Question: Based on what, a form of polyalphabetic substitution uses a series of interwoven Caesar ciphers for encrypting alphabetic text?
Sentence (from "Sukhotin's algorithm"): It may also be of use in some of substitution ciphers and has been considered in deciphering the Voynich manuscript, though one problem is to agree on the set of symbols the manuscript is written in.
Relevant evidence: No