Secure Access of Smart Cards Using Elliptic Curve Cryptosystems

Public Key Cryptography (PKC) is recently playing an essential role in electronic banking and financial transactions. Elliptic Curve Cryptography (ECC) is one of the best public key techniques for its small key size and high security and is suitable for secure access of smart cards because implementation on smart cards is challenging to the platforms memory, bandwidth, and computation constraints. This paper proposes a mutual authentication protocol based on ECDSA for a secure access of smart card which allows both the server and the user to verify each other´s authenticity. Our scheme is efficient as it results in reducing cost and improving performance by using ECC in smart cards.