and evaluate the efficiency. In our paper, we present comprehensive study of conventional digital signature schemes based on RSA, DSA and ECDSA (Elliptic Curve Digital Signature Algorithm) and the improved version of these scheme.

Digital Signature, RSA, DSA, ECDSA, Security

Alrehily, A. , Alotaibi, A. , Almutairy, S. , Alqhtani, M. and Kar, J. (2015) Conventional and Improved Digital Signature Scheme: A Comparative Study. Journal of Information Security, 6, 59-67. doi: 10.4236/jis.2015.61007.