Improvements on Audio and Optical Cryptography

楊慶隆(Ching-Nung Yang)

《Journal of Information Science and Engineering》 18卷3期 (2002/05) Pp. 381-391

https://doi.org/10.6688/JISE.2002.18.3.1

並列摘要

Audio and optical cryptography schemes in [1] are secret sharing schemes that protect audio and visual secrets by using sounds and images, respectively. However, 2-out-of-n schemes in [1] are constructed by [log2 n] independent 2-out-of-2 schemes, meaning so that a 2-out-of-n scheme needs [log2 n] different cover sounds or images. More cover sounds (images) will be more difficult for the human hearing (vision) system to hear (see) the secret. In this paper new constructions for the 2-out-of-n audio and optical secret sharing schemes are proposed. Our schemes only need one cover sound or image.

並列關鍵字

visual cryptography ； audio cryptography ； secret sharing scheme ； optical cryptography ； optical interferometer