Research on Encryption Key Extraction From Iris Feature
Wei Hao, Yong Qi Wei · International Journal of Security and Its Applications · 2015
The current encryption algorithm has some problems that key length is long, which is difficult to be memorized and kept so that a potential threat is caused to information security.The encryption key extracted from the biological feature is used for the encryption method, which has become a hotspot of the research.The Haar wavelet decomposition is carried out to the iris image, to extract the third-layer high frequency coefficient as the iris feature code.The random mapping function is used to generate a 128 -bit key.chi-square (χ 2 ) test is used to analyze the key safety extracted.The results show that the key extracted from iris feature can meet requirements of the randomness and security of the encryption algorithm.