Image encryption plays a crucial role in the field of information security. Most of the existing image encryption
techniques have some kind of security flaws and performance related issues. This paper proposes three level of security;
Image scrambling is first level security and second level security is chaotic based image encryption. Third level security is
achieved using random LSB based watermarking. Fingerprint is considered as original image and iris is considered as
chaotic image. Fingerprint and iris are scrambled; In order to obtain encrypted image, scrambled iris and fingerprint
image values are substituted using XoR operation. Finally encrypted image is embedded in face image. The decryption is
reverse process of encryption process and it restores the image to its original form. The proposed approach is evaluated
using standard security measures and statistical methods; result shows that proposed approach performs better than
existing method in the cryptography domain.
M.Marimuthu, A.Kannammal (2015).
"WATERMARKING BASED ENHANCED MULTIMODAL BIOMETRIC AUTHENTICATION TECHNIQUE".
International Journal of Contemporary Research in Computer Science and Technology,
1(9), pp. 334-341.
