In today's world we are being accommodated in a digital era, we are now able to do most of the job in virtual digital online platform. In present time we have almost forgot to visit bank physically. Now we are being accustomed with online banking system, which is accessible 24X 7 and from wherever we are. This virtual form of Banking is very beneficial for the customers for its enormous utility and use ability. The major challenge associated with online banking is the security. The accounts of the customers should be highly secured by some technology so that the customers would not face any kind of fraudulent transaction while using online banking. Digital signature is a way of securing bank accounts just the way we need to sign physical documents in bank while making any transaction, to authenticate the validity of the customer. There is several technologies for encryption of digital signature but Elgamal method is one of the most popular public key cryptography technology. In this paper the method of implementation of digital signature is discussed following which Elgamal DS can be employed with the help of proper code.

E-Banking, Digital Signature, cryptography, Elgamal, Security