Extension and application of El-Gamal encryption scheme

Security is an essential requirement in the industrial world. Information leakage to competitors can cause financial problems for a company. Moreover, the wide use of the Internet as an environment for doing business and shopping calls for secure electronic transactions. Confidentiality of the information is preserved through the use of encryption schemes. This paper proposes a new three-party extension of ElGamal encryption scheme and a multi-receiver extension of ElGamal encryption scheme. For both of the two proposed schemes, security and performance are analyzed. Finally, the application of El-Gamal encryption scheme in internet voting is studied for its importance nowadays.