The Rank-then-Encipher Approach
原始观点
Format-Preserving Encryption
4 The Rank-then-Encipher Approach
引用1
Hybrid diffusion-based visual image encryption for secure cloud storage
2.2 Sum-preserving encryption
Bellare introduced the concept of format-preserving encryption (FPE), a technique that assures the consistency of data formats throughout the encryption process [49]. Subsequently, Tajik further refined the concept by developing sum-preserving encryption (SPE), a method that guarantees the invariance of pixel sums before and after the encryption process [30]. The specific steps of SPE are outlined as follows:
可以看到引用时的表达更加通俗易懂了。
原始观点中，形式化的内容偏多，理解上相对引用1要费力一些。
引用2
HF-TPE: High-Fidelity Thumbnail- Preserving Encryption
算法1
这里的算法描述略显抽象，但是，除此之外还有对应的文字描述，二者配合起来，就显得容易多了。
和保持的基本理解：
引用3
Balancing Image Privacy and Usability with Thumbnail-Preserving Encryption
直接进入简单易懂的模式
原文地址：https://blog.csdn.net/superdont/article/details/143666753
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