Data encryption is an important issue and widely used in recent times to ensure security. Elliptic Curve Cryptography (ECC) is one of the most efficient techniques that are used in public key cryptography, because it is difficult for the adversary to solve the elliptic curve discrete logarithm problem to know the secret key that is used in encryption and decryption processes. ECC is more complex and thus it provides greater security and more efficient performance. This paper aims to propose an enhanced approach of elliptic curve cryptosystem based Unicode representation. The proposed technique transforms the text message into an affine point called Pm on the elliptic curve, over the finite field GF(p). Each character in the text message is represented by its Unicode value denoted by two digits and separated into two values. Then, the addition and doubling operations are performed on each value to obtain an affine point on elliptic curve. This transformation makes cryptosystem more secure and complicated to resist the adversaries. Further, the use of Unicode representation will provide better performance in this regard
