The most widely used techniques of secret writing are steganography and cryptography. Cryptography convert the plaintext into the cipher text. Steganography is a technique which is used to hide the information. Many steganography techniques are used to improve the security level for protect the information from an attacker. This paper describes the DNA steganography using elliptic curve cryptography secure hash technique, which improves the security level of image file and it also reduce the computational time.

Keywords : Steganography, Elliptic curve cryptography, secure hash algorithm, DNA.