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Essential secret image sharing with increasable shadows

机译:基本秘密图像共享,阴影增加

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摘要

Li et al. and Yang et al. proposed (t, s, k, n)-essential secret image sharing methods to share a secret image into essential shadows and nonessential shadows. However, if the shadows have been distributed to the holders and extra shadows are required, the processes of regenerating and retransmitting shadows are necessary. In the proposed method, when receiving t essential shadows and k - t nonessential shadows, the total size of the adopted shadow is the same as the size of the secret image. Most importantly, the proposed method achieves less size of total required shadows (when using the minimal essential shadows) than what was proposed by Li et al. and achieves less size of essential shadow than the method contended by Yang et al. Moreover, we can have the additional shadows relate to other existing shadows without regenerating.
机译:Li等。和杨等。提出了(t,s,k,n)基本秘密图像共享方法,以将秘密图像共享为基本阴影和非必要阴影。但是,如果阴影已分配给持有人,并且需要额外的阴影,则必须重新生成和重新传输阴影。在所提出的方法中,当接收t个基本阴影和k-t个非必要阴影时,所采用的阴影的总大小与秘密图像的大小相同。最重要的是,与Li等人提出的方法相比,所提出的方法获得的总所需阴影大小(使用最小必需阴影时)更小。与Yang等人提出的方法相比,实现的基本阴影尺寸更小。此外,我们可以使其他阴影与其他现有阴影相关,而无需重新生成。

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