The doctoral dissertation  of student Hawraa Abdul-Razzaq Khalaf was discussed at the Faculty of Science at Basra University, entitled
“Secure optical encryption systems based on interference for biometric images.”
The thesis included the development of innovative systems for encrypting and decrypting dual images by combining optical interference and spatial coding, to address the shadow problem, increase system capacity, and enhance security.
The study aimed to develop advanced techniques in the field of optical encryption that can be adopted in biometric applications. The results showed that the proposed methods are practical and effective, and the fingerprint and iris images demonstrated high accuracy and reliability. The results also showed that the asymmetric system, which relies on fingerprints as secret keys, has the advantage of eliminating the need for key exchange while achieving greater security.
The thesis concluded that the developed technologies represent an important step towards secure and effective optical encryption systems, recommending their application in sensitive security fields, practical testing, and integration with artificial intelligence technologies to enhance their performance and expand their areas of use.