Something About All or Nothing (Transforms)
- Cite this article as:
- Stinson, D.R. Designs, Codes and Cryptography (2001) 22: 133. doi:10.1023/A:1008304703074
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Inthis short note, we study all-or-nothing transforms, which wererecently proposed by Rivest as a mode of operation for blockciphers. We study transforms of this type that provide unconditionalsecurity. A simple construction for linear transforms is given,and some existence and non-existence results for general transformsare derived from a combinatorial characterization of these objects.