Den 19 nov 2015 21:37 skrev "Jeff Burdges" <[email protected]>:
> There is however another approach that appears to work : > > Invent a one-sided large block cypher by block chaining regular block > cyphers of the size of one hop's information. We want the property > that alterations to cypertext create uncontrolled changes to all > plaintext before the alteration, or after if we reverse the orientation > of the Sphinx header. If an attacker modifies the header, then any > address containing or before the modified bit decrypts as scrabbled. No need to reinvent all-or-nothing transforms, they're already here. https://en.wikipedia.org/wiki/All-or-nothing_transform
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