Fault-Tolerant Visual Secret Sharing Scheme Using Meaningful Shares
Yu-Chun Chung, Jia-Hao Ou, Justie Su-Tzu Juan · 2019
Security problem is becoming increasingly crucial in many fields. In order to ensure that secret images are not being stolen during information transmission, a preferred way is to encrypt them before transmission. Visual secret sharing scheme (VSSS) is a scheme of secure communication technology in which a secret image is encrypted into some shares and then restored through human vision by stacking shares directly. A fault-tolerant VSSS is a VSSS which is not necessary to align the shares precisely when recovering the secret image. In the other side, encrypting a secret image into two meaningless shares might invite the attacker's attention. Therefore, this paper proposed two fault- tolerant VSSS which encrypt one secret image into two meaningful shares, and with the fault-tolerant mechanism.