This research aims to develop a new method to secure finger-vein (FV) biometric information during user authentication process against different types of network security attacks. Hence, a novel method was proposed to solve the existing problem in biometric authentication systems, which is the leakage of biometric information. Our proposed method meets information security definition standard requirements (CIA). The research design was carried out in two stages. In the first stage, the researcher developed a new merge algorithm in order to produce a new hybrid biometric pattern by merging Radio Frequency Identification (RFID) features with FV biometric features to increase the randomization, and enhance the security and structure of the new pattern. While, in the second stage, a new secure user verification method is developed based on blockchain technique, AES algorithm and a new steganography method that is based on Particle Swarm Optimization (PSO) algorithm. A dataset was used comp.....

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